Genetic Variant TCL1B:p.Gly93Trp (chr14-95690850-G-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_004918.4(TCL1B):c.277G>T(p.Gly93Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,836 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

TCL1B
NM_004918.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.351

Publications

31 publications found

Variant links:

Genes affected

TCL1B (HGNC:11649): (TCL1 family AKT coactivator B) Enables protein kinase binding activity and protein serine/threonine kinase activator activity. Involved in positive regulation of peptidyl-serine phosphorylation and positive regulation of protein serine/threonine kinase activity. Part of protein-containing complex. [provided by Alliance of Genome Resources, Apr 2022]

TCL1B links:

ENSG00000259084 (HGNC:):

ENSG00000259084 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.37286967).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TCL1B	NM_004918.4 link	c.277G>T	p.Gly93Trp	missense_variant	Exon 2 of 4	ENST00000340722.8	NP_004909.1	O95988A0A024R6P4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TCL1B	ENST00000340722.8 link	c.277G>T	p.Gly93Trp	missense_variant	Exon 2 of 4	1	NM_004918.4	ENSP00000343223.6		O95988

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251402

AF XY:

0.00000736

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461836

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727202

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1111966

Other (OTH)

AF:

0.00

AC:

AN:

60388

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.37

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.45

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.083

Eigen

Benign

-0.27

Eigen_PC

Benign

-0.56

FATHMM_MKL

Benign

0.027

LIST_S2

Benign

0.56

M_CAP

Benign

0.026

MetaRNN

Benign

0.37

MetaSVM

Benign

-0.88

MutationAssessor

Uncertain

2.3

PhyloP100

0.35

PrimateAI

Benign

0.27

PROVEAN

Uncertain

-3.7

REVEL

Benign

0.083

Sift

Benign

0.030

Sift4G

Uncertain

0.023

Polyphen

1.0

Vest4

0.45

MutPred

0.46

Gain of MoRF binding (P = 0.0271);

MVP

0.11

MPC

0.92

ClinPred

0.85

GERP RS

0.76

Varity_R

0.24

gMVP

0.25

Mutation Taster

=97/3

polymorphism

(source)

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

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chr14-95690850-G-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over