10-116679656-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_025015.3(HSPA12A):c.1133C>G(p.Ala378Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,894 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: HSPA12A NM_025015.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 9.60

Genes affected

HSPA12A (HGNC:19022): (heat shock protein family A (Hsp70) member 12A) Predicted to enable ATP binding activity. Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HSPA12A	NM_025015.3	c.1133C>G	p.Ala378Gly	missense_variant	10/12	ENST00000369209.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HSPA12A	ENST00000369209.8	c.1133C>G	p.Ala378Gly	missense_variant	10/12	1	NM_025015.3	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000401 AC: 1 AN: 249588 Hom.: 0 AF XY: 0.00000738 AC XY: 1 AN XY: 135410

Gnomad AFR exome AF: 0.00

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: 0.00000883

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461894 Hom.: 0 Cov.: 32 AF XY: 0.00000275 AC XY: 2 AN XY: 727248

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

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

Ambry Genetics

Oct 20, 2023

The c.1133C>G (p.A378G) alteration is located in exon 10 (coding exon 10) of the HSPA12A gene. This alteration results from a C to G substitution at nucleotide position 1133, causing the alanine (A) at amino acid position 378 to be replaced by a glycine (G). 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	Uncertain	0.39
BayesDel_addAF	Uncertain	0.092	D
BayesDel_noAF	Benign	-0.11
Cadd	Uncertain	25
Dann	Uncertain	1.0
DEOGEN2	Benign	0.12	T;T
Eigen	Uncertain	0.38
Eigen_PC	Uncertain	0.52
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D;D
M_CAP	Benign	0.026	D
MetaRNN	Uncertain	0.51	D;D
MetaSVM	Benign	-0.98	T
MutationAssessor	Uncertain	2.6	M;.
MutationTaster	Benign	1.0	D
PrimateAI	Pathogenic	0.80	T
PROVEAN	Benign	0.12	N;.
REVEL	Benign	0.25
Sift	Benign	0.33	T;.
Sift4G	Benign	0.35	T;.
Polyphen		0.16	B;.
Vest4		0.71
MutPred		0.56		Loss of stability (P = 0.0059);.;
MVP		0.26
MPC		0.44
ClinPred		0.75	D
GERP RS		6.0
Varity_R		0.27
gMVP		0.72

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.20		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.20		Position offset: 0

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

Publications

LitVar

Other links and lift over

dbSNP: rs1554878297; hg19: chr10-118439167;