3-125972128-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001308313.2(ROPN1B):​c.74C>T​(p.Ala25Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000118 in 1,614,218 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

ROPN1B
NM_001308313.2 missense

Scores

3
5
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.02
Variant links:
Genes affected
ROPN1B (HGNC:31927): (rhophilin associated tail protein 1B) Enables protein heterodimerization activity. Predicted to be involved in several processes, including flagellated sperm motility; protein localization to cilium; and sperm capacitation. Located in cytoplasm and motile cilium. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ROPN1BNM_001308313.2 linkuse as main transcriptc.74C>T p.Ala25Val missense_variant 3/7 ENST00000514116.6 NP_001295242.1 Q9BZX4-1A0A140VKG6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ROPN1BENST00000514116.6 linkuse as main transcriptc.74C>T p.Ala25Val missense_variant 3/71 NM_001308313.2 ENSP00000426271.1 Q9BZX4-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152210
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251300
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135868
show subpopulations
Gnomad AFR exome
AF:
0.0000617
Gnomad AMR exome
AF:
0.00
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:
0.0000103
AC:
15
AN:
1461890
Hom.:
0
Cov.:
30
AF XY:
0.00000413
AC XY:
3
AN XY:
727244
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:
0.00
Gnomad4 OTH exome
AF:
0.000248
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152328
Hom.:
0
Cov.:
31
AF XY:
0.0000134
AC XY:
1
AN XY:
74482
show subpopulations
Gnomad4 AFR
AF:
0.0000722
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000907
ExAC
AF:
0.00000824
AC:
1

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 GeneticsApr 07, 2023The c.74C>T (p.A25V) alteration is located in exon 2 (coding exon 1) of the ROPN1B gene. This alteration results from a C to T substitution at nucleotide position 74, causing the alanine (A) at amino acid position 25 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
0.22
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.24
CADD
Uncertain
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.26
T;T;.;.;T
Eigen
Uncertain
0.23
Eigen_PC
Benign
0.14
FATHMM_MKL
Uncertain
0.77
D
LIST_S2
Benign
0.79
.;T;T;T;D
M_CAP
Benign
0.059
D
MetaRNN
Uncertain
0.49
T;T;T;T;T
MetaSVM
Benign
-0.70
T
MutationAssessor
Benign
1.5
L;L;.;.;.
PrimateAI
Uncertain
0.57
T
PROVEAN
Uncertain
-3.4
D;D;D;D;D
REVEL
Benign
0.22
Sift
Pathogenic
0.0
D;D;T;D;T
Sift4G
Pathogenic
0.0
D;D;D;D;D
Polyphen
1.0
D;D;.;.;.
Vest4
0.72
MutPred
0.51
Loss of disorder (P = 0.0436);Loss of disorder (P = 0.0436);Loss of disorder (P = 0.0436);Loss of disorder (P = 0.0436);Loss of disorder (P = 0.0436);
MVP
0.82
MPC
0.76
ClinPred
0.97
D
GERP RS
3.4
Varity_R
0.55
gMVP
0.52

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: rs536133990; hg19: chr3-125690971; API