This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

1bz9

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Current revision

CRYSTAL STRUCTURE OF MURINE CLASS I MHC H2-DB COMPLEXED WITH A SYNTHETIC PEPTIDE P1027

Structural highlights

1bz9 is a 3 chain structure with sequence from Mus musculus. This structure supersedes the now removed PDB entry 1a9d. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.8Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

HA11_MOUSE Involved in the presentation of foreign antigens to the immune system.

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

The T cell receptor (TCR), from a xeno-reactive murine cytotoxic T lymphocyte clone AHIII12.2, recognizes murine H-2Db complexed with peptide p1027 (FAPGVFPYM), as well as human HLA-A2.1 complexed with peptide p1049 (ALWGFFPVL). A commonly proposed model (the molecular mimicry model) used to explain TCR cross-reactivity suggests that the molecular surfaces of the recognized complexes are similar in shape, charge, or both, in spite of the primary sequence differences. To examine the mechanism of xeno-reactivity of AHIII12.2, we have determined the crystal structures of A2/p1049 and Db/p1027 to 2.5 A and 2.8 A resolution, respectively. The crystal structures show that the TCR footprint regions of the two class I complexes are significantly different in shape and charge. We propose that rather than simple molecular mimicry, unpredictable arrays of common and differential contacts on the two class I complexes are used for their recognition by the same TCR.

Structural evidence of T cell xeno-reactivity in the absence of molecular mimicry.,Zhao R, Loftus DJ, Appella E, Collins EJ J Exp Med. 1999 Jan 18;189(2):359-70. PMID:9892618^[1]

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

References

↑ Zhao R, Loftus DJ, Appella E, Collins EJ. Structural evidence of T cell xeno-reactivity in the absence of molecular mimicry. J Exp Med. 1999 Jan 18;189(2):359-70. PMID:9892618

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/1bz9"

Categories: Large Structures | Mus musculus | Collins EJ | Zhao R

@@ Line 3: / Line 3: @@
 <StructureSection load='1bz9' size='340' side='right'caption='[[1bz9]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1bz9]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1a9d 1a9d]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BZ9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1BZ9 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1bz9]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1a9d 1a9d]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BZ9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BZ9 FirstGlance]. <br>
-</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=1bz9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bz9 OCA], [http://pdbe.org/1bz9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1bz9 RCSB], [http://www.ebi.ac.uk/pdbsum/1bz9 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1bz9 ProSAT]</span></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]] 2.8&#8491;</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=1bz9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bz9 OCA], [https://pdbe.org/1bz9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1bz9 RCSB], [https://www.ebi.ac.uk/pdbsum/1bz9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1bz9 ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/HA11_MOUSE HA11_MOUSE]] Involved in the presentation of foreign antigens to the immune system. [[http://www.uniprot.org/uniprot/B2MG_MOUSE B2MG_MOUSE]] Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system.
+[https://www.uniprot.org/uniprot/HA11_MOUSE HA11_MOUSE] Involved in the presentation of foreign antigens to the immune system.
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 30: / Line 31: @@
 ==See Also==
 *[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 3D structures]]
-*[[Major histocompatibility complex|Major histocompatibility complex]]
+*[[MHC 3D structures|MHC 3D structures]]
+*[[MHC I 3D structures|MHC I 3D structures]]
 == References ==
 <references/>
@@ Line 36: / Line 38: @@
 </StructureSection>
 [[Category: Large Structures]]
-[[Category: Lk3 transgenic mice]]
+[[Category: Mus musculus]]
-[[Category: Collins, E J]]
+[[Category: Collins EJ]]
-[[Category: Zhao, R]]
+[[Category: Zhao R]]
-[[Category: Murine class i mhc-peptide complex]]
-[[Category: Murine class i mhc-peptide complex complex]]

1bz9

From Proteopedia

Current revision

CRYSTAL STRUCTURE OF MURINE CLASS I MHC H2-DB COMPLEXED WITH A SYNTHETIC PEPTIDE P1027

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox