rs587779732

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001378615.1(CC2D2A):​c.4407C>A​(p.Ser1469Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000582 in 1,547,426 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Synonymous variant affecting the same amino acid position (i.e. S1469S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000050 ( 0 hom. )

Consequence

CC2D2A
NM_001378615.1 missense

Scores

4
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.23

Publications

2 publications found
Variant links:
Genes affected
CC2D2A (HGNC:29253): (coiled-coil and C2 domain containing 2A) This gene encodes a coiled-coil and calcium binding domain protein that appears to play a critical role in cilia formation. Mutations in this gene cause Meckel syndrome type 6, as well as Joubert syndrome type 9. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2009]
CC2D2A Gene-Disease associations (from GenCC):
  • ciliopathy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • Joubert syndrome 9
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, G2P
  • retinitis pigmentosa 93
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • COACH syndrome 1
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • Joubert syndrome with oculorenal defect
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • Meckel syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.22593799).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001378615.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CC2D2A
NM_001378615.1
MANE Select
c.4407C>Ap.Ser1469Arg
missense
Exon 34 of 37NP_001365544.1
CC2D2A
NM_001080522.2
c.4407C>Ap.Ser1469Arg
missense
Exon 35 of 38NP_001073991.2
CC2D2A
NM_001378617.1
c.4260C>Ap.Ser1420Arg
missense
Exon 32 of 35NP_001365546.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CC2D2A
ENST00000424120.6
TSL:5 MANE Select
c.4407C>Ap.Ser1469Arg
missense
Exon 34 of 37ENSP00000403465.1
CC2D2A
ENST00000503292.6
TSL:1
c.4407C>Ap.Ser1469Arg
missense
Exon 35 of 38ENSP00000421809.1
CC2D2A
ENST00000634028.2
TSL:1
n.4201C>A
non_coding_transcript_exon
Exon 31 of 34ENSP00000488669.2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152198
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
GnomAD4 exome
AF:
0.00000502
AC:
7
AN:
1395228
Hom.:
0
Cov.:
29
AF XY:
0.00000581
AC XY:
4
AN XY:
688140
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31458
American (AMR)
AF:
0.00
AC:
0
AN:
35348
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25098
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35760
South Asian (SAS)
AF:
0.00
AC:
0
AN:
78432
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49084
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5366
European-Non Finnish (NFE)
AF:
0.00000650
AC:
7
AN:
1076870
Other (OTH)
AF:
0.00
AC:
0
AN:
57812
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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

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:
0.0000131
AC:
2
AN:
152198
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74358
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41442
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68034
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00
Hom.:
0
Bravo
AF:
0.0000189

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Joubert syndrome 9;C2676790:Meckel syndrome, type 6;C5436837:COACH syndrome 2;C5676970:Retinitis pigmentosa 93 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.22
BayesDel_addAF
Benign
-0.10
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
12
DANN
Uncertain
0.98
DEOGEN2
Benign
0.22
T
Eigen
Benign
-0.35
Eigen_PC
Benign
-0.50
FATHMM_MKL
Benign
0.15
N
LIST_S2
Benign
0.85
D
M_CAP
Benign
0.039
D
MetaRNN
Benign
0.23
T
MetaSVM
Benign
-0.48
T
MutationAssessor
Benign
1.2
L
PhyloP100
-1.2
PrimateAI
Benign
0.45
T
PROVEAN
Uncertain
-2.5
N
REVEL
Benign
0.27
Sift
Uncertain
0.0050
D
Sift4G
Uncertain
0.016
D
Polyphen
0.98
D
Vest4
0.24
MutPred
0.36
Gain of MoRF binding (P = 0.0331)
MVP
0.64
MPC
0.049
ClinPred
0.97
D
GERP RS
-3.6
Varity_R
0.32
gMVP
0.45
Mutation Taster
=55/45
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs587779732; hg19: chr4-15597800; API