NA04602
DNA from Fibroblast
Description:
DYSTROPHIA MYOTONICA 1; DM1
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Repository
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NIGMS Human Genetic Cell Repository
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| Subcollection |
Heritable Diseases
Muscular Dystrophies |
| Class |
Disorders with Trinucleotide Expansions |
| Quantity |
10 µg |
| Quantitation Method |
Please see our FAQ |
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Biopsy Source
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Unspecified
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Cell Type
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Fibroblast
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Tissue Type
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Skin
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Transformant
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Untransformed
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Sample Source
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DNA from Fibroblast
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Race
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White
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Country of Origin
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USA
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Family Member
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3
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Relation to Proband
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daughter
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Confirmation
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Clinical summary/Case history
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Species
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Homo sapiens
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Common Name
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Human
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Remarks
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| PDL at Freeze |
5.99 |
| Passage Frozen |
4 |
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| Gene |
DMPK |
| Chromosomal Location |
19q13.2-q13.3 |
| Allelic Variant 1 |
605377.0001; MYOTONIC DYSTROPHY |
| Identified Mutation |
(CTG)n EXPANSION; The consistent genetic defect associated with myotonic dystrophy is an amplified trinucleotide CTG repeat in the 3-prime untranslated region of the serine-threonine kinase gene DMK on 19q. Unaffected individuals have between 5 and 27 copies. DM patients who are minimally affected have at least 50 repeats, while more severely affected patients have expansion of the repeat-containing segment up to several kilobases. |
| Remarks |
Clinically affected; diagnosed shortly after birth; delivered prematurely (breech) and weighed 5 pounds 9 ounces; vigorous resuscitation required and on respirator for approximately three months after birth; hypotonia at birth; scoliosis developed at approximately 4 months of age and required body brace; by age 2 there was delay in communication skills, inability to sit without support, delayed fine motor adaptive skills, difficulty maintaining head control, delayed milestones; high-arched palate; thin, long face with moderate facial weakness; inability to completely close eyelids; thin, elongated head; hypertelorism; little facial movement; bilateral nonobligatory tonic neck responses; reduced muscle tone and reduced muscle bulk in all extremities; clinical and electrical myotonia; donor subject has one normal CTG repeat allele and one allele with a CTG repeat size of approximately 1600 (minor species at 2400) in the DMPK gene; affected mother is GM04608; affected sister is GM04601; maternal grandfather is GM06076; see GM06077 lymphocyte and GM24559 induced pluripotent stem cell. |
| De Serres-Bérard T, Jauvin D, Puymirat J, Chahine M, Generation of induced pluripotent stem cell lines from pediatric patients with congenital myotonic dystrophy (CBRCULi012-A and CBRCULi013-A) and age-matched controls (CBRCULi010-A and CBRCULi011-A) Stem cell research72:103234 2023 |
| PubMed ID: 37871474 |
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| Neault N, O'Reilly S, Baig AT, Plaza-Diaz J, Azimi M, Farooq F, Baird SD, MacKenzie A, High-throughput kinome-RNAi screen identifies protein kinase R activator (PACT) as a novel genetic modifier of CUG foci integrity in myotonic dystrophy type 1 (DM1) PloS one16:e0256276 2020 |
| PubMed ID: 34520479 |
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| Zarouchlioti C, Sanchez-Pintado B, Hafford Tear NJ, Klein P, Liskova P, Dulla K, Semo M, Vugler AA, Muthusamy K, Dudakova L, Levis HJ, Skalicka P, Hysi P, Cheetham ME, Tuft SJ, Adamson P, Hardcastle AJ, Davidson AE, Antisense Therapy for a Common Corneal Dystrophy Ameliorates TCF4 Repeat Expansion-Mediated Toxicity American journal of human genetics102:528-539 2018 |
| PubMed ID: 29526280 |
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| Zhang W, Wang Y, Dong S, Choudhury R, Jin Y, Wang Z, Treatment of type 1 myotonic dystrophy by engineering site-specific RNA endonucleases that target (CUG)(n) repeats Molecular therapy : the journal of the American Society of Gene Therapy22:312-320 2013 |
| PubMed ID: 24196578 |
| NCBI GTR |
160900 MYOTONIC DYSTROPHY 1; DM1 |
| OMIM |
160900 MYOTONIC DYSTROPHY 1; DM1 |
| Omim Description |
DM PROTEIN KINASE, INCLUDED |
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DYSTROPHIA MYOTONICA; DM |
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DYSTROPHIA MYOTONICA; DMPK |
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MYOTONIC DYSTROPHY |
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MYOTONIC DYSTROPHY PROTEIN KINASE, INCLUDED; MDPK, INCLUDED |
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MYOTONIN-PROTEIN KINASE, INCLUDED |
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STEINERT DISEASEDM-KINASE, INCLUDED; DMK, INCLUDED |
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