Variant 1-205228629-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_014858.4(TMCC2):c.65A>G(p.Glu22Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000868 in 1,613,222 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

TMCC2
NM_014858.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.04

Variant links:

Genes affected

TMCC2 (HGNC:24239): (transmembrane and coiled-coil domain family 2) Involved in amyloid precursor protein metabolic process. Located in endoplasmic reticulum. [provided by Alliance of Genome Resources, Apr 2022]

TMCC2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.30854738).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
TMCC2	NM_014858.4 linkuse as main transcript	c.65A>G	p.Glu22Gly	missense_variant	1/5	ENST00000358024.8
TMCC2	XM_005245686.4 linkuse as main transcript	c.65A>G	p.Glu22Gly	missense_variant	1/5
TMCC2	XM_047436073.1 linkuse as main transcript	c.-359A>G		5_prime_UTR_variant	1/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TMCC2	ENST00000358024.8 linkuse as main transcript	c.65A>G	p.Glu22Gly	missense_variant	1/5	1	NM_014858.4	P3	O75069-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000890

AC:

AN:

1461084

Hom.:

Cov.:

AF XY:

0.00000826

AC XY:

AN XY:

726806

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000117

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152138

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74314

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

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 03, 2024

The c.65A>G (p.E22G) alteration is located in exon 1 (coding exon 1) of the TMCC2 gene. This alteration results from a A to G substitution at nucleotide position 65, causing the glutamic acid (E) at amino acid position 22 to be replaced by a glycine (G). 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

0.077

BayesDel_addAF

Benign

-0.066

BayesDel_noAF

Benign

-0.33

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.017

Eigen

Uncertain

0.41

Eigen_PC

Uncertain

0.44

FATHMM_MKL

Uncertain

0.85

LIST_S2

Benign

0.66

M_CAP

Benign

0.030

MetaRNN

Benign

0.31

MetaSVM

Benign

-0.94

MutationAssessor

Benign

0.69

MutationTaster

Benign

0.57

PrimateAI

Uncertain

0.57

PROVEAN

Benign

-0.45

REVEL

Benign

0.17

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.013

Polyphen

0.98

Vest4

0.30

MutPred

0.089

Loss of glycosylation at S26 (P = 0.2498);

MVP

0.77

MPC

0.69

ClinPred

0.89

GERP RS

4.9

Varity_R

0.14

gMVP

0.43

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