Phi29 holin family

The Bacillus subtilis φ29 Holin (φ29 Holin) Family (TC# 1.E.10) is a group of transporters belonging to the Holin Superfamily IV.[1] A representative list of members belonging to the φ29 holin family can be found in the Transporter Classification Database.

The phage φ29 gene 14 encodes the protein GP14 (TC# 1.E.10.1.1) which is required for phage φ29-promoted host cell lysis.[2] When expressed in E. coli, it leads to cell death without lysis. When expressed together with phage φ29 lysozyme or an unrelated murein-degrading enzyme, cell lysis is also observed. Thus, GP14 is a nonspecific holin in the cytoplasmic membrane of B. subtilis. It is identical to the phage PZA lysis protein and nearly identical to the phage B103 lysis protein. It is 34% identical to the phage GA-1 holin.[3][4][5]

See also

References
  1. Reddy, Bhaskara L.; Saier Jr., Milton H. (2013-11-01). "Topological and phylogenetic analyses of bacterial holin families and superfamilies". Biochimica et Biophysica Acta (BBA) - Biomembranes. 1828 (11): 2654–2671. doi:10.1016/j.bbamem.2013.07.004. PMC 3788059. PMID 23856191.
  2. Steiner, M.; Lubitz, W.; Bläsi, U. (1993-02-01). "The missing link in phage lysis of gram-positive bacteria: gene 14 of Bacillus subtilis phage phi 29 encodes the functional homolog of lambda S protein". Journal of Bacteriology. 175 (4): 1038–1042. doi:10.1128/jb.175.4.1038-1042.1993. ISSN 0021-9193. PMC 193017. PMID 8432697.
  3. Tedin, K.; Resch, A.; Steiner, M.; Bläsi, U. (1995-01-10). "Dual translational start motif evolutionarily conserved in the holin gene of Bacillus subtilis phage phi 29". Virology. 206 (1): 479–484. doi:10.1016/s0042-6822(95)80063-8. ISSN 0042-6822. PMID 7831803.
  4. Steiner, M.; Lubitz, W.; Bläsi, U. (1993-02-01). "The missing link in phage lysis of gram-positive bacteria: gene 14 of Bacillus subtilis phage phi 29 encodes the functional homolog of lambda S protein". Journal of Bacteriology. 175 (4): 1038–1042. doi:10.1128/jb.175.4.1038-1042.1993. ISSN 0021-9193. PMC 193017. PMID 8432697.
  5. "1.E.10 The Bacillus subtilis φ29 Holin (φ29 Holin) Family". Transporter Classification Database. Retrieved 2016-03-20.

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