rs760038657

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_001122630.2(CDKN1C):​c.730G>A​(p.Ala244Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000399 in 1,504,904 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A244V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000022 ( 0 hom. )

Consequence

CDKN1C
NM_001122630.2 missense

Scores

2
1
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.87

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: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
  • IMAGe syndrome
    Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics, Illumina
  • 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: Likely_benign. The variant received -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.26517934).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001122630.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CDKN1C
NM_001122630.2
MANE Select
c.730G>Ap.Ala244Thr
missense
Exon 2 of 4NP_001116102.1P49918-2
CDKN1C
NM_000076.2
c.763G>Ap.Ala255Thr
missense
Exon 1 of 3NP_000067.1P49918-1
CDKN1C
NM_001362474.2
c.763G>Ap.Ala255Thr
missense
Exon 1 of 3NP_001349403.1P49918-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CDKN1C
ENST00000440480.8
TSL:1 MANE Select
c.730G>Ap.Ala244Thr
missense
Exon 2 of 4ENSP00000411257.2P49918-2
CDKN1C
ENST00000414822.8
TSL:1
c.763G>Ap.Ala255Thr
missense
Exon 1 of 3ENSP00000413720.3P49918-1
CDKN1C
ENST00000430149.3
TSL:1
c.763G>Ap.Ala255Thr
missense
Exon 1 of 3ENSP00000411552.2P49918-1

Frequencies

GnomAD3 genomes
AF:
0.0000199
AC:
3
AN:
150746
Hom.:
0
Cov.:
33
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:
0.0000443
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000631
AC:
1
AN:
158454
AF XY:
0.0000109
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:
0.0000136
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000222
AC:
3
AN:
1354158
Hom.:
0
Cov.:
31
AF XY:
0.00000297
AC XY:
2
AN XY:
673850
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
27646
American (AMR)
AF:
0.00
AC:
0
AN:
34636
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
23124
East Asian (EAS)
AF:
0.00
AC:
0
AN:
31150
South Asian (SAS)
AF:
0.0000127
AC:
1
AN:
78664
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
35238
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5036
European-Non Finnish (NFE)
AF:
0.00000188
AC:
2
AN:
1063644
Other (OTH)
AF:
0.00
AC:
0
AN:
55020
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000199
AC:
3
AN:
150746
Hom.:
0
Cov.:
33
AF XY:
0.0000272
AC XY:
2
AN XY:
73652
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41014
American (AMR)
AF:
0.00
AC:
0
AN:
15170
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3464
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5052
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4800
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10264
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
308
European-Non Finnish (NFE)
AF:
0.0000443
AC:
3
AN:
67694
Other (OTH)
AF:
0.00
AC:
0
AN:
2080
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000183
AC:
2

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Beckwith-Wiedemann syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.022
T
BayesDel_noAF
Benign
-0.27
CADD
Benign
19
DANN
Uncertain
1.0
DEOGEN2
Benign
0.050
T
Eigen
Benign
-0.56
Eigen_PC
Benign
-0.69
FATHMM_MKL
Benign
0.071
N
LIST_S2
Benign
0.54
T
M_CAP
Pathogenic
0.97
D
MetaRNN
Benign
0.27
T
MetaSVM
Benign
-0.48
T
MutationAssessor
Benign
0.55
N
PhyloP100
2.9
PrimateAI
Pathogenic
0.87
D
PROVEAN
Benign
-0.50
N
REVEL
Benign
0.21
Sift
Benign
0.23
T
Sift4G
Benign
0.21
T
Polyphen
0.98
D
Vest4
0.22
MutPred
0.34
Gain of glycosylation at A255 (P = 0.0058)
MVP
0.72
MPC
1.2
ClinPred
0.44
T
GERP RS
1.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.062
gMVP
0.23
Mutation Taster
=90/10
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: rs760038657; hg19: chr11-2905957; API