1l0s: Difference between revisions

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New page: left|200px<br /><applet load="1l0s" size="450" color="white" frame="true" align="right" spinBox="true" caption="1l0s, resolution 2.30Å" /> '''Choristoneura fumife...
 
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[[Image:1l0s.jpg|left|200px]]<br /><applet load="1l0s" size="450" color="white" frame="true" align="right" spinBox="true"
caption="1l0s, resolution 2.30&Aring;" />
'''Choristoneura fumiferana (spruce budworm) antifreeze protein isoform 337'''<br />


==Overview==
==Choristoneura fumiferana (spruce budworm) antifreeze protein isoform 337==
Reported here is the 2.3 A resolution crystal structure of spruce budworm, (Choristoneura fumiferana) antifreeze protein (CfAFP), solved by single, anomalous scattering. The structure reveals an extremely regular, left-handed beta-helical platform consisting of 15-amino acid loops with a, repetitive Thr-X-Thr motif displayed on one of the helix's three faces., This motif results in a two-dimensional array of threonine residues in an, identical orientation to those in the nonhomologous, right-handed, beta-helical beetle AFP from Tenebrio molitor (TmAFP). The CfAFP structure, led us to reevaluate our ice binding model, and the analysis of three, possible modes of docking gives rise to a binding mechanism based on, surface complementarity. This general mechanism is applicable to both fish, and insect AFPs.
<StructureSection load='1l0s' size='340' side='right'caption='[[1l0s]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1l0s]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Choristoneura_fumiferana Choristoneura fumiferana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1L0S OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1L0S FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CD:CADMIUM+ION'>CD</scene>, <scene name='pdbligand=TYI:3,5-DIIODOTYROSINE'>TYI</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1l0s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1l0s OCA], [https://pdbe.org/1l0s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1l0s RCSB], [https://www.ebi.ac.uk/pdbsum/1l0s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1l0s ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q9GTP0_CHOFU Q9GTP0_CHOFU]
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/l0/1l0s_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1l0s ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Reported here is the 2.3 A resolution crystal structure of spruce budworm (Choristoneura fumiferana) antifreeze protein (CfAFP), solved by single anomalous scattering. The structure reveals an extremely regular left-handed beta-helical platform consisting of 15-amino acid loops with a repetitive Thr-X-Thr motif displayed on one of the helix's three faces. This motif results in a two-dimensional array of threonine residues in an identical orientation to those in the nonhomologous, right-handed beta-helical beetle AFP from Tenebrio molitor (TmAFP). The CfAFP structure led us to reevaluate our ice binding model, and the analysis of three possible modes of docking gives rise to a binding mechanism based on surface complementarity. This general mechanism is applicable to both fish and insect AFPs.


==About this Structure==
Crystal structure of beta-helical antifreeze protein points to a general ice binding model.,Leinala EK, Davies PL, Jia Z Structure. 2002 May;10(5):619-27. PMID:12015145<ref>PMID:12015145</ref>
1L0S is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Choristoneura_fumiferana Choristoneura fumiferana] with CD as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1L0S OCA].


==Reference==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
Crystal structure of beta-helical antifreeze protein points to a general ice binding model., Leinala EK, Davies PL, Jia Z, Structure. 2002 May;10(5):619-27. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=12015145 12015145]
</div>
<div class="pdbe-citations 1l0s" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Antifreeze protein 3D structures|Antifreeze protein 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Choristoneura fumiferana]]
[[Category: Choristoneura fumiferana]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Davies, P.L.]]
[[Category: Davies PL]]
[[Category: Jia, Z.]]
[[Category: Jia Z]]
[[Category: Leinala, E.K.]]
[[Category: Leinala EK]]
[[Category: CD]]
[[Category: antifreeze protein]]
[[Category: iodination]]
[[Category: left-handed beta-helix]]
 
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Sun Nov 25 02:16:54 2007''

Latest revision as of 03:11, 21 November 2024

Choristoneura fumiferana (spruce budworm) antifreeze protein isoform 337Choristoneura fumiferana (spruce budworm) antifreeze protein isoform 337

Structural highlights

1l0s is a 4 chain structure with sequence from Choristoneura fumiferana. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.3Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

Q9GTP0_CHOFU

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Reported here is the 2.3 A resolution crystal structure of spruce budworm (Choristoneura fumiferana) antifreeze protein (CfAFP), solved by single anomalous scattering. The structure reveals an extremely regular left-handed beta-helical platform consisting of 15-amino acid loops with a repetitive Thr-X-Thr motif displayed on one of the helix's three faces. This motif results in a two-dimensional array of threonine residues in an identical orientation to those in the nonhomologous, right-handed beta-helical beetle AFP from Tenebrio molitor (TmAFP). The CfAFP structure led us to reevaluate our ice binding model, and the analysis of three possible modes of docking gives rise to a binding mechanism based on surface complementarity. This general mechanism is applicable to both fish and insect AFPs.

Crystal structure of beta-helical antifreeze protein points to a general ice binding model.,Leinala EK, Davies PL, Jia Z Structure. 2002 May;10(5):619-27. PMID:12015145[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Leinala EK, Davies PL, Jia Z. Crystal structure of beta-helical antifreeze protein points to a general ice binding model. Structure. 2002 May;10(5):619-27. PMID:12015145

1l0s, resolution 2.30Å

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