CATH Classification
| Level | CATH Code | Description |
|---|---|---|
|
1 | Mainly Alpha |
|
1.10 | Orthogonal Bundle |
|
1.10.260 | 434 Repressor (Amino-terminal Domain) |
|
1.10.260.40 | lambda repressor-like DNA-binding domains |
Domain Context
CATH Clusters
| Superfamily | lambda repressor-like DNA-binding domains |
| Functional Family | Cyanate hydratase |
Enzyme Information
| 4.2.1.104 |
Cyanase.
based on mapping to UniProt P00816
Cyanate + HCO(3)(-) + 2 H(+) = NH(3) + 2 CO(2).
-!- This enzyme, which is found in bacteria and plants, is used to decompose cyanate, which can be used as the sole source of nitrogen. -!- The reaction can be considered as the reverse of 'carbamate = cyanate + H(2)O', where this is assisted by reaction with bicarbonate and carbon dioxide, and hence is classified in sub-subclass 4.2.1. -!- Bicarbonate functions as a recycling substrate. -!- Formerly EC 3.5.5.3 and EC 4.3.99.1.
|
UniProtKB Entries (1)
| P00816 |
CYNS_ECOLI
Escherichia coli K-12
Cyanate hydratase
|
PDB Structure
| PDB | 2IVQ |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | |
| Primary Citation |
A Twin Set of Low Pka Arginines Ensures the Concerted Acid Base Catalytic Mechanism of Cyanase
To be Published
|
