Genetic Variant NM_001199706.2:c.344G>A (chr7-36357272-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_001199706.2(MATCAP2):c.344G>A(p.Cys115Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,870 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 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: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

MATCAP2
NM_001199706.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.33

Variant links:

Genes affected

MATCAP2 (HGNC:22206): (microtubule associated tyrosine carboxypeptidase 2)

MATCAP2 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=0.16421759).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MATCAP2	NM_001199706.2 link	c.344G>A	p.Cys115Tyr	missense_variant	Exon 2 of 7	ENST00000440378.6	NP_001186635.1	Q8NCT3-6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MATCAP2	ENST00000440378.6 link	c.344G>A	p.Cys115Tyr	missense_variant	Exon 2 of 7	1	NM_001199706.2	ENSP00000390837.1		Q8NCT3-6

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000802

AC:

AN:

249222

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

135192

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:

0.0000654

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461870

Hom.:

Cov.:

AF XY:

0.00000275

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:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000827

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 21, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.497G>A (p.C166Y) alteration is located in exon 3 (coding exon 3) of the KIAA0895 gene. This alteration results from a G to A substitution at nucleotide position 497, causing the cysteine (C) at amino acid position 166 to be replaced by a tyrosine (Y). 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

0.19

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.36

CADD

Benign

DANN

Benign

0.92

DEOGEN2

Benign

0.19

T;.;.;.;.;.

Eigen

Benign

0.011

Eigen_PC

Benign

0.18

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.78

T;T;T;T;T;T

M_CAP

Benign

0.0041

MetaRNN

Benign

0.16

T;T;T;T;T;T

MetaSVM

Benign

-0.93

MutationAssessor

Benign

1.6

L;.;.;.;.;.

PrimateAI

Benign

0.47

PROVEAN

Uncertain

-3.0

D;D;D;D;D;D

REVEL

Benign

0.052

Sift

Benign

0.076

T;T;T;T;T;T

Sift4G

Benign

0.12

T;T;T;T;T;T

Polyphen

0.021

B;B;B;.;.;P

Vest4

0.32

MutPred

0.49

Loss of catalytic residue at L167 (P = 0.0246);.;.;.;.;.;

MVP

0.56

MPC

0.50

ClinPred

0.79

GERP RS

4.8

Varity_R

0.16

gMVP

0.45

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