Peptide transporter carbon starvation family

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The Peptide Transporter Carbon Starvation (CstA) Family (TC# 2.A.114) is a member of the APC superfamily and consists of proteins from bacteria and archaea. These proteins are of various sizes and topologies. For example, CstA of E. coli has 701 aas with 18 putative TMSs. It has a long N-terminal CstA domain and a short C-terminal DUF4161 domain. This protein is encoded by a carbon starvation inducible gene, cstA, that is under cyclic AMP-CRP control. Circumstantial evidence suggested that it may be a peptide transporter.[1] A Campylobacter jejuni homologue has been shown to transport di- and tripeptides (see TC# 2.A.114.1.5).[2][3] Proteins currently known to belong to the CstA family are listed in the Transporter Classification Database. As of early 2016, there is no crystal structural data available for members of the CstA family on RCSB.

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  1. ^ Schultz, JE; Matin, A (March 5, 1991). "Molecular and functional characterization of a carbon starvation gene of Escherichia coli". Journal of Molecular Biology. 218 (1): 129–40. doi:10.1016/0022-2836(91)90879-b. PMID 1848300.
  2. ^ Rasmussen, J. J.; Vegge, C. S.; Frøkiær, H.; Howlett, R. M.; Krogfelt, K. A.; Kelly, D. J.; Ingmer, H. (2013-08-01). "Campylobacter jejuni carbon starvation protein A (CstA) is involved in peptide utilization, motility and agglutination, and has a role in stimulation of dendritic cells". Journal of Medical Microbiology. 62 (Pt 8): 1135–1143. doi:10.1099/jmm.0.059345-0. ISSN 1473-5644. PMID 23682166.
  3. ^ Saier, MH Jr. "2.A.114 The Peptide Transporter Carbon Starvation CstA (CstA) Family". Transporter Classification Database. Saier Lab Bioinformatics Group @ UCSD / SDSC.