LIS - Legume Information System
Information about legume traits for crop improvement
GlycineMine
v5.1.0.3
Glycine data from LIS
v5.1.0.3
Glycine data from LIS
| Type | Binding_site |
| Description | Nitrite reductases and bacterial sulphite reductases catalyse the 6-electron reduction of nitrite (sulphite) to ammonia (sulphide) []. On the basis of physiological function, 2 types of nitritereductase can be defined: the assimilatory type, which is involved in nitrate assimilation (denitrification); and the dissimilatory type, which is responsible for nitrate respiration function. Assimilatory nitritereductases contain a prosthetic group termed sirohaem (an iron tetra-hydroporphyrin of the isobacteriochlorintype, with 8 carboxylic acid-containing peripheral sidechains), and an iron-sulphur cluster. Similarly, there are 2 types of sulphite reductase: the assimilatory type, which participate in the synthesis of sulphur-containing compounds; and the dissimilatory type, which are terminal reductases in the reduction of sulphate. Assimilatory sulphite reductases can catalyse 6-electron reduction without the formation of free intermediates,while dissimilatory reductases can produce trithionate and thiosulphate in addition to sulphide. Both types of reductase contain sirohaem and iron-sulphur clusters. A region of sequence similarity, about 80amino acids long, is shared by assimilatory nitrite [ ] and sulphite reductases [, ]. Four conserved Cys residues are suggested to be involved in binding the sirohaem group and/or theiron-sulphur centre [ ]. |
| Short Name | NO2/SO3_Rdtase_FeS/sirohaem_BS |
