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All posts created by debbie

| posted 15 May, 2024 23:13
Hi Dane,
From the HHPred results, because of the limited nature of the hits, i would not call anything at this time.
best,
debbie
Posted in: Annotationcapsid maturation protease or hypothetical protein (MuF-like minor capsid protein)
| posted 10 May, 2024 01:15
Alison and your students,
Thank you for your awesome work on this. Maria Gainey presented this and her similar protein at our SMART meeting today and a discussion ensued. For now, we recommend that you call this protein "cyclic nucleotide inhibitor".
best,
debbie
Posted in: Request a new function on the SEA-PHAGES official listanti-CBASS type III-C protein
| posted 09 May, 2024 02:16
Hi Nikki,
Sorry to id the paper as Tweety, when the data is about Fruitloop. Bit I di have the paper right! (Just what you needed, more confusion.)
I think your decision is a good as we can get at this point.
best,
debbie
Posted in: Gene or not a GeneF1 cluster forward reverse or neither?
| posted 03 May, 2024 18:42
Be careful what you say about Fruitloop. Go to the paper and see the mas spec table and the map there. (when I looked, the paper doesn't match the GB file). There is a gene in there that you do want to call. i just don't have time right now to match it correctly. Let's touch base before you submit.
best,
debbie
Posted in: Gene or not a GeneF1 cluster forward reverse or neither?
| posted 03 May, 2024 16:20
Hi Nikki,
Mycobacteriophage Tweety has a paper that includes mass spec data. While the integrase and repressor have less sequence homology, that space in between may have enough similarity that you can draw some inferences that are applicable. Let me know what you think.
https://onlinelibrary.wiley.com/doi/full/10.1111/mmi.13946
Best,
debbie
Edited 03 May, 2024 16:22
Posted in: Gene or not a GeneF1 cluster forward reverse or neither?
| posted 24 Apr, 2024 19:04
You are welcome!
debbie
Posted in: Cluster CS Annotation TipsCS2 Holin Gene
| posted 24 Apr, 2024 17:02
Hi Dane,
See the attached picture for why I would call a lot of theses proteins membrane proteins and not holins….. yet. Too many to choose from?

debbie
Posted in: Cluster CS Annotation TipsCS2 Holin Gene
| posted 12 Apr, 2024 00:24
Hi Fernando,
I think I want to stick with what is written in the Cluster O paper. There are 4 transmembrane proteins in the region downstream of lysin A and lysin B.

I would call the 4 genes that hit Deep TMHMM transmembrane proteins - membrane proteins.
Deep TMHMM is now the preferred method for transmembrane detection. (See Bioinformatics Guide.)
And check out that data on phamerator!!!

As to why holins may not be detected in HHPRed, I think that list could include that holins demonstrate a lot of diversity, holin activity may need more than one gene, holins are small proteins and must not be easy to crytallize and study.

It is not uncommon to not find a hit to a holin.

Best,
debbie
Posted in: Cluster P Annotation TipsAssignment of gp28 as holin
| posted 10 Apr, 2024 00:42
Hemiparasite
afreise
As of Dec 2022, are we leaving off the MuF part, based on this update from Debbie? https://seaphages.org/forums/topic/4628/

So now just: capsid maturation protease?

(I am annotating Usavi (B1). The gene is here: https://phagesdb.org/genes/Usavi_CDS_10/)

In the final annotation of Usavi, would it be Usavi_9 that is the example of this call, rather than Usavi_10? https://phagesdb.org/genes/Usavi_CDS_9/

YEP!!!
Posted in: Cluster B Annotation TipsCapsid maturation protease and MuF-like fusion protein
| posted 08 Apr, 2024 02:06
Hi Ombeline,
I am not one to say that close enough is good enough, but in this case, I think the resemblance will do. I would call this slippage.

The explanation is that for many years we believed that all siphoviridae had to have a programmed frameshift.
In 2022 Alan Davidson's group published this paper to counter that.
https://www.sciencedirect.com/science/article/pii/S0042682221002221

The sequence identified for the programmed frameshift is just too believable to not annotate it!

best,
debbie
Posted in: Cluster EA Annotation Tipsframe shift