1A5B
CRYO-CRYSTALLOGRAPHY OF A TRUE SUBSTRATE, INDOLE-3-GLYCEROL PHOSPHATE, BOUND TO A MUTANT (ALPHA D60N) TRYPTOPHAN SYNTHASE ALPHA2BETA2 COMPLEX REVEALS THE CORRECT ORIENTATION OF ACTIVE SITE ALPHA GLU 49
Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0000162 | biological_process | tryptophan biosynthetic process |
| A | 0003824 | molecular_function | catalytic activity |
| A | 0004834 | molecular_function | tryptophan synthase activity |
| A | 0005515 | molecular_function | protein binding |
| A | 0005829 | cellular_component | cytosol |
| A | 0006568 | biological_process | tryptophan metabolic process |
| A | 0008152 | biological_process | metabolic process |
| A | 0008652 | biological_process | amino acid biosynthetic process |
| A | 0009073 | biological_process | aromatic amino acid family biosynthetic process |
| A | 0016829 | molecular_function | lyase activity |
| B | 0000162 | biological_process | tryptophan biosynthetic process |
| B | 0004834 | molecular_function | tryptophan synthase activity |
| B | 0005515 | molecular_function | protein binding |
| B | 0005737 | cellular_component | cytoplasm |
| B | 0006568 | biological_process | tryptophan metabolic process |
| B | 0008652 | biological_process | amino acid biosynthetic process |
| B | 0009073 | biological_process | aromatic amino acid family biosynthetic process |
| B | 0016829 | molecular_function | lyase activity |
| B | 0042802 | molecular_function | identical protein binding |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE K B 500 |
| Chain | Residue |
| B | GLY232 |
| B | GLY268 |
| B | PHE306 |
| B | SER308 |
| B | HOH596 |
| site_id | AC2 |
| Number of Residues | 12 |
| Details | BINDING SITE FOR RESIDUE IGP A 271 |
| Chain | Residue |
| A | ASN60 |
| A | LEU100 |
| A | ILE153 |
| A | TYR175 |
| A | GLY211 |
| A | GLY213 |
| A | GLY234 |
| A | SER235 |
| A | HOH585 |
| A | HOH586 |
| A | GLU49 |
| A | ALA59 |
| site_id | AC3 |
| Number of Residues | 15 |
| Details | BINDING SITE FOR RESIDUE PLP B 501 |
| Chain | Residue |
| B | HIS86 |
| B | LYS87 |
| B | GLN114 |
| B | THR190 |
| B | GLY232 |
| B | GLY233 |
| B | GLY234 |
| B | SER235 |
| B | ASN236 |
| B | GLY303 |
| B | GLU350 |
| B | SER377 |
| B | GLY378 |
| B | HOH598 |
| B | HOH634 |
| site_id | S1 |
| Number of Residues | 1 |
| Details | TRUE SUBSTRATE IGP IS BOUND TO THE ACTIVE SITE OF A-SUBUNIT. |
| Chain | Residue |
| A | IGP271 |
| site_id | S2 |
| Number of Residues | 1 |
| Details | COENZYME PLP BINDING SITE. |
| Chain | Residue |
| B | PLP501 |
Functional Information from PROSITE/UniProt
| site_id | PS00168 |
| Number of Residues | 15 |
| Details | TRP_SYNTHASE_BETA Tryptophan synthase beta chain pyridoxal-phosphate attachment site. LlHgGAHKtNqvLgQ |
| Chain | Residue | Details |
| B | LEU80-GLN94 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 1 |
| Details | MOD_RES: N6-(pyridoxal phosphate)lysine |
| Chain | Residue | Details |
| B | THR88 | |
| A | ASN60 |
Catalytic Information from CSA
| site_id | MCSA1 |
| Number of Residues | 3 |
| Details | M-CSA 383 |
| Chain | Residue | Details |
| B | THR88 | electron pair acceptor, electron pair donor, nucleofuge, nucleophile, proton acceptor, proton donor |
| B | THR110 | |
| B | GLY378 | hydrogen bond donor |
