Variant 21-37091341-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001330683.2(TTC3):c.529G>A(p.Asp177Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000411 in 1,459,228 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

TTC3
NM_001330683.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.59

Variant links:

Genes affected

TTC3 (HGNC:12393): (tetratricopeptide repeat domain 3) Enables ubiquitin-protein transferase activity. Involved in protein K48-linked ubiquitination and ubiquitin-dependent protein catabolic process. Located in cytosol; nucleolus; and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

TTC3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TTC3	NM_001330683.2 linkuse as main transcript	c.529G>A	p.Asp177Asn	missense_variant	7/46	ENST00000418766.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TTC3	ENST00000418766.6 linkuse as main transcript	c.529G>A	p.Asp177Asn	missense_variant	7/46	5	NM_001330683.2	P2	P53804-1

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

152064

Hom.:

Cov.:

FAILED QC

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1459228

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

725946

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000225

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:

0.00000360

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

152064

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74256

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

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 07, 2022

The c.529G>A (p.D177N) alteration is located in exon 7 (coding exon 6) of the TTC3 gene. This alteration results from a G to A substitution at nucleotide position 529, causing the aspartic acid (D) at amino acid position 177 to be replaced by an asparagine (N). 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

-0.16

BayesDel_noAF

Benign

-0.47

Cadd

Pathogenic

Dann

Pathogenic

1.0

Eigen

Pathogenic

0.75

Eigen_PC

Pathogenic

0.77

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.86

D;D;D;D;D;.;.

M_CAP

Benign

0.026

MetaRNN

Uncertain

0.45

T;T;T;T;T;T;T

MetaSVM

Benign

-0.73

MutationTaster

Benign

1.0

D;D;D;D;D

PrimateAI

Benign

0.47

PROVEAN

Benign

-2.1

N;N;N;N;N;N;N

REVEL

Benign

0.20

Sift

Uncertain

0.0010

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

Sift4G

Uncertain

0.010

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

Polyphen

1.0

.;.;.;D;.;D;D

Vest4

0.44, 0.31, 0.42, 0.47

MutPred

0.51

Gain of ubiquitination at K173 (P = 0.143);Gain of ubiquitination at K173 (P = 0.143);.;Gain of ubiquitination at K173 (P = 0.143);Gain of ubiquitination at K173 (P = 0.143);Gain of ubiquitination at K173 (P = 0.143);Gain of ubiquitination at K173 (P = 0.143);

MVP

0.83

MPC

0.46

ClinPred

0.90

GERP RS

6.1

Varity_R

0.16

gMVP

0.16

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