electron-transfer mediator in bacterial respiratory chain

Information obtained from PDB's Chemical Component Dictionary
at http://wwpdb-remediation.rutgers.edu/downloads.html
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3,3'-(7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-diyl)dipropanoic acid

3-[(5Z,10Z,14Z,19Z)-18-(2-carboxyethyl)-8,13-bis(ethenyl)-3,7,12,17-tetramethyl-21,23-dihydroporphyrin-2-yl]propanoic acid

The electron transfer complex between cytochrome c552 and the CuA domain of the Thermus thermophilus ba3 oxidase. A combined NMR and computational approach.

The first 2 residues (Met1 and Ala2) are recombinant artifacts.

A spontaneous Ala --> Thr mutation occurred at position 125 (123 according to the author sequence code).

1H and 15N assignment of cytochrome c552 from Thermus thermophilus in the
reduced state

Neidig, Geyer, Gorler, Antz, Saffrich, Beneicke, Kalbitzer