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4XQC

Crystal Structure of the Homospermidine Synthase (HSS) from Blastochloris viridis in Complex with NAD and 1,3-diaminopropane.

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B
(A, B)
Homospermidine synthasepolymer47552594.02UniProt (O32323)
Pfam (PF03435)
Pfam (PF16653)
Blastochloris viridisHSS
2C, J
(A, B)
NICOTINAMIDE-ADENINE-DINUCLEOTIDEnon-polymer663.42Chemie (NAD)
3D, E
(A)
1,3-DIAMINOPROPANEnon-polymer74.12Chemie (13D)
4F, K
(A, B)
3-PYRIDINIUM-1-YLPROPANE-1-SULFONATEnon-polymer201.22Chemie (1PS)
5G, H, I, L
(A, B)
ACETATE IONnon-polymer59.04Chemie (ACT)
6M, N
(A, B)
waterwater18.01490Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight105188.0
Non-Polymers*Number of molecules10
Total formula weight2113.8
All*Total formula weight107301.7
*Water molecules are not included.

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PDB entries from 2025-06-18

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