NM_001286577.2:c.6920A>G

Variant names:

• chr11-74028288-T-C
• rs913920515
• NM_001286577.2:c.6920A>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001286577.2(C2CD3):​c.6920A>G​(p.Gln2307Arg) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000848 in 1,533,834 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q2307P) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000087 (0 hom.)
• Consequence: C2CD3 NM_001286577.2 missense, splice_region
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.91
• Publications: 0 publications found

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, Labcorp Genetics (formerly Invitae), ClinGen, Orphanet

ENSG00000298570 (HGNC:):

ACMG classification

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=0.1902903).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001286577.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	C2CD3	NM_001286577.2	MANE Select	c.6920A>G	p.Gln2307Arg	missense splice_region	Exon 32 of 33	NP_001273506.1	Q4AC94-5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	C2CD3	ENST00000334126.12	TSL:5 MANE Select	c.6920A>G	p.Gln2307Arg	missense splice_region	Exon 32 of 33	ENSP00000334379.7	Q4AC94-5
	C2CD3	ENST00000680231.1		c.6920A>G	p.Gln2307Arg	missense splice_region	Exon 32 of 33	ENSP00000505413.1	A0A7P0Z475
	C2CD3	ENST00000681143.1		c.6515A>G	p.Gln2172Arg	missense splice_region	Exon 29 of 30	ENSP00000505970.1	A0A7P0Z4H1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152170 Hom.: 0 Cov.: 32

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.00000869 AC: 12 AN: 1381664 Hom.: 0 Cov.: 29 AF XY: 0.00000880 AC XY: 6 AN XY: 681952

African (AFR) AF: 0.00 AC: 0 AN: 31552

American (AMR) AF: 0.00 AC: 0 AN: 35672

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25152

East Asian (EAS) AF: 0.00 AC: 0 AN: 35728

South Asian (SAS) AF: 0.00 AC: 0 AN: 79166

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 34010

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5692

European-Non Finnish (NFE) AF: 0.0000102 AC: 11 AN: 1076850

Other (OTH) AF: 0.0000173 AC: 1 AN: 57842

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152170 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74342

African (AFR) AF: 0.00 AC: 0 AN: 41436

American (AMR) AF: 0.00 AC: 0 AN: 15282

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5182

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10622

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68032

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.077
BayesDel_addAF	Benign	-0.23	T
BayesDel_noAF	Benign	-0.57
CADD	Benign	19
DANN	Benign	0.96
DEOGEN2	Benign	0.027	T
Eigen	Pathogenic	0.89
Eigen_PC	Pathogenic	0.73
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Benign	0.48	T
M_CAP	Benign	0.0066	T
MetaRNN	Benign	0.19	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.2	M
PhyloP100		2.9
PROVEAN	Benign	-0.64	N
REVEL	Benign	0.071
Sift	Benign	0.29	T
Sift4G	Benign	0.43	T
Vest4		0.094
MutPred		0.11		Gain of phosphorylation at S2310 (P = 0.0682)
MVP		0.51
ClinPred		0.24	T
GERP RS		5.1
Varity_R		0.060
gMVP		0.24
Mutation Taster		=95/5	polymorphism

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs913920515; hg19: chr11-73739333;