4AU7

The structure of the Suv4-20h2 ternary complex with histone H4

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	HISTONE-LYSINE N-METHYLTRANSFERASE SUV420H2	polymer	247	28162.1	2	UniProt (Q6Q783) Pfam (PF00856) In PDB	MUS MUSCULUS (HOUSE MOUSE)	SUPPRESSOR OF VARIEGATION 4-20 HOMOLOG 2, SU(VAR)4-20 HOMOLOG 2, SUV4-20H2
2	C	HISTONE H4 PEPTIDE	polymer	9	1274.5	1	UniProt (P62806) In PDB	MUS MUSCULUS
3	A	S-ADENOSYL-L-HOMOCYSTEINE	non-polymer		384.4	1	Chemie (SAH)
4	A, B	ZINC ION	non-polymer		65.4	3	Chemie (ZN)
5	A, B	1,2-ETHANEDIOL	non-polymer		62.1	16	Chemie (EDO)
6		water	water		18.0	147	Chemie (HOH)

Sequence modifications

A, B: 1 - 246 (UniProt: Q6Q783)

PDB	External Database	Details
Ser 0	-	expression tag

C: 17 - 25 (UniProt: P62806)

PDB	External Database	Details
Tyr 25	Asn 26	conflict

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	57598.8
Non-Polymers*	Number of molecules	20
	Total formula weight	1573.7
All*	Total formula weight	59172.5

*Water molecules are not included.