3BWB

Crystal structure of the apo form of spermidine synthase from Trypanosoma cruzi at 2.5 A resolution

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)	Spermidine synthase	polymer	304	34525.8	2	UniProt (Q4DA73) Pfam (PF17284) Pfam (PF01564)	Trypanosoma cruzi
2	C, D (A, B)	water	water		18.0	100	Chemie (HOH)

Sequence modifications

A, B: 9 - 304 (UniProt: Q4DA73)

PDB	External Database	Details
Mse 1	-	expression tag
Ala 2	-	expression tag
His 3	-	expression tag
His 4	-	expression tag
His 5	-	expression tag
His 6	-	expression tag
His 7	-	expression tag
His 8	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	69051.5
All*	Total formula weight	69051.5

*Water molecules are not included.