chr8-123082757-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_145647.4(TBC1D31):​c.280C>T​(p.Arg94Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000105 in 1,613,202 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

TBC1D31
NM_145647.4 missense

Scores

3
11
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.38
Variant links:
Genes affected
TBC1D31 (HGNC:30888): (TBC1 domain family member 31) Located in centrosome. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TBC1D31NM_145647.4 linkuse as main transcriptc.280C>T p.Arg94Cys missense_variant 3/22 ENST00000287380.6 NP_663622.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TBC1D31ENST00000287380.6 linkuse as main transcriptc.280C>T p.Arg94Cys missense_variant 3/221 NM_145647.4 ENSP00000287380 P1Q96DN5-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152198
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
GnomAD4 exome
AF:
0.0000103
AC:
15
AN:
1461004
Hom.:
0
Cov.:
30
AF XY:
0.0000110
AC XY:
8
AN XY:
726858
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000108
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152198
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74364
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
Bravo
AF:
0.0000264

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 GeneticsDec 07, 2022The c.280C>T (p.R94C) alteration is located in exon 3 (coding exon 3) of the TBC1D31 gene. This alteration results from a C to T substitution at nucleotide position 280, causing the arginine (R) at amino acid position 94 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
0.090
BayesDel_addAF
Uncertain
0.053
T
BayesDel_noAF
Benign
-0.16
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.076
T;.;T
Eigen
Uncertain
0.34
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Uncertain
0.77
D
LIST_S2
Pathogenic
0.98
D;D;D
M_CAP
Uncertain
0.11
D
MetaRNN
Uncertain
0.48
T;T;T
MetaSVM
Uncertain
-0.17
T
MutationAssessor
Uncertain
2.9
M;M;.
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Benign
0.25
T
PROVEAN
Uncertain
-4.4
D;D;D
REVEL
Uncertain
0.36
Sift
Uncertain
0.0020
D;D;D
Sift4G
Pathogenic
0.0010
D;D;D
Polyphen
1.0
D;.;.
Vest4
0.44
MutPred
0.55
Loss of solvent accessibility (P = 8e-04);Loss of solvent accessibility (P = 8e-04);.;
MVP
0.71
MPC
0.33
ClinPred
0.98
D
GERP RS
4.8
Varity_R
0.27
gMVP
0.40

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: rs375186187; hg19: chr8-124094997; COSMIC: COSV54866374; API