5-55233170-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_ModerateBP6_ModerateBP7BS1

The NM_021147.5(CCNO):c.354G>A(p.Pro118Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000225 in 1,546,854 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

CCNO
NM_021147.5 synonymous

Scores

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: -0.0850

Publications

0 publications found

Variant links:

Genes affected

CCNO (HGNC:18576): (cyclin O) This gene encodes a member of the cyclin protein family, and the encoded protein is involved in regulation of the cell cycle. Disruption of this gene is associated with primary ciliary dyskinesia-19. Alternative splicing results in multiple transcript variants. This gene, which has a previous symbol of UNG2, was erroneously identified as a uracil DNA glycosylase in PubMed ID: 2001396. A later publication, PubMed ID: 8419333, identified this gene's product as a cyclin protein family member. The UNG2 symbol is also used as a specific protein isoform name for the UNG gene (GeneID 7374), so confusion exists in the scientific literature and in some databases for these two genes. [provided by RefSeq, Jul 2014]

CCNO links:

CCNO-DT (HGNC:55543): (CCNO divergent transcript)

CCNO-DT links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.28).

BP6

Variant 5-55233170-C-T is Benign according to our data. Variant chr5-55233170-C-T is described in ClinVar as Benign. ClinVar VariationId is 416792.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-0.085 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00127 (193/152026) while in subpopulation AFR AF = 0.00436 (181/41488). AF 95% confidence interval is 0.00384. There are 0 homozygotes in GnomAd4. There are 82 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCNO	NM_021147.5 link	c.354G>A	p.Pro118Pro	synonymous_variant	Exon 1 of 3	ENST00000282572.5	NP_066970.3	P22674-1
CCNO	NR_125346.2 link	n.439G>A		non_coding_transcript_exon_variant	Exon 1 of 3
CCNO	NR_125347.2 link	n.439G>A		non_coding_transcript_exon_variant	Exon 1 of 3
CCNO	NR_125348.1 link	n.-179G>A		upstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CCNO	ENST00000282572.5 link	c.354G>A	p.Pro118Pro	synonymous_variant	Exon 1 of 3	1	NM_021147.5	ENSP00000282572.4	P22674-1
CCNO	ENST00000501463.2 link	n.354G>A		non_coding_transcript_exon_variant	Exon 1 of 3	1		ENSP00000422485.1	P22674-2
CCNO-DT	ENST00000749853.1 link	n.121C>T		non_coding_transcript_exon_variant	Exon 1 of 4

Frequencies

GnomAD3 genomes

AF:

0.00128

AC:

194

AN:

151908

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00440

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000721

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:

0.00

Gnomad OTH

AF:

0.000480

GnomAD2 exomes

AF:

0.000302

AC:

AN:

142586

AF XY:

0.000207

show subpopulations

Gnomad AFR exome

AF:

0.00542

Gnomad AMR exome

AF:

0.000123

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000111

AC:

155

AN:

1394828

Hom.:

Cov.:

AF XY:

0.000100

AC XY:

AN XY:

688372

show subpopulations

African (AFR)

AF:

0.00424

AC:

135

AN:

31816

American (AMR)

AF:

0.000253

AC:

AN:

35622

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25134

East Asian (EAS)

AF:

0.00

AC:

AN:

36082

South Asian (SAS)

AF:

0.00

AC:

AN:

79328

European-Finnish (FIN)

AF:

0.00

AC:

AN:

44016

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5526

European-Non Finnish (NFE)

AF:

9.26e-7

AC:

AN:

1079346

Other (OTH)

AF:

0.000173

AC:

AN:

57958

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.473

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:

0.00127

AC:

193

AN:

152026

Hom.:

Cov.:

AF XY:

0.00110

AC XY:

AN XY:

74324

show subpopulations

African (AFR)

AF:

0.00436

AC:

181

AN:

41488

American (AMR)

AF:

0.000720

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5104

South Asian (SAS)

AF:

0.00

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67944

Other (OTH)

AF:

0.000475

AC:

AN:

2106

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

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:

0.000890

Hom.:

Bravo

AF:

0.00152

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Primary ciliary dyskinesia

Benign:1

Dec 22, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

CCNO-related disorder

Benign:1

Sep 25, 2019

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.28

CADD

Benign

(source)

DANN

Benign

0.95

PhyloP100

-0.085

PromoterAI

-0.048

Neutral

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

Details are displayed if max score is > 0.2

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over