NM_001199706.2:c.959A>G

Variant names:

• chr7-36335078-T-C
• rs369747082
• NM_001199706.2:c.959A>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001199706.2(MATCAP2):​c.959A>G​(p.His320Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,550 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: MATCAP2 NM_001199706.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.58
• Publications: 0 publications found

Genes affected

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MATCAP2	NM_001199706.2	c.959A>G	p.His320Arg	missense_variant	Exon 4 of 7	ENST00000440378.6	NP_001186635.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MATCAP2	ENST00000440378.6	c.959A>G	p.His320Arg	missense_variant	Exon 4 of 7	1	NM_001199706.2	ENSP00000390837.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461550 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 727048

African (AFR) AF: 0.00 AC: 0 AN: 33472

American (AMR) AF: 0.00 AC: 0 AN: 44688

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39682

South Asian (SAS) AF: 0.00 AC: 0 AN: 86148

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53398

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111874

Other (OTH) AF: 0.0000166 AC: 1 AN: 60388

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000119 AC: 1

ExAC AF: 0.00000827 AC: 1

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Dec 22, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.968A>G (p.H323R) alteration is located in exon 4 (coding exon 4) of the KIAA0895 gene. This alteration results from a A to G substitution at nucleotide position 968, causing the histidine (H) at amino acid position 323 to be replaced by an arginine (R). 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	Uncertain	0.40
BayesDel_addAF	Pathogenic	0.18	D
BayesDel_noAF	Uncertain	0.010
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.21	T;.;.;.;.;.;.
Eigen	Uncertain	0.62
Eigen_PC	Uncertain	0.66
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.84	T;T;T;T;T;T;T
M_CAP	Benign	0.0064	T
MetaRNN	Uncertain	0.58	D;D;D;D;D;D;D
MetaSVM	Benign	-0.45	T
MutationAssessor	Uncertain	2.2	M;.;.;.;.;.;.
PhyloP100		7.6
PrimateAI	Uncertain	0.73	T
PROVEAN	Uncertain	-3.9	D;D;D;D;D;D;D
REVEL	Benign	0.23
Sift	Benign	0.049	D;T;T;T;D;T;T
Sift4G	Uncertain	0.051	T;T;T;T;T;T;.
Polyphen		0.98	D;P;P;.;.;.;.
Vest4		0.76
MVP		0.51
MPC		0.40
ClinPred		0.65	D
GERP RS		5.8
Varity_R		0.56
gMVP		0.68
Mutation Taster		=46/54	disease causing

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

Other links and lift over

dbSNP: rs369747082; hg19: chr7-36374687;