Protein Family Models

ABC transporters for a large family of proteins responsible for translocation of a variety of compounds across biological membranes. ABC transporters are the largest family of proteins in many completely sequenced bacteria. ABC transporters are composed of two copies of this domain and two copies of a transmembrane domain Pfam:PF00664. These four domains may belong to a single polypeptide as in Swiss:P13569, or belong in different polypeptide chains. [1]. 1864505. Homology between proteins controlling Streptomyces fradiae. tylosin resistance and ATP-binding transport.. Rosteck PR Jr, Reynolds PA, Hershberger CL;. Gene 1991;102:27-32.. [2]. 1977073. Structure and function of haemolysin B,P-glycoprotein and other. members of a novel family of membrane translocators.. Blight MA, Holland IB;. Mol Microbiol 1990;4:873-880.. [3]. 2229036. Binding protein-dependent transport systems.. Higgins CF, Hyde SC, Mimmack MM, Gileadi U, Gill DR, Gallagher. MP;. J Bioenerg Biomembr 1990;22:571-592.. [4]. 9872322. Crystal structure of the ATP-binding subunit of an ABC. transporter.. Hung LW, Wang IX, Nikaido K, Liu PQ, Ames GF, Kim SH;. Nature 1998;396:703-707. (from Pfam)

Date:

2024-08-14

Members of this family are the PhnL protein of C-P lyase systems for utilization of phosphonates. These systems resemble phosphonatase-based systems in having a three component ABC transporter, where TIGR01097 is the permease, TIGR01098 is the phosphonates binding protein, and TIGR02315 is the ATP-binding cassette (ABC) protein. They differ, however, in having, typically, ten or more additional genes, many of which are believed to form a membrane-associated C-P lysase complex. This protein (PhnL) and the adjacent-encoded PhnK (TIGR02323) resemble transporter ATP-binding proteins but are suggested, based on mutatgenesis studies, to be part of this C-P lyase complex rather than part of a transporter per se.

Gene:

phnL

Date:

2021-04-27