rs587778185

Variant names:

• chr12-57751081-G-A
• rs587778185
• NM_000075.4:c.364C>T

Your query was ambiguous. Multiple possible variants found:

• chr12-57751081-G-A
• chr12-57751081-G-C
• chr12-57751081-G-T

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4 BP6 BS2

The NM_000075.4(CDK4):​c.364C>T​(p.Arg122Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000958 in 1,461,874 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict 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. R122H) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000096 (0 hom.)
• Consequence: CDK4 NM_000075.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4 B:1 O:1
• Conservation: PhyloP100: 0.439
• Publications: 4 publications found

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

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.37228715).
• BP6: Variant 12-57751081-G-A is Benign according to our data. Variant chr12-57751081-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 133874.
• BS2: High AC in GnomAdExome4 at 14 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.364C>T	p.Arg122Cys	missense	Exon 4 of 8	NP_000066.1	P11802-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDK4	ENST00000257904.11	TSL:1 MANE Select	c.364C>T	p.Arg122Cys	missense	Exon 4 of 8	ENSP00000257904.5	P11802-1
	CDK4	ENST00000551706.1	TSL:1	n.730C>T		non_coding_transcript_exon	Exon 3 of 3
	CDK4	ENST00000918532.1		c.364C>T	p.Arg122Cys	missense	Exon 4 of 8	ENSP00000588591.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.0000159 AC: 4 AN: 251482 AF XY: 0.0000294

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000879

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000958 AC: 14 AN: 1461874 Hom.: 0 Cov.: 33 AF XY: 0.00000963 AC XY: 7 AN XY: 727238

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.0000224 AC: 1 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.0000464 AC: 4 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53406

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000809 AC: 9 AN: 1112008

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000113

ExAC AF: 0.0000247 AC: 3

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	2	-	Melanoma, cutaneous malignant, susceptibility to, 3 (2)
-	1	-	Familial melanoma (1)
-	-	1	Hereditary cancer-predisposing syndrome (1)
-	1	-	not provided (1)
-	-	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.22	T
BayesDel_noAF	Benign	-0.37
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.53	D
Eigen	Benign	0.050
Eigen_PC	Benign	-0.037
FATHMM_MKL	Benign	0.43	N
LIST_S2	Benign	0.30	T
M_CAP	Benign	0.0096	T
MetaRNN	Benign	0.37	T
MetaSVM	Benign	-0.96	T
MutationAssessor	Benign	1.3	L
PhyloP100		0.44
PrimateAI	Benign	0.43	T
PROVEAN	Pathogenic	-4.5	D
REVEL	Benign	0.21
Sift	Benign	0.065	T
Sift4G	Benign	0.12	T
Polyphen		0.99	D
Vest4		0.20
MutPred		0.51		Loss of catalytic residue at R122 (P = 0.0629)
MVP		0.73
MPC		0.87
ClinPred		0.65	D
GERP RS		1.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.37
gMVP		0.67
Mutation Taster		=57/43	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.070		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: rs587778185; hg19: chr12-58144864; COSMIC: COSV99225862; COSMIC: COSV99225862;