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GeneBe

11-2884788-G-C

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_001122630.2(CDKN1C):c.669C>G(p.Gly223=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000327 in 1,487,316 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). Synonymous variant affecting the same amino acid position (i.e. G223G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00034 ( 0 hom. )

Consequence

CDKN1C
NM_001122630.2 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 0.555
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 -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.58).
BP6
Variant 11-2884788-G-C is Benign according to our data. Variant chr11-2884788-G-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 454024.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.
BP7
Synonymous conserved (PhyloP=0.555 with no splicing effect.
BS2
High AC in GnomAd at 26 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CDKN1CNM_001122630.2 linkuse as main transcriptc.669C>G p.Gly223= synonymous_variant 2/4 ENST00000440480.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CDKN1CENST00000440480.8 linkuse as main transcriptc.669C>G p.Gly223= synonymous_variant 2/41 NM_001122630.2 A2P49918-2

Frequencies

GnomAD3 genomes
AF:
0.000173
AC:
26
AN:
150648
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000971
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:
0.000325
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000184
AC:
27
AN:
146678
Hom.:
0
AF XY:
0.000202
AC XY:
17
AN XY:
84332
show subpopulations
Gnomad AFR exome
AF:
0.000177
Gnomad AMR exome
AF:
0.0000821
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000346
Gnomad OTH exome
AF:
0.000290
GnomAD4 exome
AF:
0.000344
AC:
460
AN:
1336562
Hom.:
0
Cov.:
31
AF XY:
0.000319
AC XY:
212
AN XY:
663978
show subpopulations
Gnomad4 AFR exome
AF:
0.0000362
Gnomad4 AMR exome
AF:
0.0000871
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:
0.000423
Gnomad4 OTH exome
AF:
0.000204
GnomAD4 genome
AF:
0.000172
AC:
26
AN:
150754
Hom.:
0
Cov.:
33
AF XY:
0.000163
AC XY:
12
AN XY:
73696
show subpopulations
Gnomad4 AFR
AF:
0.0000968
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:
0.000325
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000277
Hom.:
0
Bravo
AF:
0.000113

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Aug 17, 2017- -
Beckwith-Wiedemann syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJan 15, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.58
Cadd
Benign
12
Dann
Benign
0.95

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: rs546016935; hg19: chr11-2906018; API