Variant 6-167340447-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_031949.5(TTLL2):c.547G>A(p.Val183Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000366 in 1,614,036 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

TTLL2
NM_031949.5 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.680

Variant links:

Genes affected

TTLL2 (HGNC:21211): (tubulin tyrosine ligase like 2) Predicted to enable tubulin binding activity and tubulin-glutamic acid ligase activity. Predicted to be involved in microtubule cytoskeleton organization and protein polyglutamylation. Predicted to be active in cilium. [provided by Alliance of Genome Resources, Apr 2022]

TTLL2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06366378).

BP6

Variant 6-167340447-G-A is Benign according to our data. Variant chr6-167340447-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2533840.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TTLL2	NM_031949.5 linkuse as main transcript	c.547G>A	p.Val183Ile	missense_variant	3/3	ENST00000239587.10	NP_114155.4
TTLL2	NM_001410948.1 linkuse as main transcript	c.328G>A	p.Val110Ile	missense_variant	2/2		NP_001397877.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
TTLL2	ENST00000239587.10 linkuse as main transcript	c.547G>A	p.Val183Ile	missense_variant	3/3	1	NM_031949.5	ENSP00000239587	P2
TTLL2	ENST00000515138.1 linkuse as main transcript	c.547G>A	p.Val183Ile	missense_variant, NMD_transcript_variant	3/6	1		ENSP00000424130
TTLL2	ENST00000649884.1 linkuse as main transcript	c.328G>A	p.Val110Ile	missense_variant	2/2			ENSP00000497040	A2

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152146

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000159

AC:

AN:

251466

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135902

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:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000363

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.0000399

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000351

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152146

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74318

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000327

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000847

Hom.:

Bravo

AF:

0.000117

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 11, 2023

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.069

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.82

CADD

Benign

0.055

DANN

Benign

0.14

DEOGEN2

Benign

0.0021

.;T

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.092

LIST_S2

Benign

0.64

T;.

M_CAP

Benign

0.0017

MetaRNN

Benign

0.064

T;T

MetaSVM

Benign

-0.92

MutationAssessor

Benign

-0.56

.;N

MutationTaster

Benign

1.0

PrimateAI

Benign

0.28

PROVEAN

Benign

0.31

.;N

REVEL

Benign

0.047

Sift

Benign

0.92

.;T

Sift4G

Benign

1.0

.;T

Polyphen

0.024

.;B

Vest4

0.054

MutPred

0.47

.;Gain of catalytic residue at P185 (P = 0.0282);

MVP

0.014

MPC

0.099

ClinPred

0.027

GERP RS

-3.1

Varity_R

0.021

gMVP

0.17

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