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 | 21 |
| Details | binding site for residue P1T A 501 |
| Chain | Residue |
| A | LYS53 |
| A | GLY198 |
| A | GLY199 |
| A | THR200 |
| A | GLY245 |
| A | ILE246 |
| A | SER289 |
| A | PRO318 |
| A | ASP319 |
| A | HOH657 |
| A | HOH702 |
| A | THR81 |
| A | HOH706 |
| A | HOH779 |
| A | SER82 |
| A | ASN84 |
| A | THR85 |
| A | GLN157 |
| A | ALA195 |
| A | GLY196 |
| A | THR197 |
| site_id | AC2 |
| Number of Residues | 7 |
| Details | binding site for residue CA A 502 |
| Chain | Residue |
| A | ASN183 |
| A | ASP186 |
| A | ASN187 |
| A | GLN253 |
| A | HOH867 |
| A | HOH874 |
| A | HOH880 |
| site_id | AC3 |
| Number of Residues | 2 |
| Details | binding site for residue NA A 503 |
| Chain | Residue |
| A | GLY120 |
| A | HOH770 |
| 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 | 12 |
| Details | binding site for residue PEG A 505 |
| Chain | Residue |
| A | LEU45 |
| A | LEU45 |
| A | TYR46 |
| A | TYR46 |
| A | ASN47 |
| A | PRO48 |
| A | GLY49 |
| A | GLY50 |
| A | LEU285 |
| A | ARG322 |
| A | HOH820 |
| A | HOH820 |
| site_id | AC6 |
| Number of Residues | 6 |
| Details | binding site for residue PEG A 506 |
| Chain | Residue |
| A | MET161 |
| A | GLU165 |
| A | TYR168 |
| A | LYS206 |
| A | HOH612 |
| A | HOH620 |
| site_id | AC7 |
| Number of Residues | 4 |
| Details | binding site for residue PGE A 507 |
| Chain | Residue |
| A | SER59 |
| A | MET162 |
| A | PHE169 |
| A | HOH865 |
| site_id | AC8 |
| Number of Residues | 7 |
| Details | binding site for residue EDO A 508 |
| Chain | Residue |
| A | ARG189 |
| A | LYS214 |
| A | GLN216 |
| A | TYR300 |
| A | LEU307 |
| A | HOH607 |
| A | HOH624 |
| site_id | AC9 |
| Number of Residues | 6 |
| Details | binding site for residue EDO A 509 |
| Chain | Residue |
| A | LYS242 |
| A | TRP333 |
| A | HOH602 |
| A | HOH645 |
| A | HOH720 |
| A | HOH813 |
| site_id | AD1 |
| Number of Residues | 5 |
| Details | binding site for residue EDO A 510 |
| Chain | Residue |
| A | GLU306 |
| A | THR308 |
| A | ASP311 |
| A | HOH636 |
| A | HOH864 |
| site_id | AD2 |
| Number of Residues | 8 |
| Details | binding site for residue EDO A 511 |
| Chain | Residue |
| A | PHE185 |
| A | ASP186 |
| A | LEU188 |
| A | ARG189 |
| A | ASN212 |
| A | ILE215 |
| A | HOH607 |
| A | HOH608 |
| site_id | AD3 |
| Number of Residues | 5 |
| Details | binding site for residue EDO A 512 |
| Chain | Residue |
| A | PHE223 |
| A | LYS235 |
| A | THR236 |
| A | HOH625 |
| A | HOH649 |
| site_id | AD4 |
| Number of Residues | 4 |
| Details | binding site for residue EDO A 513 |
| Chain | Residue |
| A | ILE226 |
| A | PHE250 |
| A | VAL251 |
| A | HOH623 |
| site_id | AD5 |
| Number of Residues | 4 |
| Details | binding site for residue EDO A 514 |
| Chain | Residue |
| A | PRO305 |
| A | PRO305 |
| A | HOH658 |
| A | HOH673 |
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 | |
