1H, 13C, and 15N backbone, side-chain, and heme chemical shift assignments for oxidized and reduced forms of the monoheme c-type cytochrome ApcA isolated from the acidophilic metal-reducing bacterium Acidiphilium cryptum.
Journal Article
·
· Biomolecular NMR Assignments, 5(1):89-92
We report the 1H, 13C, and 15N chemical shift assignments of both oxidized and reduced forms of an abundant periplasmic c-type cytochrome, designated ApcA, from the acidophilic gram-negative facultatively anaerobic metal-reducing alpha-proteobacterium Acidiphilium cryptum. These resonance assignments prove that ApcA is a monoheme cytochrome c2 and the product of the Acry_2099 gene. An absence of resonance peaks in the NMR spectra for the 21 N-terminal residues suggests that a predicted N-terminal signal sequence is cleaved. We also describe the preparation and purification of the protein in labeled form from laboratory cultures of A. cryptum growing on 13C- and 15N- labeled substrates.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1009303
- Report Number(s):
- PNNL-SA-74669; 26709; 39728; KP1704020; TRN: US201106%%509
- Journal Information:
- Biomolecular NMR Assignments, 5(1):89-92, Vol. 5, Issue 1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
59 BASIC BIOLOGICAL SCIENCES
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
CHEMICAL SHIFT
CYTOCHROMES
HEME
NMR SPECTRA
PROTEINS
PURIFICATION
RESIDUES
RESONANCE
SUBSTRATES
EMSL
NMR spectroscopy
protein structure determination
microbe-mineral interface
electron transport
metal-reducing bacteria
Environmental Molecular Sciences Laboratory
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
CHEMICAL SHIFT
CYTOCHROMES
HEME
NMR SPECTRA
PROTEINS
PURIFICATION
RESIDUES
RESONANCE
SUBSTRATES
EMSL
NMR spectroscopy
protein structure determination
microbe-mineral interface
electron transport
metal-reducing bacteria
Environmental Molecular Sciences Laboratory