11-64300858-G-C

Variant summary

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

The NM_001039496.2(CATSPERZ):ā€‹c.223G>Cā€‹(p.Glu75Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000223 in 1,560,110 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/19 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: š‘“ 0.00012 ( 0 hom., cov: 33)
Exomes š‘“: 0.00023 ( 1 hom. )

Consequence

CATSPERZ
NM_001039496.2 missense

Scores

18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.99
Variant links:
Genes affected
CATSPERZ (HGNC:19231): (catsper channel auxiliary subunit zeta) Predicted to be involved in flagellated sperm motility; male meiotic nuclear division; and sperm capacitation. Located in cytoplasm and sperm principal piece. [provided by Alliance of Genome Resources, Apr 2022]
KCNK4-TEX40 (HGNC:56753): (KCNK4-CATSPERZ readthrough (NMD candidate)) This locus represents naturally occurring readthrough transcription between the neighboring KCNK4 (potassium channel subfamily K member 4) and the downstream TEX40 (testis expressed 40) chromosome 11. The readthrough transcript is a candidate for nonsense-mediated mRNA decay (NMD), and is unlikely to produce a protein product. [provided by RefSeq, Nov 2015]

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=0.05305201).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CATSPERZNM_001039496.2 linkc.223G>C p.Glu75Gln missense_variant 2/5 ENST00000328404.8 NP_001034585.1 Q9NTU4
KCNK4-CATSPERZNR_133662.1 linkn.2230G>C non_coding_transcript_exon_variant 8/11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CATSPERZENST00000328404.8 linkc.223G>C p.Glu75Gln missense_variant 2/51 NM_001039496.2 ENSP00000491717.1 Q9NTU4
KCNK4-TEX40ENST00000539086.5 linkn.2230G>C non_coding_transcript_exon_variant 8/111
CATSPERZENST00000539943.1 linkc.97G>C p.Glu33Gln missense_variant 1/42 ENSP00000443917.1 F5H186

Frequencies

GnomAD3 genomes
AF:
0.000125
AC:
19
AN:
152252
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000176
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000989
AC:
16
AN:
161800
Hom.:
0
AF XY:
0.000126
AC XY:
11
AN XY:
87332
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000792
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000427
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000201
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000234
AC:
329
AN:
1407740
Hom.:
1
Cov.:
32
AF XY:
0.000234
AC XY:
163
AN XY:
695426
show subpopulations
Gnomad4 AFR exome
AF:
0.0000313
Gnomad4 AMR exome
AF:
0.000248
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000876
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000273
Gnomad4 OTH exome
AF:
0.000257
GnomAD4 genome
AF:
0.000125
AC:
19
AN:
152370
Hom.:
0
Cov.:
33
AF XY:
0.0000805
AC XY:
6
AN XY:
74518
show subpopulations
Gnomad4 AFR
AF:
0.0000481
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000176
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000198
Hom.:
0
Bravo
AF:
0.000178
ExAC
AF:
0.0000262
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 05, 2024The c.223G>C (p.E75Q) alteration is located in exon 2 (coding exon 2) of the TEX40 gene. This alteration results from a G to C substitution at nucleotide position 223, causing the glutamic acid (E) at amino acid position 75 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
0.14
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.68
CADD
Benign
0.23
DANN
Benign
0.96
DEOGEN2
Benign
0.0081
T;.
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.013
N
LIST_S2
Benign
0.42
T;T
M_CAP
Benign
0.0098
T
MetaRNN
Benign
0.053
T;T
MetaSVM
Benign
-1.1
T
PrimateAI
Benign
0.25
T
PROVEAN
Benign
-1.5
.;N
REVEL
Benign
0.027
Sift
Benign
0.20
.;T
Sift4G
Benign
0.15
.;T
Polyphen
0.27
B;.
Vest4
0.040
MVP
0.030
MPC
1.0
ClinPred
0.038
T
GERP RS
-5.2
Varity_R
0.064
gMVP
0.035

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.

Other links and lift over

dbSNP: rs777113200; hg19: chr11-64068330; API