1Q3L

Chromodomain Of HP1 Complexed With Histone H3 Tail Containing monomethyllysine 9.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Heterochromatin protein 1	polymer	69	8586.5	1	UniProt (P05205) Pfam (PF00385) In PDB	Drosophila melanogaster (fruit fly)	HP1, Nonhistone chromosomal protein C1A9 antigen
2	P	Histone H3	polymer	16	1742.0	1	UniProt (P16106) UniProt (by SIFTS) (P68431) In PDB
3		water	water		18.0	95	Chemie (HOH)

Sequence modifications

A: 17 - 76 (UniProt: P05205)

PDB	External Database	Details
Met 8	-	expression tag
Lys 9	-	expression tag
Lys 10	-	expression tag
His 11	-	expression tag
His 12	-	expression tag
His 13	-	expression tag
His 14	-	expression tag
His 15	-	expression tag
His 16	-	expression tag
Met 38	Lys 38	conflict

P: 1 - 16 (UniProt: P16106)

PDB	External Database	Details
Mlz 9	Lys 9	modified residue
Tyr 16	Pro 16	conflict

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	10328.5
All*	Total formula weight	10328.5

*Water molecules are not included.