Variant 11-2884966-ACCGCGACCGGAGCCGCGACCGGAG-ACCGCGACCGGAGCCGCGACCGGAGCCGCGACCGGAG details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBS1BS2

The NM_001122630.2(CDKN1C):c.479_490dupCTCCGGTCGCGG(p.Ala160_Ala163dup) variant causes a conservative inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000794 in 982,068 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00034 ( 0 hom., cov: 26)

Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

CDKN1C
NM_001122630.2 conservative_inframe_insertion

Scores

Not classified

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -0.200

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:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP6

Variant 11-2884966-A-ACCGCGACCGGAG is Benign according to our data. Variant chr11-2884966-A-ACCGCGACCGGAG is described in ClinVar as [Likely_benign]. Clinvar id is 454008.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000344 (47/136524) while in subpopulation AMR AF= 0.00175 (25/14258). AF 95% confidence interval is 0.00122. There are 0 homozygotes in gnomad4. There are 27 alleles in male gnomad4 subpopulation. Median coverage is 26. This position pass quality control queck.

BS2

High AC in GnomAd4 at 47 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CDKN1C	NM_001122630.2 link	c.479_490dupCTCCGGTCGCGG	p.Ala160_Ala163dup	conservative_inframe_insertion	2/4	ENST00000440480.8	NP_001116102.1	P49918-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDKN1C	ENST00000440480.8 link	c.479_490dupCTCCGGTCGCGG	p.Ala160_Ala163dup	conservative_inframe_insertion	2/4	1	NM_001122630.2	ENSP00000411257.2		P49918-2

Frequencies

GnomAD3 genomes

AF:

0.000344

AC:

AN:

136444

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000450

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00176

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000224

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00376

Gnomad NFE

AF:

0.0000472

Gnomad OTH

AF:

0.000527

GnomAD4 exome

AF:

0.0000367

AC:

AN:

845544

Hom.:

Cov.:

AF XY:

0.0000346

AC XY:

AN XY:

404060

show subpopulations

Gnomad4 AFR exome

AF:

0.000112

Gnomad4 AMR exome

AF:

0.00119

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000468

Gnomad4 SAS exome

AF:

0.0000610

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000224

Gnomad4 OTH exome

AF:

0.0000876

GnomAD4 genome

AF:

0.000344

AC:

AN:

136524

Hom.:

Cov.:

AF XY:

0.000407

AC XY:

AN XY:

66388

show subpopulations

Gnomad4 AFR

AF:

0.000449

Gnomad4 AMR

AF:

0.00175

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000225

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000472

Gnomad4 OTH

AF:

0.000523

ClinVar

Significance: Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Beckwith-Wiedemann syndrome

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Feb 01, 2025	- -
Likely benign, criteria provided, single submitter	curation	Sema4, Sema4	Jan 13, 2021	- -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 18, 2022

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

CDKN1C-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Sep 17, 2024

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

Likely benign, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Mar 01, 2024

CDKN1C: BS1 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

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