Aubert C, Leroy G, Bianco P, Forest E, Bruschi M, Dolla A
Unité de Bioénergétique et Ingéniérie des Protéines, IFRC1-CNRS, Marseille, France.
Biochem Biophys Res Commun. 1998 Jan 6;242(1):213-8. doi: 10.1006/bbrc.1997.7852.
A monoheme cytochrome c553 and a hexadecaheme high molecular weight cytochrome (Hmc) have been isolated and characterized from the sulfate-reducing bacteria Desulfovibrio desulfuricans G201, in addition to the tetraheme cytochrome c3 (Mr 13000) that has been previously described. Both cytochromes are homologous with respect to several biochemical properties to the corresponding cytochromes found in other Desulfovibrio species. However, they are acidic proteins while the corresponding molecules, isolated from other Desulfovibrio species, are relatively more basic. The D. desulfuricans cytochrome content appears identical to that of D. vulgaris Hildenborough. Isolation of these cytochromes from a Desulfovibrio desulfuricans strain is of great interest in order to get more insight on the physiological function of these molecules.
除了先前已描述的四血红素细胞色素c3（分子量13000）外，还从硫酸盐还原菌脱硫脱硫弧菌G201中分离并鉴定出了一种单血红素细胞色素c553和一种十六血红素高分子量细胞色素（Hmc）。这两种细胞色素在若干生化特性方面与其他脱硫弧菌属物种中发现的相应细胞色素同源。然而，它们是酸性蛋白质，而从其他脱硫弧菌属物种中分离出的相应分子则相对更具碱性。脱硫脱硫弧菌的细胞色素含量似乎与希登伯勒脱硫弧菌相同。从脱硫脱硫弧菌菌株中分离这些细胞色素对于更深入了解这些分子的生理功能具有重要意义。
