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chr16-69260144-A-G

Variant summary

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

The NM_006750.4(SNTB2):ā€‹c.889A>Gā€‹(p.Thr297Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,613,898 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000055 ( 0 hom. )

Consequence

SNTB2
NM_006750.4 missense

Scores

2
17

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.86
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]

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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=0.16276973).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SNTB2NM_006750.4 linkuse as main transcriptc.889A>G p.Thr297Ala missense_variant 3/7 ENST00000336278.9
SNTB2NR_172088.1 linkuse as main transcriptn.978A>G non_coding_transcript_exon_variant 4/8
SNTB2NR_172089.1 linkuse as main transcriptn.879A>G non_coding_transcript_exon_variant 3/7
SNTB2NR_172090.1 linkuse as main transcriptn.798-9999A>G intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SNTB2ENST00000336278.9 linkuse as main transcriptc.889A>G p.Thr297Ala missense_variant 3/71 NM_006750.4 P1Q13425-1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152012
Hom.:
0
Cov.:
32
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251468
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135912
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000547
AC:
8
AN:
1461886
Hom.:
0
Cov.:
33
AF XY:
0.00000550
AC XY:
4
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.00
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:
0.00
Gnomad4 NFE exome
AF:
0.00000629
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152012
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74248
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000658
Hom.:
0
Bravo
AF:
0.0000113

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.060
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.48
CADD
Benign
19
DANN
Benign
0.83
DEOGEN2
Benign
0.25
T
Eigen
Benign
-0.29
Eigen_PC
Benign
-0.048
FATHMM_MKL
Uncertain
0.78
D
LIST_S2
Benign
0.60
T
M_CAP
Benign
0.0030
T
MetaRNN
Benign
0.16
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.36
N
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-0.13
N
REVEL
Benign
0.063
Sift
Benign
0.85
T
Sift4G
Benign
0.55
T
Polyphen
0.014
B
Vest4
0.23
MVP
0.60
MPC
0.35
ClinPred
0.17
T
GERP RS
5.6
Varity_R
0.048
gMVP
0.50

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: rs1268427602; hg19: chr16-69294047; API