chr8-123093711-A-T

Variant summary

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

The NM_145647.4(TBC1D31):​c.640A>T​(p.Ser214Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000839 in 1,609,064 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000091 ( 0 hom. )

Consequence

TBC1D31
NM_145647.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.626
Variant links:
Genes affected
TBC1D31 (HGNC:30888): (TBC1 domain family member 31) Located in centrosome. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

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=0.109888405).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TBC1D31NM_145647.4 linkuse as main transcriptc.640A>T p.Ser214Cys missense_variant 5/22 ENST00000287380.6 NP_663622.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TBC1D31ENST00000287380.6 linkuse as main transcriptc.640A>T p.Ser214Cys missense_variant 5/221 NM_145647.4 ENSP00000287380 P1Q96DN5-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152164
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:
0.0000199
AC:
5
AN:
251108
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135712
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000290
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:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000913
AC:
133
AN:
1456900
Hom.:
0
Cov.:
29
AF XY:
0.0000842
AC XY:
61
AN XY:
724848
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:
0.000114
Gnomad4 OTH exome
AF:
0.0000999
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152164
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74344
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:
0.0000496
Hom.:
0
Bravo
AF:
0.0000302
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000247
AC:
3

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 submitterclinical testingAmbry GeneticsJan 19, 2024The c.640A>T (p.S214C) alteration is located in exon 5 (coding exon 5) of the TBC1D31 gene. This alteration results from a A to T substitution at nucleotide position 640, causing the serine (S) at amino acid position 214 to be replaced by a cysteine (C). 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
0.074
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.28
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0095
T;.;T;.;T
Eigen
Benign
-0.41
Eigen_PC
Benign
-0.46
FATHMM_MKL
Benign
0.11
N
LIST_S2
Uncertain
0.89
D;D;D;D;D
M_CAP
Benign
0.073
D
MetaRNN
Benign
0.11
T;T;T;T;T
MetaSVM
Benign
-0.72
T
MutationAssessor
Benign
1.2
L;L;.;.;.
MutationTaster
Benign
1.0
N;N;N;N;N;N
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-2.3
N;N;N;N;N
REVEL
Benign
0.11
Sift
Benign
0.050
D;D;D;D;D
Sift4G
Uncertain
0.045
D;D;D;D;D
Polyphen
0.83
P;.;.;.;.
Vest4
0.34
MVP
0.60
MPC
0.19
ClinPred
0.13
T
GERP RS
1.6
Varity_R
0.053
gMVP
0.21

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs148998681; hg19: chr8-124105951; API