It receives an electron from each of four cytochrome c molecules, and transfers them to one oxygen molecule, converting molecular oxygen to two molecules of water.

Examples An important example is cytochrome c oxidase, the key enzyme that allows the body to employ oxygen in the generation of energy and the final component of the electron transfer chain.

Gene The gene is located near two cytochrome P450 pseudogenes on chromosome 22q13.1.

This gene is part of a cluster of cytochrome P450 genes on chromosome 7q21.1.

See also Cellular respiration Photosynthetic reaction centre Additional images References Further reading External links cytochrome bc 1 complex site (Edward A. Berry) at lbl.gov cytochrome bc 1 complex site (Antony R. Crofts) at uiuc.edu PROMISE Database cytochrome bc 1 complex at scripps.edu Interactive Molecular Model of Complex III (Requires MDL Chime) Calculated positions of bc1 and related complexes in membranes

An example of a group of enzymes involved in xenobiotic metabolism is hepatic microsomal cytochrome P450.

Cytochrome P450 enzymes also function to metabolize potentially toxic compounds, including drugs and products of endogenous metabolism such as bilirubin, principally in the liver.

Cytochrome P450 enzymes are present in most tissues of the body, and play important roles in hormone synthesis and breakdown (including estrogen and testosterone synthesis and metabolism), cholesterol synthesis, and vitamin D metabolism.

Based on the nature of the electron transfer proteins, CYPs can be classified into several groups Microsomal P450 systems in which electrons are transferred from NADPH via cytochrome P450 reductase (variously CPR, POR, or CYPOR).

The most sensitive targets of NO are aconitase, an enzyme that catalyzes the isomerization of citrate to isocitrate in the citric acid cycle, and cytochrome oxidase, the last enzyme in the respiratory electron transport chain of mitochondria.

C. C. Chapman

(c) Reletter former paragraphs (b) and (c) as (c) and (d) respectively.

(c)c. Country of final import

Doxygen supports multiple programming languages, in particular C , C, C , Objective C, Java, Perl, Python, IDL, VHDL, Fortran, Tcl and PHP.

(c)C. Meeting of 11 December 2003

C.(c) Meeting of 30 September 2004

Other documents (A C.1 60 1, A C.1 60 2, A C.1 60 3, A C.1 60 3 Add.1, A C.1 60 INF 1, A C.1 60 INF 2 and A C.1 60 INF 2 Add.1)

Other documents (A C.1 60 1, A C.1 60 2, A C.1 60 3, A C.1 60 INF 1 and A C.1 60 INF.2)

Fourth reports were submitted by Australia (CAT C 67 Add.7), Estonia (CAT C 80 Add.1), Hungary (CAT C 55 Add.10), Mexico (CAT C 55 Add.12), Netherlands (CAT C 67 Add.4), Russian Federation (CAT C 55 Add.11), Peru (CAT C 61 Add.2), Poland (CAT C 67 Add.5) and Portugal (CAT C 67 Add.6).

C. Programme area C Biosafety and the environment

C. Draft resolutions A C.2 60 L.26 and A C.2 60 L.44

Other documents (A C.1 60 1, A C.1 60 2, A C.1 60 3 and A C.1 60 INF 1)

Other documents (A C.1 60 1, A C.1 60 2, A C.1 60 3 and A C.1 60 INF 1)

Introduction of draft resolutions A C.3 60 L.12, A C.3 60 L.13, A C.3 60 L.14, A C.3 60 L.15, A C.3 60 L.16 and A C.3 60 L.17

C 1 C 1A Medium range military transport version.

C. Draft resolution A C.5 59 L.76

C. Draft resolution A C.3 60 L.26

C. Draft resolution A C.5 59 L.45

C

Fifth reports were submitted by Canada (CAT C 81 Add.3), Denmark (CAT C 81 Add.2), Luxembourg (CAT C 81 Add.3), Ukraine (CAT C 81 Add.1) and Norway (CAT C 81 Add.4).

(i) Reletter paragraph (c) as (c) (i), which should read

(c) Human resources development (A C.2 60 L.40)

Other documents (A C.1 60 1, A C.1 60 2 and A C.1 60 INF 1)

Add an expected accomplishment (c) reading (c) Improvement in efforts to diversify United Nations suppliers , and a corresponding indicator of achievement (c) reading (c) Number of new suppliers registered .

Introduction of draft resolutions A C.2 60 L.4, A C.2 60 L.5, A C.2 60 L.7 and A C.2 60 L.8

(a) Under Expected accomplishments , reletter paragraph (c) as (c) (i) and insert a new subparagraph (c) (ii), reading as follows

Fifth periodic report of Italy (CCPR C ITA 2004 5 CCPR C 84 L ITA CCPR C 79 Add.94)

(c) Human resources development (continued) (A C.2 60 L.49)

Level C

Resolution C

C. Registries

C. Mobility

C. Travel

C. Vegetation

(c) Tobacco