Structure of PDB 1kj9 Chain A

Receptor sequence
>1kj9A (length=386) Species: 562 (Escherichia coli) [Search protein sequence]
TLLGTALRPAATRVMLLGSGELGKEVAIECQRLGVEVIAVDRYADAPAMH
VAHRSHVINMLDGDALRRVVELEKPHYIVPEIEAIATDMLIQLEEEGLNV
VPCARATKLTMNREGIRRLAAEELQLPTSTYRFADSESLFREAVADIGYP
CIVKPVMSSSGKGQTFIRSAEQLAQAWKYAQQGGRVIVEGVVKFDFEITL
LTVSAVDGVHFCAPVGHRQEDGDYRESWQPQQMSPLALERAQEIARKVVL
ALGGYGLFGVELFVCGDEVIFSEVSPRPHDTGMVTLISQDLSEFALHVRA
FLGLPVGGIRQYGPAASAVILPQLTSQNVTFDNVQNAVGADLQIRLFGKP
EIDGSRRLGVALATAESVVDAIERAKHAAGQVKVQG
3D structure
PDB1kj9 PurT-encoded glycinamide ribonucleotide transformylase. Accommodation of adenosine nucleotide analogs within the active site.
ChainA
Resolution1.6 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) E115 K155 S160 G162 E267 E279 D286 T287 R363
Catalytic site (residue number reindexed from 1) E114 K154 S159 G161 E261 E273 D280 T281 R357
Enzyme Commision number 6.3.1.21: phosphoribosylglycinamide formyltransferase 2.
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 MG A E267 E279 E261 E273
BS02 ATP A R114 I153 K155 S160 S161 G162 Q165 E195 V198 F200 E203 Q225 E267 F269 E279 R113 I152 K154 S159 S160 G161 Q164 E189 V192 F194 E197 Q219 E261 F263 E273
Gene Ontology
Molecular Function
GO:0000287 magnesium ion binding
GO:0003824 catalytic activity
GO:0004644 phosphoribosylglycinamide formyltransferase activity
GO:0005515 protein binding
GO:0005524 ATP binding
GO:0008776 acetate kinase activity
GO:0016742 hydroxymethyl-, formyl- and related transferase activity
GO:0016874 ligase activity
GO:0043815 phosphoribosylglycinamide formyltransferase 2 activity
GO:0046872 metal ion binding
Biological Process
GO:0006164 purine nucleotide biosynthetic process
GO:0006189 'de novo' IMP biosynthetic process
GO:0009152 purine ribonucleotide biosynthetic process
Cellular Component
GO:0005829 cytosol

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Cellular Component
External links
PDB RCSB:1kj9, PDBe:1kj9, PDBj:1kj9
PDBsum1kj9
PubMed11953435
UniProtP33221|PURT_ECOLI Formate-dependent phosphoribosylglycinamide formyltransferase (Gene Name=purT)

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