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2z7f

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Revision as of 09:30, 17 October 2018

Crystal structure of the complex of human neutrophil elastase with 1/2SLPI

Structural highlights

2z7f is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Activity:	Leukocyte elastase, with EC number 3.4.21.37
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[ELNE_HUMAN] Defects in ELANE are a cause of cyclic haematopoiesis (CH) [MIM:162800]; also known as cyclic neutropenia. CH is an autosomal dominant disease in which blood-cell production from the bone marrow oscillates with 21-day periodicity. Circulating neutrophils vary between almost normal numbers and zero. During intervals of neutropenia, affected individuals are at risk for opportunistic infection. Monocytes, platelets, lymphocytes and reticulocytes also cycle with the same frequency.^[1] ^[2] Defects in ELANE are the cause of neutropenia severe congenital autosomal dominant type 1 (SCN1) [MIM:202700]. SCN1 is a disorder of hematopoiesis characterized by a maturation arrest of granulopoiesis at the level of promyelocytes with peripheral blood absolute neutrophil counts below 0.5 x 10(9)/l and early onset of severe bacterial infections.^[3]

Function

[ELNE_HUMAN] Modifies the functions of natural killer cells, monocytes and granulocytes. Inhibits C5a-dependent neutrophil enzyme release and chemotaxis.^[4] [SLPI_HUMAN] Acid-stable proteinase inhibitor with strong affinities for trypsin, chymotrypsin, elastase, and cathepsin G. May prevent elastase-mediated damage to oral and possibly other mucosal tissues.

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

SLPI (secretory leukocyte protease inhibitor) is a 107-residue non-glycosylated protease inhibitor, which inhibits a wide range of serine proteases, trypsin, chymotrypsin, neutrophil elastase, chymase and cathepsin G. X-ray crystallographic analyses have shown that SLPI comprises two separate domains of similar architecture [Grutter, Fendrich, Huber & Bode (1988), EMBO J. 7, 345-351] and the C-terminal domain interacts with bovine alpha-chymotrypsin. In order to understand SLPI's multiple functions against various serine proteases, the complex HNE (human neutrophil elastase) has been co-crystallized with 1/2SLPI (recombinant C-terminal domain of SLPI; Arg58-Ala107), which has a biological activity similar to full SLPI. The 1/2SLPI and HNE complex structure was solved at 1.7 A resolution, and compared with the interaction mechanism of elafin, which is a specific inhibitor of elastase. It was found that P1 Leu72i and six hydrogen bonds between the main chains in the primary contact region have sufficient ability to inhibit HNE and PPE (porcine pancreatic elastase), and P5 Tyr68i is important in increasing the selectivity of 1/2SLPI against HNE. The mechanisms of the functions of SLPI are relatively unknown, but the current study could help understand the selectivity of SLPI against HNE and PPE.

Complex of human neutrophil elastase with 1/2SLPI.,Koizumi M, Fujino A, Fukushima K, Kamimura T, Takimoto-Kamimura M J Synchrotron Radiat. 2008 May;15(Pt 3):308-11. Epub 2008 Apr 18. PMID:18421166^[5]

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

References

↑ Duan Z, Li FQ, Wechsler J, Meade-White K, Williams K, Benson KF, Horwitz M. A novel notch protein, N2N, targeted by neutrophil elastase and implicated in hereditary neutropenia. Mol Cell Biol. 2004 Jan;24(1):58-70. PMID:14673143
↑ Horwitz M, Benson KF, Person RE, Aprikyan AG, Dale DC. Mutations in ELA2, encoding neutrophil elastase, define a 21-day biological clock in cyclic haematopoiesis. Nat Genet. 1999 Dec;23(4):433-6. PMID:10581030 doi:10.1038/70544
↑ Germeshausen M, Zeidler C, Stuhrmann M, Lanciotti M, Ballmaier M, Welte K. Digenic mutations in severe congenital neutropenia. Haematologica. 2010 Jul;95(7):1207-10. doi: 10.3324/haematol.2009.017665. Epub, 2010 Mar 10. PMID:20220065 doi:10.3324/haematol.2009.017665
↑ Tralau T, Meyer-Hoffert U, Schroder JM, Wiedow O. Human leukocyte elastase and cathepsin G are specific inhibitors of C5a-dependent neutrophil enzyme release and chemotaxis. Exp Dermatol. 2004 May;13(5):316-25. PMID:15140022 doi:10.1111/j.0906-6705.2004.00145.x
↑ Koizumi M, Fujino A, Fukushima K, Kamimura T, Takimoto-Kamimura M. Complex of human neutrophil elastase with 1/2SLPI. J Synchrotron Radiat. 2008 May;15(Pt 3):308-11. Epub 2008 Apr 18. PMID:18421166 doi:10.1107/S0909049507060670

1 Structural highlights
2 Disease
3 Function
4 Evolutionary Conservation
5 Publication Abstract from PubMed
6 See Also
7 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2z7f"

@@ Line 1: / Line 1: @@
 ==Crystal structure of the complex of human neutrophil elastase with 1/2SLPI==
 <StructureSection load='2z7f' size='340' side='right' caption='[[2z7f]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Leukocyte_elastase Leukocyte elastase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.37 3.4.21.37] </span></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2z7f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2z7f OCA], [http://pdbe.org/2z7f PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2z7f RCSB], [http://www.ebi.ac.uk/pdbsum/2z7f PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2z7f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2z7f OCA], [http://pdbe.org/2z7f PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2z7f RCSB], [http://www.ebi.ac.uk/pdbsum/2z7f PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2z7f ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 15: / Line 16: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/z7/2z7f_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/z7/2z7f_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

2z7f

From Proteopedia

Revision as of 09:30, 17 October 2018

Crystal structure of the complex of human neutrophil elastase with 1/2SLPI

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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