chr18-24156169-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000621648.4(CABYR):​c.668C>T​(p.Pro223Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CABYR
ENST00000621648.4 missense

Scores

1
1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.831
Variant links:
Genes affected
CABYR (HGNC:15569): (calcium binding tyrosine phosphorylation regulated) To reach fertilization competence, spermatozoa undergo a series of morphological and molecular maturational processes, termed capacitation, involving protein tyrosine phosphorylation and increased intracellular calcium. The protein encoded by this gene localizes to the principal piece of the sperm flagellum in association with the fibrous sheath and exhibits calcium-binding when phosphorylated during capacitation. A pseudogene on chromosome 3 has been identified for this gene. Alternatively spliced transcript variants encoding distinct protein isoforms have been found for this gene. [provided by RefSeq, Jul 2013]

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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=0.13275611).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CABYRNM_153769.3 linkuse as main transcriptc.541+127C>T intron_variant ENST00000399496.8 NP_722453.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CABYRENST00000399496.8 linkuse as main transcriptc.541+127C>T intron_variant 1 NM_153769.3 ENSP00000382419 P1O75952-3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249180
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
134880
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461890
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

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 GeneticsFeb 21, 2024The c.668C>T (p.P223L) alteration is located in exon 4 (coding exon 3) of the CABYR gene. This alteration results from a C to T substitution at nucleotide position 668, causing the proline (P) at amino acid position 223 to be replaced by a leucine (L). 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
0.17
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
13
DANN
Benign
0.50
DEOGEN2
Benign
0.11
T;.;T;T;T
Eigen
Benign
-0.62
Eigen_PC
Benign
-0.60
FATHMM_MKL
Benign
0.22
N
LIST_S2
Benign
0.70
T;T;.;.;T
M_CAP
Benign
0.0032
T
MetaRNN
Benign
0.13
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.4
.;.;L;L;L
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.29
T
PROVEAN
Benign
-2.2
.;.;N;.;.
REVEL
Benign
0.085
Sift
Pathogenic
0.0
.;.;D;.;.
Sift4G
Uncertain
0.020
D;T;T;T;T
Polyphen
0.037, 0.0050
.;B;B;B;B
Vest4
0.093
MutPred
0.56
.;.;Loss of loop (P = 0.0145);Loss of loop (P = 0.0145);Loss of loop (P = 0.0145);
MVP
0.14
ClinPred
0.73
D
GERP RS
4.2
Varity_R
0.081
gMVP
0.21

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: rs1418285769; hg19: chr18-21736133; API