Variant rs1240280374 details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_001122630.2(CDKN1C):c.676C>T(p.Pro226Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000334 in 1,496,044 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000022 ( 0 hom. )

Consequence

CDKN1C
NM_001122630.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.175

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 links:

CDKN1C (HGNC:):

CDKN1C links:

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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=0.16604286).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CDKN1C	NM_001122630.2 linkuse as main transcript	c.676C>T	p.Pro226Ser	missense_variant	2/4	ENST00000440480.8	NP_001116102.1	P49918-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDKN1C	ENST00000440480.8 linkuse as main transcript	c.676C>T	p.Pro226Ser	missense_variant	2/4	1	NM_001122630.2	ENSP00000411257.2		P49918-2

Frequencies

GnomAD3 genomes

AF:

0.0000133

AC:

AN:

150814

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:

0.0000296

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000223

AC:

AN:

1345230

Hom.:

Cov.:

AF XY:

0.00000150

AC XY:

AN XY:

668546

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000284

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000133

AC:

AN:

150814

Hom.:

Cov.:

AF XY:

0.0000136

AC XY:

AN XY:

73660

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:

0.0000296

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Beckwith-Wiedemann syndrome

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Baylor Genetics	Dec 06, 2023	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Sep 11, 2023	This variant has not been reported in the literature in individuals affected with CDKN1C-related conditions. This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 237 of the CDKN1C protein (p.Pro237Ser). This variant is not present in population databases (gnomAD no frequency). ClinVar contains an entry for this variant (Variation ID: 454027). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt CDKN1C protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.079

BayesDel_noAF

Benign

-0.35

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.069

T;T;.

Eigen

Benign

-0.71

Eigen_PC

Benign

-0.70

FATHMM_MKL

Benign

0.053

LIST_S2

Benign

0.45

.;T;T

M_CAP

Pathogenic

0.99

MetaRNN

Benign

0.17

T;T;T

MetaSVM

Benign

-0.62

MutationAssessor

Benign

0.55

N;N;.

PrimateAI

Pathogenic

0.82

PROVEAN

Benign

-1.2

N;N;N

REVEL

Benign

0.16

Sift

Benign

0.080

T;T;T

Sift4G

Benign

0.18

T;T;T

Polyphen

0.39

B;B;.

Vest4

0.090

MutPred

0.22

Loss of loop (P = 0.0022);Loss of loop (P = 0.0022);.;

MVP

0.48

MPC

1.3

ClinPred

0.14

GERP RS

1.9

Varity_R

0.089

gMVP

0.093

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