NM_006597.6:c.1455A>T

Variant names:

• chr11-123058699-T-A
• rs1064585
• NM_006597.6:c.1455A>T

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_006597.6(HSPA8):​c.1455A>T​(p.Ile485Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,502 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: HSPA8 NM_006597.6 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.582
• Publications: 0 publications found

Genes affected

HSPA8 (HGNC:5241): (heat shock protein family A (Hsp70) member 8) This gene encodes a member of the heat shock protein 70 family, which contains both heat-inducible and constitutively expressed members. This protein belongs to the latter group, which are also referred to as heat-shock cognate proteins. It functions as a chaperone, and binds to nascent polypeptides to facilitate correct folding. It also functions as an ATPase in the disassembly of clathrin-coated vesicles during transport of membrane components through the cell. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2011]

SNORD14D (HGNC:30353): (small nucleolar RNA, C/D box 14D)

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.46).
• BP7: Synonymous conserved (PhyloP=0.582 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006597.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HSPA8	NM_006597.6	MANE Select	c.1455A>T	p.Ile485Ile	synonymous	Exon 7 of 9	NP_006588.1
	HSPA8	NM_153201.4		c.1387+68A>T		intron	N/A	NP_694881.1
	SNORD14D	NR_001454.2		n.*210A>T		downstream_gene	N/A

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HSPA8	ENST00000534624.6	TSL:1 MANE Select	c.1455A>T	p.Ile485Ile	synonymous	Exon 7 of 9	ENSP00000432083.1
	HSPA8	ENST00000227378.7	TSL:1	c.1455A>T	p.Ile485Ile	synonymous	Exon 6 of 8	ENSP00000227378.3
	HSPA8	ENST00000524552.5	TSL:1	c.228A>T	p.Ile76Ile	synonymous	Exon 2 of 4	ENSP00000435908.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461502 Hom.: 0 Cov.: 34 AF XY: 0.00000275 AC XY: 2 AN XY: 727094

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000299 AC: 1 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86250

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53346

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5732

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111766

Other (OTH) AF: 0.00 AC: 0 AN: 60378

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.0385499), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.46
CADD	Benign	5.3
DANN	Benign	0.74
PhyloP100		0.58
PromoterAI		0.018	Neutral

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

Other links and lift over

dbSNP: rs1064585; hg19: chr11-122929407;