5IUL

Crystal structure of the DesK-DesR complex in the phosphotransfer state with high Mg2+ (150 mM) and BeF3

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, D, E (A, B, D, E)	Sensor histidine kinase DesK	polymer	218	24956.6	4	UniProt (O34757) Pfam (PF07730) Pfam (PF02518)	Bacillus subtilis
2	C, F (C, F)	Transcriptional regulatory protein DesR	polymer	139	15108.4	2	UniProt (O34723) Pfam (PF00072)	Bacillus subtilis (strain 168)
3	G, I, N, P (A, B, D, E)	PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER	non-polymer		505.2	4	Chemie (ACP)
4	H, J, K, O, Q... (A, B, C, D, E...)	MAGNESIUM ION	non-polymer		24.3	6	Chemie (MG)
5	L, M (C)	POTASSIUM ION	non-polymer		39.1	2	Chemie (K)
6	S, T, U, V, W... (A, B, C, D, E...)	water	water		18.0	18	Chemie (HOH)

Sequence modifications

A, B, D, E: 154 - 370 (UniProt: O34757)

PDB	External Database	Details
Gly 153	-	expression tag
Glu 188	His 188	engineered mutation

C, F: 1 - 135 (UniProt: O34723)

PDB	External Database	Details
Gly -3	-	expression tag
Ser -2	-	expression tag
Gly -1	-	expression tag
Ser 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	130043.1
Non-Polymers*	Number of molecules	12
	Total formula weight	2244.9
All*	Total formula weight	132288.0

*Water molecules are not included.