Structure of PDB 4o7n Chain A

Receptor sequence
>4o7nA (length=233) Species: 70601 (Pyrococcus horikoshii OT3) [Search protein sequence]
EVYEGKAKKMIPIDDDKLIMEFKDDATAFDGTKKARFKGKGWLNAQLSVI
FFKLLEEHGIKTHFIGVAGGNRLIVEKLDMYPLEVVVRNVVAGSLKKRLP
LPEGYELPEPIVELYYKNDELHDPMINYYHAKVLGISLDEIKKIEEIALK
VNEILKDYLAKKGIILVDFKLEFGKDKNGDIVLADEISPDTCRFWDAKTK
RSLDKDVFRFDKGDLIEAYKEIYERITGEKPEF
3D structure
PDB4o7n SAICAR synthetase (Type-2) in complex with ADP
ChainA
Resolution2.16 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 6.3.2.6: phosphoribosylaminoimidazolesuccinocarboxamide synthase.
Interaction with ligand
Site
#
Ligand Ligand
chain
Binding residues on receptor
(original residue number in PDB)
Binding residues on receptor
(residue number reindexed from 1)
Binding affinity
BS01 ADP A Y8 G10 K11 A12 K13 M15 L23 H68 E81 L83 M85 E177 D190 Y3 G5 K6 A7 K8 M10 L18 H63 E76 L78 M80 E172 D185
Gene Ontology
Molecular Function
GO:0004639 phosphoribosylaminoimidazolesuccinocarboxamide synthase activity
GO:0005524 ATP binding
GO:0016874 ligase activity
Biological Process
GO:0006164 purine nucleotide biosynthetic process
GO:0006189 'de novo' IMP biosynthetic process
GO:0009236 cobalamin biosynthetic process

View graph for
Molecular Function

View graph for
Biological Process
External links
PDB RCSB:4o7n, PDBe:4o7n, PDBj:4o7n
PDBsum4o7n
PubMed
UniProtO57978|PUR7_PYRHO Phosphoribosylaminoimidazole-succinocarboxamide synthase (Gene Name=purC)

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