1RAI
CRYSTAL STRUCTURE OF CTP-LIGATED T STATE ASPARTATE TRANSCARBAMOYLASE AT 2.5 ANGSTROMS RESOLUTION: IMPLICATIONS FOR ATCASE MUTANTS AND THE MECHANISM OF NEGATIVE COOPERATIVITY
Functional Information from GO Data
| Chain | GOid | namespace | contents | 
| A | 0004070 | molecular_function | aspartate carbamoyltransferase activity | 
| A | 0004088 | molecular_function | carbamoyl-phosphate synthase (glutamine-hydrolyzing) activity | 
| A | 0005515 | molecular_function | protein binding | 
| A | 0005737 | cellular_component | cytoplasm | 
| A | 0005829 | cellular_component | cytosol | 
| A | 0006207 | biological_process | 'de novo' pyrimidine nucleobase biosynthetic process | 
| A | 0006221 | biological_process | pyrimidine nucleotide biosynthetic process | 
| A | 0006520 | biological_process | amino acid metabolic process | 
| A | 0006541 | biological_process | glutamine metabolic process | 
| A | 0009347 | cellular_component | aspartate carbamoyltransferase complex | 
| A | 0016597 | molecular_function | amino acid binding | 
| A | 0016740 | molecular_function | transferase activity | 
| A | 0016743 | molecular_function | carboxyl- or carbamoyltransferase activity | 
| A | 0042802 | molecular_function | identical protein binding | 
| A | 0044205 | biological_process | 'de novo' UMP biosynthetic process | 
| A | 0070207 | biological_process | protein homotrimerization | 
| B | 0005515 | molecular_function | protein binding | 
| B | 0005737 | cellular_component | cytoplasm | 
| B | 0006207 | biological_process | 'de novo' pyrimidine nucleobase biosynthetic process | 
| B | 0006221 | biological_process | pyrimidine nucleotide biosynthetic process | 
| B | 0008270 | molecular_function | zinc ion binding | 
| B | 0009347 | cellular_component | aspartate carbamoyltransferase complex | 
| B | 0046872 | molecular_function | metal ion binding | 
| C | 0004070 | molecular_function | aspartate carbamoyltransferase activity | 
| C | 0004088 | molecular_function | carbamoyl-phosphate synthase (glutamine-hydrolyzing) activity | 
| C | 0005515 | molecular_function | protein binding | 
| C | 0005737 | cellular_component | cytoplasm | 
| C | 0005829 | cellular_component | cytosol | 
| C | 0006207 | biological_process | 'de novo' pyrimidine nucleobase biosynthetic process | 
| C | 0006221 | biological_process | pyrimidine nucleotide biosynthetic process | 
| C | 0006520 | biological_process | amino acid metabolic process | 
| C | 0006541 | biological_process | glutamine metabolic process | 
| C | 0009347 | cellular_component | aspartate carbamoyltransferase complex | 
| C | 0016597 | molecular_function | amino acid binding | 
| C | 0016740 | molecular_function | transferase activity | 
| C | 0016743 | molecular_function | carboxyl- or carbamoyltransferase activity | 
| C | 0042802 | molecular_function | identical protein binding | 
| C | 0044205 | biological_process | 'de novo' UMP biosynthetic process | 
| C | 0070207 | biological_process | protein homotrimerization | 
| D | 0005515 | molecular_function | protein binding | 
| D | 0005737 | cellular_component | cytoplasm | 
| D | 0006207 | biological_process | 'de novo' pyrimidine nucleobase biosynthetic process | 
| D | 0006221 | biological_process | pyrimidine nucleotide biosynthetic process | 
| D | 0008270 | molecular_function | zinc ion binding | 
| D | 0009347 | cellular_component | aspartate carbamoyltransferase complex | 
| D | 0046872 | molecular_function | metal ion binding | 
Functional Information from PDB Data
| site_id | AC1 | 
| Number of Residues | 4 | 
| Details | BINDING SITE FOR RESIDUE ZN B 154 | 
| Chain | Residue | 
| B | CYS114 | 
| B | CYS138 | 
| B | CYS141 | 
| B | CYS109 | 
| site_id | AC2 | 
| Number of Residues | 4 | 
| Details | BINDING SITE FOR RESIDUE ZN D 154 | 
| Chain | Residue | 
| D | CYS109 | 
| D | CYS114 | 
| D | CYS138 | 
| D | CYS141 | 
| site_id | AC3 | 
| Number of Residues | 8 | 
| Details | BINDING SITE FOR RESIDUE CTP B 999 | 
| Chain | Residue | 
| B | VAL9 | 
| B | ALA11 | 
| B | ILE12 | 
| B | HIS20 | 
| B | LYS60 | 
| B | ILE86 | 
| B | TYR89 | 
| B | LYS94 | 
| site_id | AC4 | 
| Number of Residues | 10 | 
| Details | BINDING SITE FOR RESIDUE CTP D 999 | 
| Chain | Residue | 
| D | GLU10 | 
| D | ALA11 | 
| D | ILE12 | 
| D | ASP19 | 
| D | THR82 | 
| D | ASN84 | 
| D | TYR89 | 
| D | GLU90 | 
| D | VAL91 | 
| D | LYS94 | 
| site_id | ZNB | 
| Number of Residues | 4 | 
| Details | ZN BINDING SITE OF CHAIN B | 
| Chain | Residue | 
| B | CYS109 | 
| B | CYS114 | 
| B | CYS138 | 
| B | CYS141 | 
| site_id | ZND | 
| Number of Residues | 4 | 
| Details | ZN BINDING SITE OF CHAIN D | 
| Chain | Residue | 
| D | CYS109 | 
| D | CYS114 | 
| D | CYS138 | 
| D | CYS141 | 
Functional Information from PROSITE/UniProt
| site_id | PS00097 | 
| Number of Residues | 8 | 
| Details | CARBAMOYLTRANSFERASE Aspartate and ornithine carbamoyltransferases signature. FfEaSTRT | 
| Chain | Residue | Details | 
| A | PHE48-THR55 | 
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 | 
| Number of Residues | 14 | 
| Details | Binding site: {"evidences":[{"source":"HAMAP-Rule","id":"MF_00001","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"3380787","evidenceCode":"ECO:0000269"}]} | 
| Chain | Residue | Details | 
| site_id | SWS_FT_FI2 | 
| Number of Residues | 6 | 
| Details | Binding site: {"evidences":[{"source":"HAMAP-Rule","id":"MF_00001","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"3380787","evidenceCode":"ECO:0000305"}]} | 
| Chain | Residue | Details | 
| site_id | SWS_FT_FI3 | 
| Number of Residues | 8 | 
| Details | Binding site: {} | 
| Chain | Residue | Details | 
Catalytic Information from CSA
| site_id | CSA1 | 
| Number of Residues | 4 | 
| Details | Annotated By Reference To The Literature 1at1 | 
| Chain | Residue | Details | 
| A | ARG54 | |
| A | HIS134 | |
| A | ARG105 | |
| A | THR55 | 
| site_id | CSA2 | 
| Number of Residues | 4 | 
| Details | Annotated By Reference To The Literature 1at1 | 
| Chain | Residue | Details | 
| C | ARG54 | |
| C | HIS134 | |
| C | ARG105 | |
| C | THR55 | 
| site_id | MCSA1 | 
| Number of Residues | 5 | 
| Details | M-CSA 405 | 
| Chain | Residue | Details | 
| A | ARG54 | electrostatic stabiliser | 
| A | THR55 | electrostatic stabiliser, increase electrophilicity | 
| A | LYS84 | proton shuttle (general acid/base) | 
| A | ARG105 | electrostatic stabiliser, increase electrophilicity | 
| A | HIS134 | electrostatic stabiliser, increase electrophilicity | 
| site_id | MCSA2 | 
| Number of Residues | 5 | 
| Details | M-CSA 405 | 
| Chain | Residue | Details | 
| C | ARG54 | electrostatic stabiliser | 
| C | THR55 | electrostatic stabiliser, increase electrophilicity | 
| C | LYS84 | proton shuttle (general acid/base) | 
| C | ARG105 | electrostatic stabiliser, increase electrophilicity | 
| C | HIS134 | electrostatic stabiliser, increase electrophilicity | 






