FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W26319369> ?p ?o ?g. }

• W26319369 endingPage "218" @default.
• W26319369 startingPage "203" @default.
• W26319369 abstract "1. The →H+/e− quotients for proton release from mitochondria associated with electron flow from succinate and duroquinol to O2, ferricyanide or ferricytochrome c, and from NNN′N′-tetramethyl-p-phenylenediamine+ascorbate to O2, were determined from rate measurements of electron flow and proton translocation. 2. Care was taken to avoid, or to take into account, unrelated electron flow and proton translocation, which might take place in addition to the oxido-reductions that were the subject of our analysis. Spectrophotometric techniques were chosen to provide accurate measurement of the rate of consumption of oxidants and reductants. The rate of proton translocation was measured with fast pH meters with a precision of 10−3 pH unit. 3. The →H+/O quotient for succinate or duroquinol oxidation was, at neutral pH, 4, when computed on the basis of spectrophotometric determinations of the rate of O2 consumption or duroquinol oxidation. Higher →H+/O quotients for succinate oxidation, obtained from polarographic measurements of O2 consumption, resulted from underestimation of the respiratory rate. 4. The →H+/2e− quotient for electron flow from succinate and duroquinol to ferricyanide or ferricytochrome c ranged from 3.9 to 3.6. 5. Respiration elicited by NNN′N′-tetramethyl-p-phenylenediamine+ascorbate by antimycin-inhibited mitochondria resulted in extra proton release in addition to that produced for oxidation of ascorbate to dehydroascorbate. Accurate spectrophotometric measurement of respiration showed that the →H+/e− ratio was only 0.25 and not 0.7–1.0 as obtained with the inadequate polarographic assay of respiration. Proton release was practically suppressed when mitochondria were preincubated aerobically in the absence of antimycin. Furthermore, the rate of scalar proton consumption for water production was lower than that expected from the stoicheiometry. Thus the extra proton release observed during respiration elicited by NNN′N′-tetramethyl-p-phenylenediamine+ascorbate is caused by oxidation of endogenous hydrogenated reductants. 6. It is concluded that (i) the →H+/O quotient for the cytochrome system is, at neutral pH, 4 and not 6 or 8 as reported by others; (ii) all the four protons are released during electron flow from quinol to cytochrome c; (iii) the oxidase transfers electrons from cytochrome c to protons from the matrix aqueous phase and does not pump protons from the matrix to the outer aqueous phase." @default.
• W26319369 created "2016-06-24" @default.
• W26319369 creator A5008985346 @default.
• W26319369 creator A5018978340 @default.
• W26319369 creator A5020142586 @default.
• W26319369 creator A5031170312 @default.
• W26319369 creator A5039786016 @default.
• W26319369 creator A5049073877 @default.
• W26319369 creator A5054222859 @default.
• W26319369 creator A5057883248 @default.
• W26319369 date "1980-10-15" @default.
• W26319369 modified "2023-10-15" @default.
• W26319369 title "The H+/e− stoicheiometry of respiration-linked proton translocation in the cytochrome system of mitochondria" @default.
• W26319369 cites W119802141 @default.
• W26319369 cites W1246495107 @default.
• W26319369 cites W1257755608 @default.
• W26319369 cites W129442644 @default.
• W26319369 cites W1466099901 @default.
• W26319369 cites W1484478520 @default.
• W26319369 cites W1489565608 @default.
• W26319369 cites W1527397773 @default.
• W26319369 cites W1542197083 @default.
• W26319369 cites W1607298047 @default.
• W26319369 cites W1984690723 @default.
• W26319369 cites W1986508655 @default.
• W26319369 cites W1991533792 @default.
• W26319369 cites W1992285589 @default.
• W26319369 cites W1993035984 @default.
• W26319369 cites W2003933333 @default.
• W26319369 cites W2013320188 @default.
• W26319369 cites W2022975994 @default.
• W26319369 cites W2024665202 @default.
• W26319369 cites W2029284357 @default.
• W26319369 cites W2033543736 @default.
• W26319369 cites W2033732709 @default.
• W26319369 cites W2036763358 @default.
• W26319369 cites W2037607943 @default.
• W26319369 cites W2042096598 @default.
• W26319369 cites W2061648398 @default.
• W26319369 cites W2064206556 @default.
• W26319369 cites W2070364927 @default.
• W26319369 cites W2071069897 @default.
• W26319369 cites W2074305519 @default.
• W26319369 cites W2076014585 @default.
• W26319369 cites W2077996001 @default.
• W26319369 cites W2084475513 @default.
• W26319369 cites W2101869512 @default.
• W26319369 cites W2102944990 @default.
• W26319369 cites W2235424244 @default.
• W26319369 cites W2235815764 @default.
• W26319369 cites W2255498733 @default.
• W26319369 cites W2272748618 @default.
• W26319369 cites W2316513465 @default.
• W26319369 cites W2364096548 @default.
• W26319369 cites W2413138043 @default.
• W26319369 cites W2417555387 @default.
• W26319369 cites W2464710422 @default.
• W26319369 cites W2742650871 @default.
• W26319369 doi "https://doi.org/10.1042/bj1920203" @default.
• W26319369 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/1162323" @default.
• W26319369 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/6272694" @default.
• W26319369 hasPublicationYear "1980" @default.
• W26319369 type Work @default.
• W26319369 sameAs 26319369 @default.
• W26319369 citedByCount "59" @default.
• W26319369 countsByYear W263193692023 @default.
• W26319369 crossrefType "journal-article" @default.
• W26319369 hasAuthorship W26319369A5008985346 @default.
• W26319369 hasAuthorship W26319369A5018978340 @default.
• W26319369 hasAuthorship W26319369A5020142586 @default.
• W26319369 hasAuthorship W26319369A5031170312 @default.
• W26319369 hasAuthorship W26319369A5039786016 @default.
• W26319369 hasAuthorship W26319369A5049073877 @default.
• W26319369 hasAuthorship W26319369A5054222859 @default.
• W26319369 hasAuthorship W26319369A5057883248 @default.
• W26319369 hasBestOaLocation W263193692 @default.
• W26319369 hasConcept C116270902 @default.
• W26319369 hasConcept C121332964 @default.
• W26319369 hasConcept C179104552 @default.
• W26319369 hasConcept C182215343 @default.
• W26319369 hasConcept C185592680 @default.
• W26319369 hasConcept C188518856 @default.
• W26319369 hasConcept C24840226 @default.
• W26319369 hasConcept C2777411777 @default.
• W26319369 hasConcept C28859421 @default.
• W26319369 hasConcept C54516573 @default.
• W26319369 hasConcept C55493867 @default.
• W26319369 hasConcept C59822182 @default.
• W26319369 hasConcept C62520636 @default.
• W26319369 hasConcept C86803240 @default.
• W26319369 hasConcept C98488077 @default.
• W26319369 hasConceptScore W26319369C116270902 @default.
• W26319369 hasConceptScore W26319369C121332964 @default.
• W26319369 hasConceptScore W26319369C179104552 @default.
• W26319369 hasConceptScore W26319369C182215343 @default.
• W26319369 hasConceptScore W26319369C185592680 @default.
• W26319369 hasConceptScore W26319369C188518856 @default.
• W26319369 hasConceptScore W26319369C24840226 @default.

• next