Properties ofN-bromosuccinimide modified cytochrome oxidase

Cytochrome c modified by digestion with proteolytic enzymes. 2. Properties of pepsin-modified cytochrome c.

Studies on cytochrome oxidase. IV. The cytochrome oxidase activity.

where the activity is determined by measuring the rate of oxidation of reduced cytochrome c. Smith (6, 7), Conrad (8, 9), Wainio (10-13) et ~2. have extensively investigated the effect of various factors on the cytochrome oxidase activity measured by System 2 with soluble and insoluble preparations of cytochrome oxidase, whereas among those (14-30) who have employed System 1, Slater (5), using ...

Purification and properties of cytochrome oxidase from Pseudomonas aeruginosa.

Yaoi and Tamiya (1) found that Escherichia coli and Shigella dysenteriae, grown aerobically, exhibited an absorption band which differed from those of previously described cytochromes in that it lay within the red region of the spectrum. Keilin (2) attributed this band to a cytochrome component, designated a2. Warburg et al. (3, 4), Ncgelein and Gerischcr (5), Tamiya and Yamagutchi (6), and Fuj...

The Spectra and Some Properties of Cytochrome Oxidase Components.

Although the original observations of Keilin and Hartree (1) have been strongly supported by later workers (2-4), their concept that the cytochrome oxidase consists of two components, a and ~3, has recently come under discussion (5, 6). The evidence for the separate existence of a and u3 is largely spectrophotometric, and Yonetani (3) has published detailed spectra for a and a3 based on the pri...

The Cytochrome C-cytochrome Oxidase Complex

In the preceding paper the oxidation of substrates by “indophenol oxidase” was demonstrated to be a joint action of cytochrome and cytochrome oxidase. It was further shown that with a given amount of oxidase the velocity of hydroquinone oxidation reached a maximum as the amount of added cytochrome was increased. The latter fact immediately suggested the probability that the rapid aerobic oxidat...