Variant 13-100605095-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_032813.5(TMTC4):c.2182T>C(p.Tyr728His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Consequence

TMTC4
NM_032813.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.94

Variant links:

Genes affected

TMTC4 (HGNC:25904): (transmembrane O-mannosyltransferase targeting cadherins 4) This gene encodes a transmembrane protein that belongs to family of proteins containing an N-terminal transmembrane domain and a C-terminal tetratricopeptide repeat (TPR) domain. TPR domains mediate protein-protein interactions in various cellular processes, such as synaptic vesicle fusion, protein folding, and protein translocation. A pseudogene of this gene has been defined on chromosome 5. [provided by RefSeq, Apr 2017]

TMTC4 links:

TMTC4 (HGNC:):

TMTC4 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.932

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TMTC4	NM_032813.5 linkuse as main transcript	c.2182T>C	p.Tyr728His	missense_variant	19/19	ENST00000342624.10	NP_116202.2	Q5T4D3-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
TMTC4	ENST00000342624.10 linkuse as main transcript	c.2182T>C	p.Tyr728His	missense_variant	19/19	2	NM_032813.5	ENSP00000343871.5	Q5T4D3-3
TMTC4	ENST00000376234.7 linkuse as main transcript	c.2125T>C	p.Tyr709His	missense_variant	18/18	1		ENSP00000365408.3	Q5T4D3-1
TMTC4	ENST00000328767.9 linkuse as main transcript	c.1792T>C	p.Tyr598His	missense_variant	16/16	2		ENSP00000365409.2	Q5T4D3-4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251018

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135702

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:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Cov.:

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

Jan 06, 2023

The c.2182T>C (p.Y728H) alteration is located in exon 19 (coding exon 18) of the TMTC4 gene. This alteration results from a T to C substitution at nucleotide position 2182, causing the tyrosine (Y) at amino acid position 728 to be replaced by a histidine (H). 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

Pathogenic

0.99

BayesDel_addAF

Pathogenic

0.30

BayesDel_noAF

Pathogenic

0.19

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.21

T;.;.

Eigen

Pathogenic

0.96

Eigen_PC

Pathogenic

0.93

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.94

D;D;D

M_CAP

Uncertain

0.21

MetaRNN

Pathogenic

0.93

D;D;D

MetaSVM

Uncertain

0.11

MutationAssessor

Pathogenic

3.2

M;.;.

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-4.3

D;D;D

REVEL

Pathogenic

0.70

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

D;D;.

Vest4

0.85

MutPred

0.80

Gain of disorder (P = 0.0188);.;.;

MVP

0.91

MPC

0.57

ClinPred

1.0

GERP RS

6.2

Varity_R

0.85

gMVP

0.80

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