4XRT

Crystal structure of the di-domain ARO/CYC StfQ from the steffimycin biosynthetic pathway

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	StfQ Aromatase/Cyclase	polymer	329	37111.6	2	UniProt (Q2PA00) Pfam (PF03364) In PDB	Streptomyces steffisburgensis
2	A, B	FORMIC ACID	non-polymer		46.0	2	Chemie (FMT)
3		water	water		18.0	635	Chemie (HOH)

Sequence modifications

A, B: 1 - 309 (UniProt: Q2PA00)

PDB	External Database	Details
Met -19	-	expression tag
Gly -18	-	expression tag
Ser -17	-	expression tag
Ser -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
Ser -9	-	expression tag
Ser -8	-	expression tag
Gly -7	-	expression tag
Leu -6	-	expression tag
Val -5	-	expression tag
Pro -4	-	expression tag
Arg -3	-	expression tag
Gly -2	-	expression tag
Ser -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	74223.2
Non-Polymers*	Number of molecules	2
	Total formula weight	92.0
All*	Total formula weight	74315.3

*Water molecules are not included.