Variant 6-30722953-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP2PP3PP5_Moderate

The NM_178014.4(TUBB):c.202C>A(p.Leu68Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

Frequency

Genomes: not found (cov: 32)

Consequence

TUBB
NM_178014.4 missense

Scores

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 1.69

Variant links:

Genes affected

TUBB (HGNC:20778): (tubulin beta class I) This gene encodes a beta tubulin protein. This protein forms a dimer with alpha tubulin and acts as a structural component of microtubules. Mutations in this gene cause cortical dysplasia, complex, with other brain malformations 6. Alternative splicing results in multiple splice variants. There are multiple pseudogenes for this gene on chromosomes 1, 6, 7, 8, 9, and 13. [provided by RefSeq, Jun 2014]

TUBB links:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), TUBB. . Gene score misZ 5.6252 (greater than the threshold 3.09). Trascript score misZ 8.3435 (greater than threshold 3.09). GenCC has associacion of gene with multiple benign circumferential skin creases on limbs 1, complex cortical dysplasia with other brain malformations 6, multiple benign circumferential skin creases on limbs, TUBB3-related tubulinopathy.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.804

PP5

Variant 6-30722953-C-A is Pathogenic according to our data. Variant chr6-30722953-C-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 3343375.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TUBB	NM_178014.4 linkuse as main transcript	c.202C>A	p.Leu68Ile	missense_variant	3/4	ENST00000327892.13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TUBB	ENST00000327892.13 linkuse as main transcript	c.202C>A	p.Leu68Ile	missense_variant	3/4	1	NM_178014.4	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

GeneDx

Mar 27, 2024

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.97

BayesDel_addAF

Pathogenic

0.16

BayesDel_noAF

Uncertain

-0.010

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.18

T;T

Eigen

Uncertain

0.40

Eigen_PC

Uncertain

0.25

FATHMM_MKL

Benign

0.49

M_CAP

Pathogenic

0.34

MetaRNN

Pathogenic

0.80

D;D

MetaSVM

Uncertain

0.31

MutationAssessor

Pathogenic

5.5

H;.

MutationTaster

Benign

1.0

D;D;D;D;D

PrimateAI

Pathogenic

0.85

PROVEAN

Benign

-1.1

N;N

REVEL

Uncertain

0.56

Sift4G

Uncertain

0.0020

D;D

Polyphen

0.23

B;.

Vest4

0.67

MutPred

0.75

Gain of catalytic residue at P70 (P = 0.0282);.;

MVP

0.98

MPC

3.3

ClinPred

0.99

GERP RS

3.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.89

gMVP

0.95

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over