Genetic Variant CATSPER2:p.Gly480Arg (chr15-43632322-C-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_172095.4(CATSPER2):c.1438G>A(p.Gly480Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000123 in 1,613,630 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00013 ( 2 hom. )

Consequence

CATSPER2
NM_172095.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.85

Variant links:

Genes affected

CATSPER2 (HGNC:18810): (cation channel sperm associated 2) This gene encodes a member of a family of cation channel proteins that localize to the flagellum of spermatozoa. Defects at this locus causes male infertility. Alternatively spliced transcript variants have been observed at this locus. Readthrough transcription originates upstream of this locus in diphosphoinositol pentakisphosphate kinase 1 pseudogene 1 and is represented by GeneID:110006325. Related pseudogenes are found next to this locus on chromosome 15 and on chromosome 5. [provided by RefSeq, Mar 2017]

CATSPER2 links:

PPIP5K1P1-CATSPER2 (HGNC:):

PPIP5K1P1-CATSPER2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.20031467).

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CATSPER2	NM_172095.4 link	c.1438G>A	p.Gly480Arg	missense_variant	Exon 12 of 13	ENST00000396879.8	NP_742093.1	Q96P56-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CATSPER2	ENST00000396879.8 link	c.1438G>A	p.Gly480Arg	missense_variant	Exon 12 of 13	2	NM_172095.4	ENSP00000380088.3		Q96P56-1
ENSG00000284772	ENST00000643290.1 link	n.-39G>A		upstream_gene_variant				ENSP00000495476.1		A0A2R8Y6Q2

Frequencies

GnomAD3 genomes

AF:

0.0000724

AC:

AN:

151848

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000834

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000119

AC:

AN:

251424

Hom.:

AF XY:

0.000140

AC XY:

AN XY:

135884

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.000555

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000528

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000128

AC:

187

AN:

1461664

Hom.:

Cov.:

AF XY:

0.000113

AC XY:

AN XY:

727142

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000894

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.000101

Gnomad4 SAS exome

AF:

0.000383

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000121

Gnomad4 OTH exome

AF:

0.000166

GnomAD4 genome

AF:

0.0000724

AC:

AN:

151966

Hom.:

Cov.:

AF XY:

0.0000539

AC XY:

AN XY:

74256

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000835

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000106

Hom.:

Bravo

AF:

0.0000453

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000132

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 01, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1438G>A (p.G480R) alteration is located in exon 12 (coding exon 11) of the CATSPER2 gene. This alteration results from a G to A substitution at nucleotide position 1438, causing the glycine (G) at amino acid position 480 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

Benign

0.23

BayesDel_addAF

Benign

-0.068

BayesDel_noAF

Uncertain

0.020

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.13

T;.;.

Eigen

Uncertain

0.32

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Benign

0.59

LIST_S2

Benign

0.66

T;T;T

M_CAP

Uncertain

0.19

MetaRNN

Benign

0.20

T;T;T

MetaSVM

Uncertain

0.55

MutationAssessor

Uncertain

2.6

M;.;.

PrimateAI

Uncertain

0.67

PROVEAN

Uncertain

-2.8

.;D;.

REVEL

Pathogenic

0.68

Sift

Benign

0.072

.;T;.

Sift4G

Uncertain

0.031

.;D;.

Polyphen

1.0

D;D;.

Vest4

0.41

MutPred

0.39

.;Gain of helix (P = 0.0425);.;

MVP

0.88

MPC

0.79

ClinPred

0.64

GERP RS

4.2

Varity_R

0.26

gMVP

0.27

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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