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NM_000057.4(BLM):c.3069G>T (p.Leu1023Phe) AND Hereditary cancer-predisposing syndrome

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Oct 29, 2021
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:
RCV002444299.2

Allele description [Variation Report for NM_000057.4(BLM):c.3069G>T (p.Leu1023Phe)]

NM_000057.4(BLM):c.3069G>T (p.Leu1023Phe)

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.3069G>T (p.Leu1023Phe)
HGVS:
  • NC_000015.10:g.90794216G>T
  • NG_007272.1:g.81845G>T
  • NM_000057.4:c.3069G>TMANE SELECT
  • NM_001287246.2:c.3069G>T
  • NM_001287247.2:c.3069G>T
  • NM_001287248.2:c.1944G>T
  • NP_000048.1:p.Leu1023Phe
  • NP_000048.1:p.Leu1023Phe
  • NP_001274175.1:p.Leu1023Phe
  • NP_001274176.1:p.Leu1023Phe
  • NP_001274177.1:p.Leu648Phe
  • LRG_20t1:c.3069G>T
  • LRG_20:g.81845G>T
  • LRG_20p1:p.Leu1023Phe
  • NC_000015.9:g.91337446G>T
  • NM_000057.2:c.3069G>T
Protein change:
L1023F
Molecular consequence:
  • NM_000057.4:c.3069G>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001287246.2:c.3069G>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001287247.2:c.3069G>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001287248.2:c.1944G>T - 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

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV002753018Ambry Genetics
criteria provided, single submitter

(Ambry Variant Classification Scheme 2023)		Uncertain significance
(Oct 29, 2021) 		germlineclinical testing

Citation Link

Help

Summary from all submissions

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

Details of each submission

From Ambry Genetics, SCV002753018.2

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

Description

The p.L1023F variant (also known as c.3069G>T), located in coding exon 15 of the BLM gene, results from a G to T substitution at nucleotide position 3069. The leucine at codon 1023 is replaced by phenylalanine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be deleterious 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: May 1, 2024