1IBW

STRUCTURE OF THE D53,54N MUTANT OF HISTIDINE DECARBOXYLASE BOUND WITH HISTIDINE METHYL ESTER AT 25 C

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C, E	HISTIDINE DECARBOXYLASE BETA CHAIN	polymer	81	8848.9	3	UniProt (P00862) In PDB	Lactobacillus sp. 30A
2	B, D, F	Histidine decarboxylase alpha chain	polymer	229	25285.4	3	UniProt (P00862) Pfam (PF02329) In PDB	Lactobacillus sp. 30A
3	B, D, F	HISTIDINE-METHYL-ESTER	non-polymer		170.2	3	Chemie (PVH)

Sequence modifications

A, C, E: 1 - 81 (UniProt: P00862)

PDB	External Database	Details
Asn 53	Asp 54	engineered mutation
Asn 54	Asp 55	engineered mutation

B, D, F: 82 - 310 (UniProt: P00862)

PDB	External Database	Details
Pyr 82	Ser 83	conflict

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	102402.7
Non-Polymers*	Number of molecules	3
	Total formula weight	510.6
All*	Total formula weight	102913.3

*Water molecules are not included.