1age: Difference between revisions

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-[[Image:1age.gif|left|200px]]
- {{Structure
+==ANTAGONIST HIV-1 GAG PEPTIDES INDUCE STRUCTURAL CHANGES IN HLA B8-HIV-1 GAG PEPTIDE (GGKKKYRL-7R MUTATION)==
-|PDB= 1age |SIZE=350|CAPTION= <scene name='initialview01'>1age</scene>, resolution 2.3&Aring;
+<StructureSection load='1age' size='340' side='right'caption='[[1age]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
-|SITE=
+== Structural highlights ==
-|LIGAND=
+<table><tr><td colspan='2'>[[1age]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Human_immunodeficiency_virus_1 Human immunodeficiency virus 1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1AGE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1AGE FirstGlance]. <br>
-|ACTIVITY=
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3&#8491;</td></tr>
-|GENE= GAG ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1age FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1age OCA], [https://pdbe.org/1age PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1age RCSB], [https://www.ebi.ac.uk/pdbsum/1age PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1age ProSAT]</span></td></tr>
-}}
+</table>
+== Disease ==
+[https://www.uniprot.org/uniprot/B2MG_HUMAN B2MG_HUMAN] Defects in B2M are the cause of hypercatabolic hypoproteinemia (HYCATHYP) [MIM:[https://omim.org/entry/241600 241600]. Affected individuals show marked reduction in serum concentrations of immunoglobulin and albumin, probably due to rapid degradation.<ref>PMID:16549777</ref>   Note=Beta-2-microglobulin may adopt the fibrillar configuration of amyloid in certain pathologic states. The capacity to assemble into amyloid fibrils is concentration dependent. Persistently high beta(2)-microglobulin serum levels lead to amyloidosis in patients on long-term hemodialysis.<ref>PMID:3532124</ref> <ref>PMID:1336137</ref> <ref>PMID:7554280</ref> <ref>PMID:4586824</ref> <ref>PMID:8084451</ref> <ref>PMID:12119416</ref> <ref>PMID:12796775</ref> <ref>PMID:16901902</ref> <ref>PMID:16491088</ref> <ref>PMID:17646174</ref> <ref>PMID:18835253</ref> <ref>PMID:18395224</ref> <ref>PMID:19284997</ref>
+== Function ==
+[https://www.uniprot.org/uniprot/B2MG_HUMAN B2MG_HUMAN] Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system.
+== 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/ag/1age_consurf.spt"</scriptWhenChecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=1age ConSurf].
+<div style="clear:both"></div>
-'''ANTAGONIST HIV-1 GAG PEPTIDES INDUCE STRUCTURAL CHANGES IN HLA B8-HIV-1 GAG PEPTIDE (GGKKKYRL-7R MUTATION)'''
+==See Also==
+*[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 3D structures]]
+== References ==
-==Overview==
+<references/>
-In the cellular immune response, recognition by CTL-TCRs of viral antigens presented as peptides by HLA class I molecules, triggers destruction of the virally infected cell (Townsend, A.R.M., J. Rothbard, F.M. Gotch, G. Bahadur, D. Wraith, and A.J. McMichael. 1986. Cell. 44:959-968). Altered peptide ligands (APLs) which antagonise CTL recognition of infected cells have been reported (Jameson, S.C., F.R. Carbone, and M.J. Bevan. 1993. J. Exp. Med. 177:1541-1550). In one example, lysis of antigen presenting cells by CTLs in response to recognition of an HLA B8-restricted HIV-1 P17 (aa 24-31) epitope can be inhibited by naturally occurring variants of this peptide, which act as TCR antagonists (Klenerman, P., S. Rowland Jones, S. McAdam, J. Edwards, S. Daenke, D. Lalloo, B. Koppe, W. Rosenberg, D. Boyd, A. Edwards, P. Giangrande, R.E. Phillips, and A. McMichael. 1994. Nature (Lond.). 369:403-407). We have characterised two CTL clones and a CTL line whose interactions with these variants of P17 (aa 24-31) exhibit a variety of responses. We have examined the high resolution crystal structures of four of these APLs in complex with HLA B8 to determine alterations in the shape, chemistry, and local flexibility of the TCR binding surface. The variant peptides cause changes in the recognition surface by three mechanisms: changes contributed directly by the peptide, effects transmitted to the exposed peptide surface, and induced effects on the exposed framework of the peptide binding groove. While the first two mechanisms frequently lead to antagonism, the third has more profound effects on TCR recognition.
+__TOC__
+</StructureSection>
-==Disease==
-Known diseases associated with this structure: Abacavir hypersensitivity, susceptibility to OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=142830 142830]], Hypoproteinemia, hypercatabolic OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=109700 109700]], Spondyloarthropathy, susceptibility to, 1 OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=142830 142830]], Stevens-Johnson syndrome, carbamazepine-induced, susceptibility to OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=142830 142830]]
-==About this Structure==
-AGE is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [http://en.wikipedia.org/wiki/Human_immunodeficiency_virus_1 Human immunodeficiency virus 1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1AGE OCA].
-==Reference==
-Antagonist HIV-1 Gag peptides induce structural changes in HLA B8., Reid SW, McAdam S, Smith KJ, Klenerman P, O'Callaghan CA, Harlos K, Jakobsen BK, McMichael AJ, Bell JI, Stuart DI, Jones EY, J Exp Med. 1996 Dec 1;184(6):2279-86. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8976183 8976183]
 [[Category: Homo sapiens]]
 [[Category: Human immunodeficiency virus 1]]
-[[Category: Protein complex]]
+[[Category: Large Structures]]
-[[Category: Bell, J.]]
+[[Category: Bell J]]
-[[Category: Callaghan, C A.O.]]
+[[Category: Harlos K]]
-[[Category: Harlos, K.]]
+[[Category: Jakobsen BK]]
-[[Category: Jakobsen, B K.]]
+[[Category: Jones EY]]
-[[Category: Jones, E Y.]]
+[[Category: Klenerman P]]
-[[Category: Klenerman, P.]]
+[[Category: Mcadam S]]
-[[Category: Mcadam, S.]]
+[[Category: Mcmichael AJ]]
-[[Category: Mcmichael, A J.]]
+[[Category: O'Callaghan CA]]
-[[Category: Reid, S W.]]
+[[Category: Reid SW]]
-[[Category: Smith, K J.]]
+[[Category: Smith KJ]]
-[[Category: Stuart, D I.]]
+[[Category: Stuart DI]]
-[[Category: histocompatibility complex]]
-[[Category: hiv]]
-[[Category: hla b8]]
-[[Category: mhc class i]]
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 09:57:08 2008''