1-50974241-G-A

Position:

chr1-50974241-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_078626.3(CDKN2C):c.478G>A(p.Gly160Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000893 in 1,568,202 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000064 ( 0 hom. )

Consequence

CDKN2C
NM_078626.3 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.185

Variant links:

Genes affected

CDKN2C (HGNC:1789): (cyclin dependent kinase inhibitor 2C) The protein encoded by this gene is a member of the INK4 family of cyclin-dependent kinase inhibitors. This protein has been shown to interact with CDK4 or CDK6, and prevent the activation of the CDK kinases, thus function as a cell growth regulator that controls cell cycle G1 progression. Ectopic expression of this gene was shown to suppress the growth of human cells in a manner that appears to correlate with the presence of a wild-type RB1 function. Studies in the knockout mice suggested the roles of this gene in regulating spermatogenesis, as well as in suppressing tumorigenesis. Two alternatively spliced transcript variants of this gene, which encode an identical protein, have been reported. [provided by RefSeq, Jul 2008]

CDKN2C links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.16448286).

BP6

Variant 1-50974241-G-A is Benign according to our data. Variant chr1-50974241-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3141670.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CDKN2C	NM_078626.3 linkuse as main transcript	c.478G>A	p.Gly160Arg	missense_variant	2/2	ENST00000371761.4
CDKN2C	NM_001262.3 linkuse as main transcript	c.478G>A	p.Gly160Arg	missense_variant	3/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
CDKN2C	ENST00000371761.4 linkuse as main transcript	c.478G>A	p.Gly160Arg	missense_variant	2/2	1	NM_078626.3	P1
CDKN2C	ENST00000396148.2 linkuse as main transcript	c.478G>A	p.Gly160Arg	missense_variant	3/3	1		P1
CDKN2C	ENST00000262662.5 linkuse as main transcript	c.478G>A	p.Gly160Arg	missense_variant	4/4	2		P1

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152158

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

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

GnomAD4 exome

AF:

0.00000636

AC:

AN:

1416044

Hom.:

Cov.:

AF XY:

0.00000286

AC XY:

AN XY:

699106

show subpopulations

Gnomad4 AFR exome

AF:

0.0000313

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000735

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152158

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74336

show subpopulations

Gnomad4 AFR

AF:

0.000121

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000331

Hom.:

Bravo

AF:

0.0000340

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 12, 2023

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.50

CADD

Benign

DANN

Benign

0.67

DEOGEN2

Benign

0.30

T;T;T

Eigen

Benign

-0.46

Eigen_PC

Benign

-0.28

FATHMM_MKL

Benign

0.19

M_CAP

Benign

0.016

MetaRNN

Benign

0.16

T;T;T

MetaSVM

Benign

-0.77

MutationAssessor

Benign

-0.34

N;N;N

MutationTaster

Benign

0.57

N;N;N

PrimateAI

Benign

0.26

PROVEAN

Benign

-0.31

N;N;N

REVEL

Benign

0.16

Sift

Benign

0.20

T;T;T

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

0.0

B;B;B

Vest4

0.17

MutPred

0.62

Gain of MoRF binding (P = 0.0261);Gain of MoRF binding (P = 0.0261);Gain of MoRF binding (P = 0.0261);

MVP

0.84

MPC

0.53

ClinPred

0.16

GERP RS

2.8

Varity_R

0.20

gMVP

0.56

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