Variant 2-74491509-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_022492.6(TTC31):c.713T>C(p.Val238Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000322 in 1,613,308 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 0.00038 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00032 ( 0 hom. )

Consequence

TTC31
NM_022492.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.52

Variant links:

Genes affected

TTC31 (HGNC:25759): (tetratricopeptide repeat domain 31)

TTC31 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13682693).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TTC31	NM_022492.6 linkuse as main transcript	c.713T>C	p.Val238Ala	missense_variant	8/13	ENST00000233623.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TTC31	ENST00000233623.11 linkuse as main transcript	c.713T>C	p.Val238Ala	missense_variant	8/13	1	NM_022492.6	P1	Q49AM3-1

Frequencies

GnomAD3 genomes

AF:

0.000381

AC:

AN:

152068

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

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:

0.0000943

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000662

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.000297

AC:

AN:

248846

Hom.:

AF XY:

0.000267

AC XY:

AN XY:

135006

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000233

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000392

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000470

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.000316

AC:

462

AN:

1461122

Hom.:

Cov.:

AF XY:

0.000314

AC XY:

228

AN XY:

726888

show subpopulations

Gnomad4 AFR exome

AF:

0.0000899

Gnomad4 AMR exome

AF:

0.000202

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000452

Gnomad4 FIN exome

AF:

0.000206

Gnomad4 NFE exome

AF:

0.000343

Gnomad4 OTH exome

AF:

0.000315

GnomAD4 genome

AF:

0.000381

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.000336

AC XY:

AN XY:

74406

show subpopulations

Gnomad4 AFR

AF:

0.000121

Gnomad4 AMR

AF:

0.000327

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.0000943

Gnomad4 NFE

AF:

0.000662

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.000486

Hom.:

Bravo

AF:

0.000366

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000363

AC:

ExAC

AF:

0.000314

AC:

EpiCase

AF:

0.000327

EpiControl

AF:

0.000356

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 03, 2024

The c.713T>C (p.V238A) alteration is located in exon 8 (coding exon 8) of the TTC31 gene. This alteration results from a T to C substitution at nucleotide position 713, causing the valine (V) at amino acid position 238 to be replaced by an alanine (A). 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

Pathogenic

0.77

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.19

CADD

Uncertain

DANN

Uncertain

1.0

Eigen

Uncertain

0.35

Eigen_PC

Uncertain

0.35

FATHMM_MKL

Uncertain

0.88

LIST_S2

Benign

0.68

T;T;T

M_CAP

Benign

0.017

MetaRNN

Benign

0.14

T;T;T

MetaSVM

Benign

-0.42

MutationAssessor

Benign

1.1

L;.;L

MutationTaster

Benign

0.55

D;D;D

PrimateAI

Uncertain

0.69

REVEL

Benign

0.16

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

.;.;D

Vest4

0.71

MVP

0.77

MPC

0.51

ClinPred

0.22

GERP RS

4.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.12

gMVP

0.26

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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