1qbf: Difference between revisions

← Older edit

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA

@@ Line 1: / Line 1: @@
-[[Image:1qbf.jpg|left|200px]]
- {{Structure
+==NMR SOLUTION STRUCTURE OF PORCINE PEPTIDE YY==
-|PDB= 1qbf |SIZE=350|CAPTION= <scene name='initialview01'>1qbf</scene>
+<StructureSection load='1qbf' size='340' side='right'caption='[[1qbf]]' scene=''>
-|SITE=
+== Structural highlights ==
-|LIGAND= <scene name='pdbligand=NH2:AMINO GROUP'>NH2</scene>
+<table><tr><td colspan='2'>[[1qbf]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QBF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1QBF FirstGlance]. <br>
-|ACTIVITY=
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
-|GENE=
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NH2:AMINO+GROUP'>NH2</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=1qbf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qbf OCA], [https://pdbe.org/1qbf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1qbf RCSB], [https://www.ebi.ac.uk/pdbsum/1qbf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1qbf ProSAT]</span></td></tr>
+</table>
-'''NMR SOLUTION STRUCTURE OF PORCINE PEPTIDE YY'''
+== Function ==
+[https://www.uniprot.org/uniprot/PYY_PIG PYY_PIG] This gut peptide inhibits exocrine pancreatic secretion, has a vasoconstrictory action and inhibitis jejunal and colonic mobility.
+== Evolutionary Conservation ==
-==Overview==
+[[Image:Consurf_key_small.gif|200px|right]]
-Peptide YY (PYY) belongs to a family of peptides including neuropeptide Y (NPY) and pancreatic peptide (PP) that regulate numerous functions through both central and peripheral receptors. The solution structure of these peptides is hypothesized to be critically important in receptor selectivity and activation, based on prior demonstration of a stable tertiary conformation of PP called the "PP-fold". Circular dichroism (CD) spectra show a pH-dependent structural transition in the pH range 3-4. Thus we describe the tertiary structure of porcine PYY in water at pH 5.5, 25 degrees C, and 150 mM NaCl, as determined from 2D (1)H NMR data recorded at 500 MHz. A constraint set consisting of 396 interproton distances from NOE data was used as input for distance geometry, simulated annealing, and restrained energy minimization calculations in X-PLOR. The RMSDs of the 20 X-PLOR-generated structures were 0.71 +/- 0.14 and 1.16 +/- 0.17 A, respectively, for backbone and heavy atom overlays of residues 1-34. The resulting structure consists of two C-terminal helical segments from residues 17 to 22 and 25 to 33 separated by a kink at residues 23, 24, and 25, a turn centered around residues 12-14, and the N-terminus folded near residues 30 and 31. The well-defined portions of the PYY structure reported here bear a marked similarity to the structure of PP. Our findings strongly support the importance of the stable folded structure of this family of peptides for binding and activation of Y receptor subtypes.
+Check<jmol>
+  <jmolCheckbox>
-==About this Structure==
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/qb/1qbf_consurf.spt"</scriptWhenChecked>
-QBF is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QBF OCA].
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <text>to colour the structure by Evolutionary Conservation</text>
-==Reference==
+  </jmolCheckbox>
-Solution structure of monomeric peptide YY supports the functional significance of the PP-fold., Keire DA, Kobayashi M, Solomon TE, Reeve JR Jr, Biochemistry. 2000 Aug 15;39(32):9935-42. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10933813 10933813]
+</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=1qbf ConSurf].
-[[Category: Single protein]]
+<div style="clear:both"></div>
-[[Category: Jr., J R.Reeve.]]
+__TOC__
-[[Category: Keire, D A.]]
+</StructureSection>
-[[Category: Kobayashi, M.]]
+[[Category: Large Structures]]
-[[Category: Solomon, T E.]]
+[[Category: Sus scrofa]]
-[[Category: NH2]]
+[[Category: Keire DA]]
-[[Category: pancreatic hormone]]
+[[Category: Kobayashi M]]
-[[Category: pp-fold]]
+[[Category: Reeve Jr JR]]
+[[Category: Solomon TE]]
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 13:35:27 2008''