Variant chr12-29517476-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_001193451.2(TMTC1):c.2120A>G(p.Gln707Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,872 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Likely benign (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TMTC1
NM_001193451.2 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.990

Variant links:

Genes affected

TMTC1 (HGNC:24099): (transmembrane O-mannosyltransferase targeting cadherins 1) Enables mannosyltransferase activity. Involved in protein O-linked mannosylation. Predicted to be located in endoplasmic reticulum. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

TMTC1 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.049086064).

BP6

Variant 12-29517476-T-C is Benign according to our data. Variant chr12-29517476-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 2303905.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TMTC1	NM_001193451.2 linkuse as main transcript	c.2120A>G	p.Gln707Arg	missense_variant	14/18	ENST00000539277.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TMTC1	ENST00000539277.6 linkuse as main transcript	c.2120A>G	p.Gln707Arg	missense_variant	14/18	1	NM_001193451.2		Q8IUR5-5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251106

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135696

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:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461872

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727236

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:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 27, 2022

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.055

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.63

CADD

Benign

4.0

DANN

Benign

0.74

Eigen

Benign

-0.65

Eigen_PC

Benign

-0.41

FATHMM_MKL

Benign

0.21

LIST_S2

Benign

0.72

T;T;T;T

M_CAP

Benign

0.015

MetaRNN

Benign

0.049

T;T;T;T

MetaSVM

Benign

-1.1

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Benign

0.24

PROVEAN

Benign

1.1

N;N;N;N

REVEL

Benign

0.042

Sift

Benign

1.0

T;T;T;T

Sift4G

Benign

1.0

T;T;T;T

Polyphen

0.0

.;B;.;B

Vest4

0.059

MutPred

0.38

.;Gain of MoRF binding (P = 0.1083);.;.;

MVP

0.56

MPC

0.19

ClinPred

0.027

GERP RS

3.8

Varity_R

0.029

gMVP

0.30

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