Identification of a 29 kDa protein in the envelope of Mycobacterium smegmatis as a putative ferri-exochelin receptor
Article Abstract:
The 29 kDa iron-regulated protein in the envelope of Mycobacterium smegmatis is a ferri-exochelin receptor. The protein forms a complex with 55Fe(III)-exochelin in an envelope preparation from cells lacking iron. The non-denaturing detergent CHAPS efficiently extracts the complex. Affinity chromatography of the complex using a ferri-exochelin-Sepharose 4B matrix results in retention of a 29 kDa and a 25 kDa protein. The 25 kDa protein probably functions in the formation and maintenance of the ferri-exochelin receptor.
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
The occurrence of carboxymycobactin, the siderophore of pathogenic mycobacteria, as a second extracellular siderophore in Mycobacterium smegmatis
Article Abstract:
Culture filtrates of the non-pathogen Mycobacterium smegmatis showed the occurrence of a carboxymycobactin as a second extracellular siderophore. As many as 12 similar molecules were produced, with various chain lengths that can be detected by HPLC or HPTLC. Its presence indicates a wider spread of the molecule than previously thought, despite its being a minor siderophore component as evidenced by the amount generated by M. smegmatis.
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
Polyadenylylation in mycobacteria: evidence for oligo(dT)-primed cDNA synthesis
Article Abstract:
Polyadenylylation of mRNA appears to be common in the mycobacteria. RNA polyadenylylation controls plasmid replication, modulates RNA stability and may participate in mRNA translation.
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 2000
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Identification of a novel group of bacteria in sludge from a deteriorated biological phosphorus removal reactor
- Abstracts: Identification of domains conferring G protein regulation on inward rectifier potassium channels. Strong voltage-dependent inward rectification of inward rectifier K+ channels is caused by intracellular spermine
- Abstracts: Isozyme variation among biological species in the Gibberella fujikuroi species complex (Fusarium section Liseola)
- Abstracts: Induction of apoptotic program in cell-free extracts: requirement for dATP and Cytochrome c. DFF, a heterodimeric protein that functions downstream of caspase-3 to trigger DNA fragmentation during apoptosis
- Abstracts: Characterization of epitopes involved in the neutralization of Pasteurella haemolytica serotype A1 leukotoxin