Families of transmembrane transporters selective for amino acids and their derivatives

Article Abstract:

This review describes 21 proton-motive-force-driven transmembrane carriers involved in the transportation of amino acids, small amines, polyamines, amides and peptides across cell membranes of the living cells. Results suggest that 11 of the 21 carriers occur in bacteria and archaea, 2 are restricted to eukaryotes and the rest occur ubiquitously.

Energy metabolism, Bioenergetics, Amino acids

---

The amino acid/polyamine/organocation (APC) superfamily of transporters specific for amino acids, polyamines and organocations

Article Abstract:

Research reveals 175 amino acid/polyamine/organocation superfamily of integral membrane proteins that mediate amino acid, polyamines and organocations transport acros cell membranes. Data indicate that majority of them exhibit uniform topology with 10 to 14 transmembrane alpha-helical spanners in a polypeptide chain.

Membrane proteins, Proteins, Protein conformation

---

TRAP transporters: an ancient family of extracytoplsmic solute-receptor-dependent secondary active transporters

Article Abstract:

Phylogenetic analysis demonstrates that tripartite ATP-independent periplasmic transporters (TRAP-T) systems probably evolved from a common ancestral transporter. TRAP-T from Rhodobacter capsulatus exhibit 3 C(sub)4-dicarboxylate specific proteins and homologues of these are identified in other bacteria and in archaea.

United Kingdom, Analysis, Carrier proteins, Transport proteins, Biological transport, Phylogeny, Chemical evolution, Molecular evolution

Similar abstracts:

• Abstracts: Combined molecular and conventional analyses of nitrifying bacterium diversity in activate sludge: Nitrosococcus mobilis and Nitrospira-like bacteria as dominant populations
• Abstracts: The catecholate siderophores of Azotobacter vinelandii: their affinity for iron and role in oxygen stress management
• Abstracts: Subcellular localization of the Snf1 kinase is regulated by specific beta subunits and a novel glucose signaling mechanism
• Abstracts: The MeCP1 complex represses transcription through preferential binding, remodeling, and deacetylating methylated nucleosomes
• Abstracts: Molecular analysis of the microbial diversity present in the colonic wall, colonic lumen, and cecal lumen of a pig

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.