Genetic Variant TUBD1:p.His233Leu (chr17-59878174-T-A) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_016261.4(TUBD1):c.698A>T(p.His233Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000824 in 1,614,194 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 0.000072 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000083 ( 0 hom. )

Consequence

TUBD1
NM_016261.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.91

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]

TUBD1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.758

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TUBD1	NM_016261.4 link	c.698A>T	p.His233Leu	missense_variant	Exon 5 of 9	ENST00000325752.8	NP_057345.2	Q9UJT1-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TUBD1	ENST00000325752.8 link	c.698A>T	p.His233Leu	missense_variant	Exon 5 of 9	5	NM_016261.4	ENSP00000320797.3		Q9UJT1-1

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.0000994

AC:

AN:

251464

Hom.:

AF XY:

0.000118

AC XY:

AN XY:

135908

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:

0.000359

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000114

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000835

AC:

122

AN:

1461880

Hom.:

Cov.:

AF XY:

0.000100

AC XY:

AN XY:

727240

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.0000765

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000429

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000647

Gnomad4 OTH exome

AF:

0.0000662

GnomAD4 genome

AF:

0.0000722

AC:

AN:

152314

Hom.:

Cov.:

AF XY:

0.0000671

AC XY:

AN XY:

74496

show subpopulations

Gnomad4 AFR

AF:

0.0000240

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.000946

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000642

ExAC

AF:

0.0000906

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000178

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 06, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.698A>T (p.H233L) alteration is located in exon 5 (coding exon 4) of the TUBD1 gene. This alteration results from a A to T substitution at nucleotide position 698, causing the histidine (H) at amino acid position 233 to be replaced by a leucine (L). 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

0.16

BayesDel_addAF

Benign

-0.014

BayesDel_noAF

Uncertain

0.050

CADD

Uncertain

DANN

Uncertain

0.97

DEOGEN2

Benign

0.23

.;T;.;.;.;T;.

Eigen

Uncertain

0.28

Eigen_PC

Uncertain

0.37

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.92

D;D;D;D;.;.;D

M_CAP

Uncertain

0.11

MetaRNN

Pathogenic

0.76

D;D;D;D;D;D;D

MetaSVM

Benign

-0.38

MutationAssessor

Uncertain

2.9

M;M;M;M;M;M;.

PrimateAI

Uncertain

0.56

PROVEAN

Pathogenic

-8.3

.;D;D;D;D;.;D

REVEL

Uncertain

0.39

Sift

Uncertain

0.0080

.;D;D;D;D;.;D

Sift4G

Benign

0.16

T;T;T;T;T;T;D

Polyphen

0.21, 0.93

.;B;P;.;.;B;.

Vest4

0.79

MVP

0.88

MPC

0.38

ClinPred

0.89

GERP RS

5.7

Varity_R

0.76

gMVP

0.73

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