Variant 9-127723276-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_144965.3(TTC16):c.815A>G(p.Gln272Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000113 in 1,612,836 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00011 ( 1 hom. )

Consequence

TTC16
NM_144965.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.621

Variant links:

Genes affected

TTC16 (HGNC:26536): (tetratricopeptide repeat domain 16)

TTC16 links:

PTRH1 (HGNC:27039): (peptidyl-tRNA hydrolase 1 homolog) Enables RNA binding activity. [provided by Alliance of Genome Resources, Apr 2022]

PTRH1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.04822865).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TTC16	NM_144965.3 linkuse as main transcript	c.815A>G	p.Gln272Arg	missense_variant	7/14	ENST00000373289.4	NP_659402.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TTC16	ENST00000373289.4 linkuse as main transcript	c.815A>G	p.Gln272Arg	missense_variant	7/14	1	NM_144965.3	ENSP00000362386	P1	Q8NEE8-1

Frequencies

GnomAD3 genomes

AF:

0.000171

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

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:

0.000382

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000124

AC:

AN:

249076

Hom.:

AF XY:

0.0000813

AC XY:

AN XY:

135224

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.000260

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000107

AC:

156

AN:

1460612

Hom.:

Cov.:

AF XY:

0.000110

AC XY:

AN XY:

726598

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.0000192

Gnomad4 NFE exome

AF:

0.000134

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.000171

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74374

show subpopulations

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:

0.000382

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000270

Hom.:

Bravo

AF:

0.000140

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000140

AC:

EpiCase

AF:

0.000436

EpiControl

AF:

0.000296

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

Sep 27, 2021

The c.815A>G (p.Q272R) alteration is located in exon 7 (coding exon 7) of the TTC16 gene. This alteration results from a A to G substitution at nucleotide position 815, causing the glutamine (Q) at amino acid position 272 to be replaced by an arginine (R). 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

0.097

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.58

CADD

Benign

4.7

DANN

Benign

0.94

DEOGEN2

Benign

0.0045

Eigen

Benign

-0.93

Eigen_PC

Benign

-0.96

FATHMM_MKL

Benign

0.031

LIST_S2

Benign

0.48

M_CAP

Benign

0.011

MetaRNN

Benign

0.048

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.29

PROVEAN

Benign

-1.6

REVEL

Benign

0.041

Sift

Benign

0.45

Sift4G

Benign

0.35

Polyphen

0.016

Vest4

0.21

MVP

0.40

MPC

0.19

ClinPred

0.024

GERP RS

0.92

Varity_R

0.098

gMVP

0.19

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