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'''Friday the 13th of December 2019:''' ''A spooky Christmas gift'' The bacterial [[CBM71]] family is a new addition to [[Carbohydrate Binding Module Families|CAZypedia CBM]] just in time for Christmas!  The CAZypedia CBM page describes the characterization of two lactose- and lacNAc- binding Pneumococcal [[CBM71]] members. The page was authored by '''[[User:Ben Pluvinagen|Ben Pluvinage]]''' with '''[[User:Alisdair Boraston|Alisdair Boraston]]''' acting as responsible curator.   ''Find out more on the [[CBM71]] family [[CBM71|here]]!''  
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'''25 October 2024:''' ''Laminariawesome!'' Check out two new marine families of CBMs, '''[[CBM102]]''' and '''[[CBM103]]''', now on ''CAZypedia'' which have an ecological role in bacterial degradation of laminarin during phytoplankton blooms.  Some function as surface glycan binding proteins but others have roles in targeting their appended catalytic modules to substrate.  Both pages were [[author]]ed by '''[[User:Marie-Katherin Zuehlke|Marie-Katherin Zühlke]]'''. ''Read up on these environmentally important CBMs on their respective [[CBM102]] and [[CBM103]] pages!''  
 
 
 
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'''3 November 2019:''' ''Xylan-cleaving LPMOs:'' Today, [[Responsible Curator]] '''[[User:Jean-Guy Berrin|Jean-Guy Berrin]]''' approved the '''[[Auxiliary Activity Family 14]]''' page [[Author|authored]] by '''[[User:Marie Couturier|Marie Couturier]]''', which describes one of the newer families of lytic polysaccharide monooxygenases (LPMOs) described in the CAZy database.  '''[[AA14]]''' was first described in 2018 by '''[[User:Marie Couturier|Marie]]''', '''[[User:Jean-Guy Berrin|Jean-Guy]]''', and their co-workers.  Notably, they showed that the founding members of this family were specific for the plant cell wall matrix glycan, xylan, which contrasts other families of LPMOs that are predominantly cellulose- or chitin-active''Check out the '''[[AA14]]''' page for more details!''
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'''19 July 2024:''' ''Chalk-up one more for the GTs!'' The '''[[Glycosyltransferase Family 47]]''' page joined the small group of [[Curator Approved]] [[Glycosyltransferase Families]] pages in ''CAZypedia'' today. This entry was [[author]]ed by Ph.D. students '''[[User:Daniel Tehrani|Daniel Tehrani]]''' and '''[[User:Charlie Corulli|Charlie Corulli]]''', and [[Responsible Curator|Curated]] by '''[[User:Breeanna Urbanowicz|Breeanna Urbanowicz]]''' with input from '''[https://ccrc.uga.edu/team/kelley-moremen/ Kelley Moremen]'''.  Widely represented in plants, '''[[GT47]]''' members are anomer-[[inverting]] [[glycosyltransferases]], which are involved in the biosynthesis of several cell wall matrix polysaccharides.  Representatives from mammals are involved in heparin biosynthesisCorrespondingly, members of [[GH47]] have diverse substrate specificities, including the transfer of both anionic and neutral monosaccharides to polysaccharides.  ''This is a great example where two keen Ph.D. students worked with their supervisors to create a valuable page for the scientific community. We encourage others to follow their lead, on your favorite family!''
 
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'''9 July 2024:''' ''Yet another new family of beta-1,2-glucan-active enzymes!'' Today, '''[[User:Masahiro Nakajima|Masahiro Nakajima]]''' [[Curator Approved]] the '''[[Glycoside Hydrolase Family 186]]''' page by '''[[User:Sei Motouchi|Sei Motouchi]]'''. '''[[GH186]]''' is a family of anomer-[[inverting]] enzymes from bacteria, members of which are specific for beta-1,2-glucans.  Intriguingly, although some [[GH186]] members work as classic [[glycoside hydrolases]], others perform transglycosylation by wrapping the sugar chain around in the active-site, to position the 6-OH group of a terminal glucosyl unit for direct attackAlso notable, [[GH186]] members appear to use an extended chain of water molecules to relay acceptor deprotonation by the [[general base]] residue, ''i.e.'' a [https://en.wikipedia.org/wiki/Grotthuss_mechanism Grotthuss mechanism]. ''Check out the '''[[GH186]]''' page to learn more about these interesting enzymes, and make sure to see the [[GH189]], [[GH144]], and [[GH162]] pages from this same group.''
'''24 October 2019:''' ''A tale of an amoebal CBM:'' The '''[[Carbohydrate Binding Module Family 55]]''' page discussing the pathogenically interesting chitin-binding '''[[CBM55]]''' family has been flipped to curator approved. The '''[[CBM55]]''' family was first identified from ''Entamoeba histolytica'', a protist that causes dysentery and liver abscessesThe page was authored by '''[[User:John Samuelson|John Samuelson]]''' with  '''[[User:Elizabeth Ficko-Blean|Elizabeth Ficko-Blean]]''' acting as responsible curator. ''Read more on this amoebal CBM family on the '''[[CBM55]]''' page.''
 
  
 
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'''15 October 2019:''' ''A new debut for beta(1-2):'' The '''[[Glycoside Hydrolase Family 144]]''' page, which describes the β-1,2-glucanases in this family, was completed by [[Author]] '''[[User:Koichi Abe|Koichi Abe]]''' and [[Responsible Curator]] '''[[User:Masahiro Nakajima|Masahiro Nakajima]]''' today. '''[[GH144]]''' was founded in 2017 based on a seminal publication by '''[[User:Koichi Abe|Koichi Abe]]''', '''[[User:Masahiro Nakajima|Masahiro Nakajima]]''', and their colleagues.  Interestingly, '''[[GH144]]''' contains both ''endo''-β-1,2-glucanases ([{{EClink}}3.2.1.71 EC 3.2.1.71]), as well as ''exo''-acting enzymes that release sophorose (Glc-β(1,2)-Glc) from the nonreducing end of β(1,2)-glucan chains ("sophorohydrolases", analogous to the more well-known "cellobiohydrolases") ''Learn more about these enzymes, whose protein structure is distantly related to that of the fungal β-1,2-glucanases from [[GH162]], on the '''[[GH144]]''' page!''
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'''2 May 2024:''' ''CBDs I to X... A major milestone!'' '''CBM families 1 to 10 are now complete!''' These are the old CBD (cellulose-binding domain) families, which used to have roman numerals as part of their nomenclature. A special thank you to all the authors and responsible curators who have contributed to this major milestone. Go have a peek at each of these old school families on their respective ''CAZypedia'' pages: '''[[CBM1]], [[CBM2]], [[CBM3]], [[CBM4]], [[CBM5]], [[CBM6]], [[CBM7]], [[CBM8]], [[CBM9]], and [[CBM10]]'''.
 
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Latest revision as of 05:59, 31 October 2024

25 October 2024: Laminariawesome! Check out two new marine families of CBMs, CBM102 and CBM103, now on CAZypedia which have an ecological role in bacterial degradation of laminarin during phytoplankton blooms. Some function as surface glycan binding proteins but others have roles in targeting their appended catalytic modules to substrate. Both pages were authored by Marie-Katherin Zühlke. Read up on these environmentally important CBMs on their respective CBM102 and CBM103 pages!


19 July 2024: Chalk-up one more for the GTs! The Glycosyltransferase Family 47 page joined the small group of Curator Approved Glycosyltransferase Families pages in CAZypedia today. This entry was authored by Ph.D. students Daniel Tehrani and Charlie Corulli, and Curated by Breeanna Urbanowicz with input from Kelley Moremen. Widely represented in plants, GT47 members are anomer-inverting glycosyltransferases, which are involved in the biosynthesis of several cell wall matrix polysaccharides. Representatives from mammals are involved in heparin biosynthesis. Correspondingly, members of GH47 have diverse substrate specificities, including the transfer of both anionic and neutral monosaccharides to polysaccharides. This is a great example where two keen Ph.D. students worked with their supervisors to create a valuable page for the scientific community. We encourage others to follow their lead, on your favorite family!


9 July 2024: Yet another new family of beta-1,2-glucan-active enzymes! Today, Masahiro Nakajima Curator Approved the Glycoside Hydrolase Family 186 page by Sei Motouchi. GH186 is a family of anomer-inverting enzymes from bacteria, members of which are specific for beta-1,2-glucans. Intriguingly, although some GH186 members work as classic glycoside hydrolases, others perform transglycosylation by wrapping the sugar chain around in the active-site, to position the 6-OH group of a terminal glucosyl unit for direct attack. Also notable, GH186 members appear to use an extended chain of water molecules to relay acceptor deprotonation by the general base residue, i.e. a Grotthuss mechanism. Check out the GH186 page to learn more about these interesting enzymes, and make sure to see the GH189, GH144, and GH162 pages from this same group.


2 May 2024: CBDs I to X... A major milestone! CBM families 1 to 10 are now complete! These are the old CBD (cellulose-binding domain) families, which used to have roman numerals as part of their nomenclature. A special thank you to all the authors and responsible curators who have contributed to this major milestone. Go have a peek at each of these old school families on their respective CAZypedia pages: CBM1, CBM2, CBM3, CBM4, CBM5, CBM6, CBM7, CBM8, CBM9, and CBM10.