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[[Image:1hi5.gif|left|200px]]<br />
<applet load="1hi5" size="450" color="white" frame="true" align="right" spinBox="true"
caption="1hi5, resolution 1.80&Aring;" />
'''EOSINOPHIL-DERIVED NEUROTOXIN (EDN)-ADENOSINE-5'-DIPHOSPHATE COMPLEX'''<br />


==Overview==
==Eosinophil-derived Neurotoxin (EDN) - Adenosine-5'-Diphosphate Complex==
Eosinophil-derived neurotoxin (EDN), a basic ribonuclease found in the, large specific granules of eosinophils, belongs to the pancreatic RNase A, family. Although its physiological function is still unclear, it has been, shown that EDN is a neurotoxin capable of inducing the Gordon phenomenon, in rabbits. EDN is also a potent helminthotoxin and can mediate antiviral, activity of eosinophils against isolated virions of the respiratory, syncytial virus. EDN is a catalytically efficient RNase sharing similar, substrate specificity with pancreatic RNase A with its ribonucleolytic, activity being absolutely essential for its neurotoxic, helminthotoxic, and antiviral activities. The crystal structure of recombinant human EDN, in the unliganded form has been determined previously (Mosimann, S. C., Newton, D. L., Youle, R. J., and James, M. N. G. (1996) J. Mol. Biol. 260, 540-552). We have now determined high resolution (1.8 A) crystal, structures for EDN in complex with adenosine-3',5'-diphosphate, (3',5'-ADP), adenosine-2',5'-di-phosphate (2',5'-ADP), adenosine-5'-diphosphate (5'-ADP) as well as for a native structure in the, presence of sulfate refined at 1.6 A. The inhibition constant of these, mononucleotides for EDN has been determined. The structures present the, first detailed picture of differences between EDN and RNase A in substrate, recognition at the ribonucleolytic active site. They also provide a, starting point for the design of tight-binding inhibitors, which may be, used to restrain the RNase activity of EDN.
<StructureSection load='1hi5' size='340' side='right'caption='[[1hi5]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1hi5]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HI5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1HI5 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]] 1.8&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</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=1hi5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hi5 OCA], [https://pdbe.org/1hi5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1hi5 RCSB], [https://www.ebi.ac.uk/pdbsum/1hi5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1hi5 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/RNAS2_HUMAN RNAS2_HUMAN] This is a non-secretory ribonuclease. It is a pyrimidine specific nuclease with a slight preference for U. Cytotoxin and helminthotoxin. Selectively chemotactic for dendritic cells. Possesses a wide variety of biological activities.<ref>PMID:3458170</ref> <ref>PMID:12578357</ref>
== 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/hi/1hi5_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=1hi5 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Eosinophil-derived neurotoxin (EDN), a basic ribonuclease found in the large specific granules of eosinophils, belongs to the pancreatic RNase A family. Although its physiological function is still unclear, it has been shown that EDN is a neurotoxin capable of inducing the Gordon phenomenon in rabbits. EDN is also a potent helminthotoxin and can mediate antiviral activity of eosinophils against isolated virions of the respiratory syncytial virus. EDN is a catalytically efficient RNase sharing similar substrate specificity with pancreatic RNase A with its ribonucleolytic activity being absolutely essential for its neurotoxic, helminthotoxic, and antiviral activities. The crystal structure of recombinant human EDN in the unliganded form has been determined previously (Mosimann, S. C., Newton, D. L., Youle, R. J., and James, M. N. G. (1996) J. Mol. Biol. 260, 540-552). We have now determined high resolution (1.8 A) crystal structures for EDN in complex with adenosine-3',5'-diphosphate (3',5'-ADP), adenosine-2',5'-di-phosphate (2',5'-ADP), adenosine-5'-diphosphate (5'-ADP) as well as for a native structure in the presence of sulfate refined at 1.6 A. The inhibition constant of these mononucleotides for EDN has been determined. The structures present the first detailed picture of differences between EDN and RNase A in substrate recognition at the ribonucleolytic active site. They also provide a starting point for the design of tight-binding inhibitors, which may be used to restrain the RNase activity of EDN.


==Disease==
Mapping the ribonucleolytic active site of eosinophil-derived neurotoxin (EDN). High resolution crystal structures of EDN complexes with adenylic nucleotide inhibitors.,Leonidas DD, Boix E, Prill R, Suzuki M, Turton R, Minson K, Swaminathan GJ, Youle RJ, Acharya KR J Biol Chem. 2001 May 4;276(18):15009-17. Epub 2001 Jan 11. PMID:11154698<ref>PMID:11154698</ref>
Known diseases associated with this structure: Central hypoventilation syndrome, congenital OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=131242 131242]], Hirschsprung disease OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=131242 131242]], Shah-Waardenburg syndrome OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=131242 131242]]


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
1HI5 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with ADP as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [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] Structure known Active Site: ADP. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1HI5 OCA].
</div>
 
<div class="pdbe-citations 1hi5" style="background-color:#fffaf0;"></div>
==Reference==
== References ==
Mapping the ribonucleolytic active site of eosinophil-derived neurotoxin (EDN). High resolution crystal structures of EDN complexes with adenylic nucleotide inhibitors., Leonidas DD, Boix E, Prill R, Suzuki M, Turton R, Minson K, Swaminathan GJ, Youle RJ, Acharya KR, J Biol Chem. 2001 May 4;276(18):15009-17. Epub 2001 Jan 11. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=11154698 11154698]
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Pancreatic ribonuclease]]
[[Category: Large Structures]]
[[Category: Single protein]]
[[Category: Acharya KR]]
[[Category: Acharya, K.R.]]
[[Category: Boix E]]
[[Category: Boix, E.]]
[[Category: Leonidas DD]]
[[Category: Leonidas, D.D.]]
[[Category: Minson K]]
[[Category: Minson, K.]]
[[Category: Prill R]]
[[Category: Prill, R.]]
[[Category: Suzuki M]]
[[Category: Suzuki, M.]]
[[Category: Swaminathan GJ]]
[[Category: Swaminathan, G.J.]]
[[Category: Turton R]]
[[Category: Turton, R.]]
[[Category: Youle RJ]]
[[Category: Youle, R.J.]]
[[Category: ADP]]
[[Category: ribonuclease]]
[[Category: rnase us]]
[[Category: rnase-2]]
 
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Nov 12 17:18:20 2007''

Latest revision as of 11:30, 6 November 2024

Eosinophil-derived Neurotoxin (EDN) - Adenosine-5'-Diphosphate ComplexEosinophil-derived Neurotoxin (EDN) - Adenosine-5'-Diphosphate Complex

Structural highlights

1hi5 is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.8Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

RNAS2_HUMAN This is a non-secretory ribonuclease. It is a pyrimidine specific nuclease with a slight preference for U. Cytotoxin and helminthotoxin. Selectively chemotactic for dendritic cells. Possesses a wide variety of biological activities.[1] [2]

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

Eosinophil-derived neurotoxin (EDN), a basic ribonuclease found in the large specific granules of eosinophils, belongs to the pancreatic RNase A family. Although its physiological function is still unclear, it has been shown that EDN is a neurotoxin capable of inducing the Gordon phenomenon in rabbits. EDN is also a potent helminthotoxin and can mediate antiviral activity of eosinophils against isolated virions of the respiratory syncytial virus. EDN is a catalytically efficient RNase sharing similar substrate specificity with pancreatic RNase A with its ribonucleolytic activity being absolutely essential for its neurotoxic, helminthotoxic, and antiviral activities. The crystal structure of recombinant human EDN in the unliganded form has been determined previously (Mosimann, S. C., Newton, D. L., Youle, R. J., and James, M. N. G. (1996) J. Mol. Biol. 260, 540-552). We have now determined high resolution (1.8 A) crystal structures for EDN in complex with adenosine-3',5'-diphosphate (3',5'-ADP), adenosine-2',5'-di-phosphate (2',5'-ADP), adenosine-5'-diphosphate (5'-ADP) as well as for a native structure in the presence of sulfate refined at 1.6 A. The inhibition constant of these mononucleotides for EDN has been determined. The structures present the first detailed picture of differences between EDN and RNase A in substrate recognition at the ribonucleolytic active site. They also provide a starting point for the design of tight-binding inhibitors, which may be used to restrain the RNase activity of EDN.

Mapping the ribonucleolytic active site of eosinophil-derived neurotoxin (EDN). High resolution crystal structures of EDN complexes with adenylic nucleotide inhibitors.,Leonidas DD, Boix E, Prill R, Suzuki M, Turton R, Minson K, Swaminathan GJ, Youle RJ, Acharya KR J Biol Chem. 2001 May 4;276(18):15009-17. Epub 2001 Jan 11. PMID:11154698[3]

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

References

  1. ↑ Gleich GJ, Loegering DA, Bell MP, Checkel JL, Ackerman SJ, McKean DJ. Biochemical and functional similarities between human eosinophil-derived neurotoxin and eosinophil cationic protein: homology with ribonuclease. Proc Natl Acad Sci U S A. 1986 May;83(10):3146-50. PMID:3458170
  2. ↑ Teufel DP, Kao RY, Acharya KR, Shapiro R. Mutational analysis of the complex of human RNase inhibitor and human eosinophil-derived neurotoxin (RNase 2). Biochemistry. 2003 Feb 18;42(6):1451-9. PMID:12578357 doi:10.1021/bi026852o
  3. ↑ Leonidas DD, Boix E, Prill R, Suzuki M, Turton R, Minson K, Swaminathan GJ, Youle RJ, Acharya KR. Mapping the ribonucleolytic active site of eosinophil-derived neurotoxin (EDN). High resolution crystal structures of EDN complexes with adenylic nucleotide inhibitors. J Biol Chem. 2001 May 4;276(18):15009-17. Epub 2001 Jan 11. PMID:11154698 doi:10.1074/jbc.M010585200

1hi5, resolution 1.80Å

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