Structure of PDB 1acm Chain A

Receptor sequence
>1acmA (length=310) Species: 83333 (Escherichia coli K-12) [Search protein sequence]
ANPLYQKHIISINDLSRDDLNLVLATAAKLKANPQPELLKHKVIASCFFE
ASTATRLSFQTSMHRLGASVVGFSDSANTSLGKKGETLADTISVISTYVD
AIVMRHPQEGAARLATEFSGNVPVLNAGDGSNQHPTQTLLDLFTIQQTEG
RLDNLHVAMVGDLKYGRTVHSLTQALAKFDGNRFYFIAPDALAMPEYILD
MLDEKGIAWSLHSSIEEVMAEVDILYMTRVQKERLDPSEYANVKAQFVLR
ASDLHNAKANMKVLHPLPRVDEIATDVDKTPHAWYFQQAGNGIFARQALL
ALVLNRDLVL
3D structure
PDB1acm Arginine 54 in the active site of Escherichia coli aspartate transcarbamoylase is critical for catalysis: a site-specific mutagenesis, NMR, and X-ray crystallographic study.
ChainA
Resolution2.8 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) A54 T55 K84 R105 H134 Q137 T228 P266 G292
Catalytic site (residue number reindexed from 1) A54 T55 K84 R105 H134 Q137 T228 P266 G292
Enzyme Commision number 2.1.3.2: aspartate carbamoyltransferase.
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 PAL A S52 T53 T55 R105 H134 R167 R229 L267 P268 S52 T53 T55 R105 H134 R167 R229 L267 P268
Gene Ontology
Molecular Function
GO:0004070 aspartate carbamoyltransferase activity
GO:0004088 carbamoyl-phosphate synthase (glutamine-hydrolyzing) activity
GO:0005515 protein binding
GO:0016597 amino acid binding
GO:0016740 transferase activity
GO:0016743 carboxyl- or carbamoyltransferase activity
GO:0042802 identical protein binding
Biological Process
GO:0006207 'de novo' pyrimidine nucleobase biosynthetic process
GO:0006221 pyrimidine nucleotide biosynthetic process
GO:0006520 amino acid metabolic process
GO:0006541 glutamine metabolic process
GO:0044205 'de novo' UMP biosynthetic process
GO:0070207 protein homotrimerization
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol
GO:0009347 aspartate carbamoyltransferase complex

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Molecular Function
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Cellular Component
External links
PDB RCSB:1acm, PDBe:1acm, PDBj:1acm
PDBsum1acm
PubMed1303763
UniProtP0A786|PYRB_ECOLI Aspartate carbamoyltransferase catalytic subunit (Gene Name=pyrB)

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