Genetic Variant C2CD3:p.Pro2273Pro (chr11-74028389-G-A) – ACMG Classification: Benign (-21 pts)

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001286577.2(C2CD3):c.6819C>T(p.Pro2273Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000134 in 1,535,124 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00014 ( 2 hom. )

Consequence

C2CD3
NM_001286577.2 synonymous

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.133

Publications

0 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: Labcorp Genetics (formerly Invitae), G2P, ClinGen, Orphanet

C2CD3 links:

ENSG00000298570 (HGNC:):

ENSG00000298570 links:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.77).

BP6

Variant 11-74028389-G-A is Benign according to our data. Variant chr11-74028389-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 1562489.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.133 with no splicing effect.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.0000788 (12/152282) while in subpopulation SAS AF = 0.00207 (10/4830). AF 95% confidence interval is 0.00112. There are 0 homozygotes in GnomAd4. There are 9 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

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.6819C>T	p.Pro2273Pro	synonymous	Exon 32 of 33	NP_001273506.1	Q4AC94-5

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
C2CD3	ENST00000334126.12	TSL:5 MANE Select	c.6819C>T	p.Pro2273Pro	synonymous	Exon 32 of 33	ENSP00000334379.7	Q4AC94-5
C2CD3	ENST00000680231.1		c.6819C>T	p.Pro2273Pro	synonymous	Exon 32 of 33	ENSP00000505413.1	A0A7P0Z475
C2CD3	ENST00000681143.1		c.6414C>T	p.Pro2138Pro	synonymous	Exon 29 of 30	ENSP00000505970.1	A0A7P0Z4H1

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152164

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000397

AC:

AN:

136172

AF XY:

0.000554

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000205

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000188

Gnomad OTH exome

AF:

0.000240

GnomAD4 exome

AF:

0.000140

AC:

193

AN:

1382842

Hom.:

Cov.:

AF XY:

0.000192

AC XY:

131

AN XY:

682416

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31554

American (AMR)

AF:

0.000197

AC:

AN:

35622

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25148

East Asian (EAS)

AF:

0.0000280

AC:

AN:

35726

South Asian (SAS)

AF:

0.00208

AC:

165

AN:

79172

European-Finnish (FIN)

AF:

0.00

AC:

AN:

33900

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5656

European-Non Finnish (NFE)

AF:

0.0000121

AC:

AN:

1078206

Other (OTH)

AF:

0.000121

AC:

AN:

57858

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000788

AC:

AN:

152282

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74448

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41562

American (AMR)

AF:

0.0000653

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5166

South Asian (SAS)

AF:

0.00207

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68016

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.513

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000959

Hom.:

Bravo

AF:

0.0000264

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

ClinVar submissions as Germline

Significance:Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.77

CADD

Benign

7.1

(source)

DANN

Benign

0.44

PhyloP100

0.13

Mutation Taster

=100/0

polymorphism

(source)

Splicing

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over