3-49241388-A-G

Variant summary

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

The NM_001135197.2(IHO1):ā€‹c.394A>Gā€‹(p.Ser132Gly) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000503 in 1,608,958 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000020 ( 0 hom., cov: 32)
Exomes š‘“: 0.000054 ( 1 hom. )

Consequence

IHO1
NM_001135197.2 missense, splice_region

Scores

7
11
Splicing: ADA: 0.9904
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.58
Variant links:
Genes affected
IHO1 (HGNC:27945): (interactor of HORMAD1 1) Predicted to be involved in gamete generation; meiosis I cell cycle process; and regulation of homologous chromosome segregation. Predicted to be active in condensed nuclear chromosome. [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
IHO1NM_001135197.2 linkuse as main transcriptc.394A>G p.Ser132Gly missense_variant, splice_region_variant 4/8 ENST00000452691.7 NP_001128669.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IHO1ENST00000452691.7 linkuse as main transcriptc.394A>G p.Ser132Gly missense_variant, splice_region_variant 4/82 NM_001135197.2 ENSP00000407837.2 Q8IYA8-1
IHO1ENST00000296449.9 linkuse as main transcriptc.394A>G p.Ser132Gly missense_variant, splice_region_variant 6/101 ENSP00000296449.5 Q8IYA8-1
IHO1ENST00000438782.5 linkuse as main transcriptc.394A>G p.Ser132Gly missense_variant, splice_region_variant 4/85 ENSP00000391788.1 Q8IYA8-1
IHO1ENST00000366429.2 linkuse as main transcriptc.394A>G p.Ser132Gly missense_variant, splice_region_variant 4/52 ENSP00000403700.1 Q8IYA8-3

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152206
Hom.:
0
Cov.:
32
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:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000118
AC:
29
AN:
245126
Hom.:
1
AF XY:
0.000181
AC XY:
24
AN XY:
132716
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000959
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000895
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000535
AC:
78
AN:
1456752
Hom.:
1
Cov.:
30
AF XY:
0.0000800
AC XY:
58
AN XY:
724606
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:
0.000786
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.0000665
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152206
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74372
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:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.000157
AC:
19
EpiCase
AF:
0.00
EpiControl
AF:
0.0000595

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 GeneticsNov 20, 2023The c.394A>G (p.S132G) alteration is located in exon 6 (coding exon 3) of the CCDC36 gene. This alteration results from a A to G substitution at nucleotide position 394, causing the serine (S) at amino acid position 132 to be replaced by a glycine (G). 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
-0.39
T
BayesDel_noAF
Benign
-0.40
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.20
T;T;T;.
Eigen
Uncertain
0.27
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Benign
0.60
.;T;.;T
M_CAP
Benign
0.0067
T
MetaRNN
Benign
0.085
T;T;T;T
MetaSVM
Benign
-1.1
T
PrimateAI
Benign
0.38
T
PROVEAN
Uncertain
-3.2
D;D;D;D
REVEL
Benign
0.096
Sift
Uncertain
0.021
D;D;D;D
Sift4G
Uncertain
0.060
T;T;T;D
Polyphen
0.99
D;D;D;P
Vest4
0.39
MutPred
0.19
Gain of glycosylation at Y136 (P = 0.0043);Gain of glycosylation at Y136 (P = 0.0043);Gain of glycosylation at Y136 (P = 0.0043);Gain of glycosylation at Y136 (P = 0.0043);
MVP
0.34
MPC
0.54
ClinPred
0.41
T
GERP RS
4.8
Varity_R
0.30
gMVP
0.13

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.99
dbscSNV1_RF
Pathogenic
0.90
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: rs768220494; hg19: chr3-49278821; API