5BQT

Structure of TrmBL2, an archaeal chromatin protein, shows a novel mode of DNA binding.

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 (A, B, C, D)	Putative HTH-type transcriptional regulator TrmBL2	polymer	262	30421.3	4	UniProt (Q8U3H1) Pfam (PF01978) Pfam (PF11495)	Pyrococcus furiosus
2	E, F (B, D)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	121685.1
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	121765.2

*Water molecules are not included.