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GeneBe

18-32938064-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001105528.4(CCDC178):c.2551A>G(p.Ile851Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,613,648 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

CCDC178
NM_001105528.4 missense

Scores

1
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.591
Variant links:
Genes affected
CCDC178 (HGNC:29588): (coiled-coil domain containing 178) Located in ciliary basal body. [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 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.09352401).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CCDC178NM_001105528.4 linkuse as main transcriptc.2551A>G p.Ile851Val missense_variant 23/23 ENST00000383096.8
LOC105372059XR_935365.3 linkuse as main transcript upstream_gene_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CCDC178ENST00000383096.8 linkuse as main transcriptc.2551A>G p.Ile851Val missense_variant 23/235 NM_001105528.4 A2Q5BJE1-1
ENST00000580366.1 linkuse as main transcriptn.238T>C non_coding_transcript_exon_variant 3/33

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152164
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251162
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135736
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:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461484
Hom.:
0
Cov.:
29
AF XY:
0.00000413
AC XY:
3
AN XY:
727072
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:
0.0000187
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152164
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74324
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756

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 GeneticsDec 07, 2021The c.2551A>G (p.I851V) alteration is located in exon 22 (coding exon 21) of the CCDC178 gene. This alteration results from a A to G substitution at nucleotide position 2551, causing the isoleucine (I) at amino acid position 851 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
0.20
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.47
Cadd
Benign
18
Dann
Benign
0.81
Eigen
Benign
0.10
Eigen_PC
Benign
0.16
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Benign
0.69
T;T;T;.;T;T;T;.
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.094
T;T;T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
N;N;N;N;N;N;N;N
PrimateAI
Benign
0.41
T
Sift4G
Benign
0.14
T;T;T;T;T;T;T;T
Polyphen
0.75
.;P;.;P;P;.;P;P
Vest4
0.13
MutPred
0.22
.;.;.;.;.;.;Gain of disorder (P = 0.1561);Gain of disorder (P = 0.1561);
MVP
0.088
MPC
0.038
ClinPred
0.37
T
GERP RS
3.3
Varity_R
0.15
gMVP
0.046

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: rs1440559611; hg19: chr18-30518028; API