Genetic Variant STAC2:p.His180Arg (chr17-39216857-T-C) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

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

The NM_198993.5(STAC2):c.539A>G(p.His180Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000374 in 1,604,248 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: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

STAC2
NM_198993.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.20

Variant links:

Genes affected

STAC2 (HGNC:23990): (SH3 and cysteine rich domain 2) This gene encodes a protein containing an SH3 domain and a zinc finger domain. The encoded protein has been shown to regulate calcium channel inactivation in a human cell line. Reduced expression of this gene has been observed in human heart failure. [provided by RefSeq, May 2017]

STAC2 links:

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=0.41078132).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STAC2	NM_198993.5 link	c.539A>G	p.His180Arg	missense_variant	Exon 4 of 11	ENST00000333461.6	NP_945344.1	Q6ZMT1-1D0IN09

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STAC2	ENST00000333461.6 link	c.539A>G	p.His180Arg	missense_variant	Exon 4 of 11	1	NM_198993.5	ENSP00000327509.5		Q6ZMT1-1
STAC2	ENST00000584501.1 link	n.337A>G		non_coding_transcript_exon_variant	Exon 4 of 11	1		ENSP00000463299.1		J3QKZ0

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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

GnomAD4 exome

AF:

0.00000207

AC:

AN:

1452078

Hom.:

Cov.:

AF XY:

0.00000139

AC XY:

AN XY:

721334

show subpopulations

Gnomad4 AFR exome

AF:

0.0000300

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:

9.03e-7

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152170

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74346

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.000131

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:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 26, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.539A>G (p.H180R) alteration is located in exon 4 (coding exon 4) of the STAC2 gene. This alteration results from a A to G substitution at nucleotide position 539, causing the histidine (H) at amino acid position 180 to be replaced by an arginine (R). 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

0.099

BayesDel_addAF

Uncertain

0.095

BayesDel_noAF

Benign

-0.10

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.26

Eigen

Uncertain

0.52

Eigen_PC

Uncertain

0.51

FATHMM_MKL

Benign

0.75

LIST_S2

Benign

0.73

M_CAP

Uncertain

0.087

MetaRNN

Benign

0.41

MetaSVM

Uncertain

0.25

MutationAssessor

Uncertain

2.4

PrimateAI

Uncertain

0.56

PROVEAN

Uncertain

-2.7

REVEL

Uncertain

0.39

Sift

Benign

0.14

Sift4G

Benign

0.13

Polyphen

0.99

Vest4

0.33

MutPred

0.15

Loss of loop (P = 0.0288);

MVP

0.96

MPC

0.34

ClinPred

0.96

GERP RS

5.3

Varity_R

0.31

gMVP

0.27

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

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over