Genetic Variant NM_001204450.2:c.2417A>T (chr15-55356227-T-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_001204450.2(CCPG1):c.2417A>T(p.Gln806Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000378 in 1,533,600 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 Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.000041 ( 0 hom. )

Consequence

CCPG1
NM_001204450.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.18

Publications

0 publications found

Variant links:

Genes affected

CCPG1 (HGNC:24227): (cell cycle progression 1) Involved in positive regulation of cell cycle and positive regulation of cell population proliferation. Predicted to be integral component of membrane. Predicted to be active in membrane. [provided by Alliance of Genome Resources, Apr 2022]

CCPG1 links:

DNAAF4-CCPG1 (HGNC:43019): (DNAAF4-CCPG1 readthrough (NMD candidate)) This locus represents naturally occurring read-through transcription between the neighboring dyslexia susceptibility 1 candidate 1 (DYX1C1) and cell cycle progression 1 (CCPG1) genes on chromosome 15. The read-through transcript is a candidate for nonsense-mediated mRNA decay (NMD), and is thus unlikely to produce a protein product. [provided by RefSeq, Mar 2011]

DNAAF4-CCPG1 links:

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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=0.1715877).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCPG1	NM_001204450.2 link	c.2417A>T	p.Gln806Leu	missense_variant	Exon 9 of 9	ENST00000442196.8	NP_001191379.1	Q9ULG6-5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CCPG1	ENST00000442196.8 link	c.2417A>T	p.Gln806Leu	missense_variant	Exon 9 of 9	2	NM_001204450.2	ENSP00000403400.3		Q9ULG6-5

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152222

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000148

AC:

AN:

135082

AF XY:

0.0000273

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:

0.0000364

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000405

AC:

AN:

1381378

Hom.:

Cov.:

AF XY:

0.0000455

AC XY:

AN XY:

681676

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31520

American (AMR)

AF:

0.00

AC:

AN:

34966

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25164

East Asian (EAS)

AF:

0.00

AC:

AN:

35656

South Asian (SAS)

AF:

0.00

AC:

AN:

78640

European-Finnish (FIN)

AF:

0.00

AC:

AN:

33884

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5690

European-Non Finnish (NFE)

AF:

0.0000519

AC:

AN:

1078050

Other (OTH)

AF:

0.00

AC:

AN:

57808

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152222

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74368

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41464

American (AMR)

AF:

0.00

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10632

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68034

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 12, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.2417A>T (p.Q806L) alteration is located in exon 9 (coding exon 8) of the CCPG1 gene. This alteration results from a A to T substitution at nucleotide position 2417, causing the glutamine (Q) at amino acid position 806 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.40

CADD

Benign

(source)

DANN

Uncertain

0.98

Eigen

Benign

-0.11

Eigen_PC

Benign

0.099

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.74

T;T

M_CAP

Benign

0.014

MetaRNN

Benign

0.17

T;T

MetaSVM

Benign

-1.1

PhyloP100

7.2

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-1.3

N;D

REVEL

Benign

0.15

Sift

Uncertain

0.0020

D;D

Sift4G

Uncertain

0.0060

D;D

Polyphen

0.018

.;B

Vest4

0.19

MutPred

0.21

.;Gain of stability (P = 0.025);

MVP

0.10

MPC

0.13

ClinPred

0.40

GERP RS

5.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

gMVP

0.067

Mutation Taster

=74/26

polymorphism

(source)

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

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NM_001204450.2:c.2417A>T

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