Variant 1-51301724-G-A 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_001297663.2(TTC39A):c.901C>T(p.Arg301Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000717 in 1,604,560 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 0.000085 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000070 ( 0 hom. )

Consequence

TTC39A
NM_001297663.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.88

Variant links:

Genes affected

TTC39A (HGNC:18657): (tetratricopeptide repeat domain 39A) Located in centrosome. [provided by Alliance of Genome Resources, Apr 2022]

TTC39A 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=0.20206934).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TTC39A	NM_001297663.2 linkuse as main transcript	c.901C>T	p.Arg301Cys	missense_variant	12/18	ENST00000680483.1	NP_001284592.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TTC39A	ENST00000680483.1 linkuse as main transcript	c.901C>T	p.Arg301Cys	missense_variant	12/18		NM_001297663.2	ENSP00000505859	A1	Q5SRH9-5

Frequencies

GnomAD3 genomes

AF:

0.0000920

AC:

AN:

152174

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000523

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000565

AC:

AN:

247632

Hom.:

AF XY:

0.0000595

AC XY:

AN XY:

134516

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000145

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:

0.0000710

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.0000702

AC:

102

AN:

1452268

Hom.:

Cov.:

AF XY:

0.0000666

AC XY:

AN XY:

720572

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000823

Gnomad4 OTH exome

AF:

0.0000834

GnomAD4 genome

AF:

0.0000854

AC:

AN:

152292

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74466

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.000523

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000793

Hom.:

Bravo

AF:

0.0000869

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000119

AC:

ExAC

AF:

0.0000496

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000119

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

Aug 04, 2022

The c.913C>T (p.R305C) alteration is located in exon 12 (coding exon 12) of the TTC39A gene. This alteration results from a C to T substitution at nucleotide position 913, causing the arginine (R) at amino acid position 305 to be replaced by a cysteine (C). 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

0.16

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.25

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.17

T;.;.;.;T;.

Eigen

Benign

0.039

Eigen_PC

Benign

-0.00089

FATHMM_MKL

Benign

0.32

LIST_S2

Uncertain

0.97

D;D;D;D;D;D

M_CAP

Benign

0.085

MetaRNN

Benign

0.20

T;T;T;T;T;T

MetaSVM

Benign

-0.45

MutationAssessor

Benign

1.7

L;.;.;.;.;.

MutationTaster

Benign

1.0

D;D;D;D;D;D;D

PrimateAI

Uncertain

0.62

PROVEAN

Uncertain

-3.1

D;D;D;D;D;D

REVEL

Benign

0.20

Sift

Benign

0.17

T;T;T;T;T;T

Sift4G

Benign

0.17

T;T;T;T;T;.

Polyphen

0.73

P;B;D;.;.;.

Vest4

0.67

MVP

0.58

MPC

0.52

ClinPred

0.11

GERP RS

3.9

Varity_R

0.19

gMVP

0.59

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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