rs73336474

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BA1

The NM_001080414.4(CCDC88C):​c.3393G>T​(p.Ala1131=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0033 in 1,608,956 control chromosomes in the GnomAD database, including 139 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.018 ( 75 hom., cov: 33)
Exomes 𝑓: 0.0018 ( 64 hom. )

Consequence

CCDC88C
NM_001080414.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -2.73
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.44).
BP6
Variant 14-91303943-C-A is Benign according to our data. Variant chr14-91303943-C-A is described in ClinVar as [Benign]. Clinvar id is 158108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-2.73 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0594 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CCDC88CNM_001080414.4 linkuse as main transcriptc.3393G>T p.Ala1131= synonymous_variant 20/30 ENST00000389857.11 NP_001073883.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CCDC88CENST00000389857.11 linkuse as main transcriptc.3393G>T p.Ala1131= synonymous_variant 20/305 NM_001080414.4 ENSP00000374507 P1Q9P219-1

Frequencies

GnomAD3 genomes
AF:
0.0177
AC:
2699
AN:
152218
Hom.:
75
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0615
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00693
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000620
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000147
Gnomad OTH
AF:
0.0148
GnomAD3 exomes
AF:
0.00447
AC:
1095
AN:
245204
Hom.:
30
AF XY:
0.00329
AC XY:
439
AN XY:
133466
show subpopulations
Gnomad AFR exome
AF:
0.0620
Gnomad AMR exome
AF:
0.00310
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000134
Gnomad OTH exome
AF:
0.00233
GnomAD4 exome
AF:
0.00179
AC:
2609
AN:
1456622
Hom.:
64
Cov.:
33
AF XY:
0.00152
AC XY:
1098
AN XY:
724734
show subpopulations
Gnomad4 AFR exome
AF:
0.0623
Gnomad4 AMR exome
AF:
0.00347
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000114
Gnomad4 OTH exome
AF:
0.00380
GnomAD4 genome
AF:
0.0177
AC:
2700
AN:
152334
Hom.:
75
Cov.:
33
AF XY:
0.0168
AC XY:
1255
AN XY:
74496
show subpopulations
Gnomad4 AFR
AF:
0.0614
Gnomad4 AMR
AF:
0.00693
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000147
Gnomad4 OTH
AF:
0.0147
Alfa
AF:
0.00566
Hom.:
12
Bravo
AF:
0.0193
Asia WGS
AF:
0.00375
AC:
14
AN:
3478
EpiCase
AF:
0.000218
EpiControl
AF:
0.000296

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -
Benign, criteria provided, single submitterclinical testingGeneDxMay 05, 2021- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoApr 08, 2013- -
CCDC88C-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJun 19, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.44
CADD
Benign
0.059
DANN
Benign
0.71

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: rs73336474; hg19: chr14-91770287; API