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1xqg

From Proteopedia

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3.10 A crystal structure of maspin, Space group P 4 21 2

Structural highlights

1xqg is a 2 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 3.1Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

SPB5_HUMAN Tumor suppressor. It blocks the growth, invasion, and metastatic properties of mammary tumors. As it does not undergo the S (stressed) to R (relaxed) conformational transition characteristic of active serpins, it exhibits no serine protease inhibitory activity.

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

Maspin, a member of the serpin superfamily, has tumor suppressing activity against breast and prostate cancer. Maspin inhibits tumor growth by blocking cell invasion, and its reactive center loop (RCL) is thought to mediate this activity. To understand this function on the molecular level, we have solved the three-dimensional structure of Maspin to 3.1 A resolution. The molecular structure shows the characteristic features of the serpin fold, but the RCL of Maspin is unique in length, composition, and placement. Although the RCL of Maspin is accessible and cleavable by some proteinases, it functions in the uncleaved, constrained conformation observed here. These structural results will contribute to our understanding of the mechanism by which Maspin suppresses tumors.

Crystal structure of human maspin, a serpin with antitumor properties: reactive center loop of maspin is exposed but constrained.,Al-Ayyoubi M, Gettins PG, Volz K J Biol Chem. 2004 Dec 31;279(53):55540-4. Epub 2004 Oct 22. PMID:15501821^[1]

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

References

↑ Al-Ayyoubi M, Gettins PG, Volz K. Crystal structure of human maspin, a serpin with antitumor properties: reactive center loop of maspin is exposed but constrained. J Biol Chem. 2004 Dec 31;279(53):55540-4. Epub 2004 Oct 22. PMID:15501821 doi:10.1074/jbc.M409957200

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1xqg"

Categories: Homo sapiens | Large Structures | Al-Ayyoubi M | Gettins PG | Volz K

@@ Line 3: / Line 3: @@
 <StructureSection load='1xqg' size='340' side='right'caption='[[1xqg]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1xqg]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1XQG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1XQG FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1xqg]] is a 2 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=1XQG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1XQG FirstGlance]. <br>
-</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1xqj|1xqj]]</div></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.1&#8491;</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SERPINB5, PI5 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=1xqg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xqg OCA], [https://pdbe.org/1xqg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1xqg RCSB], [https://www.ebi.ac.uk/pdbsum/1xqg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1xqg ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[https://www.uniprot.org/uniprot/SPB5_HUMAN SPB5_HUMAN]] Tumor suppressor. It blocks the growth, invasion, and metastatic properties of mammary tumors. As it does not undergo the S (stressed) to R (relaxed) conformational transition characteristic of active serpins, it exhibits no serine protease inhibitory activity.
+[https://www.uniprot.org/uniprot/SPB5_HUMAN SPB5_HUMAN] Tumor suppressor. It blocks the growth, invasion, and metastatic properties of mammary tumors. As it does not undergo the S (stressed) to R (relaxed) conformational transition characteristic of active serpins, it exhibits no serine protease inhibitory activity.
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 36: / Line 35: @@
 __TOC__
 </StructureSection>
-[[Category: Human]]
+[[Category: Homo sapiens]]
 [[Category: Large Structures]]
-[[Category: Al-Ayyoubi, M]]
+[[Category: Al-Ayyoubi M]]
-[[Category: Gettins, P G]]
+[[Category: Gettins PG]]
-[[Category: Volz, K]]
+[[Category: Volz K]]
-[[Category: Antitumor protein]]
-[[Category: Maspin]]
-[[Category: Serpin]]
-[[Category: Tumor suppression]]

1xqg

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Current revision

3.10 A crystal structure of maspin, Space group P 4 21 2

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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