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NM_000057.4(BLM):c.448A>G (p.Thr150Ala) AND Hereditary cancer-predisposing syndrome

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
May 24, 2023
Review status:
1 star out of maximum of 4 stars
criteria provided, single submitter
Somatic classification
of clinical impact:
None
Review status:
(0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided
Somatic classification
of oncogenicity:
None
Review status:
(0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided
Record status:
current
Accession:
RCV001022563.3

Allele description [Variation Report for NM_000057.4(BLM):c.448A>G (p.Thr150Ala)]

NM_000057.4(BLM):c.448A>G (p.Thr150Ala)

Gene:
BLM:BLM RecQ like helicase [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
15q26.1
Genomic location:
Preferred name:
NM_000057.4(BLM):c.448A>G (p.Thr150Ala)
HGVS:
  • NC_000015.10:g.90749716A>G
  • NG_007272.1:g.37345A>G
  • NM_000057.4:c.448A>GMANE SELECT
  • NM_001287246.2:c.448A>G
  • NM_001287247.2:c.448A>G
  • NM_001287248.2:c.-844A>G
  • NP_000048.1:p.Thr150Ala
  • NP_001274175.1:p.Thr150Ala
  • NP_001274176.1:p.Thr150Ala
  • LRG_20t1:c.448A>G
  • LRG_20:g.37345A>G
  • NC_000015.9:g.91292946A>G
  • NM_000057.2:c.448A>G
  • NM_000057.3:c.448A>G
Protein change:
T150A
Links:
dbSNP: rs1567035400
NCBI 1000 Genomes Browser:
rs1567035400
Molecular consequence:
  • NM_001287248.2:c.-844A>G - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
  • NM_000057.4:c.448A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001287246.2:c.448A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001287247.2:c.448A>G - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Hereditary cancer-predisposing syndrome
Synonyms:
Neoplastic Syndromes, Hereditary; Tumor predisposition; Cancer predisposition; See all synonyms [MedGen]
Identifiers:
MONDO: MONDO:0015356; MeSH: D009386; MedGen: C0027672

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Assertion and evidence details

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Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV001184317Ambry Genetics
criteria provided, single submitter

(Ambry General Variant Classification Scheme_2022)		Uncertain significance
(May 24, 2023) 		germlineclinical testing

Citation Link

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Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical testing

Details of each submission

From Ambry Genetics, SCV001184317.4

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testingnot provided

Description

The p.T150A variant (also known as c.448A>G), located in coding exon 2 of the BLM gene, results from an A to G substitution at nucleotide position 448. The threonine at codon 150 is replaced by alanine, an amino acid with similar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: Mar 5, 2024