Genetic Variant CATSPERB:p.Leu763Val (chr14-91617710-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_024764.4(CATSPERB):c.2287C>G(p.Leu763Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000025 in 1,599,988 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 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: 0.0000021 ( 0 hom. )

Consequence

CATSPERB
NM_024764.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.550

Variant links:

Genes affected

CATSPERB (HGNC:20500): (cation channel sperm associated auxiliary subunit beta) Predicted to be involved in cell differentiation and spermatogenesis. Predicted to be located in plasma membrane. Predicted to be part of CatSper complex. Predicted to be active in cilium. [provided by Alliance of Genome Resources, Apr 2022]

CATSPERB links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.062502414).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CATSPERB	NM_024764.4 link	c.2287C>G	p.Leu763Val	missense_variant	Exon 20 of 27	ENST00000256343.8	NP_079040.2	Q9H7T0-1B3KWW9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CATSPERB	ENST00000256343.8 link	c.2287C>G	p.Leu763Val	missense_variant	Exon 20 of 27	1	NM_024764.4	ENSP00000256343.3	Q9H7T0-1
CATSPERB	ENST00000557036.1 link	n.*768C>G		non_coding_transcript_exon_variant	Exon 6 of 13	2		ENSP00000451083.1	H0YJA5
CATSPERB	ENST00000557036.1 link	n.*768C>G		3_prime_UTR_variant	Exon 6 of 13	2		ENSP00000451083.1	H0YJA5

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152192

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:

0.00000207

AC:

AN:

1447796

Hom.:

Cov.:

AF XY:

0.00000278

AC XY:

AN XY:

720072

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:

0.00000271

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152192

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74348

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

Aug 05, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2287C>G (p.L763V) alteration is located in exon 20 (coding exon 19) of the CATSPERB gene. This alteration results from a C to G substitution at nucleotide position 2287, causing the leucine (L) at amino acid position 763 to be replaced by a valine (V). 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

0.13

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.62

CADD

Benign

0.33

DANN

Benign

0.97

DEOGEN2

Benign

0.024

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.016

M_CAP

Benign

0.012

MetaRNN

Benign

0.063

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.81

PrimateAI

Benign

0.34

PROVEAN

Benign

-0.31

REVEL

Benign

0.015

Sift

Benign

0.46

Sift4G

Benign

0.53

Polyphen

0.016

Vest4

0.081

MutPred

0.25

Gain of catalytic residue at F766 (P = 0.0031);

MVP

0.26

MPC

0.22

ClinPred

0.085

GERP RS

-4.5

Varity_R

0.035

gMVP

0.28

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