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Difference between revisions of "Template:News"

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'''29 October 2010:''' ''News from sunny Provence:'' '''[[User:Florence Vincent|Florence Vincent]]''' has completed the '''[[Glycoside Hydrolase Family 73]]''' page, which has just been edited and [[Curator Approved|approved]] by [[Board of Curators|Senior Curator]] '''[[User:Bernard Henrissat|Bernard Henrissat]]'''.  '''[[GH73]]''' contains peptidoglycan hydrolases with endo-β-N-acetylglucosaminidase (NAG, a.k.a. GlcNAc) specificityMechanistic and structural parallels between this family and other hexosaminidase families have been drawn, including '''[[Glycoside Hydrolase Family 18]]''', whose ''CAZypedia'' page was very recently finished ''(see the preceding News item from Oct. 13)''.
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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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'''13 October 2010:''' '''[[User:Gideon Davies|Gideon Davies]]''' has just completed and approved the '''[[Glycoside Hydrolase Family 18]]''' chitinase/endo-β-''N''-acetylglucosaminidase page, with help from '''[[User:Nathalie Juge|Nathalie Juge]]''' on the non-catalytic proteins in the family, which function as carbohydrate-binding proteins or enzyme inhibitors''Look out for links to this and several of the pages mentioned in previous News items in the latest version of the [http://www.cazy.org/ CAZy database], to be released today!''
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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-glucansIntriguingly, 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.''
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'''08 October 2010:''' ''Trehalases!:'' ''CAZypedia'' [[Author]] '''[[User:Tracey Gloster|Tracey Gloster]]''' completed the '''[[Glycoside Hydrolase Family 37]]''' page today, which was summarily approved by [[Responsible Curator]] '''[[User:Gideon Davies|Gideon Davies]]'''. '''[[GH37]]''' is a trehalase-specific family; trehalases are also currently found in [[GH15]] and [[GH65]].
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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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'''06 October 2010:''' ''A [http://en.wikipedia.org/wiki/Hat-trick hat-trick]:'' '''[[Glycoside Hydrolase Family 5]]''' makes three [[Curator Approved]] family pages by '''[[User:Gideon Davies|Gideon Davies]]''' in one day.  '''[[GH5]]''' is a large, poly-specific family, which makes covering the entire scope of this family challenging.  ''CAZypedia'' is an evolving resource, so readers are welcome to suggest further improvements.
 
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'''06 October 2010:''' ''More cellulases - the second family from [[User:Gideon Davies|Gideon]] in one day:''  The '''[[Glycoside Hydrolase Family 45]]''' page has been completed and [[Curator Approved|approved]] by [[Board of Curators|Senior Curator]] '''[[User:Gideon Davies|Gideon Davies]]'''.  '''[[GH45]]''' contains ''endo''-β(1-4)glucanases (''endo''-cellulases), and a significant structural similarity to [http://en.wikipedia.org/wiki/Expansin plant expansins] has been observed.
 
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'''06 October 2010:''' ''<u>Yet another</u> classic cellulase family:'' The '''[[Glycoside Hydrolase Family 6]]''' page by '''[[User:Kathleen Piens|Kathleen Piens]]''' and '''[[User:Gideon Davies|Gideon Davies]]''' has just been upgraded to  [[Curator Approved]] status.  '''[[GH6]]''' contains cellobiohydrolase II (CBHII, or Cel6A in the modern nomenclature), which is a main component of the enzyme cocktail secreted by the proficient cellulose-degrading organism, ''Hypocrea jecorica'' (''née Trichoderma reesei'').
 
 
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Latest revision as of 09:56, 22 July 2024

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.