chr12-57750663-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_000075.4(CDK4):c.625C>T(p.Arg209Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000333 in 1,611,212 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). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R209H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00034 ( 0 hom. )

Consequence

CDK4
NM_000075.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:11B:6

Conservation

PhyloP100: 2.18

Publications

12 publications found

Variant links:

COSMIC-nc: COSV56987246

Genes affected

CDK4 (HGNC:1773): (cyclin dependent kinase 4) The protein encoded by this gene is a member of the Ser/Thr protein kinase family. This protein is highly similar to the gene products of S. cerevisiae cdc28 and S. pombe cdc2. It is a catalytic subunit of the protein kinase complex that is important for cell cycle G1 phase progression. The activity of this kinase is restricted to the G1-S phase, which is controlled by the regulatory subunits D-type cyclins and CDK inhibitor p16(INK4a). This kinase was shown to be responsible for the phosphorylation of retinoblastoma gene product (Rb). Mutations in this gene as well as in its related proteins including D-type cyclins, p16(INK4a) and Rb were all found to be associated with tumorigenesis of a variety of cancers. Multiple polyadenylation sites of this gene have been reported. [provided by RefSeq, Jul 2008]

CDK4 Gene-Disease associations (from GenCC):

melanoma, cutaneous malignant, susceptibility to, 3
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)
malignant pancreatic neoplasm
Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp

CDK4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0984101).

BP6

Variant 12-57750663-G-A is Benign according to our data. Variant chr12-57750663-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 135825.

BS2

High AC in GnomAd4 at 42 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000075.4. 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
	CDK4	NM_000075.4	MANE Select	c.625C>T	p.Arg209Cys	missense	Exon 5 of 8	NP_000066.1	P11802-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CDK4	ENST00000257904.11	TSL:1 MANE Select	c.625C>T	p.Arg209Cys	missense	Exon 5 of 8	ENSP00000257904.5	P11802-1
CDK4	ENST00000918532.1		c.625C>T	p.Arg209Cys	missense	Exon 5 of 8	ENSP00000588591.1
CDK4	ENST00000918534.1		c.625C>T	p.Arg209Cys	missense	Exon 5 of 8	ENSP00000588593.1

Frequencies

GnomAD3 genomes

AF:

0.000276

AC:

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.0000943

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000558

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000346

AC:

AN:

251492

AF XY:

0.000390

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.0000992

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.000677

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.000339

AC:

494

AN:

1458940

Hom.:

Cov.:

AF XY:

0.000322

AC XY:

234

AN XY:

726026

show subpopulations

African (AFR)

AF:

0.0000898

AC:

AN:

33408

American (AMR)

AF:

0.00

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.0000766

AC:

AN:

26126

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.0000928

AC:

AN:

86168

European-Finnish (FIN)

AF:

0.000131

AC:

AN:

53410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.000408

AC:

453

AN:

1109354

Other (OTH)

AF:

0.000348

AC:

AN:

60298

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

102

127

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000276

AC:

AN:

152272

Hom.:

Cov.:

AF XY:

0.000269

AC XY:

AN XY:

74448

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41532

American (AMR)

AF:

0.00

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.000207

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.0000943

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000559

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000473

Hom.:

Bravo

AF:

0.000283

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000698

AC:

ExAC

AF:

0.000371

AC:

EpiCase

AF:

0.000327

EpiControl

AF:

0.000474

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (5)

Melanoma, cutaneous malignant, susceptibility to, 3 (4)

Hereditary cancer-predisposing syndrome (3)

not specified (3)

CDK4-related disorder (1)

Familial melanoma (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Uncertain

-0.070

CADD

Pathogenic

(source)

DANN

Uncertain

0.98

DEOGEN2

Uncertain

0.49

Eigen

Benign

-0.087

Eigen_PC

Benign

0.095

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.91

M_CAP

Benign

0.0090

MetaRNN

Benign

0.098

MetaSVM

Benign

-1.1

MutationAssessor

Benign

-0.34

PhyloP100

2.2

PrimateAI

Uncertain

0.79

PROVEAN

Uncertain

-3.1

REVEL

Benign

0.25

Sift

Uncertain

0.020

Sift4G

Uncertain

0.046

Polyphen

0.26

Vest4

0.59

MVP

0.91

MPC

0.86

ClinPred

0.076

GERP RS

4.5

Varity_R

0.72

gMVP

0.80

Mutation Taster

=56/44

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.13

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over