6S4D

Crystal Structure of the Homospermidine Synthase (HSS) variant W229F from Blastochloris viridis in Complex with NAD

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)	Homospermidine synthase	polymer	480	52998.5	2	UniProt (O32323)	Blastochloris viridis	HSS
2	C, E (A, B)	NICOTINAMIDE-ADENINE-DINUCLEOTIDE	non-polymer		663.4	2	Chemie (NAD)
3	D, F, G (A, B)	3-PYRIDINIUM-1-YLPROPANE-1-SULFONATE	non-polymer		201.2	3	Chemie (1PS)
4	H, I (A, B)	water	water		18.0	832	Chemie (HOH)

Sequence modifications

A, B: 2 - 477 (UniProt: O32323)

PDB	External Database	Details
Gly -2	-	expression tag
Pro -1	-	expression tag
Met 0	-	expression tag
Gly 1	-	expression tag
Phe 229	Trp 229	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	105996.9
Non-Polymers*	Number of molecules	5
	Total formula weight	1930.6
All*	Total formula weight	107927.5

*Water molecules are not included.