19-36121691-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001281.3(TBCB):​c.520C>T​(p.Pro174Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000143 in 1,402,786 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P174A) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TBCB
NM_001281.3 missense

Scores

19

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.643
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.056898057).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TBCBNM_001281.3 linkc.520C>T p.Pro174Ser missense_variant Exon 4 of 6 ENST00000221855.8 NP_001272.2 Q99426-1
TBCBNM_001300971.3 linkc.367C>T p.Pro123Ser missense_variant Exon 4 of 6 NP_001287900.1 Q99426-2
TBCBNR_155756.2 linkn.1114C>T non_coding_transcript_exon_variant Exon 4 of 6

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TBCBENST00000221855.8 linkc.520C>T p.Pro174Ser missense_variant Exon 4 of 6 1 NM_001281.3 ENSP00000221855.3 Q99426-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000640
AC:
1
AN:
156148
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
84810
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000163
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000143
AC:
2
AN:
1402786
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
692642
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000185
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.085
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
14
DANN
Benign
0.50
DEOGEN2
Benign
0.29
T;T;.
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.33
N
LIST_S2
Benign
0.73
T;T;T
M_CAP
Benign
0.024
T
MetaRNN
Benign
0.057
T;T;T
MetaSVM
Benign
-0.72
T
MutationAssessor
Benign
-0.060
N;.;.
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-1.1
N;.;.
REVEL
Benign
0.12
Sift
Benign
0.74
T;.;.
Sift4G
Benign
0.72
T;T;T
Polyphen
0.0010
B;.;.
Vest4
0.039
MutPred
0.24
Gain of phosphorylation at P174 (P = 0.0587);.;.;
MVP
0.63
MPC
0.55
ClinPred
0.041
T
GERP RS
-2.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.024
gMVP
0.16

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs1425374917; hg19: chr19-36612593; API