Variant 11-113323371-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_017868.4(TTC12):c.142A>G(p.Met48Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000477 in 1,613,584 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0027 ( 4 hom., cov: 32)

Exomes 𝑓: 0.00024 ( 3 hom. )

Consequence

TTC12
NM_017868.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0390

Variant links:

Genes affected

TTC12 (HGNC:23700): (tetratricopeptide repeat domain 12) Involved in axonemal dynein complex assembly and sperm axoneme assembly. Located in centrosome and cytoplasm. Implicated in primary ciliary dyskinesia 45. [provided by Alliance of Genome Resources, Apr 2022]

TTC12 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0052766204).

BS2

High Homozygotes in GnomAd at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TTC12	NM_017868.4 linkuse as main transcript	c.142A>G	p.Met48Val	missense_variant	3/22	ENST00000529221.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TTC12	ENST00000529221.6 linkuse as main transcript	c.142A>G	p.Met48Val	missense_variant	3/22	2	NM_017868.4	A2	Q9H892-1

Frequencies

GnomAD3 genomes

AF:

0.00270

AC:

411

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00953

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000524

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:

0.00384

GnomAD3 exomes

AF:

0.000626

AC:

157

AN:

250824

Hom.:

AF XY:

0.000420

AC XY:

AN XY:

135588

show subpopulations

Gnomad AFR exome

AF:

0.00868

Gnomad AMR exome

AF:

0.000349

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000655

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000245

AC:

358

AN:

1461290

Hom.:

Cov.:

AF XY:

0.000180

AC XY:

131

AN XY:

726970

show subpopulations

Gnomad4 AFR exome

AF:

0.00872

Gnomad4 AMR exome

AF:

0.000471

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.000547

GnomAD4 genome

AF:

0.00271

AC:

412

AN:

152294

Hom.:

Cov.:

AF XY:

0.00269

AC XY:

200

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.00953

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:

0.00

Gnomad4 OTH

AF:

0.00380

Alfa

AF:

0.000553

Hom.:

Bravo

AF:

0.00313

ESP6500AA

AF:

0.00954

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000807

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 05, 2022

The c.142A>G (p.M48V) alteration is located in exon 3 (coding exon 2) of the TTC12 gene. This alteration results from a A to G substitution at nucleotide position 142, causing the methionine (M) at amino acid position 48 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

0.10

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.48

Cadd

Benign

3.9

Dann

Benign

0.81

DEOGEN2

Benign

0.012

T;T;T;.;.;.;T;.;.;.

Eigen

Benign

-0.91

Eigen_PC

Benign

-0.92

FATHMM_MKL

Benign

0.019

LIST_S2

Benign

0.56

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

M_CAP

Benign

0.0033

MetaRNN

Benign

0.0053

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

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.9

M;.;.;.;.;.;.;.;M;.

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Benign

0.23

PROVEAN

Benign

-0.40

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

REVEL

Benign

0.055

Sift

Benign

0.42

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

Sift4G

Benign

0.31

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

Polyphen

0.0060

B;.;.;.;.;.;.;.;.;.

Vest4

0.045

MVP

0.15

MPC

0.074

ClinPred

0.0056

GERP RS

-2.5

Varity_R

0.066

gMVP

0.18

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