Characterization of a coproporphyrin-protein complex from Rhodobacter capsulatus
- 1 June 1991
- journal article
- Published by Oxford University Press (OUP) in FEMS Microbiology Letters
- Vol. 81 (1) , 43-47
- https://doi.org/10.1016/0378-1097(91)90468-p
Abstract
Rhodobacter capsulatus strain AJB530 excretes large amounts of coproporphyrin into the culture supernatant. The coproporphyrin was precipitable with ammonium sulfate, suggesting that it was part of a macromolecular complex. Analysis of an ammonium sulfate fraction indicated that the coproporphyrin was bound to a 66-kDa protein with a pI' of 4.0. The same protein was found in the culture supernatant of the bch+ strain PAS100.Keywords
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