Variant 11-2884859-C-T 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.598G>A(p.Ala200Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000721 in 138,768 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 0.0000072 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000023 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

CDKN1C
NM_001122630.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.802

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:

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=0.10417259).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CDKN1C	NM_001122630.2 linkuse as main transcript	c.598G>A	p.Ala200Thr	missense_variant	2/4	ENST00000440480.8	NP_001116102.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDKN1C	ENST00000440480.8 linkuse as main transcript	c.598G>A	p.Ala200Thr	missense_variant	2/4	1	NM_001122630.2	ENSP00000411257	A2	P49918-2

Frequencies

GnomAD3 genomes

AF:

0.00000721

AC:

AN:

138768

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000263

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

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000225

AC:

AN:

887678

Hom.:

Cov.:

AF XY:

0.00000239

AC XY:

AN XY:

418132

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:

0.0000559

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000128

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000721

AC:

AN:

138768

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

67600

show subpopulations

Gnomad4 AFR

AF:

0.0000263

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:

0.0000843

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Beckwith-Wiedemann syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 14, 2020

In summary, this variant is a novel missense change with uncertain impact on protein function. It has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). While this variant is not present in population databases, the frequency information is unreliable, as metrics indicate poor data quality at this position in the ExAC database. This variant has not been reported in the literature in individuals with a CDKN1C-related disease. This sequence change replaces alanine with threonine at codon 211 of the CDKN1C protein (p.Ala211Thr). The alanine residue is weakly conserved and there is a small physicochemical difference between alanine and threonine. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.095

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.58

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.043

T;T;.

Eigen

Benign

-0.85

Eigen_PC

Benign

-0.98

FATHMM_MKL

Benign

0.030

LIST_S2

Uncertain

0.90

.;D;D

M_CAP

Benign

0.059

MetaRNN

Benign

0.10

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.81

L;L;.

MutationTaster

Benign

1.0

N;N;N;N;N

PrimateAI

Uncertain

0.72

PROVEAN

Benign

-0.17

N;N;N

REVEL

Benign

0.065

Sift

Benign

0.15

T;T;T

Sift4G

Uncertain

0.024

D;D;D

Polyphen

0.89

P;P;.

Vest4

0.10

MutPred

0.28

Gain of glycosylation at A211 (P = 0);Gain of glycosylation at A211 (P = 0);.;

MVP

0.58

MPC

1.2

ClinPred

0.13

GERP RS

-0.36

Varity_R

0.051

gMVP

0.054

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