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GO:0098023virus tail, tipPMID:15150235IDA: Inferred from Direct Assay C
This annotation made on page: BPTU2:Q9AYV6
By: Eleo1 (group Team Red B) on 2016-03-28 05:56:41 CDT.




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Entry TypeChallenging User,GroupTime/DateChallenge ReasonPoints/Assessment
ChallengeEleo1,
Team Red B
2016-04-18 17:41:41 CDT

As Patelrh3 correctly states, Figure six shows the presence of Tal2009 at the tip of the tail, justifying the annotation I made and the GO term I used.

It is true that the Paper mainly focuses on the lytic function of the protein, which is another annotation I was planning on making. But, in my opinion, the experiments they performed do not yeild sufficient evidence for the function they say it has (cell-wall degradation for viral entry). The experiments confirm it is involved in the infection process and likely in lysis of the cell, but is it entry or is it exit? This was not clear enough for me. Additionally I could not find a fitting GO term for "lytic function".

As for this annotation, it does not matter what other experiments the did or whether the position of the protein was the focus of the study, in order for me to make that 'component' annotation.

None, yet.
ChallengePatelrh3,
Team Snorlax
2016-04-04 16:06:51 CDT

Figure 6 is an electron micrograph in the journal is about the Tuc2009 particles after incubation. This figure is about an antibody binding to the end of the phage tail. The binding was to detect the presence of Tal2009 at the location.

0
ChallengeIyerav,
Team TRUMP2016
2016-03-30 10:52:12 CDT

Hi! The electron micrograph in Fig 6. of the journal is about Tucc2009 particles after incubation, which is in fact about an antibody specific antibody binding to the tip of the phage tail. But the entire article is about the particle encoding for tail degradation. You were right but you need to make sure you review the entire article in your notes. But it's ok, better luck next time sir/madam.

You've been stumped by the Trump. (Making Annotations Great Again)

0
ChallengeDi46616,
Team Red A
2016-03-30 10:19:55 CDT

While the Tuc2009 is located at the tip of the tail, the paper mainly focuses on its cell wall degrading activity, and only shows it is on the viral tail tip to show where the protein is. Thus calling the protein a cell wall degrading lysin would be better, since thats what it is, and it just happens to be located at the tip as it is associated with the tail.

0
Public
Assessment
Suzialeksander2016-05-06 13:47:07 CDT

So this annotation IS completely acceptable, but there might be others- possibly an alignment (data not shown but you can still cite the paper), and the authours state "Bacteriophage Tuc2009 contains a structural component with cell wall-degrading activity which can be assigned to Tal2009". Part of the reason we only accept pee-reviewed original literature is to allow annotations that we might not fully agree with, but the authours and the reviewers of the paper have accepted. Since it's in the paper, we can accept this claim. If you're having trouble finding a GO, this might be a time to ask us for help or even improve the Viral terms in the ontology. Of you're looking at using this for a transfer annotation, the Component term is perfectly acceptable, but you might want to make a direct annotation to a "lysis" type term ( and I know there are some out there).

Acceptable
Protein
Publication
Qualifier
Go term
Evidence
With/From
Notes
Unique/Original
Private
Assessment
Suzialeksander2016-05-06 13:39:18 CDTYou need to be an instructor to view these notes.Acceptable
Protein
Publication
Qualifier
Go term
Evidence
With/From
Notes
Unique/Original