rs776289036

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM1PM2BP6

The NM_000231.3(SGCG):c.497G>A(p.Arg166Gln) variant causes a missense change. The variant allele was found at a frequency of 0.000112 in 1,612,636 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00012 ( 1 hom. )

Consequence

SGCG
NM_000231.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 6.81

Variant links:

Genes affected

SGCG (HGNC:10809): (sarcoglycan gamma) This gene encodes gamma-sarcoglycan, one of several sarcolemmal transmembrane glycoproteins that interact with dystrophin. The dystrophin-glycoprotein complex (DGC) spans the sarcolemma and is comprised of dystrophin, syntrophin, alpha- and beta-dystroglycans and sarcoglycans. The DGC provides a structural link between the subsarcolemmal cytoskeleton and the extracellular matrix of muscle cells. Defects in the encoded protein can lead to early onset autosomal recessive muscular dystrophy, in particular limb-girdle muscular dystrophy, type 2C (LGMD2C). [provided by RefSeq, Oct 2008]

SGCG links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM1

In a chain Gamma-sarcoglycan (size 290) in uniprot entity SGCG_HUMAN there are 38 pathogenic changes around while only 8 benign (83%) in NM_000231.3

PM2

Very rare variant in population databases, with high coverage;

BP6

Variant 13-23279470-G-A is Benign according to our data. Variant chr13-23279470-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 530807.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SGCG	NM_000231.3 linkuse as main transcript	c.497G>A	p.Arg166Gln	missense_variant	5/8	ENST00000218867.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SGCG	ENST00000218867.4 linkuse as main transcript	c.497G>A	p.Arg166Gln	missense_variant	5/8	1	NM_000231.3	P1

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152094

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:

0.00135

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000211

AC:

AN:

251050

Hom.:

AF XY:

0.000169

AC XY:

AN XY:

135696

show subpopulations

Gnomad AFR exome

AF:

0.0000616

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00229

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000116

AC:

169

AN:

1460542

Hom.:

Cov.:

AF XY:

0.0000977

AC XY:

AN XY:

726584

show subpopulations

Gnomad4 AFR exome

AF:

0.000120

Gnomad4 AMR exome

AF:

0.0000895

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000909

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000107

Gnomad4 OTH exome

AF:

0.0000829

GnomAD4 genome

AF:

0.0000789

AC:

AN:

152094

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74286

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00135

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000772

Hom.:

Bravo

AF:

0.000162

ExAC

AF:

0.000181

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Autosomal recessive limb-girdle muscular dystrophy type 2C

Uncertain:1Benign:2

Uncertain significance, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Aug 18, 2020	- -
Likely benign, no assertion criteria provided	clinical testing	Natera, Inc.	Aug 11, 2020	- -
Likely benign, criteria provided, single submitter	clinical testing	Invitae	Jan 30, 2024	- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.093

BayesDel_addAF

Pathogenic

0.17

BayesDel_noAF

Pathogenic

0.46

Cadd

Pathogenic

Dann

Pathogenic

1.0

DEOGEN2

Pathogenic

0.92

Eigen

Pathogenic

0.74

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.93

M_CAP

Uncertain

0.13

MetaRNN

Uncertain

0.44

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

3.0

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.55

PROVEAN

Uncertain

-2.8

REVEL

Pathogenic

0.79

Sift

Uncertain

0.0080

Sift4G

Uncertain

0.012

Polyphen

1.0

Vest4

0.79

MVP

0.99

MPC

0.44

ClinPred

0.32

GERP RS

5.4

Varity_R

0.55

gMVP

0.62

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