3cvh

From Proteopedia

(Difference between revisions)

Revision as of 12:33, 30 August 2023

How TCR-like antibody recognizes MHC-bound peptide

Structural highlights

3cvh is a 10 chain structure with sequence from Gallus gallus and Mus musculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.9Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

OVAL_CHICK Non-inhibitory serpin. Storage protein of egg white.^[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

We determined the crystal structures of the T cell receptor (TCR)-like antibody 25-D1.16 Fab fragment bound to a complex of SIINFEKL peptide from ovalbumin and the H-2K(b) molecule. Remarkably, this antibody directly "reads" the structure of the major histocompatibility complex (MHC)-bound peptide, employing the canonical diagonal binding mode utilized by most TCRs. This is in marked contrast with another TCR-like antibody, Hyb3, bound to melanoma peptide MAGE-A1 in association with HLA-A1 MHC class I. Hyb3 assumes a non-canonical orientation over its cognate peptide-MHC and appears to recognize a conformational epitope in which the MHC contribution is dominant. We conclude that TCR-like antibodies can recognize MHC-bound peptide via two different mechanisms: one is similar to that exploited by the preponderance of TCRs and the other requires a non-canonical antibody orientation over the peptide-MHC complex.

How a T cell receptor-like antibody recognizes major histocompatibility complex-bound peptide.,Mareeva T, Martinez-Hackert E, Sykulev Y J Biol Chem. 2008 Oct 24;283(43):29053-9. Epub 2008 Aug 14. PMID:18703505^[3]

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

References

↑ Meek RL, Walsh KA, Palmiter RD. The signal sequence of ovalbumin is located near the NH2 terminus. J Biol Chem. 1982 Oct 25;257(20):12245-51. PMID:6749856
↑ Robinson A, Meredith C, Austen BM. Isolation and properties of the signal region from ovalbumin. FEBS Lett. 1986 Jul 28;203(2):243-6. PMID:3732511
↑ Mareeva T, Martinez-Hackert E, Sykulev Y. How a T cell receptor-like antibody recognizes major histocompatibility complex-bound peptide. J Biol Chem. 2008 Oct 24;283(43):29053-9. Epub 2008 Aug 14. PMID:18703505 doi:10.1074/jbc.M804996200

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/3cvh"

@@ Line 4: / Line 4: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[3cvh]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CVH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3CVH 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;'>[[3cvi|3cvi]]</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]] 2.9&#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=3cvh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3cvh OCA], [https://pdbe.org/3cvh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3cvh RCSB], [https://www.ebi.ac.uk/pdbsum/3cvh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3cvh ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[https://www.uniprot.org/uniprot/HA1B_MOUSE HA1B_MOUSE]] Involved in the presentation of foreign antigens to the immune system. [[https://www.uniprot.org/uniprot/OVAL_CHICK OVAL_CHICK]] Non-inhibitory serpin. Storage protein of egg white.<ref>PMID:6749856</ref> <ref>PMID:3732511</ref>  [[https://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/OVAL_CHICK OVAL_CHICK] Non-inhibitory serpin. Storage protein of egg white.<ref>PMID:6749856</ref> <ref>PMID:3732511</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 32: / Line 32: @@
 *[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 3D structures]]
 *[[MHC 3D structures|MHC 3D structures]]
+*[[MHC I 3D structures|MHC I 3D structures]]
 == References ==
 <references/>
@@ Line 39: / Line 40: @@
 [[Category: Large Structures]]
 [[Category: Mus musculus]]
-[[Category: Mareeva, T]]
+[[Category: Mareeva T]]
-[[Category: Martinez-Hackert, E]]
+[[Category: Martinez-Hackert E]]
-[[Category: Sykulev, Y]]
+[[Category: Sykulev Y]]
-[[Category: Allergen]]
-[[Category: Glycoprotein]]
-[[Category: Immune response]]
-[[Category: Immune system]]
-[[Category: Immunoglobulin domain]]
-[[Category: Membrane]]
-[[Category: Mhc]]
-[[Category: Mhc i]]
-[[Category: Phosphoprotein]]
-[[Category: Secreted]]
-[[Category: Tcr]]
-[[Category: Transmembrane]]

3cvh

From Proteopedia

Revision as of 12:33, 30 August 2023

How TCR-like antibody recognizes MHC-bound peptide

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