Variant 9-127717690-C-T 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.344C>T(p.Ala115Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,688 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TTC16
NM_144965.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.162

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=0.051572412).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TTC16	NM_144965.3 linkuse as main transcript	c.344C>T	p.Ala115Val	missense_variant	4/14	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.344C>T	p.Ala115Val	missense_variant	4/14	1	NM_144965.3	ENSP00000362386	P1	Q8NEE8-1
PTRH1	ENST00000419060.5 linkuse as main transcript	c.-1320-731G>A		intron_variant		2		ENSP00000418661	P1
PTRH1	ENST00000429848.1 linkuse as main transcript	n.307-1116G>A		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251232

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135842

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461688

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727142

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

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

Mar 18, 2024

The c.344C>T (p.A115V) alteration is located in exon 4 (coding exon 4) of the TTC16 gene. This alteration results from a C to T substitution at nucleotide position 344, causing the alanine (A) at amino acid position 115 to be replaced by a valine (V). 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

0.14

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.46

CADD

Benign

3.2

DANN

Benign

0.74

DEOGEN2

Benign

0.00076

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.031

LIST_S2

Benign

0.59

M_CAP

Benign

0.0089

MetaRNN

Benign

0.052

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.53

MutationTaster

Benign

0.99

D;N;D

PrimateAI

Benign

0.27

PROVEAN

Benign

-0.83

REVEL

Benign

0.031

Sift

Benign

1.0

Sift4G

Benign

0.85

Polyphen

0.051

Vest4

0.30

MutPred

0.33

Loss of disorder (P = 0.0687);

MVP

0.49

MPC

0.19

ClinPred

0.053

GERP RS

0.25

Varity_R

0.041

gMVP

0.065

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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