Variant chr12-94581890-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020698.4(TMCC3):c.727G>A(p.Ala243Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000743 in 1,614,118 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

TMCC3
NM_020698.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.43

Variant links:

Genes affected

TMCC3 (HGNC:29199): (transmembrane and coiled-coil domain family 3) Enables 14-3-3 protein binding activity and identical protein binding activity. Located in endoplasmic reticulum. [provided by Alliance of Genome Resources, Apr 2022]

TMCC3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.18639827).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TMCC3	NM_020698.4 linkuse as main transcript	c.727G>A	p.Ala243Thr	missense_variant	2/4	ENST00000261226.9	NP_065749.3	Q9ULS5
TMCC3	NM_001301036.2 linkuse as main transcript	c.634G>A	p.Ala212Thr	missense_variant	2/4		NP_001287965.1	Q9ULS5G3V207

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TMCC3	ENST00000261226.9 linkuse as main transcript	c.727G>A	p.Ala243Thr	missense_variant	2/4	1	NM_020698.4	ENSP00000261226.4		Q9ULS5
TMCC3	ENST00000551457.1 linkuse as main transcript	c.634G>A	p.Ala212Thr	missense_variant	2/4	1		ENSP00000449888.1		G3V207

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152236

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461882

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000450

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152236

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74376

show subpopulations

Gnomad4 AFR

AF:

0.0000482

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:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

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

Oct 20, 2024

The c.727G>A (p.A243T) alteration is located in exon 2 (coding exon 2) of the TMCC3 gene. This alteration results from a G to A substitution at nucleotide position 727, causing the alanine (A) at amino acid position 243 to be replaced by a threonine (T). 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

0.11

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.59

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.022

T;.

Eigen

Benign

0.050

Eigen_PC

Benign

0.036

FATHMM_MKL

Uncertain

0.86

LIST_S2

Benign

0.83

T;T

M_CAP

Benign

0.014

MetaRNN

Benign

0.19

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.1

L;.

PrimateAI

Benign

0.45

PROVEAN

Benign

-1.6

N;N

REVEL

Benign

0.13

Sift

Benign

0.093

T;T

Sift4G

Benign

0.17

T;T

Polyphen

0.95

P;.

Vest4

0.081

MutPred

0.54

Gain of glycosylation at A243 (P = 0.0468);.;

MVP

0.13

MPC

0.29

ClinPred

0.62

GERP RS

4.1

Varity_R

0.096

gMVP

0.61

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