chr21-14381349-T-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_006948.5(HSPA13):​c.220A>T​(p.Thr74Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000046 in 152,204 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)

Consequence

HSPA13
NM_006948.5 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.83
Variant links:
Genes affected
HSPA13 (HGNC:11375): (heat shock protein family A (Hsp70) member 13) The protein encoded by this gene is a member of the heat shock protein 70 family and is found associated with microsomes. Members of this protein family play a role in the processing of cytosolic and secretory proteins, as well as in the removal of denatured or incorrectly-folded proteins. The encoded protein contains an ATPase domain and has been shown to associate with a ubiquitin-like protein. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.26661587).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
HSPA13NM_006948.5 linkuse as main transcriptc.220A>T p.Thr74Ser missense_variant 2/5 ENST00000285667.4 NP_008879.3 P48723A0A140VK72

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
HSPA13ENST00000285667.4 linkuse as main transcriptc.220A>T p.Thr74Ser missense_variant 2/51 NM_006948.5 ENSP00000285667.3 P48723
HSPA13ENST00000478035.1 linkuse as main transcriptn.403A>T non_coding_transcript_exon_variant 2/33

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152204
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251422
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135888
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Cov.:
31
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152204
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74354
show subpopulations
Gnomad4 AFR
AF:
0.000169
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000302
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMay 08, 2023The c.220A>T (p.T74S) alteration is located in exon 2 (coding exon 2) of the HSPA13 gene. This alteration results from a A to T substitution at nucleotide position 220, causing the threonine (T) at amino acid position 74 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.15
T
Eigen
Benign
-0.028
Eigen_PC
Benign
0.038
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.73
T
M_CAP
Benign
0.058
D
MetaRNN
Benign
0.27
T
MetaSVM
Benign
-0.77
T
MutationAssessor
Benign
1.5
L
PrimateAI
Uncertain
0.56
T
PROVEAN
Benign
-2.3
N
REVEL
Benign
0.23
Sift
Benign
0.069
T
Sift4G
Benign
0.084
T
Polyphen
0.36
B
Vest4
0.45
MutPred
0.55
Gain of disorder (P = 0.0614);
MVP
0.40
MPC
0.90
ClinPred
0.64
D
GERP RS
4.5
Varity_R
0.20
gMVP
0.58

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs762074437; hg19: chr21-15753670; API