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Phage P22 tailspike protein information


Bifunctional tail protein
PDB rendering based on 2XC1​.[1]
Identifiers
OrganismEnterobacteria phage P22
Symbol9
Entrez1262799
PDB2XC1
RefSeq (mRNA)NC_002371.2
RefSeq (Prot)NP_059644.1
Other data
EC number3.2.1.-
ChromosomeGenome: 0.02 - 0.02 Mb

The tailspike protein (P22TSP) of Enterobacteria phage P22 mediates the recognition and adhesion between the bacteriophage and the surface of Salmonella enterica cells. It is anchored within the viral coat and recognizes the O-antigen portion of the lipopolysaccharide (LPS) on the outer-membrane of Gram-negative bacteria. It possesses endoglycanase activity, serving to shorten the length of the O-antigen during infection.[2]

  1. ^ 2XC1​, 2VFM​, 2VKY​, 2VFP​, 2VFQ​, 2VFO​, 2VFN​, 2VNL​, 3TH0​, 1TYU​, 1TYV​, 1TYX​, 1TYW​, 1TSP​, 1CLW​, 1QRB​, 1QRC​, 1QQ1​, 1QA1​, 1QA2​, 1QA3​, 1LKT
  2. ^ Andres D, Baxa U, Hanke C, Seckler R, Barbirz S (Oct 2010). "Carbohydrate binding of Salmonella phage P22 tailspike protein and its role during host cell infection". Biochemical Society Transactions. 38 (5): 1386–1389. doi:10.1042/BST0381386. PMID 20863318.

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Phage P22 tailspike protein

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The tailspike protein (P22TSP) of Enterobacteria phage P22 mediates the recognition and adhesion between the bacteriophage and the surface of Salmonella...

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Salmonella virus P22

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tailspike of the P22 phage binds to the O-antigen lipopolysaccharide on the surface of Salmonella typhimurium host. The virion's tail fiber protein has...

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Beta sheet

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β-helices, typified by the pectate lyase enzyme shown at left or P22 phage tailspike protein, have a less regular cross-section, longer and indented on one...

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Beta helix

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charged residues neutralized by salt bridges. Both pectate lyase and P22 tailspike protein contain right-handed helices; left-handed versions have been observed...

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