rs941920

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001080414.4(CCDC88C):​c.5975T>C​(p.Leu1992Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.882 in 1,609,524 control chromosomes in the GnomAD database, including 629,801 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.90 ( 61983 hom., cov: 34)
Exomes 𝑓: 0.88 ( 567818 hom. )

Consequence

CCDC88C
NM_001080414.4 missense

Scores

18

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -0.254
Variant links:
Genes affected
CCDC88C (HGNC:19967): (coiled-coil domain containing 88C) This gene encodes a ubiquitously expressed coiled-coil domain-containing protein that interacts with the dishevelled protein and is a negative regulator of the Wnt signalling pathway. The protein encoded by this gene has a PDZ-domain binding motif in its C-terminus with which it interacts with the dishevelled protein. Dishevelled is a scaffold protein involved in the regulation of the Wnt signaling pathway. The Wnt signaling pathway plays an important role in embryonic development, tissue maintenance, and cancer progression. Mutations in this gene cause autosomal recessive, primary non-syndromic congenital hydrocephalus; a condition characterized by excessive accumulation of cerebrospinal fluid in the ventricles of the brain. [provided by RefSeq, Jan 2013]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=9.007662E-7).
BP6
Variant 14-91272737-A-G is Benign according to our data. Variant chr14-91272737-A-G is described in ClinVar as [Benign]. Clinvar id is 158118.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr14-91272737-A-G is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.971 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CCDC88CNM_001080414.4 linkc.5975T>C p.Leu1992Pro missense_variant Exon 30 of 30 ENST00000389857.11 NP_001073883.2 Q9P219-1B4DZB8

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CCDC88CENST00000389857.11 linkc.5975T>C p.Leu1992Pro missense_variant Exon 30 of 30 5 NM_001080414.4 ENSP00000374507.6 Q9P219-1
CCDC88CENST00000556726 linkc.*1809T>C 3_prime_UTR_variant Exon 7 of 7 5 ENSP00000452406.1 H0YJX5

Frequencies

GnomAD3 genomes
AF:
0.898
AC:
136665
AN:
152166
Hom.:
61928
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.979
Gnomad AMI
AF:
0.901
Gnomad AMR
AF:
0.818
Gnomad ASJ
AF:
0.855
Gnomad EAS
AF:
0.586
Gnomad SAS
AF:
0.731
Gnomad FIN
AF:
0.948
Gnomad MID
AF:
0.867
Gnomad NFE
AF:
0.898
Gnomad OTH
AF:
0.870
GnomAD3 exomes
AF:
0.846
AC:
204013
AN:
241008
Hom.:
87667
AF XY:
0.844
AC XY:
111409
AN XY:
132042
show subpopulations
Gnomad AFR exome
AF:
0.981
Gnomad AMR exome
AF:
0.793
Gnomad ASJ exome
AF:
0.861
Gnomad EAS exome
AF:
0.575
Gnomad SAS exome
AF:
0.751
Gnomad FIN exome
AF:
0.947
Gnomad NFE exome
AF:
0.896
Gnomad OTH exome
AF:
0.860
GnomAD4 exome
AF:
0.880
AC:
1282470
AN:
1457240
Hom.:
567818
Cov.:
71
AF XY:
0.876
AC XY:
634881
AN XY:
724928
show subpopulations
Gnomad4 AFR exome
AF:
0.983
Gnomad4 AMR exome
AF:
0.792
Gnomad4 ASJ exome
AF:
0.863
Gnomad4 EAS exome
AF:
0.605
Gnomad4 SAS exome
AF:
0.748
Gnomad4 FIN exome
AF:
0.944
Gnomad4 NFE exome
AF:
0.899
Gnomad4 OTH exome
AF:
0.870
GnomAD4 genome
AF:
0.898
AC:
136779
AN:
152284
Hom.:
61983
Cov.:
34
AF XY:
0.893
AC XY:
66512
AN XY:
74448
show subpopulations
Gnomad4 AFR
AF:
0.979
Gnomad4 AMR
AF:
0.818
Gnomad4 ASJ
AF:
0.855
Gnomad4 EAS
AF:
0.586
Gnomad4 SAS
AF:
0.730
Gnomad4 FIN
AF:
0.948
Gnomad4 NFE
AF:
0.898
Gnomad4 OTH
AF:
0.870
Alfa
AF:
0.882
Hom.:
105414
Bravo
AF:
0.894
TwinsUK
AF:
0.894
AC:
3314
ALSPAC
AF:
0.903
AC:
3480
ESP6500AA
AF:
0.976
AC:
3605
ESP6500EA
AF:
0.899
AC:
7322
ExAC
AF:
0.851
AC:
102108
Asia WGS
AF:
0.691
AC:
2406
AN:
3478
EpiCase
AF:
0.884
EpiControl
AF:
0.883

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Apr 08, 2013
Genetic Services Laboratory, University of Chicago
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 29, 2017
Eurofins Ntd Llc (ga)
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:2
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Spinocerebellar ataxia type 40 Benign:1
Jul 14, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hydrocephalus, nonsyndromic, autosomal recessive 1 Benign:1
Jul 14, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.050
BayesDel_addAF
Benign
-0.81
T
BayesDel_noAF
Benign
-0.79
CADD
Benign
1.6
DANN
Benign
0.20
DEOGEN2
Benign
0.0020
T;T
Eigen
Benign
-1.7
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.042
N
LIST_S2
Benign
0.073
T;T
MetaRNN
Benign
9.0e-7
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-1.3
.;N
PrimateAI
Benign
0.28
T
PROVEAN
Benign
1.9
.;N
REVEL
Benign
0.0060
Sift
Benign
0.42
.;T
Sift4G
Benign
0.32
T;T
Polyphen
0.0
.;B
Vest4
0.017
MPC
0.21
ClinPred
0.0022
T
GERP RS
-2.6
Varity_R
0.043
gMVP
0.069

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: rs941920; hg19: chr14-91739081; API