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.
2f54
From Proteopedia
(Difference between revisions)
| Line 1: | Line 1: | ||
==Directed evolution of human T cell receptor CDR2 residues by phage display dramatically enhances affinity for cognate peptide-MHC without increasing apparent cross-reactivity== | ==Directed evolution of human T cell receptor CDR2 residues by phage display dramatically enhances affinity for cognate peptide-MHC without increasing apparent cross-reactivity== | ||
| - | <StructureSection load='2f54' size='340' side='right' caption='[[2f54]], [[Resolution|resolution]] 2.70Å' scene=''> | + | <StructureSection load='2f54' size='340' side='right'caption='[[2f54]], [[Resolution|resolution]] 2.70Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[2f54]] is a 10 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[2f54]] is a 10 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=2F54 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2F54 FirstGlance]. <br> |
| - | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2f53|2f53]]</td></tr> | + | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2f53|2f53]]</div></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HLA-A, HLAA ([ | + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HLA-A, HLAA ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), B2M ([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'>[ | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2f54 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2f54 OCA], [https://pdbe.org/2f54 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2f54 RCSB], [https://www.ebi.ac.uk/pdbsum/2f54 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2f54 ProSAT]</span></td></tr> |
</table> | </table> | ||
== Disease == | == 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 == | == Function == | ||
| - | [[ | + | [[https://www.uniprot.org/uniprot/1A02_HUMAN 1A02_HUMAN]] Involved in the presentation of foreign antigens to the immune system. [[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 == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
| Line 33: | Line 33: | ||
==See Also== | ==See Also== | ||
| - | *[[Beta-2 microglobulin|Beta-2 microglobulin]] | + | *[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 3D structures]] |
| - | *[[ | + | *[[MHC 3D structures|MHC 3D structures]] |
| - | *[[T-cell receptor|T-cell receptor]] | + | *[[T-cell receptor 3D structures|T-cell receptor 3D structures]] |
== References == | == References == | ||
<references/> | <references/> | ||
| Line 41: | Line 41: | ||
</StructureSection> | </StructureSection> | ||
[[Category: Human]] | [[Category: Human]] | ||
| + | [[Category: Large Structures]] | ||
[[Category: Dunn, S M]] | [[Category: Dunn, S M]] | ||
[[Category: Jakobsen, B K]] | [[Category: Jakobsen, B K]] | ||
Revision as of 10:38, 17 February 2021
Directed evolution of human T cell receptor CDR2 residues by phage display dramatically enhances affinity for cognate peptide-MHC without increasing apparent cross-reactivity
| |||||||||||
