3JXC

Crystal structure of the P22 c2 repressor protein in complex with synthetic operator 9T in the presence of Tl+

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	5'-D(*CP*AP*TP*TP*TP*AP*AP*GP*AP*TP*AP*TP*CP*TP*TP*AP*AP*AP*TP*G)-3'	polymer	20	6131.0	2
2	L, R	Repressor protein C2	polymer	67	7494.7	2	UniProt (P69202) Pfam (PF01381) In PDB	Enterobacteria phage P22 (Bacteriophage P22)
3	A, B	THALLIUM (I) ION	non-polymer		204.4	4	Chemie (TL)
4		water	water		18.0	279	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	27251.4
Non-Polymers*	Number of molecules	4
	Total formula weight	817.5
All*	Total formula weight	28068.9

*Water molecules are not included.