TIGR02964, conserved_hypothetical_protein, xanthine dehydrogenase accessory protein XdhC. Members of this protein family are the accessory protein XdhC for insertion of the molybdenum cofactor into the xanthine dehydrogenase large chain, XdhB, in bacteria. This protein is not part of the mature xanthine dehydrogenase. Xanthine dehydrogenase is an enzyme for purine catabolism, from other purines to xanthine to urate to further breakdown products. [Protein fate, Protein folding and stabilization, Purines, pyrimidines, nucleosides, and nucleotides, Other].
TIGR02801, Protein_TolR, TolR protein. The model describes the inner membrane protein TolR, part of the TolR/TolQ complex that transduces energy from the proton-motive force, through TolA, to an outer membrane complex made up of TolB and Pal (peptidoglycan-associated lipoprotein). The complex is required to maintain outer membrane integrity, and defects may cause a defect in the import of some organic compounds in addition to the resulting morphologic. While several gene pairs homologous to talR and tolQ may be found in a single genome, but the scope of this model is set to favor finding only bone fide TolR, supported by operon structure as well as by score. [Transport and binding proteins, Other, Cellular processes, Pathogenesis].
TIGR02796, Protein_TolQ, TolQ protein. TolQ is one of the essential components of the Tol-Pal system. Together with TolR, it harnesses protonmotive force to energize TolA, which spans the periplasm to reach the complex of TolB and Pal at the outer member. The tol-pal system proves to be important for maintaining outer membrane integrity. Gene pairs similar to the TolQ and TolR gene pair often number several per genome, but this model describes specificially TolQ per se, as found in tol-pal operons. A close homolog, excluded from this model, is ExbB of the ExbB/ExbD/TonB protein complex, which powers transport of siderophores and vitamin B12 across the bacterial outer membrane. The Tol-Pal system is exploited by colicin and filamentous phage DNA to enter the cell. It is also implicated in pathogenesis in several bacterial species [Transport and binding proteins, Other, Cellular processes, Pathogenesis].
pfam02578, Cu-oxidase_4, Multi-copper polyphenol oxidoreductase laccase. Laccases are multi-copper oxidoreductases able to oxidize a wide variety of phenolic and non-phenolic compounds and are widely distributed among both prokaryotes and eukaryotes. There are two main active catalytic sites with conserved histidines that are capable of binding four copper atoms.
TIGR02965, xanthine_dehydrogenase, xanthine dehydrogenase, molybdopterin binding subunit. Members of the protein family are the molybdopterin-containing large subunit (or, in, eukaryotes, the molybdopterin-binding domain) of xanthine dehydrogenase, and enzyme that reduces the purine pool by catabolizing xanthine to urate. This model is based primarily on bacterial sequences; it does not manage to include all eukaryotic xanthine dehydrogenases and thereby discriminate them from the closely related enzyme aldehyde dehydrogenase. [Purines, pyrimidines, nucleosides, and nucleotides, Other].
TIGR02794, Protein_TolA, TolA protein. TolA couples the inner membrane complex of itself with TolQ and TolR to the outer membrane complex of TolB and OprL (also called Pal). Most of the length of the protein consists of low-complexity sequence that may differ in both length and composition from one species to another, complicating efforts to discriminate TolA (the most divergent gene in the tol-pal system) from paralogs such as TonB. Selection of members of the seed alignment and criteria for setting scoring cutoffs are based largely conserved operon struction. //The Tol-Pal complex is required for maintaining outer membrane integrity. Also involved in transport (uptake) of colicins and filamentous DNA, and implicated in pathogenesis. Transport is energized by the proton motive force. TolA is an inner membrane protein that interacts with periplasmic TolB and with outer membrane porins ompC, phoE and lamB. [Transport and binding proteins, Other, Cellular processes, Pathogenesis].
TIGR02800, Protein_TolB, tol-pal system beta propeller repeat protein TolB. Members of this protein family are the TolB periplasmic protein of Gram-negative bacteria. TolB is part of the Tol-Pal (peptidoglycan-associated lipoprotein) multiprotein complex, comprising five envelope proteins, TolQ, TolR, TolA, TolB and Pal, which form two complexes. The TolQ, TolR and TolA inner-membrane proteins interact via their transmembrane domains. The {beta}-propeller domain of the periplasmic protein TolB is responsible for its interaction with Pal. TolB also interacts with the outer-membrane peptidoglycan-associated proteins Lpp and OmpA. TolA undergoes a conformational change in response to changes in the proton-motive force, and interacts with Pal in an energy-dependent manner. The C-terminal periplasmic domain of TolA also interacts with the N-terminal domain of TolB. The Tol-PAL system is required for bacterial outer membrane integrity. E. coli TolB is involved in the tonB-independent uptake of group A colicins (colicins A, E1, E2, E3 and K), and is necessary for the colicins to reach their respective targets after initial binding to the bacteria. It is also involved in uptake of filamentous DNA. Study of its structure suggest that the TolB protein might be involved in the recycling of peptidoglycan or in its covalent linking with lipoproteins. The Tol-Pal system is also implicated in pathogenesis of E. coli, Haemophilus ducreyi , Salmonella enterica and Vibrio cholerae, but the mechanism(s) is unclear. [Transport and binding proteins, Other, Cellular processes, Pathogenesis].
TIGR02963, Includes:_Xanthine_dehydrogenase, xanthine dehydrogenase, small subunit. Members of this protein family are the small subunit (or, in eukaryotes, the N-terminal domain) of xanthine dehydrogenase, an enzyme of purine catabolism via urate. The small subunit contains both an FAD and a 2Fe-2S cofactor. Aldehyde oxidase (retinal oxidase) appears to have arisen as a neofunctionalization among xanthine dehydrogenases in eukaryotes and [Purines, pyrimidines, nucleosides, and nucleotides, Other].
The bacterium proteins that are colored denote the protein is present at specific phage-related keywords (such as 'capsid', 'head', 'integrase', 'plate', 'tail', 'fiber', 'coat', 'transposase', 'portal', 'terminase', 'protease' or 'lysin' and 'tRNA')
The bacterium proteins that are colored denote the protein is present at specific phage-related keywords (such as 'capsid', 'head', 'integrase', 'plate', 'tail', 'fiber', 'coat', 'transposase', 'portal', 'terminase', 'protease' or 'lysin' and 'tRNA')
