4OMG

Crystal structure of the bacterial diterpene cyclase COTB2

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Geranylgeranyl diphosphate cyclase	polymer	318	36770.5	2	UniProt (C9K1X5) Pfam (PF19086) In PDB	Streptomyces melanosporofaciens
2	A, B	3-CYCLOHEXYL-1-PROPYLSULFONIC ACID	non-polymer		221.3	2	Chemie (CXS)
3	A, B	SODIUM ION	non-polymer		23.0	2	Chemie (NA)
4		water	water		18.0	268	Chemie (HOH)

Sequence modifications

A, B: 1 - 307 (UniProt: C9K1X5)

PDB	External Database	Details
Ala 308	-	expression tag
Ala 309	-	expression tag
Ala 310	-	expression tag
Leu 311	-	expression tag
Glu 312	-	expression tag
His 313	-	expression tag
His 314	-	expression tag
His 315	-	expression tag
His 316	-	expression tag
His 317	-	expression tag
His 318	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	73541.0
Non-Polymers*	Number of molecules	4
	Total formula weight	488.6
All*	Total formula weight	74029.7

*Water molecules are not included.