ClinVar Miner

Submissions for variant NM_000057.4(BLM):c.893C>T (p.Thr298Met)

gnomAD frequency: 0.00346  dbSNP: rs28384991
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Total submissions: 15
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Eurofins Ntd Llc (ga) RCV000078062 SCV000109900 benign not specified 2013-03-01 criteria provided, single submitter clinical testing
Preventiongenetics, part of Exact Sciences RCV000078062 SCV000301749 benign not specified criteria provided, single submitter clinical testing
Illumina Laboratory Services, Illumina RCV000381515 SCV000394412 benign Bloom syndrome 2018-01-13 criteria provided, single submitter clinical testing This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease.
Invitae RCV000381515 SCV000555819 benign Bloom syndrome 2024-02-01 criteria provided, single submitter clinical testing
Ambry Genetics RCV000568229 SCV000672867 benign Hereditary cancer-predisposing syndrome 2016-08-18 criteria provided, single submitter clinical testing This alteration is classified as benign based on a combination of the following: population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV000589956 SCV000694483 benign not provided 2016-08-31 criteria provided, single submitter clinical testing Variant summary: The BLM c.893C>T (p.Thr298Met) variant involves the alteration of a non-conserved nucleotide. 3/4 in silico tools predict a benign outcome for this variant (SNPs&GO not captured due to low reliability index). This variant was found in 1165/122686 control chromosomes (43 homozygotes), predominantly observed in the East Asian subpopulation at a frequency of 0.0901317 (780/8654). This frequency is about 25 times the estimated maximal expected allele frequency of a pathogenic BLM variant (0.0035355), suggesting this is likely a benign polymorphism found primarily in the populations of East Asian origin. Additionally, the variant has been reported at the same frequency in control and affected populations, further evidence that this variant is benign (Sakiyama_IJC_2005). One clinical diagnostic laboratory/reputable database has classified this variant as benign. Taken together and based on the high allele frequency in the general population, this variant was classified as benign.
GeneDx RCV000589956 SCV001852096 benign not provided 2015-03-03 criteria provided, single submitter clinical testing This variant is associated with the following publications: (PMID: 24728327, 27876123)
Quest Diagnostics Nichols Institute San Juan Capistrano RCV000078062 SCV002047164 benign not specified 2021-05-21 criteria provided, single submitter clinical testing
Sema4, Sema4 RCV000568229 SCV002533175 benign Hereditary cancer-predisposing syndrome 2020-11-06 criteria provided, single submitter curation
KCCC/NGS Laboratory, Kuwait Cancer Control Center RCV000381515 SCV004016393 benign Bloom syndrome 2023-07-07 criteria provided, single submitter clinical testing
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories RCV000381515 SCV004564079 benign Bloom syndrome 2023-11-16 criteria provided, single submitter clinical testing
ITMI RCV000078062 SCV000084392 not provided not specified 2013-09-19 no assertion provided reference population
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC) RCV000589956 SCV001798985 likely benign not provided no assertion criteria provided clinical testing
Genome Diagnostics Laboratory, Amsterdam University Medical Center RCV000078062 SCV001808960 benign not specified no assertion criteria provided clinical testing
Natera, Inc. RCV000381515 SCV002089985 benign Bloom syndrome 2017-04-25 no assertion criteria provided clinical testing

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