NM_014424.5:c.149A>T

Variant names:

• chr1-16017815-T-A
• rs892849133
• NM_014424.5:c.149A>T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_014424.5(HSPB7):​c.149A>T​(p.Asp50Val) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D50N) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 34)
• Consequence: HSPB7 NM_014424.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.64
• Publications: 0 publications found

Genes affected

HSPB7 (HGNC:5249): (heat shock protein family B (small) member 7) This gene encodes a small heat shock family B member that can heterodimerize with similar heat shock proteins. Defects in this gene are associated with advanced heart failure. In addition, the encoded protein may be a tumor suppressor in the p53 pathway, with defects in this gene being associated with renal cell carcinoma. [provided by RefSeq, Mar 2017]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014424.5. 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
	HSPB7	NM_014424.5	MANE Select	c.149A>T	p.Asp50Val	missense	Exon 1 of 3	NP_055239.1	Q9UBY9-1
	HSPB7	NM_001349682.2		c.374A>T	p.Asp125Val	missense	Exon 2 of 4	NP_001336611.1	Q8N241
	HSPB7	NM_001349689.2		c.149A>T	p.Asp50Val	missense	Exon 1 of 3	NP_001336618.1	Q9UBY9-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HSPB7	ENST00000311890.14	TSL:1 MANE Select	c.149A>T	p.Asp50Val	missense	Exon 1 of 3	ENSP00000310111.9	Q9UBY9-1
	HSPB7	ENST00000487046.1	TSL:1	c.149A>T	p.Asp50Val	missense	Exon 1 of 3	ENSP00000419477.1	Q9UBY9-2
	HSPB7	ENST00000406363.2	TSL:1	c.149A>T	p.Asp50Val	missense	Exon 1 of 3	ENSP00000385472.2	Q68DG0

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 34

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.29
PhyloP100		6.6
PromoterAI		-0.043	Neutral
Varity_R		0.18
gMVP		0.48
Mutation Taster		=48/52	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.16		Details are displayed if max score is > 0.2

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

dbSNP: rs892849133; hg19: chr1-16344310;