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Difference between revisions of "Glycoside Hydrolase Family 25"

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(Undo revision 3864 by Ed Taylor (Talk))
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|-
 
|-
 
|'''Active site residues'''
 
|'''Active site residues'''
|This super-family has been shown to use an active site DE or DXE sequence motif ( or exceptionally in the case of GH85 a DXN moitif ADDIN EN.CITE  ADDIN EN.CITE.DATA  3C456E644E6F74653E3C436974653E3C417574686F723E4C696E673C2F417574686F723E3C596561723E323030393C2F596561723E3C5265634E756D3E34393C2F5265634E756D3E3C7265636F72643E3C7265632D6E756D6265723E34393C2F7265632D6E756D6265723E3C666F726569676E2D6B6579733E3C6B6579206170703D22454E222064622D69643D22327A3932733530776878617876306578727335357374396361747A397676747066646635223E34393C2F6B65793E3C2F666F726569676E2D6B6579733E3C7265662D74797065206E616D653D224A6F75726E616C2041727469636C65223E31373C2F7265662D747970653E3C636F6E7472696275746F72733E3C617574686F72733E3C617574686F723E4C696E672C205A2E3C2F617574686F723E3C617574686F723E53756974732C204D2E20442E3C2F617574686F723E3C617574686F723E42696E6768616D2C20522E204A2E3C2F617574686F723E3C617574686F723E42727563652C204E2E20432E3C2F617574686F723E3C617574686F723E4461766965732C20472E204A2E3C2F617574686F723E3C617574686F723E4661697262616E6B732C20412E204A2E3C2F617574686F723E3C617574686F723E4D6F69722C204A2E20572E3C2F617574686F723E3C617574686F723E5461796C6F722C20452E204A2E3C2F617574686F723E3C2F617574686F72733E3C2F636F6E7472696275746F72733E3C617574682D616464726573733E4465706172746D656E74206F662042696F6C6F67792C20556E6976657273697479206F6620596F726B2C20554B2E3C2F617574682D616464726573733E3C7469746C65733E3C7469746C653E54686520582D726179206372797374616C20737472756374757265206F6620616E2041727468726F6261637465722070726F746F70686F726D69616520656E646F2D626574612D4E2D61636574796C676C75636F73616D696E69646173652072657665616C7320612028626574612F616C7068612928382920636174616C7974696320646F6D61696E2C2074776F20616E63696C6C61727920646F6D61696E7320616E64206163746976652073697465207265736964756573206B657920666F72207472616E73676C79636F73796C6174696F6E2061637469766974793C2F7469746C653E3C7365636F6E646172792D7469746C653E4A204D6F6C2042696F6C3C2F7365636F6E646172792D7469746C653E3C2F7469746C65733E3C706572696F646963616C3E3C66756C6C2D7469746C653E4A204D6F6C2042696F6C3C2F66756C6C2D7469746C653E3C2F706572696F646963616C3E3C70616765733E312D393C2F70616765733E3C766F6C756D653E3338393C2F766F6C756D653E3C6E756D6265723E313C2F6E756D6265723E3C65646974696F6E3E323030392F30332F33313C2F65646974696F6E3E3C64617465733E3C796561723E323030393C2F796561723E3C7075622D64617465733E3C646174653E4D61792032393C2F646174653E3C2F7075622D64617465733E3C2F64617465733E3C6973626E3E313038392D383633382028456C656374726F6E6963293C2F6973626E3E3C616363657373696F6E2D6E756D3E31393332373336333C2F616363657373696F6E2D6E756D3E3C75726C733E3C72656C617465642D75726C733E3C75726C3E687474703A2F2F7777772E6E6362692E6E6C6D2E6E69682E676F762F656E7472657A2F71756572792E666367693F636D643D526574726965766526616D703B64623D5075624D656426616D703B646F70743D4369746174696F6E26616D703B6C6973745F756964733D31393332373336333C2F75726C3E3C2F72656C617465642D75726C733E3C2F75726C733E3C656C656374726F6E69632D7265736F757263652D6E756D3E53303032322D323833362830392930303334342D31205B7069695D262378443B31302E313031362F6A2E6A6D622E323030392E30332E3035303C2F656C656374726F6E69632D7265736F757263652D6E756D3E3C6C616E67756167653E656E673C2F6C616E67756167653E3C2F7265636F72643E3C2F436974653E3C436974653E3C417574686F723E4162626F74743C2F417574686F723E3C596561723E323030393C2F596561723E3C5265634E756D3E35303C2F5265634E756D3E3C7265636F72643E3C7265632D6E756D6265723E35303C2F7265632D6E756D6265723E3C666F726569676E2D6B6579733E3C6B6579206170703D22454E222064622D69643D22327A3932733530776878617876306578727335357374396361747A397676747066646635223E35303C2F6B65793E3C2F666F726569676E2D6B6579733E3C7265662D74797065206E616D653D224A6F75726E616C2041727469636C65223E31373C2F7265662D747970653E3C636F6E7472696275746F72733E3C617574686F72733E3C617574686F723E4162626F74742C20442E20572E3C2F617574686F723E3C617574686F723E4D616361756C65792C204D2E20532E3C2F617574686F723E3C617574686F723E566F6361646C6F2C20442E204A2E3C2F617574686F723E3C617574686F723E426F726173746F6E2C20412E20422E3C2F617574686F723E3C2F617574686F72733E3C2F636F6E7472696275746F72733E3C617574682D616464726573733E4465706172746D656E74206F662042696F6368656D697374727920616E64204D6963726F62696F6C6F67792C20556E6976657273697479206F6620566963746F7269612C20566963746F7269612C204272697469736820436F6C756D62696120563857203350362C2043616E6164612E3C2F617574682D616464726573733E3C7469746C65733E3C7469746C653E5374726570746F636F6363757320706E65756D6F6E69616520656E646F6865786F73616D696E696461736520442C207374727563747572616C20616E64206D656368616E697374696320696E736967687420696E746F207375627374726174652D617373697374656420636174616C7973697320696E2066616D696C7920383520676C79636F7369646520687964726F6C617365733C2F7469746C653E3C7365636F6E646172792D7469746C653E4A2042696F6C204368656D3C2F7365636F6E646172792D7469746C653E3C2F7469746C65733E3C706572696F646963616C3E3C66756C6C2D7469746C653E4A2042696F6C204368656D3C2F66756C6C2D7469746C653E3C2F706572696F646963616C3E3C70616765733E31313637362D38393C2F70616765733E3C766F6C756D653E3238343C2F766F6C756D653E3C6E756D6265723E31373C2F6E756D6265723E3C65646974696F6E3E323030392F30322F30333C2F65646974696F6E3E3C64617465733E3C796561723E323030393C2F796561723E3C7075622D64617465733E3C646174653E4170722032343C2F64617465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4,5 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).  This carboxylate pair  promotes a double displacement mechanism in which the nucleophile is not enzyme-derived but is provided by the substrate in an  intramolecular “neighboring group” attack of the N-acetyl carbonyl group ADDIN EN.CITE <EndNote><Cite><Author>Vocadlo</Author><Year>2008</Year><RecNum>29</RecNum><record><rec-number>29</rec-number><foreign-keys><key app=&quot;EN&quot; db-id=&quot;2z92s50whxaxv0exrs55st9catz9vvtpfdf5&quot;>29</key></foreign-keys><ref-type name=&quot;Journal Article&quot;>17</ref-type><contributors><authors><author>David Vocadlo</author><author>Gideon J Davies</author></authors></contributors><titles><title>Mechanistic Insights into Glycosidase Chemistry</title><secondary-title>Curr Opin Chem Biol</secondary-title></titles><pages>539-555 </pages><volume>12</volume><dates><year>2008</year></dates><urls></urls></record></Cite></EndNote>6. Thus catalysis occurs via the formation, and subsequent breakdown of a covalent oxazoline intermediate. 
+
|known/not known
 
|-
 
|-
 
|{{Hl2}} colspan="2" align="center" |'''CAZy DB link'''
 
|{{Hl2}} colspan="2" align="center" |'''CAZy DB link'''

Revision as of 04:38, 16 February 2010

Under construction icon-blue-48px.png

This page is currently under construction. This means that the Responsible Curator has deemed that the page's content is not quite up to CAZypedia's standards for full public consumption. All information should be considered to be under revision and may be subject to major changes.


Glycoside Hydrolase Family GHnn
Clan GH-x
Mechanism retaining/inverting
Active site residues known/not known
CAZy DB link
http://www.cazy.org/fam/GHnn.html


Substrate specificities

Content is to be added here.

This is an example of how to make references to a journal article [1]. (See the References section below). Multiple references can go in the same place like this [1, 2]. You can even cite books using just the ISBN [3]. References that are not in PubMed can be typed in by hand [4].


Kinetics and Mechanism

Content is to be added here.


Catalytic Residues

Content is to be added here.


Three-dimensional structures

Content is to be added here.


Family Firsts

First sterochemistry determination
Cite some reference here, with a short (1-2 sentence) explanation [1].
First catalytic nucleophile identification
Cite some reference here, with a short (1-2 sentence) explanation [4].
First general acid/base residue identification
Cite some reference here, with a short (1-2 sentence) explanation [2].
First 3-D structure
Cite some reference here, with a short (1-2 sentence) explanation [3].

References

  1. Comfort DA, Bobrov KS, Ivanen DR, Shabalin KA, Harris JM, Kulminskaya AA, Brumer H, and Kelly RM. (2007). Biochemical analysis of Thermotoga maritima GH36 alpha-galactosidase (TmGalA) confirms the mechanistic commonality of clan GH-D glycoside hydrolases. Biochemistry. 2007;46(11):3319-30. DOI:10.1021/bi061521n | PubMed ID:17323919 [Comfort2007]
  2. He S and Withers SG. (1997). Assignment of sweet almond beta-glucosidase as a family 1 glycosidase and identification of its active site nucleophile. J Biol Chem. 1997;272(40):24864-7. DOI:10.1074/jbc.272.40.24864 | PubMed ID:9312086 [He1999]
  3. [3]
  4. Sinnott, M.L. (1990) Catalytic mechanisms of enzymic glycosyl transfer. Chem. Rev. 90, 1171-1202. DOI: 10.1021/cr00105a006

    [MikesClassic]

All Medline abstracts: PubMed