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1eid

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[[Image:1eid.jpg|left|200px]]
 
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{{Structure
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==CRYSTAL STRUCTURE OF F120G MUTANT OF BOVINE PANCREATIC RIBONUCLEASE A==
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|PDB= 1eid |SIZE=350|CAPTION= <scene name='initialview01'>1eid</scene>, resolution 1.40&Aring;
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<StructureSection load='1eid' size='340' side='right'caption='[[1eid]], [[Resolution|resolution]] 1.40&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND=
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<table><tr><td colspan='2'>[[1eid]] 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=1EID OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1EID FirstGlance]. <br>
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Pancreatic_ribonuclease Pancreatic ribonuclease], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.27.5 3.1.27.5] </span>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.4&#8491;</td></tr>
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|GENE=
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1eid FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1eid OCA], [https://pdbe.org/1eid PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1eid RCSB], [https://www.ebi.ac.uk/pdbsum/1eid PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1eid ProSAT]</span></td></tr>
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|DOMAIN=
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</table>
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|RELATEDENTRY=[[1dp1|1DP1]], [[1eic|1EIC]], [[1eie|1EIE]]
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== Function ==
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1eid FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1eid OCA], [http://www.ebi.ac.uk/pdbsum/1eid PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1eid RCSB]</span>
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[https://www.uniprot.org/uniprot/RNAS1_BOVIN RNAS1_BOVIN] Endonuclease that catalyzes the cleavage of RNA on the 3' side of pyrimidine nucleotides. Acts on single stranded and double stranded RNA.<ref>PMID:7479688</ref>
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}}
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ei/1eid_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=1eid ConSurf].
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<div style="clear:both"></div>
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'''CRYSTAL STRUCTURE OF F120G MUTANT OF BOVINE PANCREATIC RIBONUCLEASE A'''
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==See Also==
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*[[Ribonuclease 3D structures|Ribonuclease 3D structures]]
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== References ==
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==Overview==
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<references/>
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The replacement of Phe120 with other hydrophobic residues causes a decrease in the activity and thermal stability in ribonuclease A (RNase A). To explain this, the crystal structures of wild-type RNase A and three mutants--F120A, F120G, and F120W--were analyzed up to a 1.4 A resolution. Although the overall backbone structures of all mutant samples were nearly the same as that of wild-type RNase A, except for the C-terminal region of F120G with a high B-factor, two local conformational changes were observed at His119 in the mutants. First, His119 of the wild-type and F120W RNase A adopted an A position, whereas those of F120A and F120G adopted a B position, but the static crystallographic position did not reflect either the efficiency of transphosphorylation or the hydrolysis reaction. Second, His119 imidazole rings of all mutant enzymes were deviated from that of wild-type RNase A, and those of F120W and F120G appeared to be "inside out" compared with that of wild-type RNase A. Only approximately 1 A change in the distance between N(epsilon2) of His12 and N(delta1) of His119 causes a drastic decrease in k(cat), indicating that the active site requires the strict positioning of the catalytic residues. A good correlation between the change in total accessible surface area of the pockets on the surface of the mutant enzymes and enthalpy change in their thermal denaturation also indicates that the effects caused by the replacements are not localized but extend to remote regions of the protein molecule.
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__TOC__
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</StructureSection>
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==About this Structure==
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1EID is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1EID OCA].
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==Reference==
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Conformational strictness required for maximum activity and stability of bovine pancreatic ribonuclease A as revealed by crystallographic study of three Phe120 mutants at 1.4 A resolution., Chatani E, Hayashi R, Moriyama H, Ueki T, Protein Sci. 2002 Jan;11(1):72-81. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11742124 11742124]
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[[Category: Bos taurus]]
[[Category: Bos taurus]]
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[[Category: Pancreatic ribonuclease]]
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[[Category: Large Structures]]
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[[Category: Single protein]]
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[[Category: Chatani E]]
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[[Category: Chatani, E.]]
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[[Category: Hayashi R]]
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[[Category: Hayashi, R.]]
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[[Category: Moriyama H]]
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[[Category: Moriyama, H.]]
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[[Category: Ueki T]]
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[[Category: Ueki, T.]]
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[[Category: bovine pancrea]]
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[[Category: hydrolase]]
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[[Category: ribonuclease]]
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[[Category: rnase some]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 20:03:08 2008''
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Current revision

CRYSTAL STRUCTURE OF F120G MUTANT OF BOVINE PANCREATIC RIBONUCLEASE A

PDB ID 1eid

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