5.B.13. The One Electron Transmembrane Transfer Complex (HmcABCDEF) Family
This family of electron carrier systems has been implicated in transfer of single electrons from periplasmic H2 oxidation to sulfate reduction in the cytoplasm of Desulfovibrio species (Pires et al. 2006).
The transmembrane electron carrier system, HmcABCDEF (Pires et al. 2006). Probably transfers electrons from the periplasm to the cytoplasm; involved in H2 oxidation (periplasm) and sulfate reduction (cytoplasm). HmcA of 545 aas and 1 TMS; similar to proteins in TC#s 9.B.11 and 9.B.5. HmcB of 370 aas and 2 TMSs; similar to proteins in TC#s 5.A.3 and 5.B.12. HmcC of 388 aas; similar to proteins in TC# 5.A.3. HmcD of 47 aas and 1 TMS. TmcE of 226 aas and 5 or 6 TMSs; similar to proteins in TC#s 5.B.11 and 3.D.7, and possibly to proteins in 5.B.3. TmcF of 461 aas and 0 TMSs; similar to proteins in TC#s 5.B.11, 5.B.12 and 3.D.7.
HmcABCDEF of Desulfovibrio vulgaris
The HmcABCDEF transmembrane electron flow complex (Dörries et al. 2016).
HmcABCDEF of Desulfococcus multivorans
HmcA, AOY57585, 543 aas and 1 TMS
HmcB, AOY57586. 318 aas and 1 - 3 TMSs
HmcC, AOY57587, 409 aas and 10 TMSs
HmcD, AOY57588, 43 aas and 1 TMS
HmcE, AOY57589, 229 aas and 5 TMSs
HmcF, AOY57590, 464 aas, a cytoplasdmic iron-sulfur protein