1-16015742-A-C

Variant names:

• chr1-16015742-A-C
• NM_014424.5:c.351T>G
• HSPB7 p.Thr117Thr

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_014424.5(HSPB7):​c.351T>G​(p.Thr117Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: HSPB7 NM_014424.5 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -8.44
• 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: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.04).
• BP7: Synonymous conserved (PhyloP=-8.44 with no splicing effect.

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.351T>G	p.Thr117Thr	synonymous	Exon 3 of 3	NP_055239.1	Q9UBY9-1
	HSPB7	NM_001349682.2		c.576T>G	p.Thr192Thr	synonymous	Exon 4 of 4	NP_001336611.1	Q8N241
	HSPB7	NM_001349689.2		c.366T>G	p.Thr122Thr	synonymous	Exon 3 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.351T>G	p.Thr117Thr	synonymous	Exon 3 of 3	ENSP00000310111.9	Q9UBY9-1
	HSPB7	ENST00000487046.1	TSL:1	c.366T>G	p.Thr122Thr	synonymous	Exon 3 of 3	ENSP00000419477.1	Q9UBY9-2
	HSPB7	ENST00000406363.2	TSL:1	c.363T>G	p.Thr121Thr	synonymous	Exon 3 of 3	ENSP00000385472.2	Q68DG0

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 6.96e-7 AC: 1 AN: 1437180 Hom.: 0 Cov.: 51 AF XY: 0.00 AC XY: 0 AN XY: 711056

African (AFR) AF: 0.00 AC: 0 AN: 33078

American (AMR) AF: 0.00 AC: 0 AN: 43784

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25128

East Asian (EAS) AF: 0.0000255 AC: 1 AN: 39176

South Asian (SAS) AF: 0.00 AC: 0 AN: 84302

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 50688

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5572

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1096176

Other (OTH) AF: 0.00 AC: 0 AN: 59276

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
CADD	Benign	0.0050
DANN	Benign	0.74
PhyloP100		-8.4
Mutation Taster		=99/1	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		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

hg19: chr1-16342237;