Crystallization (Comment) | Organism |
---|---|
- |
Azotobacter vinelandii |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
H2 | - |
Allochromatium vinosum | |
H2 | - |
Anabaena cylindrica | |
H2 | - |
Azotobacter chroococcum | |
H2 | - |
Azotobacter vinelandii | |
H2 | - |
Bradyrhizobium japonicum | |
H2 | - |
Bradyrhizobium lupini | |
H2 | - |
Clostridium pasteurianum | |
H2 | - |
Corynebacterium flavescens | |
H2 | - |
Klebsiella pneumoniae | |
H2 | - |
Paenibacillus polymyxa | |
H2 | - |
Rhodospirillum rubrum |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
additional information | - |
additional information | - |
Klebsiella pneumoniae | |
additional information | - |
additional information | - |
Clostridium pasteurianum | |
additional information | - |
additional information | - |
Azotobacter vinelandii | |
additional information | - |
additional information | - |
Allochromatium vinosum | |
additional information | - |
additional information | - |
Anabaena cylindrica | |
additional information | - |
additional information | - |
Azotobacter chroococcum |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
additional information | not established, whether the nitrogenase exists in vivo in a specific particle or whether the nitrogenase proteins are bound nonspecifically to the membranes of some cells | Bradyrhizobium japonicum | - |
- |
additional information | not established, whether the nitrogenase exists in vivo in a specific particle or whether the nitrogenase proteins are bound nonspecifically to the membranes of some cells | Klebsiella pneumoniae | - |
- |
additional information | not established, whether the nitrogenase exists in vivo in a specific particle or whether the nitrogenase proteins are bound nonspecifically to the membranes of some cells | Clostridium pasteurianum | - |
- |
additional information | not established, whether the nitrogenase exists in vivo in a specific particle or whether the nitrogenase proteins are bound nonspecifically to the membranes of some cells | Azotobacter vinelandii | - |
- |
additional information | not established, whether the nitrogenase exists in vivo in a specific particle or whether the nitrogenase proteins are bound nonspecifically to the membranes of some cells | Paenibacillus polymyxa | - |
- |
additional information | not established, whether the nitrogenase exists in vivo in a specific particle or whether the nitrogenase proteins are bound nonspecifically to the membranes of some cells | Rhodospirillum rubrum | - |
- |
additional information | not established, whether the nitrogenase exists in vivo in a specific particle or whether the nitrogenase proteins are bound nonspecifically to the membranes of some cells | Allochromatium vinosum | - |
- |
additional information | not established, whether the nitrogenase exists in vivo in a specific particle or whether the nitrogenase proteins are bound nonspecifically to the membranes of some cells | Bradyrhizobium lupini | - |
- |
additional information | not established, whether the nitrogenase exists in vivo in a specific particle or whether the nitrogenase proteins are bound nonspecifically to the membranes of some cells | Anabaena cylindrica | - |
- |
additional information | not established, whether the nitrogenase exists in vivo in a specific particle or whether the nitrogenase proteins are bound nonspecifically to the membranes of some cells | Azotobacter chroococcum | - |
- |
additional information | not established, whether the nitrogenase exists in vivo in a specific particle or whether the nitrogenase proteins are bound nonspecifically to the membranes of some cells | Corynebacterium flavescens | - |
- |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | Mg2+ required for MgATP complex | Bradyrhizobium japonicum | |
Mg2+ | Mg2+ required for MgATP complex | Klebsiella pneumoniae | |
Mg2+ | Mg2+ required for MgATP complex | Clostridium pasteurianum | |
Mg2+ | Mg2+ required for MgATP complex | Azotobacter vinelandii | |
Mg2+ | Mg2+ required for MgATP complex | Paenibacillus polymyxa | |
Mg2+ | Mg2+ required for MgATP complex | Rhodospirillum rubrum | |
Mg2+ | Mg2+ required for MgATP complex | Allochromatium vinosum | |
Mg2+ | Mg2+ required for MgATP complex | Bradyrhizobium lupini | |
Mg2+ | Mg2+ required for MgATP complex | Anabaena cylindrica | |
Mg2+ | Mg2+ required for MgATP complex | Azotobacter chroococcum | |
Mg2+ | Mg2+ required for MgATP complex | Corynebacterium flavescens | |
additional information | other metal ions, e.g. Cu2+, Mg2+, Zn2+, Ca2+, at levels of 1-2 atoms per mol detected in the MoFe protein, no evidence for specific requirement, except for Mg2+ in MgATP complex, of any of these metals | Bradyrhizobium japonicum | |
additional information | other metal ions, e.g. Cu2+, Mg2+, Zn2+, Ca2+, at levels of 1-2 atoms per mol detected in the MoFe protein, no evidence for specific requirement, except for Mg2+ in MgATP complex, of any of these metals | Klebsiella pneumoniae | |
additional information | other metal ions, e.g. Cu2+, Mg2+, Zn2+, Ca2+, at levels of 1-2 atoms per mol detected in the MoFe protein, no evidence for specific requirement, except for Mg2+ in MgATP complex, of any of these metals | Clostridium pasteurianum | |
additional information | other metal ions, e.g. Cu2+, Mg2+, Zn2+, Ca2+, at levels of 1-2 atoms per mol detected in the MoFe protein, no evidence for specific requirement, except for Mg2+ in MgATP complex, of any of these metals | Azotobacter vinelandii | |
additional information | other metal ions, e.g. Cu2+, Mg2+, Zn2+, Ca2+, at levels of 1-2 atoms per mol detected in the MoFe protein, no evidence for specific requirement, except for Mg2+ in MgATP complex, of any of these metals | Paenibacillus polymyxa | |
additional information | other metal ions, e.g. Cu2+, Mg2+, Zn2+, Ca2+, at levels of 1-2 atoms per mol detected in the MoFe protein, no evidence for specific requirement, except for Mg2+ in MgATP complex, of any of these metals | Rhodospirillum rubrum | |
additional information | other metal ions, e.g. Cu2+, Mg2+, Zn2+, Ca2+, at levels of 1-2 atoms per mol detected in the MoFe protein, no evidence for specific requirement, except for Mg2+ in MgATP complex, of any of these metals | Allochromatium vinosum | |
additional information | other metal ions, e.g. Cu2+, Mg2+, Zn2+, Ca2+, at levels of 1-2 atoms per mol detected in the MoFe protein, no evidence for specific requirement, except for Mg2+ in MgATP complex, of any of these metals | Bradyrhizobium lupini | |
additional information | other metal ions, e.g. Cu2+, Mg2+, Zn2+, Ca2+, at levels of 1-2 atoms per mol detected in the MoFe protein, no evidence for specific requirement, except for Mg2+ in MgATP complex, of any of these metals | Anabaena cylindrica | |
additional information | other metal ions, e.g. Cu2+, Mg2+, Zn2+, Ca2+, at levels of 1-2 atoms per mol detected in the MoFe protein, no evidence for specific requirement, except for Mg2+ in MgATP complex, of any of these metals | Azotobacter chroococcum | |
additional information | other metal ions, e.g. Cu2+, Mg2+, Zn2+, Ca2+, at levels of 1-2 atoms per mol detected in the MoFe protein, no evidence for specific requirement, except for Mg2+ in MgATP complex, of any of these metals | Corynebacterium flavescens |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
40000 | - |
Fe protein, ultracentrifugation | Clostridium pasteurianum |
40000 | 74000 | Fe protein: various methods, overview | Bradyrhizobium japonicum |
40000 | 74000 | Fe protein: various methods, overview | Klebsiella pneumoniae |
40000 | 74000 | Fe protein: various methods, overview | Clostridium pasteurianum |
40000 | 74000 | Fe protein: various methods, overview | Azotobacter vinelandii |
40000 | 74000 | Fe protein: various methods, overview | Bradyrhizobium lupini |
51000 | - |
Fe protein, gel filtration | Bradyrhizobium japonicum |
56000 | - |
Fe protein, gel filtration | Clostridium pasteurianum |
62000 | - |
Fe protein, gel filtration | Klebsiella pneumoniae |
64000 | - |
Fe protein, gel filtration | Azotobacter vinelandii |
64000 | - |
Fe protein, gel filtration | Azotobacter chroococcum |
65000 | - |
Fe protein, gel filtration | Bradyrhizobium lupini |
68200 | - |
Fe protein, ultracentrifugation | Klebsiella pneumoniae |
160000 | - |
MoFe protein, estimation from Mo content, ultracentrifugation | Allochromatium vinosum |
160000 | 270000 | MoFe protein: various methods, overview | Bradyrhizobium japonicum |
160000 | 270000 | MoFe protein: various methods, overview | Klebsiella pneumoniae |
160000 | 270000 | MoFe protein: various methods, overview | Clostridium pasteurianum |
160000 | 270000 | MoFe protein: various methods, overview | Azotobacter vinelandii |
160000 | 270000 | MoFe protein: various methods, overview | Allochromatium vinosum |
160000 | 270000 | MoFe protein: various methods, overview | Bradyrhizobium lupini |
160000 | 270000 | MoFe protein: various methods, overview | Azotobacter chroococcum |
200000 | - |
- |
Clostridium pasteurianum |
200000 | - |
MoFe protein, ultracentrifugation | Bradyrhizobium japonicum |
200000 | - |
MoFe protein, ultracentrifugation | Klebsiella pneumoniae |
270000 | - |
MoFe protein, ultracentrifugation | Azotobacter vinelandii |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | Bradyrhizobium japonicum | - |
8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | Klebsiella pneumoniae | - |
8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | Clostridium pasteurianum | - |
8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | Azotobacter vinelandii | - |
8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | Paenibacillus polymyxa | - |
8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | Rhodospirillum rubrum | - |
8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | Allochromatium vinosum | - |
8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | Bradyrhizobium lupini | - |
8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | Anabaena cylindrica | - |
8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | Azotobacter chroococcum | - |
8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | Corynebacterium flavescens | - |
8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Allochromatium vinosum | - |
- |
- |
Anabaena cylindrica | - |
- |
- |
Azotobacter chroococcum | - |
- |
- |
Azotobacter vinelandii | - |
- |
- |
Bradyrhizobium japonicum | - |
- |
- |
Bradyrhizobium lupini | - |
- |
- |
Clostridium pasteurianum | - |
- |
- |
Corynebacterium flavescens | - |
- |
- |
Klebsiella pneumoniae | - |
- |
- |
Paenibacillus polymyxa | - |
- |
- |
Rhodospirillum rubrum | - |
- |
- |
Oxidation Stability | Organism |
---|---|
extreme sensitivity to O2 | Bradyrhizobium japonicum |
extreme sensitivity to O2 | Klebsiella pneumoniae |
extreme sensitivity to O2 | Clostridium pasteurianum |
extreme sensitivity to O2 | Azotobacter vinelandii |
extreme sensitivity to O2 | Paenibacillus polymyxa |
extreme sensitivity to O2 | Rhodospirillum rubrum |
extreme sensitivity to O2 | Allochromatium vinosum |
extreme sensitivity to O2 | Bradyrhizobium lupini |
extreme sensitivity to O2 | Anabaena cylindrica |
extreme sensitivity to O2 | Azotobacter chroococcum |
extreme sensitivity to O2 | Corynebacterium flavescens |
Reaction | Comment | Organism | Reaction ID |
---|---|---|---|
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | catalytic mechanism | Bradyrhizobium japonicum | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | catalytic mechanism | Klebsiella pneumoniae | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | catalytic mechanism | Clostridium pasteurianum | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | catalytic mechanism | Azotobacter vinelandii | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | catalytic mechanism | Paenibacillus polymyxa | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | catalytic mechanism | Rhodospirillum rubrum | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | catalytic mechanism | Allochromatium vinosum | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | catalytic mechanism | Bradyrhizobium lupini | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | catalytic mechanism | Anabaena cylindrica | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | catalytic mechanism | Azotobacter chroococcum | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | catalytic mechanism | Corynebacterium flavescens | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | enzyme is composed of 2 metalloproteins: component I MoFe protein and component II Fe protein | Bradyrhizobium japonicum | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | enzyme is composed of 2 metalloproteins: component I MoFe protein and component II Fe protein | Klebsiella pneumoniae | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | enzyme is composed of 2 metalloproteins: component I MoFe protein and component II Fe protein | Clostridium pasteurianum | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | enzyme is composed of 2 metalloproteins: component I MoFe protein and component II Fe protein | Azotobacter vinelandii | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | enzyme is composed of 2 metalloproteins: component I MoFe protein and component II Fe protein | Paenibacillus polymyxa | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | enzyme is composed of 2 metalloproteins: component I MoFe protein and component II Fe protein | Rhodospirillum rubrum | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | enzyme is composed of 2 metalloproteins: component I MoFe protein and component II Fe protein | Allochromatium vinosum | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | enzyme is composed of 2 metalloproteins: component I MoFe protein and component II Fe protein | Bradyrhizobium lupini | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | enzyme is composed of 2 metalloproteins: component I MoFe protein and component II Fe protein | Anabaena cylindrica | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | enzyme is composed of 2 metalloproteins: component I MoFe protein and component II Fe protein | Azotobacter chroococcum | |
4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | enzyme is composed of 2 metalloproteins: component I MoFe protein and component II Fe protein | Corynebacterium flavescens |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
additional information | - |
- |
Bradyrhizobium japonicum |
additional information | - |
- |
Klebsiella pneumoniae |
additional information | - |
- |
Clostridium pasteurianum |
additional information | - |
- |
Azotobacter vinelandii |
additional information | - |
- |
Paenibacillus polymyxa |
additional information | - |
- |
Rhodospirillum rubrum |
additional information | - |
- |
Allochromatium vinosum |
additional information | - |
- |
Bradyrhizobium lupini |
additional information | - |
- |
Anabaena cylindrica |
additional information | - |
- |
Azotobacter chroococcum |
additional information | - |
- |
Corynebacterium flavescens |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | - |
Bradyrhizobium japonicum | 8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | - |
Klebsiella pneumoniae | 8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | - |
Clostridium pasteurianum | 8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | - |
Azotobacter vinelandii | 8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | - |
Paenibacillus polymyxa | 8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | - |
Rhodospirillum rubrum | 8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | - |
Allochromatium vinosum | 8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | - |
Bradyrhizobium lupini | 8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | - |
Anabaena cylindrica | 8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | - |
Azotobacter chroococcum | 8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? | |
8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O | - |
Corynebacterium flavescens | 8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate | - |
? |
Subunits | Comment | Organism |
---|---|---|
dimer | - |
Bradyrhizobium japonicum |
dimer | - |
Klebsiella pneumoniae |
dimer | - |
Clostridium pasteurianum |
dimer | - |
Azotobacter vinelandii |
dimer | - |
Paenibacillus polymyxa |
dimer | - |
Rhodospirillum rubrum |
dimer | - |
Allochromatium vinosum |
dimer | - |
Bradyrhizobium lupini |
dimer | - |
Anabaena cylindrica |
dimer | - |
Azotobacter chroococcum |
dimer | - |
Corynebacterium flavescens |
tetramer | - |
Bradyrhizobium japonicum |
tetramer | - |
Klebsiella pneumoniae |
tetramer | - |
Clostridium pasteurianum |
tetramer | - |
Azotobacter vinelandii |
tetramer | - |
Paenibacillus polymyxa |
tetramer | - |
Rhodospirillum rubrum |
tetramer | - |
Allochromatium vinosum |
tetramer | - |
Bradyrhizobium lupini |
tetramer | - |
Anabaena cylindrica |
tetramer | - |
Azotobacter chroococcum |
tetramer | - |
Corynebacterium flavescens |