CATH Classification

Domain Context

CATH Clusters

Superfamily Sulfite Reductase Hemoprotein;Domain 2
Functional Family

Enzyme Information

1.8.7.1
Assimilatory sulfite reductase (ferredoxin).
based on mapping to UniProt P9WJ03
Hydrogen sulfide + 6 oxidized ferredoxin [iron-sulfur] cluster + 3 H(2)O = sulfite + 6 reduced ferredoxin [iron-sulfur] cluster + 6 H(+).
-!- The enzyme participates in sulfate assimilation. -!- While it is usually found in cyanobacteria, plants and algae, it has also been reported in bacteria (cf. EC 1.8.1.2). -!- Formerly EC 1.8.99.1.

UniProtKB Entries (1)

P9WJ03
SIR_MYCTU
Mycobacterium tuberculosis H37Rv
Sulfite reductase [ferredoxin]

PDB Structure

PDB 1ZJ8
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Siroheme- and [Fe4-S4]-dependent NirA from Mycobacterium tuberculosis Is a Sulfite Reductase with a Covalent Cys-Tyr Bond in the Active Site
Schnell, R., Sandalova, T., Hellman, U., Lindqvist, Y., Schneider, G.
J.Biol.Chem.