Variant 19-36125681-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The ENST00000221855.8(TBCB):c.634C>T(p.Arg212Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000101 in 1,580,140 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000091 ( 0 hom. )

Consequence

TBCB
ENST00000221855.8 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.37

Variant links:

Genes affected

TBCB (HGNC:1989): (tubulin folding cofactor B) Predicted to be involved in cell differentiation and nervous system development. Located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

TBCB links:

TBCB (HGNC:):

TBCB links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.888

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TBCB	NM_001281.3 linkuse as main transcript	c.634C>T	p.Arg212Cys	missense_variant	6/6	ENST00000221855.8	NP_001272.2	Q99426-1
TBCB	NM_001300971.3 linkuse as main transcript	c.481C>T	p.Arg161Cys	missense_variant	6/6		NP_001287900.1	Q99426-2
TBCB	NR_155756.2 linkuse as main transcript	n.1683C>T		non_coding_transcript_exon_variant	6/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TBCB	ENST00000221855.8 linkuse as main transcript	c.634C>T	p.Arg212Cys	missense_variant	6/6	1	NM_001281.3	ENSP00000221855.3		Q99426-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152222

Hom.:

Cov.:

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:

0.000192

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:

0.0000358

AC:

AN:

223368

Hom.:

AF XY:

0.0000418

AC XY:

AN XY:

119684

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000335

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000195

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000910

AC:

AN:

1427918

Hom.:

Cov.:

AF XY:

0.00000991

AC XY:

AN XY:

706596

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000763

Gnomad4 SAS exome

AF:

0.0000124

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000731

Gnomad4 OTH exome

AF:

0.0000170

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152222

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74358

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000192

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000108

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.00000824

AC:

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 submitter

clinical testing

Ambry Genetics

Jan 06, 2023

The c.634C>T (p.R212C) alteration is located in exon 6 (coding exon 6) of the TBCB gene. This alteration results from a C to T substitution at nucleotide position 634, causing the arginine (R) at amino acid position 212 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

0.17

BayesDel_addAF

Uncertain

0.073

BayesDel_noAF

Pathogenic

0.17

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.83

D;D;.

Eigen

Pathogenic

0.84

Eigen_PC

Pathogenic

0.74

FATHMM_MKL

Uncertain

0.91

LIST_S2

Pathogenic

0.98

D;D;D

M_CAP

Pathogenic

0.46

MetaRNN

Pathogenic

0.89

D;D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

3.8

H;.;.

MutationTaster

Benign

1.0

D;D;D;D;D

PrimateAI

Uncertain

0.64

PROVEAN

Pathogenic

-5.9

D;.;.

REVEL

Pathogenic

0.84

Sift

Uncertain

0.0010

D;.;.

Sift4G

Uncertain

0.0020

D;D;D

Polyphen

1.0

D;.;.

Vest4

0.55

MutPred

0.73

Gain of methylation at K211 (P = 0.0172);.;.;

MVP

0.96

MPC

1.2

ClinPred

0.97

GERP RS

4.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.62

gMVP

0.55

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over