rs377216794

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001122630.2(CDKN1C):​c.876C>T​(p.Gly292Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000101 in 1,555,004 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

CDKN1C
NM_001122630.2 synonymous

Scores

1
2
14

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.323

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.06325489).
BP6
Variant 11-2884046-G-A is Benign according to our data. Variant chr11-2884046-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 524713.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.323 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.0000789 (12/152156) while in subpopulation NFE AF = 0.000147 (10/68006). AF 95% confidence interval is 0.0000791. There are 0 homozygotes in GnomAd4. There are 3 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High AC in GnomAd4 at 12 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CDKN1CNM_001122630.2 linkc.876C>T p.Gly292Gly 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
CDKN1CENST00000440480.8 linkc.876C>T p.Gly292Gly synonymous_variant Exon 3 of 4 1 NM_001122630.2 ENSP00000411257.2 P49918-2

Frequencies

GnomAD3 genomes
AF:
0.0000789
AC:
12
AN:
152156
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000450
AC:
7
AN:
155580
AF XY:
0.0000474
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000116
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000103
AC:
145
AN:
1402848
Hom.:
0
Cov.:
32
AF XY:
0.0000981
AC XY:
68
AN XY:
692846
show subpopulations
African (AFR)
AF:
0.0000631
AC:
2
AN:
31690
American (AMR)
AF:
0.00
AC:
0
AN:
36844
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25162
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36616
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79948
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
47082
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5358
European-Non Finnish (NFE)
AF:
0.000118
AC:
128
AN:
1082070
Other (OTH)
AF:
0.000258
AC:
15
AN:
58078
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
8
17
25
34
42
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000789
AC:
12
AN:
152156
Hom.:
0
Cov.:
33
AF XY:
0.0000404
AC XY:
3
AN XY:
74328
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41452
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000147
AC:
10
AN:
68006
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000901
Hom.:
0
Bravo
AF:
0.0000567
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000121
AC:
1
ExAC
AF:
0.0000624
AC:
7

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Beckwith-Wiedemann syndrome Benign:1
Oct 07, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

CDKN1C-related disorder Benign:1
May 30, 2019
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not provided Benign:1
Oct 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

CDKN1C: PP2, BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Uncertain
0.080
D
BayesDel_noAF
Benign
-0.12
CADD
Benign
5.4
DANN
Benign
0.91
DEOGEN2
Benign
0.0097
T;.
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.8
FATHMM_MKL
Benign
0.10
N
LIST_S2
Benign
0.39
.;T
M_CAP
Pathogenic
0.49
D
MetaRNN
Benign
0.063
T;T
MetaSVM
Benign
-0.81
T
PhyloP100
-0.32
PROVEAN
Benign
-0.37
N;.
REVEL
Uncertain
0.30
Sift
Benign
0.49
T;.
Sift4G
Benign
1.0
T;.
Polyphen
0.60
P;.
Vest4
0.13
MVP
0.61
ClinPred
0.029
T
GERP RS
-5.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Mutation Taster
=99/1
polymorphism

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

Other links and lift over

dbSNP: rs377216794; hg19: chr11-2905276; COSMIC: COSV106432173; API