11-2884908-TGGAGCCGGGGCC-T

Position:

• chr11-2884908-TGGAGCCGGGGCC-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP6_Moderate

The ENST00000440480.8(CDKN1C):​c.537_548del​(p.Ala180_Pro183del) variant causes a inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000519 in 770,016 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. P179P) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.000017 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000031 (0 hom.)
• Consequence: CDKN1C ENST00000440480.8 inframe_deletion
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.37

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP6: Variant 11-2884908-TGGAGCCGGGGCC-T is Benign according to our data. Variant chr11-2884908-TGGAGCCGGGGCC-T is described in ClinVar as [Likely_benign]. Clinvar id is 1088193.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CDKN1C	NM_001122630.2	c.537_548del	p.Ala180_Pro183del	inframe_deletion	2/4	ENST00000440480.8	NP_001116102.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDKN1C	ENST00000440480.8	c.537_548del	p.Ala180_Pro183del	inframe_deletion	2/4	1	NM_001122630.2	ENSP00000411257	A2

Frequencies

GnomAD3 genomes AF: 0.0000171 AC: 2 AN: 116966 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000658

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: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.00000306 AC: 2 AN: 653050 Hom.: 0 AF XY: 0.00000325 AC XY: 1 AN XY: 308004

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000343

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome AF: 0.0000171 AC: 2 AN: 116966 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 57200

Gnomad4 AFR AF: 0.0000658

Gnomad4 AMR AF: 0.00

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

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Beckwith-Wiedemann syndrome Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 18, 2021

- -

Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs997267634; hg19: chr11-2906138;