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.
1mfe
From Proteopedia
| Line 4: | Line 4: | ||
|PDB= 1mfe |SIZE=350|CAPTION= <scene name='initialview01'>1mfe</scene>, resolution 2.0Å | |PDB= 1mfe |SIZE=350|CAPTION= <scene name='initialview01'>1mfe</scene>, resolution 2.0Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= | + | |LIGAND= <scene name='pdbligand=ABE:ABEQUOSE'>ABE</scene>, <scene name='pdbligand=GLA:ALPHA+D-GALACTOSE'>GLA</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=PCA:PYROGLUTAMIC+ACID'>PCA</scene> |
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1mfe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1mfe OCA], [http://www.ebi.ac.uk/pdbsum/1mfe PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1mfe RCSB]</span> | ||
}} | }} | ||
| Line 24: | Line 27: | ||
[[Category: immunoglobulin]] | [[Category: immunoglobulin]] | ||
| - | ''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 22:15:30 2008'' |
Revision as of 19:15, 30 March 2008
| |||||||
| , resolution 2.0Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , , , | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
RECOGNITION OF A CELL-SURFACE OLIGO-SACCHARIDE OF PATHOGENIC SALMONELLA BY AN ANTIBODY FAB FRAGMENT
Overview
The 2.05 angstrom (A) resolution crystal structure of a dodecasaccharide-Fab complex revealed an unusual carbohydrate recognition site, defined by aromatic amino acids and a structured water molecule, rather than the carboxylic acid and amide side chains and a structured water molecule, rather than the carboxylic acid and amide side chains that are features of transport and other carbohydrate binding proteins. A trisaccharide epitope of a branched bacterial lipopolysaccharide fills this hydrophobic pocket (8 A deep by 7 A wide) in an entropy-assisted association (association constant = 2.05 x 10(5) liters per mole, enthalpy = -20.5 +/- 1.7 kilojoules per mole, and temperature times entropy = +10.0 +/- 2.9 kilojoules per mole). The requirement for the complementarity of van der Waals surfaces and the requirements of saccharide-saccharide and protein-saccharide hydrogen-bonding networks determine the antigen conformation adopted in the bound state.
About this Structure
1MFE is a Protein complex structure of sequences from [1]. Full crystallographic information is available from OCA.
Reference
Recognition of a cell-surface oligosaccharide of pathogenic Salmonella by an antibody Fab fragment., Cygler M, Rose DR, Bundle DR, Science. 1991 Jul 26;253(5018):442-5. PMID:1713710
Page seeded by OCA on Sun Mar 30 22:15:30 2008
