SEA-PHAGES Logo

The official website of the HHMI Science Education Alliance-Phage Hunters Advancing Genomics and Evolutionary Science program.

Welcome to the forums at seaphages.org. Please feel free to ask any questions related to the SEA-PHAGES program. Any logged-in user may post new topics and reply to existing topics. If you'd like to see a new forum created, please contact us using our form or email us at info@seaphages.org.

All posts created by debbie

| posted yesterday, 19:04
You are welcome!
debbie
Posted in: Cluster CS Annotation TipsCS2 Holin Gene
| posted yesterday, 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
| posted 05 Apr, 2024 18:14
Hi all,
It does look like parts of GeneMark is down. I have written to their administrator to help to resolve.
In the meantime, at least when I try, the Gene Mark server is working for GeneMark S. You can follow the direction from the guide found here:
https://seaphagesbioinformatics.helpdocsonline.com/article-68
I think you can make all of the selections found in the guide except, the RBS model choice is no longer available.

As for GeneMark host trained data, we will need to wait on the website for more information. i will continue to follow up.

Best,
debbie
Posted in: PECAANGeneMarkS ?
| posted 22 Mar, 2024 16:55
debbie
Hi Katie and Steve,
The space where the DNA Master server lives is undergoing renovations. It is expected to be back next week. I'll keep you posted.
debbie
DNA Master's website is back up! 3/22/24
best,
debbie
Posted in: DNA MasterCritical Update: Installing New Copies of DNA Master or Updating Old Versions of DNA Master prior to Version 2701
| posted 16 Mar, 2024 22:16
From Ann Findley:
"I just checked with our computer science folks who were responsible for writing the code and administering the database. Unfortunately, when they went into the AWS account that was hosting the PET they were not able to recover the code. The latest information is that they are attempting to use an earlier version of PET to resurrect the tool. I am not certain of their timeline for completion."
Best,
debbie
Posted in: General Message BoardPhage Enzyme Tools - PET2.0 - Down?
| posted 07 Mar, 2024 15:58
Hi Katie and Steve,
The space where the DNA Master server lives is undergoing renovations. It is expected to be back next week. I'll keep you posted.
debbie
Edited 07 Mar, 2024 16:07
Posted in: DNA MasterCritical Update: Installing New Copies of DNA Master or Updating Old Versions of DNA Master prior to Version 2701
| posted 03 Mar, 2024 20:46
Fred,
I wold not look to fill this space in the same way I might be inclined to do so at the right end of the genome. This space is likely part of the immunity cassette, and is likely expressed during lysogeny. I would not call this gene.
debbie
Posted in: Cluster F Annotation Tips4 bp overlaps