chr3-56566615-A-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001141947.3(CCDC66):ā€‹c.566A>Gā€‹(p.Asn189Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000126 in 1,430,364 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.000013 ( 0 hom. )

Consequence

CCDC66
NM_001141947.3 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.219
Variant links:
Genes affected
CCDC66 (HGNC:27709): (coiled-coil domain containing 66) Enables microtubule binding activity. Involved in cilium assembly; microtubule bundle formation; and regulation of protein localization to cilium. Located in several cellular components, including Flemming body; microtubule cytoskeleton; and photoreceptor inner segment. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.050973654).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CCDC66NM_001141947.3 linkuse as main transcriptc.566A>G p.Asn189Ser missense_variant 5/18 ENST00000394672.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CCDC66ENST00000394672.8 linkuse as main transcriptc.566A>G p.Asn189Ser missense_variant 5/181 NM_001141947.3 A2A2RUB6-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000442
AC:
11
AN:
249128
Hom.:
0
AF XY:
0.0000445
AC XY:
6
AN XY:
134880
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:
0.000366
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000126
AC:
18
AN:
1430364
Hom.:
0
Cov.:
28
AF XY:
0.0000140
AC XY:
10
AN XY:
713494
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:
0.000188
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000337
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.0000412
AC:
5

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 GeneticsJan 04, 2024The c.566A>G (p.N189S) alteration is located in exon 5 (coding exon 5) of the CCDC66 gene. This alteration results from a A to G substitution at nucleotide position 566, causing the asparagine (N) at amino acid position 189 to be replaced by a serine (S). 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
0.088
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
8.2
DANN
Benign
0.35
DEOGEN2
Benign
0.027
T;T;.
Eigen
Benign
-0.83
Eigen_PC
Benign
-0.79
FATHMM_MKL
Benign
0.15
N
LIST_S2
Benign
0.76
T;T;T
M_CAP
Uncertain
0.14
D
MetaRNN
Benign
0.051
T;T;T
MetaSVM
Uncertain
0.64
D
MutationAssessor
Benign
2.0
.;M;.
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-1.4
N;N;N
REVEL
Uncertain
0.29
Sift
Benign
0.58
T;T;T
Sift4G
Benign
0.79
T;T;T
Polyphen
0.018
.;B;.
Vest4
0.072, 0.075
MutPred
0.19
Gain of phosphorylation at N189 (P = 0.0582);Gain of phosphorylation at N189 (P = 0.0582);.;
MVP
0.41
MPC
0.016
ClinPred
0.034
T
GERP RS
0.23
Varity_R
0.019
gMVP
0.084

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: rs374227528; hg19: chr3-56600643; API