Genetic Variant CCNP:p.Val168Met (chr19-40224499-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_024877.4(CCNP):c.502G>A(p.Val168Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000929 in 1,614,014 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V168A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

CCNP
NM_024877.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.79

Variant links:

Genes affected

CCNP (HGNC:25805): (cyclin P) Predicted to enable cyclin-dependent protein serine/threonine kinase regulator activity. Predicted to be involved in mitotic cell cycle phase transition and regulation of cyclin-dependent protein serine/threonine kinase activity. Located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

CCNP links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2061283).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCNP	NM_024877.4 link	c.502G>A	p.Val168Met	missense_variant	Exon 3 of 5	ENST00000430325.7	NP_079153.2	Q9H8S5-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CCNP	ENST00000430325.7 link	c.502G>A	p.Val168Met	missense_variant	Exon 3 of 5	2	NM_024877.4	ENSP00000396755.2	Q9H8S5-1
CCNP	ENST00000599263.6 link	c.502G>A	p.Val168Met	missense_variant	Exon 3 of 6	5		ENSP00000470643.2	M0QZM5
CCNP	ENST00000513948.1 link	c.184G>A	p.Val62Met	missense_variant	Exon 2 of 4	2		ENSP00000425529.1	D6RCS3
CCNP	ENST00000221818.5 link	n.412G>A		non_coding_transcript_exon_variant	Exon 2 of 4	2		ENSP00000221818.1	Q9H8S5-2

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251236

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135784

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000821

AC:

AN:

1461808

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727208

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000989

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74362

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.00000756

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 15, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.502G>A (p.V168M) alteration is located in exon 3 (coding exon 3) of the CNTD2 gene. This alteration results from a G to A substitution at nucleotide position 502, causing the valine (V) at amino acid position 168 to be replaced by a methionine (M). 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

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.50

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0033

T;.;.

Eigen

Uncertain

0.31

Eigen_PC

Uncertain

0.30

FATHMM_MKL

Benign

0.41

LIST_S2

Benign

0.77

T;T;T

M_CAP

Benign

0.0058

MetaRNN

Benign

0.21

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.52

N;.;.

PrimateAI

Uncertain

0.73

PROVEAN

Benign

-0.23

N;.;N

REVEL

Benign

0.10

Sift

Benign

0.19

T;.;T

Sift4G

Benign

0.13

T;.;T

Vest4

0.55

MVP

0.60

MPC

1.6

ClinPred

0.58

GERP RS

3.8

Varity_R

0.043

gMVP

0.031

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over