11-121047614-G-A

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001363644.2(TBCEL):c.220G>A(p.Ala74Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000198 in 1,612,534 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

TBCEL
NM_001363644.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.68

Variant links:

Genes affected

TBCEL (HGNC:28115): (tubulin folding cofactor E like) Predicted to enable alpha-tubulin binding activity. Predicted to be involved in microtubule cytoskeleton organization; post-chaperonin tubulin folding pathway; and tubulin complex assembly. Predicted to be located in cytoskeleton. Predicted to be active in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

TBCEL links:

TBCEL-TECTA (HGNC:54857): (TBCEL-TECTA readthrough) Predicted to enable alpha-tubulin binding activity. Predicted to be involved in microtubule cytoskeleton organization; post-chaperonin tubulin folding pathway; and tubulin complex assembly. Predicted to be active in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

TBCEL-TECTA links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.2574854).

BS2

High AC in GnomAdExome4 at 28 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TBCEL	NM_001363644.2 link	c.220G>A	p.Ala74Thr	missense_variant	Exon 4 of 9	ENST00000683345.1	NP_001350573.1
TBCEL-TECTA	NM_001378761.1 link	c.220G>A	p.Ala74Thr	missense_variant	Exon 3 of 30		NP_001365690.1
TBCEL	NM_001130047.3 link	c.220G>A	p.Ala74Thr	missense_variant	Exon 3 of 8		NP_001123519.1	Q5QJ74
TBCEL	NM_152715.5 link	c.220G>A	p.Ala74Thr	missense_variant	Exon 3 of 8		NP_689928.3	Q5QJ74

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TBCEL	ENST00000683345.1 link	c.220G>A	p.Ala74Thr	missense_variant	Exon 4 of 9		NM_001363644.2	ENSP00000507873.1		Q5QJ74
TBCEL-TECTA	ENST00000645041.1 link	c.172G>A	p.Ala58Thr	missense_variant	Exon 2 of 10			ENSP00000496315.1		A0A2R8YFB7

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

151902

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000589

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000799

AC:

AN:

250232

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135214

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:

0.0000177

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000192

AC:

AN:

1460632

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

726632

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:

0.0000252

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

151902

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

74190

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000589

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

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

Nov 07, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.220G>A (p.A74T) alteration is located in exon 3 (coding exon 2) of the TBCEL gene. This alteration results from a G to A substitution at nucleotide position 220, causing the alanine (A) at amino acid position 74 to be replaced by a threonine (T). 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

0.11

BayesDel_addAF

Benign

-0.058

BayesDel_noAF

Benign

-0.31

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.050

T;T;T;T;.

Eigen

Uncertain

0.34

Eigen_PC

Uncertain

0.44

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.92

.;D;D;D;D

M_CAP

Benign

0.010

MetaRNN

Benign

0.26

T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.4

M;.;M;.;.

PrimateAI

Uncertain

0.75

PROVEAN

Benign

-1.5

N;D;N;N;.

REVEL

Benign

0.12

Sift

Benign

0.36

T;D;T;T;.

Sift4G

Uncertain

0.039

D;D;D;D;.

Polyphen

0.88

P;.;P;.;.

Vest4

0.42

MutPred

0.48

Loss of stability (P = 0.0912);Loss of stability (P = 0.0912);Loss of stability (P = 0.0912);Loss of stability (P = 0.0912);.;

MVP

0.42

MPC

1.4

ClinPred

0.82

GERP RS

5.6

Varity_R

0.085

gMVP

0.46

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