rs771028975

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_001080414.4(CCDC88C):​c.6035C>T​(p.Pro2012Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000174 in 1,611,428 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. P2012P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

CCDC88C
NM_001080414.4 missense

Scores

2
8
8

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 9.42

Publications

0 publications found
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]
CCDC88C Gene-Disease associations (from GenCC):
  • hydrocephalus, nonsyndromic, autosomal recessive 1
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp
  • spinocerebellar ataxia type 40
    Inheritance: AD Classification: MODERATE, SUPPORTIVE, LIMITED Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.34713933).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001080414.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CCDC88C
NM_001080414.4
MANE Select
c.6035C>Tp.Pro2012Leu
missense
Exon 30 of 30NP_001073883.2Q9P219-1
CCDC88C
NR_189158.1
n.6312C>T
non_coding_transcript_exon
Exon 31 of 31
CCDC88C
NR_189159.1
n.6607C>T
non_coding_transcript_exon
Exon 31 of 31

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CCDC88C
ENST00000389857.11
TSL:5 MANE Select
c.6035C>Tp.Pro2012Leu
missense
Exon 30 of 30ENSP00000374507.6Q9P219-1
CCDC88C
ENST00000556726.5
TSL:5
c.*1869C>T
3_prime_UTR
Exon 7 of 7ENSP00000452406.1H0YJX5

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152192
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000413
AC:
10
AN:
242324
AF XY:
0.0000377
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000581
Gnomad ASJ exome
AF:
0.000303
Gnomad EAS exome
AF:
0.000112
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000184
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000164
AC:
24
AN:
1459236
Hom.:
0
Cov.:
29
AF XY:
0.0000165
AC XY:
12
AN XY:
725960
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33474
American (AMR)
AF:
0.0000447
AC:
2
AN:
44696
Ashkenazi Jewish (ASJ)
AF:
0.000153
AC:
4
AN:
26132
East Asian (EAS)
AF:
0.0000756
AC:
3
AN:
39700
South Asian (SAS)
AF:
0.0000696
AC:
6
AN:
86210
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51276
Middle Eastern (MID)
AF:
0.000179
AC:
1
AN:
5594
European-Non Finnish (NFE)
AF:
0.00000720
AC:
8
AN:
1111836
Other (OTH)
AF:
0.00
AC:
0
AN:
60318
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152192
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74338
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41456
American (AMR)
AF:
0.0000655
AC:
1
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000676
Hom.:
0
Bravo
AF:
0.0000416
ExAC
AF:
0.0000667
AC:
8
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
CCDC88C-related disorder (1)
-
1
-
Inborn genetic diseases (1)
-
1
-
Spinocerebellar ataxia type 40 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.32
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.26
T
Eigen
Uncertain
0.34
Eigen_PC
Uncertain
0.28
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.75
T
M_CAP
Uncertain
0.13
D
MetaRNN
Benign
0.35
T
MetaSVM
Benign
-0.40
T
MutationAssessor
Pathogenic
2.9
M
PhyloP100
9.4
PrimateAI
Uncertain
0.59
T
PROVEAN
Pathogenic
-4.7
D
REVEL
Uncertain
0.33
Sift
Benign
0.068
T
Sift4G
Uncertain
0.0080
D
Polyphen
1.0
D
Vest4
0.67
MutPred
0.21
Gain of solvent accessibility (P = 0.0471)
MVP
0.60
MPC
0.58
ClinPred
0.84
D
GERP RS
4.1
Varity_R
0.15
gMVP
0.37
Mutation Taster
=78/22
polymorphism

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

Other links and lift over

dbSNP: rs771028975; hg19: chr14-91739021; COSMIC: COSV105892220; COSMIC: COSV105892220; API
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.