11-2885412-G-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_001122630.2(CDKN1C):​c.45C>T​(p.Arg15Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000901 in 1,553,524 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000064 ( 0 hom. )

Consequence

CDKN1C
NM_001122630.2 synonymous

Scores

1
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 0.184
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.5).
BP6
Variant 11-2885412-G-A is Benign according to our data. Variant chr11-2885412-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 524736.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=2}.
BP7
Synonymous conserved (PhyloP=0.184 with no splicing effect.
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.0000328 (5/152242) while in subpopulation AMR AF= 0.000327 (5/15292). AF 95% confidence interval is 0.000129. There are 0 homozygotes in gnomad4. There are 3 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CDKN1CNM_001122630.2 linkc.45C>T p.Arg15Arg synonymous_variant 2/4 ENST00000440480.8 NP_001116102.1 P49918-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CDKN1CENST00000440480.8 linkc.45C>T p.Arg15Arg synonymous_variant 2/41 NM_001122630.2 ENSP00000411257.2 P49918-2

Frequencies

GnomAD3 genomes
AF:
0.0000328
AC:
5
AN:
152242
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
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
AF:
0.00000642
AC:
9
AN:
1401282
Hom.:
0
Cov.:
31
AF XY:
0.00000867
AC XY:
6
AN XY:
692388
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000136
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000276
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000277
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152242
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74382
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000327
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:
0.0000712
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

CDKN1C-related disorder Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesOct 12, 2022The CDKN1C c.78C>T variant is not predicted to result in an amino acid change (p.=). This variant is predicted to interfere with splicing. To our knowledge, this variant has not been reported in the literature. It was observed in 1 out of ~31390 alleles in gnomAD (https://gnomad.broadinstitute.org/variant/11-2906642-G-A). In ClinVar, this variant is interpreted as likely benign (https://preview.ncbi.nlm.nih.gov/clinvar/variation/524736/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Beckwith-Wiedemann syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 12, 2024- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenMar 01, 2024CDKN1C: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.50
CADD
Benign
12
DANN
Uncertain
0.98
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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.

Other links and lift over

dbSNP: rs1360965916; hg19: chr11-2906642; API