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Difference between revisions of "Template:News"

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'''25 June 2023:''' ''Another one from the capybara gut.'' We're pleased to announce that the '''[[Glycoside Hydrolase Family 173]]''' page, written by Created by [[Author]]s '''[[User:Clelton Santos|Clelton Aparecido dos Santos]]''' and '''[[User:Gabriela Persinoti|Gabriela Felix Persinoti]]''' was [[Curator Approved]] by '''[[User:Mario Murakami|Mario Murakami]]''' today.  This new family of beta-galactosidases was created through the same study of the capybara gut metagenome by the [[User:Mario Murakami|Murakami group]] that led to the creation of family [[CBM89]] (see June 22nd [[News]] item).   '''[[GH173]]''' appears to be distantly related to [[GH5]] and [[GH30]] in [[Clan]] GH-A, yet there remain many unknowns about this family and its founding member - ''read more  [[GH136|here]]!''
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'''1 November 2024:''' ''Is this a CAZypedia world record? 6 CAZypedia families in one fell swoop!'' The '''[[CBM47]], [[CBM70]], [[CBM96]], [[CBM105]], [[CBM106]] and [[PL44]]''' ''CAZypedia'' pages are now flipped to curator approved. 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]] page.  All this under the responsible curatorship of '''[[User:Yaoguang Chang|Yaoguang Chang]]'''. Dive into these diverse CBMs on their respective ''CAZypedia'' pages: '''[[CBM47]], [[CBM70]], [[CBM96]], [[CBM105]], [[CBM106]] and [[PL44]]!'''
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'''23 June 2023:''' ''Human milk oligosaccharide metabolism.'' [[Author]] '''[[User:Chihaya Yamada|Chihaya Yamada]]''' and [[Responsible Curator]] '''[[User:Shinya Fushinobu|Shinya Fushinobu]]''' upgraded the '''[[Glycoside Hydrolase Family 136]]''' page to [[Curator Approved]] status today.  '''[[GH136]]''' is a family of bacterial lacto-''N''-biosidases that release lacto-''N''-biose I and lactose from lacto-N-tetraose, the main component of human milk oligosaccharides.  These enzymes have a comparatively rare right-handed beta helix fold that more typical of pectin-active [[PL]]s and [[GH]]s. ''Read more about these interesting enzymes and their role in the human gut microbiota [[GH136|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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'''22 June 2023:''' ''These [[CBM89]]s are sizeable!'' The recently discovered xylan-binding CBM89 family, originating from the capybara gut microbiota, is described by [[Author]]s: '''[[User:Mariana Morais|Mariana Abrahão Bueno de Morais]]''' and '''[[User:Gabriela Persinoti|Gabriela Felix Persinoti]]'''. '''[[User:Mario Murakami|Mario Murakami]]''' acted as  [[Responsible Curator]] on the [[CBM89|page]].  [[CBM89]]s are 600 - 1000 amino acids long which puts them in the upper echelons of CBM sizes - just as the capybara is to the rodent order.  You can check out the write up on these unusually large CBMs on their '''[[CBM89]] ''[[CBM89|CAZypedia]]'' [[CBM89|page]]'''.
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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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'''26 May 2023:''' ''A new page for a nacent family.'' [[Author]] '''[[User:Guanchen Liu|Guanchen Liu]]''' and [[Responsible Curator]] '''[[User:Yaoguang Chang|Yaoguang Chang]]''' completed the '''[[Glycoside Hydrolase Family 174]]''' page today. '''[[GH174]]''' is a recently established family of (so far) bacterial alpha-1,3-L-fucanases, which was reported by [[User:Guanchen Liu|Guanchen Liu]], [[User:Yaoguang Chang|Yaoguang Chang]] and colleagues in April, following the characterization of a representative from the marine bacterium ''Wenyingzhuangia aestuarii''.  Notably, this enzyme appears to prefer sulfated fucans, and generates a highly sulfated tetrasaccharide as the main hydrolysis product.  ''Read more about this interesting enzyme and family [[GH174|here]]!''
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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.''
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'''13 April 2023:''' ''The champagne is on ice!'' We are ecstatic to report that we’ve hit 50 [[Curator Approved]] ''CAZypedia'' [[Carbohydrate Binding Module Families|CBM pages]]!
 
  
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The '''[[CBM92]]''' and the '''[[CBM94]]''' page were finished within under 3 hours of one another.  Congratulations to the contributors for both of the pages: new ''CAZypedia'' contibutors '''[[User:Xuanwei Mei|Xuanwei Mei]]''' and  '''[[User:Yaoguang Chang|Yaoguang Chang]]''' for the [[CBM92]] page and longtime ''CAZypedia'' contributor '''[[User:Takatsugu Miyazaki|Takatsugu Miyazaki]]''' for the [[CBM94]] page.
 
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Next stop: 100 [[Curator Approved]] [[Carbohydrate Binding Module Families|CBM pages]] (this may take a little while).
 
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'''13 April 2023, 00:20:''' ''CBM92 is red hot!'' [[CBM92]] is one of the newer families of CBMs and it has a red hot preference for the red algal extracellular matrix polysaccharide carrageenan, a complex sulfated galactan. Author '''[[User:Xuanwei Mei|Xuanwei Mei]]''' describes the novel carrageenan-binding capacities of the biochemically characterized [[CBM92]] which can be found appended to a kappa-carrageenase produced by the marine bacterium ''Wenyingzhuangia aestuarii''.  '''[[User:Yaoguang Chang|Yaoguang Chang]]''' acted as responsible curator on the page.  ''Head on over to the '''[[CBM92]]''' page to learn more about this red hot CBM family!''
 
 
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'''12 April 2023, 21:50:''' ''CBM94, one for the books!'' Three of the [[CBM94]] eukaryotic members have recently been characterized (mouse, silkworm and human) and are described in detail on the [[CBM94]] page which has both been authored and responsibly curated by '''[[User:Takatsugu Miyazaki|Takatsugu Miyazaki]]'''. These ''N''-acetylglucosamine-specific [[CBM94]]s are found on the C-termini of ''N''-acetylglucosaminyltransferase IVa, an enzyme involved in ''N''-glycan biosynthesis.  The [[CBM94]] members play important roles in the functionality of their cognate glycosyl transferase catalytic module which is discussed in detail on the '''[[CBM94]]''' CAZypedia page. ''See more on these remarkable eukaryotic CBMs '''[[CBM94|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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Revision as of 08:13, 20 November 2024

1 November 2024: Is this a CAZypedia world record? 6 CAZypedia families in one fell swoop! The CBM47, CBM70, CBM96, CBM105, CBM106 and PL44 CAZypedia pages are now flipped to curator approved. 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 CBMs 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.

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