View source for 5pti


==STRUCTURE OF BOVINE PANCREATIC TRYPSIN INHIBITOR. RESULTS OF JOINT NEUTRON AND X-RAY REFINEMENT OF CRYSTAL FORM II==
<StructureSection load='5pti' size='340' side='right'caption='[[5pti]], [[Resolution|resolution]] 1.00&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5pti]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5PTI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5PTI FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Hybrid , Neutron Diffraction , X-ray diffraction, [[Resolution|Resolution]] 1&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DOD:DEUTERATED+WATER'>DOD</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</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=5pti FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5pti OCA], [https://pdbe.org/5pti PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5pti RCSB], [https://www.ebi.ac.uk/pdbsum/5pti PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5pti ProSAT]</span></td></tr>
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== Function ==
[https://www.uniprot.org/uniprot/BPT1_BOVIN BPT1_BOVIN] Inhibits trypsin, kallikrein, chymotrypsin, and plasmin.
== 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/pt/5pti_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=5pti ConSurf].
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== Publication Abstract from PubMed ==
The structure of form II crystals of bovine pancreatic trypsin inhibitor has been investigated by joint refinement of X-ray and neutron data. Crystallographic R factors for the final model were 0.200 for the X-ray data extending to 1 A resolution and 0.197 for the 1.8 A neutron data. This model was strongly restrained, with 0.020 A root-mean-square (r.m.s.) departure of bond lengths from their ideal values and 0.019 A r.m.s. departure of planar groups from planarity. The resulting structure was very similar to that of crystal form I (r.m.s. deviation for main chain atoms was 0.40 A); nevertheless larger deviations were observed in particular regions of the chain. Twenty out of 63 ordered water molecules occupy similar positions (deviation less than 1 A) in both models. Eleven amide hydrogens were found to be protected from exchange after three months of soaking the crystals in deuterated mother liquor at pH 8.2. Their locations were in excellent agreement with the results obtained by two-dimensional nuclear magnetic resonance, but the rates of exchange are much lower in the crystalline state.

Structure of bovine pancreatic trypsin inhibitor. Results of joint neutron and X-ray refinement of crystal form II.,Wlodawer A, Walter J, Huber R, Sjolin L J Mol Biol. 1984 Dec 5;180(2):301-29. PMID:6210373<ref>PMID:6210373</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 5pti" style="background-color:#fffaf0;"></div>

==See Also==
*[[BPTI 3D structures|BPTI 3D structures]]
== References ==
<references/>
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</StructureSection>
[[Category: Bos taurus]]
[[Category: Large Structures]]
[[Category: Huber R]]
[[Category: Wlodawer A]]