rs757091712

Variant names:

• chr11-2883979-C-CA
• rs757091712
• NM_001122630.2:c.*5+19_*5+20insT

Your query was ambiguous. Multiple possible variants found:

• chr11-2883979-C-CA
• chr11-2883979-C-CG
• chr11-2883979-C-CT

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BS1 BS2

The NM_001122630.2(CDKN1C):​c.*5+19_*5+20insT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000794 in 1,562,174 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.000039 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000084 (0 hom.)
• Consequence: CDKN1C NM_001122630.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0170
• Publications: 0 publications found

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: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
• IMAGe syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Illumina, Orphanet, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
• 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

ACMG classification

Our verdict: Benign. The variant received -8 ACMG points.

• BS1: Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.0000395 (6/151982) while in subpopulation NFE AF = 0.0000883 (6/67942). AF 95% confidence interval is 0.0000377. There are 0 homozygotes in GnomAd4. There are 2 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
• BS2: High AC in GnomAd4 at 6 AD gene.

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.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDKN1C	NM_001122630.2	MANE Select	c.*5+19_*5+20insT		intron	N/A	NP_001116102.1	P49918-2
	CDKN1C	NM_000076.2		c.*5+19_*5+20insT		intron	N/A	NP_000067.1	P49918-1
	CDKN1C	NM_001362474.2		c.*5+19_*5+20insT		intron	N/A	NP_001349403.1	P49918-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDKN1C	ENST00000440480.8	TSL:1 MANE Select	c.*5+19_*5+20insT		intron	N/A	ENSP00000411257.2	P49918-2
	CDKN1C	ENST00000414822.8	TSL:1	c.*5+19_*5+20insT		intron	N/A	ENSP00000413720.3	P49918-1
	CDKN1C	ENST00000430149.3	TSL:1	c.*5+19_*5+20insT		intron	N/A	ENSP00000411552.2	P49918-1

Frequencies

GnomAD3 genomes AF: 0.0000395 AC: 6 AN: 151982 Hom.: 0 Cov.: 33

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: 0.0000883

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000619 AC: 1 AN: 161678 AF XY: 0.0000113

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: 0.0000156

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000837 AC: 118 AN: 1410192 Hom.: 0 Cov.: 32 AF XY: 0.0000933 AC XY: 65 AN XY: 697032

African (AFR) AF: 0.00 AC: 0 AN: 32398

American (AMR) AF: 0.0000529 AC: 2 AN: 37832

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25260

East Asian (EAS) AF: 0.00 AC: 0 AN: 37062

South Asian (SAS) AF: 0.00 AC: 0 AN: 80638

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 46602

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5680

European-Non Finnish (NFE) AF: 0.000103 AC: 112 AN: 1086322

Other (OTH) AF: 0.0000685 AC: 4 AN: 58398

GnomAD4 genome AF: 0.0000395 AC: 6 AN: 151982 Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2 AN XY: 74236

African (AFR) AF: 0.00 AC: 0 AN: 41414

American (AMR) AF: 0.00 AC: 0 AN: 15274

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5158

South Asian (SAS) AF: 0.00 AC: 0 AN: 4816

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10586

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000883 AC: 6 AN: 67942

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000453

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		-0.017

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

Other links and lift over

dbSNP: rs757091712; hg19: chr11-2905209;