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.

Cluster BI - Chitosinase

| posted 11 May, 2019 17:20
I am reviewing a BI1 and have a couple genes with functions assigned that are not on the official function list. Both were undoubtedly chosen because they were assigned historically. I just want to get a backstop of my plan. I'll post them as separate posts.

One is chitosinase, which I am changing to glycoside hydrogenase.

Eight cluster BI phages have the function chitosinase assigned to a gene in pham 16099 (https://phagesdb.org/phams/16099/).

The protein does hit chitosinase in Strep and other bacterial spp. by both blastp (https://blast.ncbi.nlm.nih.gov/Blast.cgi?CMD=Get&RID=DE09SEP6015) and HHPred (https://toolkit.tuebingen.mpg.de/#/jobs/Esketit_22a) and (https://toolkit.tuebingen.mpg.de/#/jobs/Esketit_22b).

The closest approved function is a glycoside hydrogenase, of which chitosinase is a type. The other option is to put in a petition to have it added to the list.

Thoughts?

Steve
Edited 11 May, 2019 17:40
| posted 13 May, 2019 15:03
Hi Steve,
sO I guess the question is if we can confirm the more specific assignment. I don't know enough about the enzymes to know how closely related they are, and if we are sure of the chitosinase label. are there specific domains or residues we should look for? IF it is not easy to confirm, the more generic is always appropriate.
 
Login to post a reply.