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1B3Q

CRYSTAL STRUCTURE OF CHEA-289, A SIGNAL TRANSDUCING HISTIDINE KINASE

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B
(A, B)
PROTEIN (CHEMOTAXIS PROTEIN CHEA)polymer37942464.32UniProt (Q56310)
Pfam (PF02895)
Pfam (PF02518)
Pfam (PF01584)
Thermotoga maritima
2C, D
(A, B)
MERCURY (II) IONnon-polymer200.62Chemie (HG)
3E, F
(A, B)
waterwater18.0187Chemie (HOH)
Sequence modifications
A, B: 293 - 671 (UniProt: Q56310)
PDBExternal DatabaseDetails
Met 521Ile 521engineered mutation
Gly 522Ser 522engineered mutation
Cys 545Gln 545engineered mutation
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight84928.7
Non-Polymers*Number of molecules2
Total formula weight401.2
All*Total formula weight85329.9
*Water molecules are not included.

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PDB entries from 2025-07-09

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