chr11-2884782-C-T

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_001122630.2(CDKN1C):​c.675G>A​(p.Glu225=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00139 in 1,496,048 control chromosomes in the GnomAD database, including 14 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0022 ( 4 hom., cov: 33)
Exomes 𝑓: 0.0013 ( 10 hom. )

Consequence

CDKN1C
NM_001122630.2 synonymous

Scores

1
1

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.612
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.41).
BP6
Variant 11-2884782-C-T is Benign according to our data. Variant chr11-2884782-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 158190.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-2884782-C-T is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=0.612 with no splicing effect.
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.00225 (339/150912) while in subpopulation EAS AF= 0.0241 (123/5094). AF 95% confidence interval is 0.0207. There are 4 homozygotes in gnomad4. There are 188 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 339 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CDKN1CNM_001122630.2 linkuse as main transcriptc.675G>A p.Glu225= synonymous_variant 2/4 ENST00000440480.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CDKN1CENST00000440480.8 linkuse as main transcriptc.675G>A p.Glu225= synonymous_variant 2/41 NM_001122630.2 A2P49918-2

Frequencies

GnomAD3 genomes
AF:
0.00223
AC:
337
AN:
150808
Hom.:
4
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000437
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00956
Gnomad ASJ
AF:
0.00318
Gnomad EAS
AF:
0.0241
Gnomad SAS
AF:
0.000415
Gnomad FIN
AF:
0.000396
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000325
Gnomad OTH
AF:
0.00578
GnomAD3 exomes
AF:
0.00389
AC:
601
AN:
154444
Hom.:
3
AF XY:
0.00300
AC XY:
266
AN XY:
88698
show subpopulations
Gnomad AFR exome
AF:
0.000477
Gnomad AMR exome
AF:
0.0130
Gnomad ASJ exome
AF:
0.00193
Gnomad EAS exome
AF:
0.0212
Gnomad SAS exome
AF:
0.00127
Gnomad FIN exome
AF:
0.000237
Gnomad NFE exome
AF:
0.000369
Gnomad OTH exome
AF:
0.00193
GnomAD4 exome
AF:
0.00129
AC:
1736
AN:
1345136
Hom.:
10
Cov.:
31
AF XY:
0.00125
AC XY:
833
AN XY:
668542
show subpopulations
Gnomad4 AFR exome
AF:
0.000252
Gnomad4 AMR exome
AF:
0.0120
Gnomad4 ASJ exome
AF:
0.00279
Gnomad4 EAS exome
AF:
0.0268
Gnomad4 SAS exome
AF:
0.00133
Gnomad4 FIN exome
AF:
0.000488
Gnomad4 NFE exome
AF:
0.000205
Gnomad4 OTH exome
AF:
0.00164
GnomAD4 genome
AF:
0.00225
AC:
339
AN:
150912
Hom.:
4
Cov.:
33
AF XY:
0.00255
AC XY:
188
AN XY:
73784
show subpopulations
Gnomad4 AFR
AF:
0.000436
Gnomad4 AMR
AF:
0.00968
Gnomad4 ASJ
AF:
0.00318
Gnomad4 EAS
AF:
0.0241
Gnomad4 SAS
AF:
0.000416
Gnomad4 FIN
AF:
0.000396
Gnomad4 NFE
AF:
0.000325
Gnomad4 OTH
AF:
0.00572
Alfa
AF:
0.000763
Hom.:
0
Bravo
AF:
0.00307
Asia WGS
AF:
0.0120
AC:
42
AN:
3404

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3
Benign, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
Likely benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoOct 31, 2013- -
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
not provided Benign:2
Likely benign, no assertion criteria providedclinical testingLaboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)-- -
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Beckwith-Wiedemann syndrome Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.41
CADD
Benign
14
DANN
Uncertain
0.99

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: rs3741341; hg19: chr11-2906012; COSMIC: COSV57832641; COSMIC: COSV57832641; API