Description:
BLOOM SYNDROME; BLM
RECQ PROTEIN-LIKE 3; RECQL3
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Repository
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NIGMS Human Genetic Cell Repository
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| Subcollection |
Heritable Diseases
Hereditary Cancers
Chromosome Abnormalities |
| Class |
Repair Defective and Chromosomal Instability Syndromes |
| Class |
Syndromes with Increased Chromosome Breakage |
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Cell Type
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Fibroblast
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Transformant
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Untransformed
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Race
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White
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Ethnicity
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ASHKENAZI
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Relation to Proband
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proband
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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 |
4.25 |
| Passage Frozen |
14 |
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| IDENTIFICATION OF SPECIES OF ORIGIN |
Species of Origin Confirmed by Nucleoside Phosphorylase, Glucose-6-Phosphate Dehydrogenase, and Lactate Dehydrogenase Isoenzyme Electrophoresis |
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| superoxide dismutase |
Nicotera et al (Cancer Res 49:5239-5243 1989) reported elevated levels of superoxide dismutase activity for extracts of this cell culture developed from a Bloom syndrome patient. EC Number: 1.15.1.1 |
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| URACIL DNA GLYCOSYLASE |
Seal et al (Proc Natl Acad Sci USA 85:2339-2343,1988) reported that monoclonal antibody, 40.10.09, to normal uracil DNA glycosylase did not react with the uracil DNA glycosylase from this Bloom syndrome culture. |
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| Gene |
RECQL3 |
| Chromosomal Location |
15q26.1 |
| Allelic Variant 1 |
604610.0001; BLOOM SYNDROME |
| Identified Mutation |
6-BP DEL/7-BP INS; In 4 ostensibly unrelated persons of Jewish ancestry, Ellis et al. [Cell 83: 655 (1995)] found homozygosity for a 6-bp deletion/7-bp insertion at nucleotide 2281 of the BLM cDNA. Deletion of ATCTGA and insertion of TAGATTC caused the insertion of the novel codons for LDSR after amino acid 736, and after these codons there was a stop codon. Ellis et al. [Cell 83: 655 (1995)] concluded that a person carrying this deletion/insertion mutation was a founder of the Ashkenazi-Jewish population, and that nearly all Ashkenazi Jews with Bloom syndrome inherited the mutation identical by descent from this common ancestor. |
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| Gene |
RECQL3 |
| Chromosomal Location |
15q26.1 |
| Allelic Variant 2 |
604610.0001; BLOOM SYNDROME |
| Identified Mutation |
6-BP DEL/7-BP INS; In 4 ostensibly unrelated persons of Jewish ancestry, Ellis et al. [Cell 83: 655 (1995)] found homozygosity for a 6-bp deletion/7-bp insertion at nucleotide 2281 of the BLM cDNA. Deletion of ATCTGA and insertion of TAGATTC caused the insertion of the novel codons for LDSR after amino acid 736, and after these codons there was a stop codon. Ellis et al. [Cell 83: 655 (1995)] concluded that a person carrying this deletion/insertion mutation was a founder of the Ashkenazi-Jewish population, and that nearly all Ashkenazi Jews with Bloom syndrome inherited the mutation identical by descent from this common ancestor. |
| Remarks |
B.S. Registry #47; Ashkenazi; increased chromosome breakage/SCE; line HG1251; homozygous for a 6-bp deletion/7-bp insertion at nucleotide 2281 of the open reading frame of RECQL3; results in a frameshift and a stop codon at 2292 |
| Trikka D, Fang Z, Renwick A, Jones SH, Chakraborty R, Kimmel M, Nelson DL, Complex SNP-based haplotypes in three human helicases: implications for cancer association studies. Genome Res12(4):627-39 2002 |
| PubMed ID: 11932247 |
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| Lu X, Lane DP, Differential induction of transcriptionally active p53 following UV or ionizing radiation: defects in chromosome instability syndromes? Cell75:765-78 1993 |
| PubMed ID: 8242748 |
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| Nicotera TM, Notaro J, Notaro S, Schumer J, Sandberg AA, Elevated superoxide dismutase in Bloom's syndrome: a genetic condition of oxidative stress. Cancer Res49:5239-43 1989 |
| PubMed ID: 2766291 |
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| Seal G, Brech K, Karp SJ, Cool BL, Sirover MA, Immunological lesions in human uracil DNA glycosylase: association with Bloom syndrome. Proc Natl Acad Sci U S A85:2339-43 1988 |
| PubMed ID: 3353381 |
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| Lechner JF, Kaighn ME, Jetten AM, Groden J, German J, Bloom's syndrome cells have an abnormal serum growth response. Exp Cell Res145:381-8 1983 |
| PubMed ID: 6602713 |
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| German J, Bloom D, Passarge E, Bloom's syndrome. V. Surveillance for cancer in affected families. Clin Genet12:162-8 1977 |
| PubMed ID: 908169 |
| Passage Frozen |
14 |
| Split Ratio |
1:2 |
| Temperature |
37 C |
| Percent CO2 |
5% |
| Percent O2 |
3% |
| Medium |
Eagles Minimum Essential Medium with Earle's salts:Dulbecco's modified MEM with 2mM L-glutamine or equivalent |
| Serum |
15% fetal bovine serum Not inactivated |
| Substrate |
Gelatin |
| Supplement |
- |
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