5CYI

CDK2/Cyclin A covalent complex with 6-(cyclohexylmethoxy)-N-(4-(vinylsulfonyl)phenyl)-9H-purin-2-amine (NU6300)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (A, C)	Cyclin-dependent kinase 2	polymer	303	34467.9	2	UniProt (P24941) Pfam (PF00069)	Homo sapiens (Human)	Cell division protein kinase 2,p33 protein kinase
2	B, D (B, D)	Cyclin-A2	polymer	260	29884.6	2	UniProt (P20248) Pfam (PF00134) Pfam (PF02984)	Homo sapiens (Human)	Cyclin-A
3	E, F (A, C)	6-(cyclohexylmethoxy)-N-[4-(ethylsulfonyl)phenyl]-9H-purin-2-amine	non-polymer		415.5	2	Chemie (55S)
4	G, H, I, J (A, B, C, D)	water	water		18.0	492	Chemie (HOH)

Sequence modifications

A, C: 1 - 298 (UniProt: P24941)

PDB	External Database	Details
Gly -4	-	expression tag
Pro -3	-	expression tag
Leu -2	-	expression tag
Gly -1	-	expression tag
Ser 0	-	expression tag

B, D: 174 - 432 (UniProt: P20248)

PDB	External Database	Details
Met 173	-	initiating methionine

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	128705.1
Non-Polymers*	Number of molecules	2
	Total formula weight	831.0
All*	Total formula weight	129536.1

*Water molecules are not included.