What We Test For
The Dor Yeshorim program was created with extreme care under the guidance and support of leading rabbinical authorities and medical professionals. Every policy in place and every disease that we screen for is carefully evaluated and scrutinized. Results are never divulged. This is one of the fundamentals of Dor Yeshorim and what separates us from other genetic testing organizations.
Our policy is that we will only test for diseases that present serious health issues and for which there is no cure. Rather than being an organization that is here solely to test for a long list of disease, we recognize that we are an integral part of the matchmaking process for Jewish people across the globe; a weighty responsibility indeed. Dor Yeshorim only tests for recessive diseases where pain and suffering is avoidable. This is because recessive diseases can only be passed to a child when both parents are carriers.
Dor Yeshorim’s panel of tests therefore currently screens for debilitating and recessive genetic diseases most commonly occurring within the Jewish community. These specific tests have been painstakingly researched and chosen based on their frequency and severity of symptoms. The decision to add a disease to the Dor Yeshorim panel of tests is not a simple one. We are forever mindful of our mission to ensure healthy families. At the same time, we must employ a balanced approach to adding a test to the panel; just because a test exists for the disease, does not mean it warrants screening.
Our goal is to make matches, not break them. We work closely with scientists and our rabbinical board to make sure the tests we conduct are all in our community’s best interests.
- Standard Panel
- Hearing Loss Panel
- Advanced Panel
Thanks to new testing technology, the “Standard Panel” has been updated and is now available for all new DY participants.
Prevalent by: Iranian Jews.
Gene: CNGA3
Mutations: p.G557R, p.V529M
Carrier Frequency: 1 of 100
Achromatopsia is a condition characterized by partial or total absence of color vision. In some cases, it also involves increased sensitivity to light (photophobia), involuntary eye movements (nystagmus), and significantly reduced sharpness of vision (low visual acuity). Affected individuals can also have farsightedness (hyperopia) or, less commonly, nearsightedness (myopia). These vision problems develop in the first few months of life.
Prevalent by: Ashkenazi Jews.
Gene: SAMHD1
Mutations: exon1del
Carrier Frequency: 1 of 132
AGS is a disorder that mainly affects the brain, the immune system, and the skin. Within the first year of life, most individuals with AGS experience an episode of severe brain dysfunction (encephalopathy), typically lasting for several months. During this phase, affected babies are usually extremely irritable and do not feed well. They stop developing and begin regressing. Growth of the brain and skull slows down, resulting in a small head size (microcephaly). The encephalopathic phase causes permanent neurological damage that is usually severe. Individuals with AGS have profound intellectual disability, muscle stiffness (spasticity); involuntary tensing of various muscles (dystonia), especially those in the arms; and weak muscle tone (hypotonia) in the torso. Some people with AGS have a skin problem called chilblains. Chilblains are painful, itchy skin lesions that are puffy and red, and usually appear on the fingers, toes, and ears. Vision problems, joint stiffness, and mouth ulcers are other features of this disorder.
Prevalent by: Moroccan, Algerian, and Yemenite Jews.
Gene: ATM
Mutation: p.R35X
Carrier Frequency: Moroccans 1 of 91 Algerians 1 of 56 Yemenites 1 of 104
Ataxia-telangiectasia is a disorder that affects the nervous system, immune system, and other body systems. This disorder is characterized by progressive difficulty with coordinating movements (ataxia) beginning in early childhood. Affected children typically develop difficulty walking, problems with balance and hand coordination, involuntary jerking movements (chorea), muscle twitches (myoclonus), and disturbances in nerve function (neuropathy). The movement problems typically cause people to require wheelchair assistance by adolescence. People with this disorder also have slurred speech and trouble moving their eyes to look side-to-side (oculomotor apraxia). Small clusters of enlarged blood vessels called telangiectases, which occur in the eyes and on the skin’s surface, are also characteristic of this disorder. People with ataxia-telangiectasia often have a weakened immune system, and many develop chronic lung infections. They also have an increased risk of developing cancer, particularly cancer of blood-forming cells (leukemia) and cancer of immune system cells (lymphoma).
Prevalent by: Iranian, Iraqi, Bucharian, Uzbekistan Jews.
Gene: AIRE
Mutation: p.Y85C
Carrier Frequency: Iranians 1 of 27 Iraqis 1 of 44 Bucharians 1 of 63 Uzbekistanis 1 of 153
Autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED) is an inherited autoimmune disease affecting many body parts. In most cases, the signs and symptoms begin in childhood or adolescence. This condition commonly involves three characteristic features: chronic mucocutaneous candidiasis (CMC), hypoparathyroidism, and adrenal gland insufficiency. CMC is a tendency to develop infections of the skin, nails, and the moist lining of body cavities (mucous membranes). These infections recur and can last a long time (chronic). Almost all affected individuals develop infections of the oral cavity (thrush). Hypoparathyroidism can cause a tingling sensation in the lips, fingers, and toes; muscle pain and cramping; weakness; and fatigue. Serious effects of hypoparathyroidism, such as spasms of the voicebox (larynx) leading to breathing problems and seizures, can be life-threatening. Adrenal gland insufficiency leads to symptoms that can include fatigue, muscle weakness, loss of appetite, weight loss, low blood pressure, and changes in skin coloring. Additional endocrine problems include type 1 diabetes, short stature, and infertility. Other early signs and symptoms may include thin enamel on the teeth (enamel hypoplasia) and chronic diarrhea or constipation associated with difficulty in absorbing nutrients from food. Additional features which can lead to permanent organ and tissue damage if left untreated, include stomach irritation (gastritis), liver inflammation (hepatitis), lung irritation (pneumonitis), dry mouth and dry eyes (Sjogren-like syndrome), inflammation of the eyes (keratitis), kidney problems (nephritis), vitamin B12 deficiency, hair loss (alopecia), loss of skin color in blotches (vitiligo), high blood pressure (hypertension), or a small (atrophic) or absent spleen (asplenia).
Prevalent by: Indian Jews.
Gene: TBCD
Mutation: p.A475T
Carrier Frequency: 1 of 10
Prevalent by: Ashkenazi Jews.
Gene: BBS2
Mutations: p.D104A, p.R632P
Carrier Frequency: 1 of 200
Bardet-Biedl syndrome type 2 is a disorder that affects many parts of the body. The signs and symptoms of this condition vary among affected individuals. Vision loss is one of the major features of BBS2. Difficulty with night vision becomes apparent by mid-childhood. Over time, the vision worsens, and most people with BBS become legally blind by adolescence or early adulthood. Other signs and symptoms may include Obesity which typically begins in early childhood, the presence of
extra fingers or toes (polydactyly), intellectual disability, and kidney abnormalities; which can be serious or life-threatening. Dor Yeshorim’s efforts have enabled the detection of two BBS2-causing mutations in the Ashkenazi community.
Prevalent by: Ashkenazi Jews.
Gene: BLM
Mutation: p.Y736Lfs
Carrier Frequency: 1 of 103
Bloom syndrome is a genetic disorder characterized by severe pre- and postnatal growth deficiency, sensitivity to sunlight, insulin resistance, and a high risk for many cancers that occur at an early age. Affected males tend to be infertile, affected females may be fertile but often have early menopause. Individuals with Bloom syndrome have distinct facial features. Other medical complications may include learning disabilities, an increased risk of diabetes, chronic obstructive pulmonary disease (COPD), mild immune system abnormalities leading to recurrent infections of the upper respiratory tract, ears, and lungs during infancy.
Prevalent by: Ashkenazi Jews.
Gene: ASPA
Mutations: p.C693A, p.A854E
Carrier Frequency: 1 of 55
Canavan disease is a type of leukodystrophy characterized by neurodevelopmental delays, and other abnormalities. The phenotypic spectrum ranges from the more severe typical Canavan disease to the less severe atypical Canavan disease. The typical Canavan disease AKA Neonatal/infantile Canavan disease is the most common and most severe form of the condition. Affected infants appear normal for the first few months of life, but by age 3 to 5 months, problems with development become noticeable. These infants usually do not develop motor skills such as turning over, controlling head movement, and sitting without support. Other common features of this condition include weak muscle tone (hypotonia), an unusually large head size (macrocephaly), visual impairment, and irritability. Feeding and swallowing difficulties, seizures, and sleep disturbances may also develop. Most children with typical Canavan disease die in the first two decades.
Prevalent by: Syrian Jews.
Gene: CYP11B1
Mutation: p.A331V
Carrier Frequency: 1 of 59
11-beta-hydroxylase deficiency (not to confuse with 21 hydroxylase deficiency common by Ashkenazim) is a subtype of congenital adrenal hyperplasia that affects the adrenal glands. There are two types of 11-beta-hydroxylase deficiency, the classic form, and the non-classic form. The classic form is the more severe form. Females with the classic form have external genitalia that do not look clearly male or female (atypical genitalia). However, the internal reproductive organs develop normally. Males and females with the classic form of this condition have significant advanced bone ages, and early puberty development such as growth of facial and pubic hair, deepening of the voice, and onset of a growth spurt. The early growth spurt can prevent growth later in adolescence and lead to short stature in adulthood. Untreated boys may have aggressive behavior. A common mutation in the Syria and Moroccan Jews population causes the severe form of the disorder.
Prevalent by: Ashkenazi and Moroccan Jews.
Gene: GDF1
Mutation: p.M364T
Carrier Frequency: Ashkenazim 1 of 45 Moroccans 1 of 75
GDF1-related heart conditions are a group of different heart conditions caused by a mutation in the GDF1 gene. All patients with this condition have conotruncal cardiac defects and heterotaxy, with diagnoses that include TOF, TGA, DORV, TAPVR, pulmonary stenosis or atresia, left superior vena cava to coronary sinus, coronary artery anomalies, right aortic arch, left ventricular outflow tract obstruction, hypoplastic left or right ventricle, and single ventricle. Many of these heart conditions are life-threatening if left untreated, and repair often requires open heart surgery soon after birth.
Prevalent by: All Jewish Groups.
Gene: CFTR
Mutations: p.D1152H, p.W1282X, p.N1303K, c.1717-1G>A, c.3849+10KBC>T, p.F508del *, p.G542X, p.I1234V, c.2751+1insT ,p.W1089X, p.Y1092X, c.3121-1G>A, p.S549R, c.405+1G>A
Carrier Frequency: Ashkenazim 1 of 24 Sephardim – Mizrachim 1 of 52
Cystic fibrosis is characterized by the buildup of thick, sticky mucus that can damage many of the body’s organs. The disorder’s most common signs and symptoms include progressive damage to the respiratory system and chronic digestive system problems. The respiratory issues are caused by abnormal mucus that clog the airways, leading to severe problems with breathing and bacterial infections in the lungs. These infections cause chronic coughing, wheezing, and inflammation. Over time, mucus buildup and infections result in permanent lung damage, including the formation of scar tissue (fibrosis) and cysts in the lungs. The digestive system problems is caused by abnormal mucus that damages the pancreas, impairing its ability to produce insulin and digestive enzymes. Problems with digestion can lead to diarrhea, malnutrition, poor growth, and weight loss. Most men with cystic fibrosis have congenital bilateral absence of the vas deferens (CBAVD). Men with CBAVD are unable to father children (infertile) unless they undergo fertility treatment. The features of the disorder and their severity varies among affected individuals.
Mr. and Mrs. Benzion Friedman, Toronto Ontatrio,
in loving memory of Rochel Bas Yitzchok Yeshaya A”H.
Prevalent by: Moroccan Jews.
Gene: CTNS
Mutation: p.G339R
Carrier Frequency: 1 of 107
Cystinosis is a condition characterized by accumulation of the amino acid cystine within cells. There are three distinct types of cystinosis. The most severe one is called Nephropathic cystinosis which begins in infancy and is causing a particular type of kidney damage called renal Fanconi syndrome. The kidney problems lead to impaired growth and may result in soft, bowed bones (hypophosphatemic rickets), especially in the legs. Untreated children will experience complete kidney failure by about the age of 10. By about the age of 2, cystine crystals may be present in the clear covering of the eye (cornea). The buildup of these crystals in the eye causes pain and an increased sensitivity to light (photophobia). Untreated children will experience complete kidney failure by about the age of 10. Other signs and symptoms that may occur in untreated people, especially after adolescence, include muscle deterioration, blindness, inability to swallow, diabetes, thyroid and nervous system problems, and an inability to father children (infertility) in affected men. A founder mutation in the Moroccan Jewish population is responsible for Nephropathic cystinosis
Prevalent by: Syrian Jews.
Gene: CNGB3
Mutations: p.S156F, p.T383I
Carrier Frequency: 1 of 45
Patients with Achromatopsia have poor visual acuity, photophobia, congenital nystagmus, and colorblindness. In addition, their vision in ordinary light is severely restricted.
Prevalent by: Ashkenazi Jews.
Gene: DLD
Mutation: p.G229C, p.Y35X
Carrier Frequency: 1 of 65
Dihydrolipoamide dehydrogenase (DLD) deficiency is a metabolic disorder that can vary in age of onset, symptoms, and severity. In severe cases the condition is characterized by lactic acidosis shortly after birth; hypotonia and lethargy in infancy; feeding difficulties; seizures; developmental delay, and various other severe health issues. Many infants with the severe type do not survive the first few years of life. Affected individuals who do survive often have delayed growth and severe neurological problems. In milder cases, liver disease is the primary symptom. Liver problems can begin anytime from infancy to adulthood and are usually associated with recurrent vomiting and abdominal pain. Typically, the signs and symptoms of DLD occur in episodes that may be triggered by fever, injury, or other stresses on the body. Affected individuals are usually symptom-free between episodes.
Prevalent by: Ashkenazi Jews.
Gene: IKBKAP
Mutations: c.2507+6T>C, p.R696P
Carrier Frequency: 1 of 26
FD mainly affects the central nervous system, which is responsible for many of the body’s systems, such as blood-pressure stabilization, motor function, sensory nervous system and the ability to swallow and perspire, among other functions. Patients affected by FD are typically recognized by “tearless crying”. FD patients often experience low sensitivity to pain which puts them in danger of fractures, wounds and burns. As the disease progresses, the digestive, respiratory skeletal, and circulatory systems are often affected as well. Familial Dysautonomia is incurable. Dor Yeshorim was actually a part of the successful effort to identify the genetic mutations that cause the disease and the establishment of genetic tests to detect it.
Prevalent by: Ashkenazi Jews.
Gene: ABCC8
Mutations: p.F1387del, c.3989-9G>A
Carrier Frequency: 1 of 58
Congenital hyperinsulinism (CHI) AKA Familial Hyperinsulinism, is a condition that causes individuals to have abnormally high levels of insulin. People with this condition have frequent episodes of low blood glucose (hypoglycemia). The severity of CHI varies widely among affected individuals, even among members of the same family. About 60 percent of infants with this condition experience a hypoglycemic episode within the first month of life. Other affected children develop hypoglycemia by early childhood. In infants and young children, these episodes are characterized by a lack of energy (lethargy), irritability, or difficulty feeding. Repeated episodes of low blood glucose increase the risk for serious complications such as breathing difficulties, seizures, intellectual disability, vision loss, brain damage, and coma.
Please note:
The compatibility results for this disease only covers for the diffuse type of familial hyperinsulinemia, and not for the focal type of this disease.
Prevalent by: Moroccan Jews.
Gene: FANCA
Mutations: c.2172_2173insG, c.4275delT, c.890del4
Carrier Frequency: 1 of 69
Fanconi Anemia Type A is a clinically and genetically heterogeneous disorder that causes genomic instability. Characteristic clinical features include developmental abnormalities in major organ systems, early-onset bone marrow failure and a high predisposition to cancer.
Prevalent by: Ashkenazi Jews.
Gene: FANCC
Mutation: IVS4+4
Carrier Frequency: 1 of 85
Fanconi Anemia manifests itself in severe anemia, congenital defects in the extremities and a tendency towards cancer and leukemia. In some patients the disease causes mental retardation and dwarfism. The treatment entails frequent blood transfusions and patients’ lives are filled with anguish. The only possible way to cure the disease is by transplantation of bone marrow or umbilical cord blood stem cells.
Prevalent by: Ashkenazi Jews.
Gene: G6PC
Mutation: p.R83C
Carrier Frequency: 1 of 68
Patients with this disease lack the ability to break down glycogen (sugar). This results in complicated diabetes and severe digestive disturbances. Glycogen Storage frequently leads to liver tumors and can be fatal.
Prevalent by: Uzbekistani and Bucharian Jews.
Gene: TECPR2
Mutation: c.3416delT
Carrier Frequency: Uzbekistanis – 1 of 22 Bucharis – 1 of 40
Prevalent by: Ashkenazi Jews.
Gene: VPS11
Mutation: p.C846G
Carrier Frequency: 1 of 120
Prevalent by: Ashkenazi Jews.
Gene: C11orf73
Mutation: p.V54L
Carrier Frequency: 1 of 179
Hypomyelinating leukodystrophy-13 is a rare autosomal recessive neurodegenerative disorder. The disease is characterized by infantile onset of delayed psychomotor development, failure to thrive, abnormal low muscle tone (axial hypotonia) muscle tightness (spasticity), global developmental delay, and postnatal progressive microcephaly. Other variable deficits include visual impairment due to optic atrophy, seizures., and nystagmus. Most patients are unable to achieve independent walking or speech. Some patients may experience cardiac failure during acute illness that could lead to sudden death.
Prevalent by: Iranian Jews.
Gene: GNE
Mutation: p.M712T
Carrier Frequency: 1 of 16
GNE myopathy is a condition that primarily affects skeletal muscles. This disorder causes muscle weakness that appears in late adolescence or early adulthood and worsens over time. The first sign of GNE myopathy is often difficulty lifting the front part of the foot (foot drop). As the disorder progresses, weakness also develops in the muscles of the upper legs, hips, shoulders, and hands. Weakness in leg muscles makes walking increasingly difficult, and most people with GNE myopathy require wheelchair assistance within 20 years after the signs and symptoms of the disorder appear. A single mutation in the GNE gene is a common cause of GNE myopathy in Iranian and Syrian Jews.
Prevalent by: Caucasus Jews.
Gene: MED17
Mutation: p.L371P
Carrier Frequency: 1 of 20
Infantile Cerebral and Cerebellar Atrophy causes postnatal progressive microcephaly and severe developmental retardation associated. At 4-9 weeks of age patients develop swallowing difficulties which lead to jitteriness, poor visual fixation, truncal arching and seizures.
Prevalent by: Ashkenazi Jews.
Gene: TMEM216
Mutation: p.R12L
Carrier Frequency: 1 of 95
JBTS is an autosomal recessive disorder characterized by a distinctive brain malformation visible on MRI examination, low muscle tone, abnormal breathing pattern, and developmental delay. Additional features may include abnormal eye movement, abnormal gait, mental retardation, vision problems, extra fingers and/ or toes, and kidney disease. DY played a significant role in this gene discovery after several families sought DY’s assistance.
Prevalent by: Syrian Jews.
Gene: NDUFS4
Mutation: p.D119H
Carrier Frequency: 1 of 119
Prevalent by: Ashkenazi Jews.
Gene: BCKDHB
Mutation: p.R183P
Carrier Frequency: 1 of 266
Maple syrup urine disease is an inherited disorder in which the body is unable to process certain protein building blocks (amino acids) properly. The condition gets its name from the distinctive sweet odor of affected infants urine. MSUD is categorized as classic (severe), intermediate, or intermittent. Neonates with classic MSUD are born asymptomatic but without treatment they develop symptoms soon after birth. The disease is characterized by poor feeding, vomiting, lack of energy (lethargy), abnormal movements, and delayed development. If untreated, maple syrup urine disease can lead to seizures, coma, and death. A common mutation in the BCKDHB causes the classic form of MSUD type 1B in the Ashkenazi Jewish community
Prevalent by: Ethiopian and Yemenite Jews.
Gene: TCTN2
Mutation: c.1506-2A>G
Carrier Frequency: Ethiopians – 1 of 40 Yemenis – 1 of 62
Prevalent by: Lybian Jews.
Gene: MLC1
Mutation: p.G59E
Carrier Frequency: 1 of 74
Megalencephalic Leukoencephalopathy with subcortical cysts is a leukodystrophy characterized by early-onset macrocephaly and delayed-onset neurologic deterioration, including cerebellar ataxia, spasticity, epilepsy, and mild cognitive decline.
Prevalent by: Bucharian Jews.
Gene: CRADD
Mutation: c.52_59del
Carrier Frequency: 1 of 30
Prevalent by: Syrian and Yemenite Jews.
Gene: ARSA
Mutation: p.P377L
Carrier Frequency: Syrians 1 of 54 Yemenis 1 of 63
In the late infantile form of Metachromatic Leukodystrophy, onset usually occurs in the 2nd year of life and leads to death before 5 years. Clinical features include motor difficulties, rigidity, mental deterioration and convulsions.
Prevalent by: Iraqi Jews.
Gene: OPA3
Mutation: c.143-1G>C
Carrier Frequency: 1 of 30
Methylglutaconic Aciduria Type 3 is a neuro-ophthalmologic syndrome consisting of early-onset bilateral optic atrophy and later-onset spasticity, extrapyramidal dysfunction and cognitive deficit.
Prevalent by: Caucasus Jews.
Gene: NDUFS6
Mutation: p.C115Y
Carrier Frequency: 1 of 20
Prevalent by: Iranian Jews.
Gene: TYMP
Mutation: p.G145R
Carrier Frequency: 1 of 73
Prevalent by: Ashkenazi Jews.
Gene: MCOLN1
Mutation: IVS3-2A>G, c.-1015_789del
Carrier Frequency: 1 of 93
Mucolipidosis is a severe degenerative disease of the brain that hampers neurological and motor development and causes blindness. The symptoms appear before age one. Some patients reach adulthood, but never develop beyond the level of a 12-18 month old.
Prevalent by: Ashkenazi Jews.
Gene: NEB
Mutation: p.R2478_D2512del
Carrier Frequency: 1 of 110
NM is an autosomal recessive neuromuscular disorder characterized by muscle weakness, especially in the face, neck and limbs, low muscle tone, and depressed or absent tendon reflexes. The disease usually presents in infancy, and muscle biopsies reveal the presence of nemaline bodies. DY found the Ashkenazic Jewish mutation after several families sought assistance.
Prevalent by: Ashkenazi Jews.
Gene: SMPD1
Mutations: p.L304P, p.F333Sfs, p.R498L
Carrier Frequency: 1 of 227
A fatal metabolic dysfunction that results from the body’s inability to break down certain substances. Eventually, these substances accumulate in the cells, causing progressive damage. The disease manifest in various neurological symptoms that, after a few months, arrest the proper development of the child. Sick children rarely reach the age of five. Their lives are short, devastating, suffering-filled years for both child and family. There are no known cures or treatments.
Prevalent by: Ashkenazi Jews.
Gene: PKHD1
Mutation: p.A1254Gfs
Carrier Frequency: 1 of 108
Prevalent by: Ashkenazi Jews.
Gene: VRK1
Mutations: p.R358X
Carrier Frequency: 1 of 256
Prevalent by: Moroccan Jews.
Gene: SEPSECS
Mutations: p.A239T, p.Y334C
Carrier Frequency: 1 of 68
Pontocerebellar hypoplasia is a group of conditions that affect the development of the brain and can lead to microcephaly which is usually not apparent at birth but becomes noticeable in infancy and early childhood. Babies with PCH2 cannot grasp objects, sit or walk, have problems with swallowing and cannot communicate. Many also suffer from impaired vision, stiffness and seizures. The severity of different forms of PCH varies, but many children do not survive infancy or childhood. There is no known cure.
Prevalent by: Iranian and Moroccan Jews.
Gene: VPS53
Mutation: c.1556+5G>A, c.2084A>G
Carrier Frequency: Iranians 1 of 49 Moroccans 1 of 96
Prevalent by: Syrian Jews.
Gene: ESCO2
Mutation: c.1674-2A>G
Carrier Frequency: 1 of 198
Prevalent by: Bucharian Jews.
Gene: MTHFR
Mutation: c.474A>T
Carrier Frequency: 1 of 26
Methylenetetrahydrofolate Reductase is a common inborn error of folate metabolism. The phenotypic spectrum ranges from severe neurologic deterioration and early death to asymptomatic adults.
Prevalent by: Ashkenazi Jews.
Gene: SLC1A4
Mutation: p.E256K
Carrier Frequency: 1 of 122
Prevalent by: Ashkenazi and Moroccan Jews.
Gene: DHCR7
Mutation: c.964-1G>C
Carrier Frequency: Ashkenazim 1 of 43 Moroccans 1 of 114
Prevalent by: All Jewish Groups.
Gene: SMN1
Mutation: exon7del
Carrier Frequency: Sephardim 1 of 40 Ashkenazim 1 of 60.
Prevalent by: Ashkenazi, Moroccan and Uzbekistani Jews.
Gene: HEXA
Mutations: c.1277ins4, c.1421+1G>C, p.G269S, p.R170Q*, p.R170W*, p.F304/305del, IVS5-2A>G
Carrier Frequency: Ashkenazim 1 of 25, Moroccans 1 of 108, Uzbekistanis it’s 1 of 241.
A fatal metabolic dysfunction that results from the body’s inability to break down certain substances. Eventually, these substances accumulate in the cells, causing progressive damage. The disease manifest in various neurological symptoms that, after a few months, arrest the proper development of the child. Sick children rarely reach the age of five. Their lives are short, devastating, suffering-filled years for both child and family. There are no known cures or treatments. The genes for this disease is very prevalent. The Tay Sachs genetic mutation is present in one of every 25 Jews of Ashkenazi descent and one of every 100 Jews of North African descent.
Mr. & Mrs. Shlomo Yehuda Rechnitz, Los Angeles California.
Prevalent by: Syrian Jews.
Gene: COL6A2
Mutation: p.R468X
Carrier Frequency: 1 of 22
Prevalent by: Ashkenazi Jews.
Gene: EPG5
Mutations: p.Q336R
Carrier Frequency: 1 of 230
Research and development on this disease was sponsored by the generosity of


לע”נ מרת גיטל ב”ר פנחס ז”ל נפטרה כ”ב אלול תשפ”ד לפ”ק
Prevalent by: Ashkenazi Jews.
Gene: FKTN
Mutation: c.1167insA
Carrier Frequency: 1 of 60
WWS is an autosomal recessive disorder characterized by muscular weakness present at birth, along with severe brain and eye abnormalities. The surface of the brain is abnormally smooth (lissencephaly), the cerebellum and brainstem are underdeveloped, and most infants have water on the brain (hydrocephalus). Congenital cataracts and retina malformations are usually also present. Severe developmental delay ensues, and most affected children die in early childhood. Upon encountering several incidences of this disease in Ashkenazic Jewish families, DY determined that this disease occurs in the Ashkenazi community at a higher frequency than initially believed.
Prevalent by: Ashkenazi Jews.
Gene: DDX11
Mutation: c.1763-1G>C
Carrier Frequency: 1 of 64
Eitan Hillel Z”L ben Mishael v’Chanah Esther ‘שיחי in blessed memory of their beloved son.
Prevalent by: Iranian Jews.
Gene: LIPA
Mutation: p.G87V
Carrier Frequency: 1 of 103
Dor Yeshorim has updated the diseases tested for on the Standard Panel as of July 1, 2022. To view the complete list of diseases tested before July 1, 2022, Please contact the Dor Yeshorim office.
Please note:
If you have a concern regarding a specific disease like family history, please contact our research department with more information to ensure that you are covered for the genetic mutation that was found in your family.
Highly Recommended
Intended to reduce the risk of recessive genetic inherited hearing loss.
Thanks to new testing technology, the Hearing Loss Panel has been
updated and is now available for all new DY participants.
Prevalent by: All Jewish groups.
Gene: GJB2
Mutations: c.167delT, c.35delG, p.L90P, c.51del12insA
Carrier Frequency: Ashkenazim – 1 in 20 Moroccans and Syrians – 1 in 150
Prevalent by: Ashkenazi Jews.
Gene: GJB6
Mutation: 309kb-del
Carrier Frequency: 1 in 141
Prevalent by: Ashkenazi Jews.
Gene: LOXHD1
Mutation: p.R1572
Carrier Frequency: 1 in 140.
Prevalent by: Ashkenazi Jews.
Gene: MPZL2
Mutation: c.72delA
Carrier Frequency: 1 in 132
Prevalent by: Iranian, Ashkenazi, and Moroccan Jews.
Gene: MYO15A
Mutations: p.Y2684H, p.G3287G, p.D2823N, p.V1400M
Carrier Frequency: Iranians – 1 of 37 Ashkenazim – 1 of 73 Moroccans – 1 of 110 Iraqis – 1 of 179
Prevalent by: Syrian and Ashkenazi Jews.
Gene: OTOF
Mutations: p.V1778F, c.5193_1G>A, c.4227+1G>T
Carrier Frequency: Syrians – 1 in 20 Ashkenazim – 1 in 101
Prevalent by: Ashkenazi Jews.
Gene: OTOG
Mutation: p.Q834X
Carrier Frequency: 1 in 446
Prevalent by: Ashkenazi Jews.
Gene: OTOGL
Mutation: p.L316FfsX5
Carrier Frequency: 1 in 100
Prevalent by: Ashkenazi Jews.
Gene: PEX26
Mutation: p.F51L
Carrier Frequency: 1 in 554
Prevalent by: Ashkenazi Jews.
Gene: SPATA5L1
Mutations: p.G176V, p.I466M
Carrier Frequency: 1 in 100
Prevalent by:All Jewish groups.
Gene: STRC
Mutations: exon19del, p.R1391G, p.C527X, p.F1614V
Carrier Frequency: 1 in 47
Prevalent by: Moroccan, and Syrian Jews.
Gene: TMC1
Mutations: p.S647P, p.R604X
Carrier Frequency: Moroccans – 1 in 28 Syrians – 1 in 178
Prevalent by: Ashkenazi Jews.
Gene: TMPRSS3
Mutation: p.R109W
Carrier Frequency: 1 in 150
Prevalent by: Ashkenazi Jews.
Gene: SLC26A4
Mutations: p.L117F, p.V570I
Carrier Frequency: 1 in 76
Prevalent by: Ashkenazi Jews.
Gene: LARS2
Mutation: p.E60D
Carrier Frequency: 1 in 173
Prevalent by: Ashkenazi Jews.
Gene: PCDH15
Mutation: p.R245X
Carrier Frequency: 1 in 129
Prevalent by: Moroccan and Algerian Jews.
Gene: MYO7A
Mutation: p.A826T
Carrier Frequency: 1 in 72
Prevalent by: Ashkenazi Jews.
Gene: USH1C
Mutation: p.R80P
Carrier Frequency: 1 in 231
Prevalent by: Bucharian Jews.
Gene: USH1G
Mutation: p.D458V
Carrier Frequency: 1 in 213
Prevalent by: Iraqi and Iranian Jews.
Gene: USH2A
Mutation: p.C239ins4
Carrier Frequency: Iraqi – 1 in 62. Iranian – 1 in 139
Prevalent by: Ashkenazi Jews.
Gene: ADGRV1 (GPR98)
Mutation: c.14973_2A>G
Carrier Frequency: 1 in 325
Prevalent by: Ashkenazi Jews.
Gene: CLRN1
Mutation: p.N48K
Carrier Frequency: 1 in 112
* By special request.
Please note:
If you have a specific concern regarding hearing loss like a family history, please contact our research department with more information
to ensure that you are covered for the genetic mutation that causes the hearing loss in your family