1ndg: Difference between revisions
No edit summary |
No edit summary |
||
| Line 4: | Line 4: | ||
|PDB= 1ndg |SIZE=350|CAPTION= <scene name='initialview01'>1ndg</scene>, resolution 1.90Å | |PDB= 1ndg |SIZE=350|CAPTION= <scene name='initialview01'>1ndg</scene>, resolution 1.90Å | ||
|SITE= | |SITE= | ||
|LIGAND= <scene name='pdbligand=ACY:ACETIC ACID'>ACY</scene> | |LIGAND= <scene name='pdbligand=ACY:ACETIC+ACID'>ACY</scene> | ||
|ACTIVITY= [http://en.wikipedia.org/wiki/Lysozyme Lysozyme], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.17 3.2.1.17] | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Lysozyme Lysozyme], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.17 3.2.1.17] </span> | ||
|GENE= | |GENE= | ||
|DOMAIN= | |||
|RELATEDENTRY=[[1dqj|1DQJ]], [[1dqq|1DQQ]], [[1dqm|1DQM]], [[1nby|1NBY]], [[1nbz|1NBZ]], [[1ndg|1NDG]], [[1ndm|1NDM]] | |||
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ndg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ndg OCA], [http://www.ebi.ac.uk/pdbsum/1ndg PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1ndg RCSB]</span> | |||
}} | }} | ||
| Line 29: | Line 32: | ||
[[Category: Smith-Gill, S J.]] | [[Category: Smith-Gill, S J.]] | ||
[[Category: Yang, F.]] | [[Category: Yang, F.]] | ||
[[Category: | [[Category: antibody]] | ||
[[Category: | [[Category: hyhel-8]] | ||
[[Category: lysozyme]] | |||
[[Category: mutant]] | |||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 22:28:53 2008'' | ||
Revision as of 22:28, 30 March 2008
| |||||||
| , resolution 1.90Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Activity: | Lysozyme, with EC number 3.2.1.17 | ||||||
| Related: | 1DQJ, 1DQQ, 1DQM, 1NBY, 1NBZ, 1NDG, 1NDM
| ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of Fab fragment of antibody HyHEL-8 complexed with its antigen lysozyme
OverviewOverview
The process whereby the immune system generates antibodies of higher affinities during a response to antigen (affinity maturation) is a prototypical example of molecular evolution. Earlier studies have been confined to antibodies specific for small molecules (haptens) rather than for proteins. We compare the structures of four antibodies bound to the same site on hen egg white lysozyme (HEL) at different stages of affinity maturation. These X-ray snapshots reveal that binding is enhanced, not through the formation of additional hydrogen bonds or van der Waals contacts or by an increase in total buried surface, but by burial of increasing amounts of apolar surface at the expense of polar surface, accompanied by improved shape complementarity. The increase in hydrophobic interactions results from highly correlated rearrangements in antibody residues at the interface periphery, adjacent to the central energetic hot spot. This first visualization of the maturation of antibodies to protein provides insights into the evolution of high affinity in other protein-protein interfaces.
About this StructureAbout this Structure
1NDG is a Protein complex structure of sequences from Gallus gallus and Mus musculus. Full crystallographic information is available from OCA.
ReferenceReference
X-ray snapshots of the maturation of an antibody response to a protein antigen., Li Y, Li H, Yang F, Smith-Gill SJ, Mariuzza RA, Nat Struct Biol. 2003 Jun;10(6):482-8. PMID:12740607
Page seeded by OCA on Sun Mar 30 22:28:53 2008