Enterobakterijski fag T4

Enterobakterijski fag T4
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Naučna klasifikacija
Red: Caudovirales
Porodica: Myoviridae
Rod: T4-slični virusi
Vrsta: T4 fag

Enterobakterijski fag T4 je bakteriofag koji može da inficira bakteriju E. coli.[1][2] Njegov dvolančani DNK genom je oko 169 kbp dugačak[3] i sadržan je u ikosaedarskoj glavi, poznatoj kao kapsid. T4 je relativno veliki fag, aproksimativno 90 nm u širok i 200 nm dugačak (većina fagova ima dužinu u opsegu od 25 do 200 nm). Vlakna njegovog repa omogućavaju vezivanje za ćeliju domaćina. Rep T4 faga je šupalj, tako da nukleinska kiselina prolazi kroz njega pri ulasku u ćeliju. T4 ima jedino sposobnost sprovođenja litičkog, a ne i lizogenog životnog ciklusa.

Reference

  1. ↑ Tarahovsky, Y. S.; Ivanitsky, G.R.; Khusainov, A.A. (1994). „Lysis of Escherichia coli cells by bacteriophage T4”. FEMS Microbiology Letters 122: 195–200. DOI:10.1111/j.1574-6968.1994.tb07164.x. 
  2. ↑ Oda, M.; M. Morita, H. Unno, Y. Tanji (2004). „Rapid Detection of Escherichia coli O157: H7 by Using Green Fluorescent Protein-Labeled PP01 Bacteriophage”. Applied and Environmental Microbiology 70 (1): 527–534. DOI:10.1128/AEM.70.1.527-534.2004. PMC 321238. PMID 14711684. 
  3. ↑ Miller ES, Kutter E, Mosig G, Arisaka F, Kunisawa T, Rüger W (2003). „Bacteriophage T4 genome.”. Microbiology and molecular biology reviews : MMBR 67 (1): 86–156, table of contents. DOI:10.1128/MMBR.67.1.86-156.2003. PMC 150520. PMID 12626685. 

Literatura

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Vidi još

  • T4 rII sistem

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