3Q6S

The crystal structure of the heterochromatin protein 1 beta chromoshadow domain complexed with a peptide from Shugoshin 1

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D	Chromobox protein homolog 1	polymer	78	8973.0	4	UniProt (P83916) Pfam (PF01393) In PDB	Homo sapiens (human)	HP1Hsbeta, Heterochromatin protein 1 homolog beta, HP1 beta, Heterochromatin protein p25, M31, Modifier 1 protein, p25beta
2	E, F	Shugoshin-like 1	polymer	19	2174.6	2	UniProt (Q5FBB7) In PDB		hSgo1, Serologically defined breast cancer antigen NY-BR-85
3		water	water		18.0	158	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	40241.2
All*	Total formula weight	40241.2

*Water molecules are not included.