17-59878109-G-A

Variant summary

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

The NM_016261.4(TUBD1):​c.763C>T​(p.Pro255Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,690 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TUBD1
NM_016261.4 missense

Scores

2
11
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.56
Variant links:
Genes affected
TUBD1 (HGNC:16811): (tubulin delta 1) Predicted to enable GTP binding activity. Predicted to be a structural constituent of cytoskeleton. Predicted to be involved in microtubule cytoskeleton organization; mitotic cell cycle; and positive regulation of smoothened signaling pathway. Located in cytosol and nucleoplasm. [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 2 ACMG points.

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

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TUBD1NM_016261.4 linkuse as main transcriptc.763C>T p.Pro255Ser missense_variant 5/9 ENST00000325752.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TUBD1ENST00000325752.8 linkuse as main transcriptc.763C>T p.Pro255Ser missense_variant 5/95 NM_016261.4 P1Q9UJT1-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251224
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135786
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:
0.00000137
AC:
2
AN:
1460690
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726680
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
Bravo
AF:
0.00000756

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 GeneticsMar 18, 2024The c.763C>T (p.P255S) alteration is located in exon 5 (coding exon 4) of the TUBD1 gene. This alteration results from a C to T substitution at nucleotide position 763, causing the proline (P) at amino acid position 255 to be replaced by a serine (S). 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
0.26
BayesDel_addAF
Pathogenic
0.19
D
BayesDel_noAF
Uncertain
0.11
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.18
.;T;.;.;.;T;.
Eigen
Uncertain
0.39
Eigen_PC
Uncertain
0.52
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.88
D;D;D;D;.;.;D
M_CAP
Benign
0.049
D
MetaRNN
Uncertain
0.63
D;D;D;D;D;D;D
MetaSVM
Uncertain
0.12
D
MutationAssessor
Uncertain
2.5
M;M;M;M;M;M;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Uncertain
0.60
T
PROVEAN
Uncertain
-3.2
.;D;D;D;D;.;D
REVEL
Uncertain
0.52
Sift
Benign
0.36
.;T;T;T;T;.;T
Sift4G
Benign
0.17
T;T;T;T;T;T;T
Polyphen
0.027, 0.082
.;B;B;.;.;B;.
Vest4
0.69
MutPred
0.60
Gain of phosphorylation at P255 (P = 0.0276);Gain of phosphorylation at P255 (P = 0.0276);Gain of phosphorylation at P255 (P = 0.0276);Gain of phosphorylation at P255 (P = 0.0276);Gain of phosphorylation at P255 (P = 0.0276);Gain of phosphorylation at P255 (P = 0.0276);.;
MVP
0.78
MPC
0.12
ClinPred
0.55
D
GERP RS
5.7
Varity_R
0.19
gMVP
0.52

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: rs1305023252; hg19: chr17-57955470; COSMIC: COSV57872975; COSMIC: COSV57872975; API