Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0004122 | molecular_function | cystathionine beta-synthase activity |
| A | 0005737 | cellular_component | cytoplasm |
| A | 0006535 | biological_process | cysteine biosynthetic process from serine |
| A | 0019343 | biological_process | cysteine biosynthetic process via cystathionine |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 19 |
| Details | binding site for residue PMP A 501 |
| Chain | Residue |
| A | LYS53 |
| A | GLY245 |
| A | ILE246 |
| A | SER289 |
| A | PRO318 |
| A | ASP319 |
| A | HOH601 |
| A | HOH603 |
| A | HOH621 |
| A | HOH645 |
| A | HOH659 |
| A | SER82 |
| A | ASN84 |
| A | ALA195 |
| A | GLY196 |
| A | THR197 |
| A | GLY198 |
| A | GLY199 |
| A | THR200 |
| site_id | AC2 |
| Number of Residues | 5 |
| Details | binding site for residue CA A 502 |
| Chain | Residue |
| A | ASN183 |
| A | ASP186 |
| A | ASN187 |
| A | GLN253 |
| A | HOH647 |
| site_id | AC3 |
| Number of Residues | 6 |
| Details | binding site for residue NA A 503 |
| Chain | Residue |
| A | GLY120 |
| A | HOH606 |
| A | HOH634 |
| A | HOH637 |
| A | HOH651 |
| A | HOH679 |
| site_id | AC4 |
| Number of Residues | 3 |
| Details | binding site for residue CL A 504 |
| Chain | Residue |
| A | LYS107 |
| A | MET108 |
| A | GLY245 |
| site_id | AC5 |
| Number of Residues | 2 |
| Details | binding site for residue PEG A 505 |
| Chain | Residue |
| A | GLU136 |
| A | ALA166 |
| site_id | AC6 |
| Number of Residues | 2 |
| Details | binding site for residue PEG A 506 |
| Chain | Residue |
| A | GLU165 |
| A | TYR168 |
| site_id | AC7 |
| Number of Residues | 1 |
| Details | binding site for residue EDO A 507 |
| site_id | AC8 |
| Number of Residues | 7 |
| Details | binding site for residue EDO A 508 |
| Chain | Residue |
| A | PRO222 |
| A | PHE223 |
| A | TYR241 |
| A | THR266 |
| A | ASP267 |
| A | ASP268 |
| A | HOH638 |
| site_id | AC9 |
| Number of Residues | 5 |
| Details | binding site for residue EDO A 509 |
| Chain | Residue |
| A | LEU45 |
| A | LEU45 |
| A | ASN47 |
| A | PRO48 |
| A | HOH653 |
Functional Information from PROSITE/UniProt
| site_id | PS00901 |
| Number of Residues | 19 |
| Details | CYS_SYNTHASE Cysteine synthase/cystathionine beta-synthase P-phosphate attachment site. KlElyn.PGgSIKdRiAksM |
| Chain | Residue | Details |
| A | LYS42-MET60 | |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 3 |
| Details | BINDING: BINDING => ECO:0000250 |
| Chain | Residue | Details |
| A | ASN84 | |
| A | GLY196 | |
| A | SER289 | |
| site_id | SWS_FT_FI2 |
| Number of Residues | 1 |
| Details | MOD_RES: N6-(pyridoxal phosphate)lysine => ECO:0000250 |
| Chain | Residue | Details |
| A | LYS53 | |
| Chain | Residue | Details |
| A | SER134 | |
| Chain | Residue | Details |
| A | SER350 | |
