CATH Domain 1i5nA00

CATH Classification

Level	CATH Code	Description
	1	Mainly Alpha
	1.20	Up-down Bundle
	1.20.120	Four Helix Bundle (Hemerythrin (Met), subunit A)
	1.20.120.160	HPT domain

Domain Context

CATH Clusters

Superfamily	HPT domain
Functional Family

Enzyme Information

2.7.13.3

Histidine kinase.

based on mapping to UniProt P09384

ATP + protein L-histidine = ADP + protein N-phospho-L-histidine.

-!- This entry has been included to accommodate those protein-histidine kinases for which the phosphorylation site has not been established (i.e. either the pros- or tele-nitrogen of histidine). -!- A number of histones can act as acceptor.

UniProtKB Entries (1)

P09384

CHEA_SALTY

Salmonella enterica subsp. enterica serovar Typhimurium str. LT2

Chemotaxis protein CheA

PDB Structure

PDB	1I5N
External Links	PDBSum Proteopedia
Method	X-RAY DIFFRACTION
Organism	Escherichia
Primary Citation	Crystal structure of the CheA histidine phosphotransfer domain that mediates response regulator phosphorylation in bacterial chemotaxis Mourey, L., Da Re, S., Pedelacq, J.-D., Tolstykh, T., Faurie, C., Guillet, V., Stock, J.B., Samama, J.-P. J.Biol.Chem.