rs146520007

chr13-31151101-A-G

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4 BS2

The NM_006644.4(HSPH1):c.754T>C(p.Tyr252His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000653 in 1,613,592 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.00038 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00068 (1 hom.)
• Consequence: HSPH1 NM_006644.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.95

Genes affected

HSPH1 (HGNC:16969): (heat shock protein family H (Hsp110) member 1) This gene encodes a member of the heat shock protein 70 family of proteins. The encoded protein functions as a nucleotide exchange factor for the molecular chaperone heat shock cognate 71 kDa protein (Hsc70). In addition, this protein plays a distinct but related role as a holdase that inhibits the aggregation of misfolded proteins, including the cystic fibrosis transmembrane conductance regulator (CFTR) protein. Elevated expression of this protein has been observed in numerous human cancers. [provided by RefSeq, Mar 2017]

ACMG classification

Verdict is Likely_benign. Variant got -5 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.33889192).
• BS2: High AC in GnomAd at 58 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HSPH1	NM_006644.4	c.754T>C	p.Tyr252His	missense_variant	7/18	ENST00000320027.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HSPH1	ENST00000320027.10	c.754T>C	p.Tyr252His	missense_variant	7/18	1	NM_006644.4	P1

Frequencies

GnomAD3 genomes AF: 0.000381 AC: 58 AN: 152192 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000193

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000786

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000544

Gnomad OTH AF: 0.000478

GnomAD3 exomes AF: 0.000382 AC: 96 AN: 251032 Hom.: 1 AF XY: 0.000376 AC XY: 51 AN XY: 135690

Gnomad AFR exome AF: 0.000123

Gnomad AMR exome AF: 0.000261

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000654

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000696

Gnomad OTH exome AF: 0.000654

GnomAD4 exome AF: 0.000682 AC: 996 AN: 1461400 Hom.: 1 Cov.: 31 AF XY: 0.000649 AC XY: 472 AN XY: 727004

Gnomad4 AFR exome AF: 0.000120

Gnomad4 AMR exome AF: 0.000313

Gnomad4 ASJ exome AF: 0.0000383

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000696

Gnomad4 FIN exome AF: 0.0000562

Gnomad4 NFE exome AF: 0.000844

Gnomad4 OTH exome AF: 0.000497

GnomAD4 genome AF: 0.000381 AC: 58 AN: 152192 Hom.: 0 Cov.: 32 AF XY: 0.000471 AC XY: 35 AN XY: 74346

Gnomad4 AFR AF: 0.000193

Gnomad4 AMR AF: 0.000786

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000544

Gnomad4 OTH AF: 0.000478

Alfa AF: 0.000584 Hom.: 0

Bravo AF: 0.000468

TwinsUK AF: 0.00108 AC: 4

ALSPAC AF: 0.000519 AC: 2

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000581 AC: 5

ExAC AF: 0.000346 AC: 42

EpiCase AF: 0.000491

EpiControl AF: 0.000771

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Aug 25, 2015

The p.Tyr252His variant in HSPH1 has not been previously associated with disease , but has been identified in 0.1% (35/66586) of European chromosomes by the Exom e Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs14652000 7). Computational prediction tools and conservation analysis suggest that the p. Tyr252His variant may impact the protein, though this information is not predict ive enough to determine pathogenicity. In summary, the clinical significance of the p.Tyr252His variant is uncertain. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.32
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.17
Cadd	Pathogenic	27
Dann	Uncertain	1.0
DEOGEN2	Benign	0.11	T;T;.;.
Eigen	Uncertain	0.52
Eigen_PC	Uncertain	0.51
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D;D;D;D
M_CAP	Benign	0.081	D
MetaRNN	Benign	0.34	T;T;T;T
MetaSVM	Benign	-0.49	T
MutationTaster	Benign	1.0	D;D;D;D;D
PrimateAI	Uncertain	0.78	T
REVEL	Uncertain	0.34
Sift4G	Pathogenic	0.0	D;D;D;D
Polyphen		1.0	.;D;.;D
Vest4		0.70
MVP		0.66
MPC		1.4
ClinPred		0.36	T
GERP RS		5.7
Varity_R		0.91
gMVP		0.48

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Publications

LitVar

Other links and lift over

dbSNP: rs146520007; hg19: chr13-31725238;