Structure of PDB 1ez1 Chain B

Receptor sequence
>1ez1B (length=389) Species: 562 (Escherichia coli) [Search protein sequence]
TLLGTALRPAATRVMLLGSGELGKEVAIECQRLGVEVIAVDRYADAPAMH
VAHRSHVINMLDGDALRRVVELEKPHYIVPEIEAIATDMLIQLEEEGLNV
VPCARATKLTMNREGIRRLAAEELQLPTSTYRFADSESLFREAVADIGYP
CIVKPVMSSSGKGQTFIRSAEQLAQAWKYAQQGGRAGRVIVEGVVKFDFE
ITLLTVSAVDGVHFCAPVGHRQEDGDYRESWQPQQMSPLALERAQEIARK
VVLALGGYGLFGVELFVCGDEVIFSEVSPRPHDTGMVTLISQDLSEFALH
VRAFLGLPVGGIRQYGPAASAVILPQLTSQNVTFDNVQNAVGADLQIRLF
GKPEIDGSRRLGVALATAESVVDAIERAKHAAGQVKVQG
3D structure
PDB1ez1 Molecular structure of Escherichia coli PurT-encoded glycinamide ribonucleotide transformylase.
ChainB
Resolution1.75 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 E264 E276 D283 T284 R360
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 B E267 E279 E264 E276
BS02 ANP B R114 K155 S160 S161 G162 Q165 V197 V198 F200 E203 F269 E279 R113 K154 S159 S160 G161 Q164 V194 V195 F197 E200 F266 E276
BS03 GAR B G21 E22 L23 E82 I83 D286 K355 R362 R363 G20 E21 L22 E81 I82 D283 K352 R359 R360
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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Biological Process
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Cellular Component
External links
PDB RCSB:1ez1, PDBe:1ez1, PDBj:1ez1
PDBsum1ez1
PubMed10913290
UniProtP33221|PURT_ECOLI Formate-dependent phosphoribosylglycinamide formyltransferase (Gene Name=purT)

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