Variant 16-69260219-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_006750.4(SNTB2):c.964G>A(p.Gly322Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000502 in 1,614,174 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

SNTB2
NM_006750.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.73

Variant links:

Genes affected

SNTB2 (HGNC:11169): (syntrophin beta 2) Dystrophin is a large, rod-like cytoskeletal protein found at the inner surface of muscle fibers. Dystrophin is missing in Duchenne Muscular Dystrophy patients and is present in reduced amounts in Becker Muscular Dystrophy patients. The protein encoded by this gene is a peripheral membrane protein found associated with dystrophin and dystrophin-related proteins. This gene is a member of the syntrophin gene family, which contains at least two other structurally-related genes. [provided by RefSeq, Jul 2008]

SNTB2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.056025177).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SNTB2	NM_006750.4 linkuse as main transcript	c.964G>A	p.Gly322Ser	missense_variant	3/7	ENST00000336278.9
SNTB2	NR_172088.1 linkuse as main transcript	n.1053G>A		non_coding_transcript_exon_variant	4/8
SNTB2	NR_172089.1 linkuse as main transcript	n.954G>A		non_coding_transcript_exon_variant	3/7
SNTB2	NR_172090.1 linkuse as main transcript	n.798-9924G>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SNTB2	ENST00000336278.9 linkuse as main transcript	c.964G>A	p.Gly322Ser	missense_variant	3/7	1	NM_006750.4	P1	Q13425-1
SNTB2	ENST00000467311.5 linkuse as main transcript	c.795-9924G>A		intron_variant, NMD_transcript_variant		1			Q13425-2
SNTB2	ENST00000525632.5 linkuse as main transcript	c.478+92G>A		intron_variant		3
SNTB2	ENST00000528525.1 linkuse as main transcript	n.368G>A		non_coding_transcript_exon_variant	3/4	3

Frequencies

GnomAD3 genomes

AF:

0.000237

AC:

AN:

152166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000869

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:

0.0000955

AC:

AN:

251426

Hom.:

AF XY:

0.000103

AC XY:

AN XY:

135894

show subpopulations

Gnomad AFR exome

AF:

0.000738

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:

0.000106

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000308

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.0000371

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.000478

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.0000216

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.000236

AC:

AN:

152284

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74466

show subpopulations

Gnomad4 AFR

AF:

0.000866

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

Alfa

AF:

0.0000333

Hom.:

Bravo

AF:

0.000257

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000157

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

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 submitter

clinical testing

Ambry Genetics

Apr 28, 2022

The c.964G>A (p.G322S) alteration is located in exon 3 (coding exon 3) of the SNTB2 gene. This alteration results from a G to A substitution at nucleotide position 964, causing the glycine (G) at amino acid position 322 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

0.071

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.53

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.37

Eigen

Benign

0.043

Eigen_PC

Benign

0.21

FATHMM_MKL

Uncertain

0.86

LIST_S2

Benign

0.72

M_CAP

Benign

0.0044

MetaRNN

Benign

0.056

MetaSVM

Benign

-0.99

MutationAssessor

Benign

1.1

MutationTaster

Benign

0.73

PrimateAI

Benign

0.47

PROVEAN

Benign

-1.4

REVEL

Benign

0.12

Sift

Benign

0.034

Sift4G

Benign

0.066

Polyphen

0.74

Vest4

0.14

MVP

0.64

MPC

0.37

ClinPred

0.073

GERP RS

5.1

Varity_R

0.087

gMVP

0.41

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.060

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