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DUF933 domain-containing protein
This domain is found at the C terminus of the YchF GTP-binding protein (Swiss:O13998) and is possibly related to the ubiquitin-like and MoaD/ThiS superfamilies. (from Pfam)
FeoB small GTPase domain-containing protein
Escherichia coli has an iron(II) transport system (feo) which may make an important contribution to the iron supply of the cell under anaerobic conditions [1]. FeoB has been identified as part of this transport system. FeoB is a large 700-800 amino acid integral membrane protein. The N terminus contains a P-loop motif suggesting that iron transport may be ATP dependent [1]. [1]. 8407793. Characterization of the ferrous iron uptake system of. Escherichia coli.. Kammler M, Schon C, Hantke K;. J Bacteriol 1993;175:6212-6219. (from Pfam)
GTPase
This HMM identifies the P-loop-containing domain of large numbers of GTPases with ribosome-associated functions, including many involved in ribosome maturation (Der, Era, etc), ribosome rescue (HflX), and protein translation (InfB, Tuf, PrfC).
redox-regulated ATPase YchF
redox-regulated ATPase YchF belongs to the Obg (GTPase) family, but actually prefers ATP, associates with ribosomes, and appears to be regulated by the redox state of the cell
YchF belongs to a larger family in which GTPase activity is expected, but actually prefers ATP. It is universal in bacterial genomes, associates with ribosomes, and appears to be regulated by the redox state of the cell.
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