3MWQ
Crystal structure of ribonuclease A tandem enzymes and their interaction with the cytosolic ribonuclease inhibitor
Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0003676 | molecular_function | nucleic acid binding |
| A | 0004518 | molecular_function | nuclease activity |
| A | 0004519 | molecular_function | endonuclease activity |
| A | 0004522 | molecular_function | ribonuclease A activity |
| A | 0004540 | molecular_function | RNA nuclease activity |
| A | 0005515 | molecular_function | protein binding |
| A | 0005576 | cellular_component | extracellular region |
| A | 0016787 | molecular_function | hydrolase activity |
| A | 0016829 | molecular_function | lyase activity |
| A | 0050830 | biological_process | defense response to Gram-positive bacterium |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE SO4 A 257 |
| Chain | Residue |
| A | LYS133 |
| A | THR135 |
| A | ALA136 |
| A | HOH280 |
| site_id | AC2 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE SO4 A 258 |
| Chain | Residue |
| A | HOH290 |
| A | GLN143 |
| A | HIS144 |
| A | LYS173 |
| A | HIS251 |
| A | PHE252 |
| site_id | AC3 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE SO4 A 259 |
| Chain | Residue |
| A | GLN11 |
| A | HIS12 |
| A | HIS119 |
| A | PHE120 |
| A | HOH319 |
| site_id | AC4 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE SO4 A 260 |
| Chain | Residue |
| A | THR3 |
| A | ALA4 |
| A | ARG130 |
| A | ASN194 |
| A | TYR205 |
| A | HOH321 |
| site_id | AC5 |
| Number of Residues | 7 |
| Details | BINDING SITE FOR RESIDUE SO4 A 261 |
| Chain | Residue |
| A | LYS198 |
| A | ASP253 |
| A | ALA254 |
| A | ALA254 |
| A | SER255 |
| A | HOH267 |
| A | HOH377 |
| site_id | AC6 |
| Number of Residues | 7 |
| Details | BINDING SITE FOR RESIDUE GOL A 262 |
| Chain | Residue |
| A | HIS12 |
| A | LYS41 |
| A | VAL43 |
| A | ASN44 |
| A | THR45 |
| A | GOL263 |
| A | HOH495 |
| site_id | AC7 |
| Number of Residues | 8 |
| Details | BINDING SITE FOR RESIDUE GOL A 263 |
| Chain | Residue |
| A | LYS1 |
| A | LYS66 |
| A | ALA122 |
| A | SER123 |
| A | GOL262 |
| A | HOH450 |
| A | HOH469 |
| A | HOH493 |
Functional Information from PROSITE/UniProt
| site_id | PS00127 |
| Number of Residues | 7 |
| Details | RNASE_PANCREATIC Pancreatic ribonuclease family signature. CKpvNTF |
| Chain | Residue | Details |
| A | CYS40-PHE46 | |
| A | CYS172-PHE178 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 1 |
| Details | Active site: {"description":"Proton acceptor"} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI2 |
| Number of Residues | 1 |
| Details | Active site: {"description":"Proton donor"} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI3 |
| Number of Residues | 8 |
| Details | Binding site: {} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI4 |
| Number of Residues | 4 |
| Details | Glycosylation: {"description":"N-linked (Glc) (glycation) lysine; in vitro","evidences":[{"source":"PubMed","id":"4030761","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI5 |
| Number of Residues | 1 |
| Details | Glycosylation: {"description":"N-linked (GlcNAc...) asparagine; partial","featureId":"CAR_000006","evidences":[{"source":"PubMed","id":"19358553","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
Catalytic Information from CSA
| site_id | MCSA1 |
| Number of Residues | 5 |
| Details | M-CSA 164 |
| Chain | Residue | Details |
| A | HIS144 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
| A | LYS173 | electrostatic stabiliser, hydrogen bond donor |
| A | HIS251 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
| A | PHE252 | electrostatic stabiliser, hydrogen bond donor |
| A | ASP253 | electrostatic stabiliser, hydrogen bond acceptor |
