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9CAUD:M1EAL7

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Species (Taxon ID) Salmonella phage vB_SenMS16. (1087482)
Gene Name(s) No Information Provided.
Protein Name(s) Uncharacterized protein (ECO:0000313 with EMBL:AEO97039.1)
External Links
UniProt M1EAL7
EMBL HQ331142
RefSeq YP_007501093.1
GeneID 14675294
KEGG vg:14675294
Proteomes UP000011284

Annotations

Qualifier GO ID GO term name Reference ECO ID ECO term name with/from Aspect Extension Notes Status
GO:0098024

virus tail, fiber

PMID:23289425[1]

ECO:0000314

C

In silico analysis was used to identify gp37 as a component of the putative long tail fibre (LTF)(Figure 3). Sequence identity of S16 gp37 to the corresponding gene products in phages T4 and T2 is very low (T4: 20% and T2: 18%). Because this homology is below the widely accepted threshold for relatedness (Tian and Skolnick, 2003), hence might be considered orthologues rather than homologues.

SDS-PAGE of different S16 GFP-LTF protein synthesis variations in E.coli resulted in the production of functional GFP–LTF and indicates trimerization of S16 gp37 and attachment of gp38 to S16 gp37 trimers (Figure 4 and S1) The distal part of the S16 LTF likely has a putative structure closely related to what has been reported for phage T2 (Drexler et.al., 1986), where gp38 acts as the actual adhesin while bound to the C-terminal (distal) tip of gp37.

The binding of purified S16 GFP–LTF fusion protein to wild-type and mutant Salmonella typhimurium cells (with mutated OmpC) were assessed. (Figure?5A and B) The wild-type revealed an even decoration of the bacterial surface by the fluorescent LTF (Figure?5A and B). Deletion of OmpC completely abolished decoration by S16 GFP–LTF (Figure?5C and D). The defective phenotype could be restored by in-trans complementation using ompC (Table?3, Figure?5E and F).

complete
CACAO 12626

Notes

References

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  1. Marti, R et al. (2013) Long tail fibres of the novel broad-host-range T-even bacteriophage S16 specifically recognize Salmonella OmpC. Mol. Microbiol. 87 818-34 PubMed GONUTS page