CAZypedia needs your help! We have many unassigned GH, PL, CE, AA, GT, and CBM pages in need of Authors and Responsible Curators.
Scientists at all career stages, including students, are welcome to contribute to CAZypedia. Read more here, and in the 10th anniversary article in Glycobiology.
New to the CAZy classification? Read this first.
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Consider attending the 15th Carbohydrate Bioengineering Meeting in Ghent, 5-8 May 2024.
Template:News
11 Jan 2012: New for the new year: CAZypedia is proud to report that our first new page of 2012, the Glycoside Hydrolase Family 99 page, has been completed by Spencer Williams and given Curator Approved status today. The page follows the recent publication of seminal structural and mechanistic analyses by a multi-investigator team including CAZypedia Curators Spencer Williams and Gideon Davies, which suggests that endo-mannosidases of this family may use an unusual mechanism involving a 1,2-anhydro-β- mannopyranose ("sugar epoxide") intermediate to effect the release of Glc1–3-1,3-α-Man oligosaccharides during N-glycan trimming. GH99 is a small, but nonetheless important family, whose members come from both higher eukaryotes, which employ these enzymes in protein-folding quality-control, and bacteria, which are likely to use their homologues for carbohydrate scavenging in niche enviroments such as the human gut.
Also in the news: Spencer altered us to the fact that CAZypedia has clocked one million page views sometime recently. We're not quite sure what to make of that, but it seems like a pretty neat achievement. What is really interesting is that we are starting to see some dynamics in which pages are accessed most: Newer pages, such as GH18, are becoming more popular than the very first CAZypedia page, GH1. And, some of the Lexicon pages, including those on the Cellulosome and anomeric configuration are right up there in the list. If you like to keep score, here's a list of our most Special:PopularPages.
18 July 2011: Our second GH-I chitosanase page: Ryszard Brzezinski has recently completed and Curator Approved his second page on chitosanases, enzymes which act specifically on the de-acetylated form of chitin (the polysaccharide chitin is a widespread in Nature as a main component of insect bodies and crustacean shells). Glycoside Hydrolase Family 80, a member of Clan GH-I together with GH24 and GH46, is a remarkably small family, which has thus far received only limited experimental attention. We therefore look forward to the expansion of this page with structural and mechanistic data in the future. Coincidentally, the GH80 page is our 80th Curator Approved Glycoside Hydrolase Family page in CAZypedia!
20 June 2011: More phosphorylases: On May 29, Author and Responsible Curator Hiroyuki Nakai completed the Glycoside Hydrolase Family 65 page. GH65 is comprised of alpha-glycoside phosphorylases and alpha,alpha-trehalose hydrolases. Due to the readily reversible nature of phosphorolysis, GH65 enzymes have been harnessed for glycoside synthesis, including recent work by Dr. Nakai. The completion of the GH65 complements previously completed pages on the beta-glycoside phosphorylases of GH94 and GH112 in CAZypedia.
12 May 2011: A new page on a new-ish family: Author and Responsible Curator Satoshi Kaneko completed the Glycoside Hydrolase Family 115 page today. GH115 contains microbial alpha-glucuronidases, which are involved the cleavage of D-glucuronic acid and 4-O-methyl-D-glucuronic acid sidechains from xylans. Remarkably, GH115 enzymes can release these monosaccharides from intact polymer chains, which is rather rare for exo-acting enzymes, and contrasts them with glucuronidases from GH67. Although this regiospecific activity has been known since the last millenium, it was only in 2009 that these particular enzymes nucleated their own GH family.