8-11548067-GCT-ACG

Variant names:

• chr8-11548067-GCT-ACG
• NM_001715.3:c.211_213delGCTinsACG
• BLK p.Ala71Thr

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_001715.3(BLK):​c.211_213delGCTinsACG​(p.Ala71Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: BLK NM_001715.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.49
• Publications: 0 publications found

Genes affected

BLK (HGNC:1057): (BLK proto-oncogene, Src family tyrosine kinase) This gene encodes a nonreceptor tyrosine-kinase of the src family of proto-oncogenes that are typically involved in cell proliferation and differentiation. The protein has a role in B-cell receptor signaling and B-cell development. The protein also stimulates insulin synthesis and secretion in response to glucose and enhances the expression of several pancreatic beta-cell transcription factors. [provided by RefSeq, Aug 2010]

BLK Gene-Disease associations (from GenCC):

• maturity-onset diabetes of the young

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• systemic lupus erythematosus

  Inheritance: Unknown Classification: SUPPORTIVE Submitted by: Orphanet
• maturity-onset diabetes of the young type 11

  Inheritance: AD, Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
• monogenic diabetes

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001715.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BLK	NM_001715.3	MANE Select	c.211_213delGCTinsACG	p.Ala71Thr	missense	N/A	NP_001706.2
	BLK	NM_001330465.2		c.-3_-1delGCTinsACG		5_prime_UTR	Exon 3 of 12	NP_001317394.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BLK	ENST00000259089.9	TSL:1 MANE Select	c.211_213delGCTinsACG	p.Ala71Thr	missense	N/A	ENSP00000259089.4	P51451
	BLK	ENST00000855155.1		c.211_213delGCTinsACG	p.Ala71Thr	missense	N/A	ENSP00000525214.1
	BLK	ENST00000855156.1		c.211_213delGCTinsACG	p.Ala71Thr	missense	N/A	ENSP00000525215.1

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		2.5

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr8-11405576;