Genetic Variant MATCAP1:p.Arg427Gln (chr16-67176947-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_001040715.2(MATCAP1):c.1280G>A(p.Arg427Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000945 in 1,588,008 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. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.0000098 ( 0 hom. )

Consequence

MATCAP1
NM_001040715.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.86

Variant links:

Genes affected

MATCAP1 (HGNC:34408): (microtubule associated tyrosine carboxypeptidase 1)

MATCAP1 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=0.16252151).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MATCAP1	NM_001040715.2 link	c.1280G>A	p.Arg427Gln	missense_variant	Exon 7 of 7	ENST00000563902.2	NP_001035805.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MATCAP1	ENST00000563902.2 link	c.1280G>A	p.Arg427Gln	missense_variant	Exon 7 of 7	1	NM_001040715.2	ENSP00000456838.1		Q68EN5-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152118

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

GnomAD3 exomes

AF:

0.0000178

AC:

AN:

225070

Hom.:

AF XY:

0.0000326

AC XY:

AN XY:

122684

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000640

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000289

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000975

AC:

AN:

1435890

Hom.:

Cov.:

AF XY:

0.00000982

AC XY:

AN XY:

713146

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000263

Gnomad4 SAS exome

AF:

0.0000363

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000819

Gnomad4 OTH exome

AF:

0.0000169

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152118

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74308

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

Alfa

AF:

0.0000317

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000248

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 05, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1280G>A (p.R427Q) alteration is located in exon 7 (coding exon 6) of the KIAA0895L gene. This alteration results from a G to A substitution at nucleotide position 1280, causing the arginine (R) at amino acid position 427 to be replaced by a glutamine (Q). 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

0.093

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.37

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0045

T;T

Eigen

Benign

0.017

Eigen_PC

Benign

0.13

FATHMM_MKL

Benign

0.69

LIST_S2

Benign

0.75

.;T

M_CAP

Benign

0.0026

MetaRNN

Benign

0.16

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.73

N;N

PrimateAI

Benign

0.32

PROVEAN

Benign

-1.4

N;N

REVEL

Benign

0.057

Sift

Benign

0.40

T;T

Sift4G

Benign

0.31

T;T

Polyphen

0.51

P;P

Vest4

0.12

MutPred

0.51

Gain of helix (P = 0.062);Gain of helix (P = 0.062);

MVP

0.34

MPC

1.1

ClinPred

0.40

GERP RS

3.6

Varity_R

0.079

gMVP

0.42

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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