23 February 2015: The sites that bind: Birte Svensson
and Darrell Cockburn
have completed the Surface Binding Site
page within the CAZypedia Lexicon
. Surface binding sites are substrate-binding regions found on the catalytic domain of carbohydrate-active enzymes and appear to play complementary roles to carbohydrate-binding modules in facilitating the action of polysaccharide-degrading glycoside hydrolases. Read more about these intriguing features and their distribution among CAZymes here.
20 February 2015: One for the Gals: Harry Gilbert has given the Carbohydrate Binding Module Family 62 page, which was authored by Cedric Montanier, Curator Approved status today. Functional and structural characterization of the archetypal CBM62 member from a Clostridium thermocellum xylanase revealed a strong affinity for galactose residues of either anomeric configuration on plant polysaccharides. Although the precise roles of this and other CBM62 members remains somewhat ambiguous, it is clear that these modules are relevant to the targeting of enzymes to the composite plant cell wall. Read more about the work of the all-star team that put CBM62 on the map (of CAZy families), here.
19 January 2015: Still in the high 70's today: Zui Fujimoto brought the Glycoside Hydrolase Family 78 page up to Curator Approved status today, making it CAZypedia's 97th approved GH page. GH78 is a family of archaeal, bacterial, and fungal alpha-L-rhamnosidases that cleave diverse flavonoid glycosides, polysaccharides, glycoproteins, and glycolipids from plants. Read more on these ecologically relevant enzymes here.
7 January 2015: Love your guts: CAZypedia is ringing in the new year with a new Glycoside Hydrolase Family 76 page by Spencer Williams. GH76 contains endo-acting α-mannanases, including members from the human gut bacterium Bacteroides thetaiotaomicron that enable us to degrade yeast mannans in our diet. A very recent publication in Nature, notably involving CAZypedia contributors Michael Suits, Al Boraston, Spencer Williams, Gideon Davies, Wade Abbott, and Harry Gilbert, has recently shed new light on the structure, mechanism, and biological function of these enzymes. Read more here!
> older news