Results 41 to 50 of about 75,359 (355)

The interactions of cytochrome c and porphyrin cytochrome c with cytochrome c oxidase. The resting, reduced and pulsed enzymes [PDF]

open access: yesEuropean Journal of Biochemistry, 1986
Cytochrome c oxidase forms tight binding complexes with the cytochrome c analog, porphyrin cytochrome c. The behaviour of the reduced and pulsed forms of the oxidase with porphyrin cytochrome c have been followed as functions of ionic strength; this behaviour has been compared with that of the resting oxidase [Kornblatt, Hui Bon Hoa and English (1984 ...
J A, Kornblatt, H A, Luu
openaire   +2 more sources

The influence of carboxymethylcellulose, xanthan and guar-gum addition in bread dough before freezing on metabolism and viability of Saccharomyces cerevisiae [PDF]

open access: yesActa Periodica Technologica, 2009
Doughs were prepared with different concentrations of carboxymethylcellulose, xanthan, and guar-gum (0.1, 0.2 and 0.3% in doughs), freezed at -20°C and analyzed after 0, 7, 15 and 30 days. Pure Saccharomyces cerevisiae culture was isolated from dough and
Kocić-Tanackov Sunčica D.   +4 more
doaj   +1 more source

Investigation of the Molecular Mechanisms of the Eukaryotic Cytochrome-c Maturation System

open access: yesBiomolecules, 2022
Cytochromes-c are ubiquitous heme proteins with enormous impact at the cellular level, being key players in metabolic processes such as electron transfer chains and apoptosis.
Ana V. Silva   +4 more
doaj   +1 more source

A functional description of CymA, an electron-transfer hub supporting anaerobic respiratory flexibility in Shewanella [PDF]

open access: yes, 2012
CymA (tetrahaem cytochrome c) is a member of the NapC/NirT family of quinol dehydrogenases. Essential for the anaerobic respiratory flexibility of shewanellae, CymA transfers electrons from menaquinol to various dedicated systems for the reduction of ...
Butt, Julea N.   +10 more
core   +1 more source

Amino Acid Substitutions in the Non-Ordered Ω-Loop 70–85 Affect Electron Transfer Function and Secondary Structure of Mitochondrial Cytochrome c

open access: yesCrystals, 2021
The secondary structure of horse cytochrome c with mutations in the P76GTKMIFA83 site of the Ω-loop, exhibiting reduced efficiency of electron transfer, were studied.
Rita V. Chertkova   +11 more
doaj   +1 more source

Resonance Raman Spectroscopy Reveals that Substrate Structure Selectively Impacts the Heme-Bound Diatomic Ligands of CYP17 [PDF]

open access: yes, 2013
An important function of steroidogenic cytochromes P450 is the transformation of cholesterol to produce androgens, estrogens, and the corticosteroids.
Gregory, Michael C.   +3 more
core   +2 more sources

Funneled angle landscapes for helical proteins [PDF]

open access: yes, 2020
We use crystallographic data for four helical iron proteins (cytochrome c-b₅₆₂, cytochrome c′, sperm whale myoglobin, human cytoglobin) to calculate radial and angular signatures as each unfolds from the native state stepwise though four unfolded states.
Garza-López, Roberto A.   +2 more
core   +1 more source

Semi-Supervised Sparse Coding [PDF]

open access: yes, 2014
Sparse coding approximates the data sample as a sparse linear combination of some basic codewords and uses the sparse codes as new presentations. In this paper, we investigate learning discriminative sparse codes by sparse coding in a semi-supervised ...
Gao, Xin, Wang, Jim Jing-Yan
core   +2 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Successive translocation into and out of the mitochondrial matrix [PDF]

open access: yes, 1987
We investigated the import and sorting pathways of cytochrome b2 and cytochrome c1, which are functionally located in the intermembrane space of mitochondria.
Alt   +67 more
core   +1 more source

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