Genetic Variant SMR3A:p.Ala15Gly (chr4-70362159-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_012390.4(SMR3A):c.44C>G(p.Ala15Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,611,612 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

SMR3A
NM_012390.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.07

Variant links:

Genes affected

SMR3A (HGNC:19216): (submaxillary gland androgen regulated protein 3A) Predicted to enable endopeptidase inhibitor activity. Predicted to be involved in regulation of sensory perception of pain. Predicted to be located in extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

SMR3A links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.1037862).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SMR3A	NM_012390.4 link	c.44C>G	p.Ala15Gly	missense_variant	Exon 2 of 3	ENST00000226460.5	NP_036522.3	Q99954

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SMR3A	ENST00000226460.5 link	c.44C>G	p.Ala15Gly	missense_variant	Exon 2 of 3	1	NM_012390.4	ENSP00000226460.4		Q99954

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151786

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000295

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000343

AC:

AN:

1459826

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726262

show subpopulations

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:

0.00000450

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151786

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74116

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000295

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000151

EpiCase

AF:

0.0000546

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 12, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.44C>G (p.A15G) alteration is located in exon 2 (coding exon 1) of the SMR3A gene. This alteration results from a C to G substitution at nucleotide position 44, causing the alanine (A) at amino acid position 15 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

Benign

0.17

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.69

CADD

Benign

4.6

DANN

Benign

0.31

DEOGEN2

Benign

0.0043

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.0095

LIST_S2

Benign

0.24

M_CAP

Benign

0.0038

MetaRNN

Benign

0.10

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.95

PROVEAN

Benign

-0.52

REVEL

Benign

0.0060

Sift

Benign

0.044

Sift4G

Benign

0.48

Polyphen

0.0010

Vest4

0.13

MutPred

0.21

Loss of stability (P = 0.0279);

MVP

0.14

MPC

0.061

ClinPred

0.037

GERP RS

-0.62

Varity_R

0.040

gMVP

0.046

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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