rs1064793399

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2PP3_ModeratePP5

The NM_001286577.2(C2CD3):​c.5227G>T​(p.Gly1743Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,208 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

C2CD3
NM_001286577.2 missense

Scores

10
6
3

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:1

Conservation

PhyloP100: 7.91

Publications

1 publications found
Variant links:
Genes affected
C2CD3 (HGNC:24564): (C2 domain containing 3 centriole elongation regulator) This gene encodes a protein that functions as a regulator of centriole elongation. Studies of the orthologous mouse protein show that it promotes centriolar distal appendage assembly and is also required for the recruitment of other ciliogenic proteins, including intraflagellar transport proteins. Mutations in this gene cause orofaciodigital syndrome XIV (OFD14), a ciliopathy resulting in malformations of the oral cavity, face and digits. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Nov 2014]
C2CD3 Gene-Disease associations (from GenCC):
  • orofaciodigital syndrome type 14
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.935
PP5
Variant 11-74049471-C-A is Pathogenic according to our data. Variant chr11-74049471-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 418738.We mark this variant Likely_pathogenic, oryginal submission is: [Conflicting_classifications_of_pathogenicity].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
C2CD3NM_001286577.2 linkc.5227G>T p.Gly1743Cys missense_variant Exon 27 of 33 ENST00000334126.12 NP_001273506.1 Q4AC94-5
C2CD3NM_015531.6 linkc.5227G>T p.Gly1743Cys missense_variant Exon 27 of 31 NP_056346.3 Q4AC94-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
C2CD3ENST00000334126.12 linkc.5227G>T p.Gly1743Cys missense_variant Exon 27 of 33 5 NM_001286577.2 ENSP00000334379.7 Q4AC94-5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.0000119
AC:
3
AN:
251364
AF XY:
0.0000221
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461208
Hom.:
0
Cov.:
31
AF XY:
0.00000550
AC XY:
4
AN XY:
726940
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33458
American (AMR)
AF:
0.00
AC:
0
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86212
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5262
European-Non Finnish (NFE)
AF:
0.00000270
AC:
3
AN:
1111974
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60332
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
1
2
2
3
4
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
Cov.:
32
Alfa
AF:
0.0000468
Hom.:
0

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Pathogenic:1
Apr 06, 2015
GeneDx
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The G1743C substitution in the C2CD3 gene has not been published as a pathogenic variant, nor has it been reported asa benign polymorphism to our knowledge. The G1743C variant was not observed in approximately 6500individuals of European and African American ancestry in the NHLBI Exome Sequencing Project,indicating it is not a common benign variant in these populations. The G1743C variant is a non-conservativeamino acid substitution, which is likely to impact secondary protein structure as these residues differ inpolarity, charge, size and/or other properties. This substitution occurs at a position that is conserved acrossspecies. In silico analysis predicts this variant is probably damaging to the protein structure/function. TheG1743C variant is a strong candidate for a pathogenic variant, however the possibility it may be arare benign variant cannot be excluded. -

Jeune thoracic dystrophy Uncertain:1
May 01, 2018
Rare Disease Group, Clinical Genetics, Karolinska Institutet
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:research

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.96
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.15
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.64
D;.;D
Eigen
Pathogenic
0.92
Eigen_PC
Pathogenic
0.90
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.92
D;D;D
M_CAP
Benign
0.064
D
MetaRNN
Pathogenic
0.94
D;D;D
MetaSVM
Benign
-0.44
T
MutationAssessor
Uncertain
2.5
M;M;.
PhyloP100
7.9
PrimateAI
Uncertain
0.76
T
PROVEAN
Pathogenic
-6.2
D;D;D
REVEL
Pathogenic
0.82
Sift
Pathogenic
0.0
D;D;D
Sift4G
Uncertain
0.0020
D;D;D
Polyphen
1.0
.;D;.
Vest4
0.97
MutPred
0.83
Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);.;
MVP
0.74
MPC
0.52
ClinPred
1.0
D
GERP RS
5.7
Varity_R
0.87
gMVP
0.64
Mutation Taster
=4/96
disease causing (ClinVar)

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: rs1064793399; hg19: chr11-73760516; API