2ZVV

Crystal structure of Proliferating cellular nuclear antigen 1 and Short peptide from human P21

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Proliferating cellular nuclear antigen 1	polymer	276	30507.8	2	UniProt (Q9M7Q7) Pfam (PF00705) Pfam (PF02747) In PDB	Arabidopsis thaliana (mouse-ear cress thale-cress)	PCNA 1
2	Y, X	Cyclin-dependent kinase inhibitor 1	polymer	22	2779.2	2	UniProt (P38936) In PDB		p21, CDK-interacting protein 1, Melanoma differentiation-associated protein 6, MDA-6
3	A, B	SULFATE ION	non-polymer		96.1	2	Chemie (SO4)
4		water	water		18.0	214	Chemie (HOH)

Sequence modifications

A, B: 1 - 256 (UniProt: Q9M7Q7)

PDB	External Database	Details
Met -19	-	expression tag
Gly -18	-	expression tag
Ser -17	-	expression tag
Ser -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
Ser -9	-	expression tag
Ser -8	-	expression tag
Gly -7	-	expression tag
Leu -6	-	expression tag
Val -5	-	expression tag
Pro -4	-	expression tag
Arg -3	-	expression tag
Gly -2	-	expression tag
Ser -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	66574.1
Non-Polymers*	Number of molecules	2
	Total formula weight	192.1
All*	Total formula weight	66766.2

*Water molecules are not included.