2-1083616-A-G

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 2P and 13B. PM2BP4_StrongBP6_Very_StrongBP7

The NM_018968.4(SNTG2):ā€‹c.171A>Gā€‹(p.Gln57=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000395 in 1,613,772 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.0020 ( 1 hom., cov: 33)
Exomes š‘“: 0.00023 ( 0 hom. )

Consequence

SNTG2
NM_018968.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 1.08
Variant links:
Genes affected
SNTG2 (HGNC:13741): (syntrophin gamma 2) This gene encodes a protein belonging to the syntrophin family. Syntrophins are cytoplasmic peripheral membrane proteins that bind to components of mechanosenstive sodium channels and the extreme carboxy-terminal domain of dystrophin and dystrophin-related proteins. The PDZ domain of this protein product interacts with a protein component of a mechanosensitive sodium channel that affects channel gating. Absence or reduction of this protein product has been associated with Duchenne muscular dystrophy. There is evidence of alternative splicing yet the full-length nature of these variants has not been described. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.59).
BP6
Variant 2-1083616-A-G is Benign according to our data. Variant chr2-1083616-A-G is described in ClinVar as [Benign]. Clinvar id is 713266.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.08 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SNTG2NM_018968.4 linkuse as main transcriptc.171A>G p.Gln57= synonymous_variant 2/17 ENST00000308624.10 NP_061841.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SNTG2ENST00000308624.10 linkuse as main transcriptc.171A>G p.Gln57= synonymous_variant 2/171 NM_018968.4 ENSP00000311837 P1Q9NY99-1
SNTG2ENST00000407292.1 linkuse as main transcriptc.171A>G p.Gln57= synonymous_variant 2/111 ENSP00000385020 Q9NY99-2
SNTG2ENST00000450962.5 linkuse as main transcriptc.171A>G p.Gln57= synonymous_variant, NMD_transcript_variant 2/85 ENSP00000401997
SNTG2ENST00000452177.5 linkuse as main transcriptc.171A>G p.Gln57= synonymous_variant, NMD_transcript_variant 2/82 ENSP00000412249

Frequencies

GnomAD3 genomes
AF:
0.00202
AC:
307
AN:
152202
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00702
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000916
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:
0.0000147
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000558
AC:
139
AN:
249000
Hom.:
0
AF XY:
0.000422
AC XY:
57
AN XY:
135068
show subpopulations
Gnomad AFR exome
AF:
0.00672
Gnomad AMR exome
AF:
0.000666
Gnomad ASJ exome
AF:
0.0000994
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000532
Gnomad OTH exome
AF:
0.000662
GnomAD4 exome
AF:
0.000226
AC:
330
AN:
1461452
Hom.:
0
Cov.:
34
AF XY:
0.000195
AC XY:
142
AN XY:
727024
show subpopulations
Gnomad4 AFR exome
AF:
0.00612
Gnomad4 AMR exome
AF:
0.000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000441
Gnomad4 OTH exome
AF:
0.000696
GnomAD4 genome
AF:
0.00202
AC:
308
AN:
152320
Hom.:
1
Cov.:
33
AF XY:
0.00201
AC XY:
150
AN XY:
74488
show subpopulations
Gnomad4 AFR
AF:
0.00702
Gnomad4 AMR
AF:
0.000915
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.00124
Hom.:
0
Bravo
AF:
0.00246
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJun 13, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.59
CADD
Benign
0.36
DANN
Benign
0.15

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.

Other links and lift over

dbSNP: rs189503863; hg19: chr2-1079302; API