Genetic Variant CDKN1C:p.Pro281Pro (chr11-2884079-G-T) – ACMG Classification: Likely_benign (-1 pts)

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP7

The NM_001122630.2(CDKN1C):c.843C>A(p.Pro281Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. P281P) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

CDKN1C
NM_001122630.2 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.252

Publications

0 publications found

Variant links:

Genes affected

CDKN1C (HGNC:1786): (cyclin dependent kinase inhibitor 1C) This gene is imprinted, with preferential expression of the maternal allele. The encoded protein is a tight-binding, strong inhibitor of several G1 cyclin/Cdk complexes and a negative regulator of cell proliferation. Mutations in this gene are implicated in sporadic cancers and Beckwith-Wiedemann syndorome, suggesting that this gene is a tumor suppressor candidate. Three transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Oct 2010]

CDKN1C Gene-Disease associations (from GenCC):

Beckwith-Wiedemann syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
IMAGe syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Illumina, G2P, Ambry Genetics
rhabdomyosarcoma
Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
Beckwith-Wiedemann syndrome due to CDKN1C mutation
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
intrauterine growth restriction-short stature-early adult-onset diabetes syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Silver-Russell syndrome
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

CDKN1C links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.17045388).

BP7

Synonymous conserved (PhyloP=-0.252 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDKN1C	NM_001122630.2 link	c.843C>A	p.Pro281Pro	synonymous_variant	Exon 3 of 4	ENST00000440480.8	NP_001116102.1	P49918-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CDKN1C	ENST00000440480.8 link	c.843C>A	p.Pro281Pro	synonymous_variant	Exon 3 of 4	1	NM_001122630.2	ENSP00000411257.2		P49918-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00

AC:

AN:

149780

AF XY:

0.00

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1396268

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

689174

African (AFR)

AF:

0.00

AC:

AN:

30956

American (AMR)

AF:

0.00

AC:

AN:

36272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25020

East Asian (EAS)

AF:

0.00

AC:

AN:

36070

South Asian (SAS)

AF:

0.00

AC:

AN:

79308

European-Finnish (FIN)

AF:

0.00

AC:

AN:

46804

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4840

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1079240

Other (OTH)

AF:

0.00

AC:

AN:

57758

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000928

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Uncertain

0.15

BayesDel_noAF

Uncertain

-0.020

CADD

Benign

5.6

(source)

DANN

Benign

0.89

DEOGEN2

Benign

0.025

T;.

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.12

LIST_S2

Benign

0.37

.;T

M_CAP

Pathogenic

0.61

MetaRNN

Benign

0.17

T;T

MetaSVM

Benign

-0.75

PhyloP100

-0.25

PROVEAN

Benign

-1.6

N;.

REVEL

Benign

0.14

Sift

Pathogenic

0.0

D;.

Sift4G

Benign

0.19

T;.

Polyphen

0.14

B;.

Vest4

0.18

MutPred

0.39

Loss of loop (P = 2e-04);Loss of loop (P = 2e-04);

MVP

0.38

ClinPred

0.067

GERP RS

-3.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Mutation Taster

=88/12

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over