8-50502773-T-C

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_018967.5(SNTG1):​c.364-5T>C variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00039 in 1,608,428 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0020 ( 2 hom., cov: 33)
Exomes 𝑓: 0.00022 ( 0 hom. )

Consequence

SNTG1
NM_018967.5 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0003856
2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 1.60
Variant links:
Genes affected
SNTG1 (HGNC:13740): (syntrophin gamma 1) The protein encoded by this gene is a member of the syntrophin family. Syntrophins are cytoplasmic peripheral membrane proteins that typically contain 2 pleckstrin homology (PH) domains, a PDZ domain that bisects the first PH domain, and a C-terminal domain that mediates dystrophin binding. This family member plays a role in mediating gamma-enolase trafficking to the plasma membrane and in enhancing its neurotrophic activity. Mutations in this gene are associated with idiopathic scoliosis. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Mar 2016]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.76).
BP6
Variant 8-50502773-T-C is Benign according to our data. Variant chr8-50502773-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 3352405.Status of the report is no_assertion_criteria_provided, 0 stars.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SNTG1NM_018967.5 linkuse as main transcriptc.364-5T>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000642720.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SNTG1ENST00000642720.2 linkuse as main transcriptc.364-5T>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant NM_018967.5 P1Q9NSN8-1

Frequencies

GnomAD3 genomes
AF:
0.00205
AC:
312
AN:
152218
Hom.:
2
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:
0.00
Gnomad OTH
AF:
0.00335
GnomAD3 exomes
AF:
0.000735
AC:
183
AN:
248850
Hom.:
1
AF XY:
0.000527
AC XY:
71
AN XY:
134700
show subpopulations
Gnomad AFR exome
AF:
0.00889
Gnomad AMR exome
AF:
0.000880
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:
0.0000267
Gnomad OTH exome
AF:
0.00116
GnomAD4 exome
AF:
0.000217
AC:
316
AN:
1456092
Hom.:
0
Cov.:
29
AF XY:
0.000195
AC XY:
141
AN XY:
724730
show subpopulations
Gnomad4 AFR exome
AF:
0.00625
Gnomad4 AMR exome
AF:
0.000834
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:
0.0000180
Gnomad4 OTH exome
AF:
0.000732
GnomAD4 genome
AF:
0.00204
AC:
311
AN:
152336
Hom.:
2
Cov.:
33
AF XY:
0.00184
AC XY:
137
AN XY:
74492
show subpopulations
Gnomad4 AFR
AF:
0.00697
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:
0.00
Gnomad4 OTH
AF:
0.00331
Alfa
AF:
0.000949
Hom.:
1
Bravo
AF:
0.00252
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

SNTG1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesApr 27, 2024This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.76
CADD
Benign
11
DANN
Benign
0.76

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00039
dbscSNV1_RF
Benign
0.024
SpliceAI score (max)
0.040
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: rs183468464; hg19: chr8-51415333; API