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'''28 February 2019:''' ''CE9 is CE page #2!:''  Graduate student '''[[User:Alex Anderson|Alex Anderson]]''' has completed ''CAZypedia's'' second [[:Category:Carbohydrate Esterase Families|Carbohydrate Esterase (CE)]] family page, '''[[Carbohydrate Esterase Family 4]]''', which was [[Curator Approved]] by his supervisor  '''[[User:Michael Suits|Michael Suits]]''' today.  '''[[CE9]]''' enzymes are metal-dependent ''N''-acetylglucosamine 6-phosphate deacetylases that function in peptidoglycan recycling in bacteria.  '''[[CE9]]''' is a huge family, currently comprising over 10,000 members (nearly all are from bacteria), which underscores their biological importance.  '''[[User:Alex Anderson|Alex]]''' and   '''[[User:Michael Suits|Mike]]''' completed ''CAZypedia's'' first [[:Category:Carbohydrate Esterase Families|CE family page]], [[CE4]] earlier this month, and we thank them for these seminal expansions of of our resource. ''Learn more about the structure and mechanism of metal-dependent deamidases here: [[CE9]], [[CE4]]''.
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'''1 November 2024:''' ''Is this a world record? Six CAZypedia families in one fell swoop!'' The '''[[CBM47]], [[CBM70]], [[CBM96]], [[CBM105]], [[CBM106]] and [[PL44]]''' ''CAZypedia'' pages are now flipped to [[Curator Approved]] status. What do these diverse families from diverse origins with diverse binding specificities have in common? Astonishingly, at least one characterized member from each family interacts with a charged glycan! '''[[User:Wenwen Tao|Wenwen Tao]]''' authored the [[CBM47]], [[CBM96]] and [[CBM106]] pages, '''[[User:Menghui Sun|Menghui Sun]]''' authored the [[CBM70]] page, '''[[User:Guanchen Liu|Guanchen Liu]]''' authored the [[CBM105]] page and '''[[User:Jinhang Zhou|Jinhang Zhou]]''' authored the [[PL44]] pageAll this under the responsible curatorship of '''[[User:Yaoguang Chang|Yaoguang Chang]]'''. ''Dive into these diverse families on their respective ''CAZypedia'' pages: '''[[CBM47]], [[CBM70]], [[CBM96]], [[CBM105]], [[CBM106]] and [[PL44]]!'''''
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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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'''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 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!''
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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 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 [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.''
  
'''22 February 2019:''' ''Starch-active LPMOs:''  '''[[User:Glyn Hemsworth|Glyn Hemsworth]]''' recently completed the '''[[Auxiliary Activity Family 13]]''' page, which was [[Curator Approved]] by [[Responsible Curator]] '''[[User:Gideon Davies|Gideon Davies]]''' today.  '''[[AA13]]''' was first identified in 2014 and is notable as the first lytic polysaccharide mono-oxygenase (LPMO) family that is active on alpha-glycosidic bonds, ''viz.'' those in amylose (starch).  Overall, LPMOs are an intriguing group of copper-dependent oxidases that open-up insoluble polysaccharide substrates for increased attack by [[glycoside hydrolases]].  ''Read more about '''[[AA13]]''' and related beta-glycan-active LPMOs ([[AA9]], [[AA10]], [[AA11]], [[AA14]], & AA15) on their respective [[Auxiliary Activity Families|CAZypedia pages]] and at the [http://www.cazy.org/Auxiliary-Activities.html CAZy Database].''
 
 
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'''4 February 2019:''' ''CAZypedia's first CE page!''  Today [[Responsible Curator]] '''[[User:Michael Suits|Michael Suits]]''' approved the '''[[Carbohydrate Esterase Family 4]]''' page [[author]]ed by graduate student '''[[User:Alex Anderson|Alex Anderson]]''', thereby marking a new milestone ''CAZypedia's'' [[CAZypedia:History|history]].  [[:Category:Carbohydrate Esterase Families|Carbohydrate Esterases (CEs)]] catalyze the de-''O''-acylation or de-''N''-acylation of saccharides (the latter are formally amidases), and '''[[CE4]]''' contains members with either activity, ''e.g.'' acetylxylan esterases and peptidoglycan deacetylases. '''[[CE4]]''' members thus play diverse biological roles in nature.  ''Learn more about the structure and mechanism of these metal-dependent de-acylases [[CE4|here]]''.
 
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'''27 November 2018:''' ''Remember, remember... an end of November new CAZypedia CBM family page.''  The type C L-rhamnose binding [[CBM67]] family is now on-line in CAZypedia.  '''[[User:Satoshi Kaneko|Satoshi Kaneko]]''' authored the page and '''[[User:Harry Gilbert|Harry Gilbert]]''' acted as responsible curator.  ''Learn more about the structure and function of the [[CBM67]] family on its CAZypedia [[CBM67|page]]''.
 
 
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'''23 November 2018:''' ''Welcome to the CAZypedia fold [[CBM49]]!'' The crystalline cellulose-binding [[CBM49]] CAZypedia page was authored by '''[[User:Breeanna Urbanowicz|Breeanna Urbanowicz]]''' and '''[[User:Elizabeth Ficko-Blean|Elizabeth Ficko-Blean]]'''.  '''[[User:Breeanna Urbanowicz|Breeanna Urbanowicz]]''' also acted as responsible curator.  There is experimental evidence that rice [[CBM49]] is cleaved post-translationally in vivo which probably plays an important role in plant growth. ''Find out more about the functionally interesting family 49 CBMs [[CBM49|here]]''.
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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 16:03, 21 November 2024

1 November 2024: Is this a world record? Six CAZypedia families in one fell swoop! The CBM47, CBM70, CBM96, CBM105, CBM106 and PL44 CAZypedia pages are now flipped to Curator Approved status. What do these diverse families from diverse origins with diverse binding specificities have in common? Astonishingly, at least one characterized member from each family interacts with a charged glycan! Wenwen Tao authored the CBM47, CBM96 and CBM106 pages, Menghui Sun authored the CBM70 page, Guanchen Liu authored the CBM105 page and Jinhang Zhou authored the PL44 page. All this under the responsible curatorship of Yaoguang Chang. Dive into these diverse families on their respective CAZypedia pages: CBM47, CBM70, CBM96, CBM105, CBM106 and PL44!


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.