5IF1

Crystal structure apo CDK2/cyclin A

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	Cyclin-dependent kinase 2	polymer	298	33976.5	2	UniProt (P24941) Pfam (PF00069) In PDB	Homo sapiens (Human)	Cell division protein kinase 2,p33 protein kinase
2	B, D	Cyclin-A2	polymer	265	30582.3	2	UniProt (P20248) Pfam (PF00134) Pfam (PF02984) In PDB	Homo sapiens (Human)	Cyclin-A
3		water	water		18.0	121	Chemie (HOH)

Sequence modifications

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

PDB	External Database	Details
His 168	-	expression tag
His 169	-	expression tag
His 170	-	expression tag
His 171	-	expression tag
His 172	-	expression tag
His 173	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	129117.5
All*	Total formula weight	129117.5

*Water molecules are not included.