2 July 2014: More on the alpha-amylase clan:
We are pleased to report that Stefan Janecek
has made another key contribution to CAZypedia
by completing the Glycoside Hydrolase Family 77
page today. GH77
contains enzymes variously known as amylomaltases
, or disproportionating enzymes
in plants), which catalyze (1-4)-to-(1-4) transglycosylation of alpha-glucan chains and form part of the starch/glycogen debranching system. Together with GH13
GH-H, a clan of alpha-glucan-specific enzymes united by a common (β/α)8
catalytic domain fold. Stefan
is the founder and main organiser of ALAMY
- the international symposia on the alpha-amylase enzyme family - and has been a key person in producing the GH13
pages in CAZypedia
; we are especially grateful for all his hard work and expertise!
23 June 2014:
"LysM" domains in CAZypedia: The cohort of Carbohydrate Binding Module Families covered in CAZypedia continues to grow with the completion of the Carbohydrate Binding Module Family 50 by Takayuki Ohnuma and Toki Taira. CBM50 members are also known as LysM domains, which are found in a range of enzymes beyond glycoside hydrolases, including proteases, in which they are believed to facilitate targeting and degradation the bacterial cell wall. Read more here...!
14 May 2014: Two new CBM pages: We are pleased to report that Shinya Fushinobu has produced and given Curator Approved status to two new CBM pages. Carbohydrate Binding Module Family 28 contains Type B CBMs that target non-crystalline beta-glucan chains, while Carbohydrate Binding Module Family 42 members are Type C CBMs that bind terminal, non-reducing-end L-arabinofuranosyl residues, as found in xylans. Both families are likely to play key role in potentiating biomass degradation by their host organisms, and are therefore relevant to related biotechnological applications.
6 February 2014: Our second LPMO page: Glyn Hemsworth and Gideon Davies have just completed the Auxiliary Activity Family 11 page. AA11 is a very recently discovered family of copper-dependent, lytic polysaccharide mono-oxygenases (LPMO), whose defining member catalyzes the oxidative cleavage of chitin. The LPMO field is particularly exciting and rapidly evolving, and we are proud to present the AA11 page in CAZypedia so closely after the initial report on this family.
17 January 2014: More on CBMs: The Carbohydrate Binding Module Family 41 page was upgraded to Curator Approved status today by Alicia Lammerts van Bueren and Al Boraston. CBM41 is a family of alpha-glucan-binding modules, which are primarily associated with the pullulanases and debranching enzymes of Glycoside Hydrolase Family 13. Find out more here...!
6 January 2014: A new year, a new CBM page! The Carbohydrate Binding Module Family 6 page was completed and given Curator Approved status today by Author and Curator Mirjam Czjzek. CBM6 was originally defined based on the observation of xylan binding, however the diversity of substrate specificities in this family has now grown to include diverse beta-glucans, chitin, and even the marine polysaccharide agarose; remarkably, some CBM6 members also contain two distinct binding sites. The CBM6 page is CAZypedia's second Carbohydrate Binding Module Family page, and we look forward to the further expansion of this section in the new year!
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