4ERA

Evidence for a Dual Role of an Active Site Histidine in alpha-Amino-beta-Carboxymuconate-epsilon-Semialdehyde Decarboxylase

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	2-amino-3-carboxymuconate 6-semialdehyde decarboxylase	polymer	334	37208.6	2	UniProt (Q83V25) Pfam (PF04909)	Pseudomonas fluorescens
2	C, D (A, B)	COBALT (II) ION	non-polymer		58.9	2	Chemie (CO)
3	E, F (A, B)	water	water		18.0	89	Chemie (HOH)

Sequence modifications

A, B: 1 - 334 (UniProt: Q83V25)

PDB	External Database	Details
Tyr 228	His 228	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	74417.2
Non-Polymers*	Number of molecules	2
	Total formula weight	117.9
All*	Total formula weight	74535.1

*Water molecules are not included.