ISDA: 1C1E

Deposition Date 1999-07-22

Release Date 2000-03-01

Last Version Date 2024-10-16

Entry Detail

PDB ID:

1C1E

Keywords:

IMMUNE SYSTEM

Title:

CRYSTAL STRUCTURE OF A DIELS-ALDERASE CATALYTIC ANTIBODY 1E9 IN COMPLEX WITH ITS HAPTEN

Biological Source:

Source Organism:

Mus musculus (Taxon ID: 10090)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.90 Å

R-Value Free:

0.29

R-Value Work:

0.23

R-Value Observed:

0.25

Space Group:

C 2 2 21

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Macromolecular Entities

Polymer Type:polypeptide(L)
Molecule:CATALYTIC ANTIBODY 1E9 (HEAVY CHAIN)
Chain IDs:B (auth: H)
Chain Length:219
Number of Molecules:1
Biological Source:Mus musculus

Polymer Type:polypeptide(L)
Molecule:CATALYTIC ANTIBODY 1E9 (LIGHT CHAIN)
Chain IDs:A (auth: L)
Chain Length:216
Number of Molecules:1
Biological Source:Mus musculus

Ligand Molecules

ENH

MLT

Primary Citation

Evolution of shape complementarity and catalytic efficiency from a primordial antibody template.

Xu, J, Deng, Q, Chen, J, Houk, K.N, Bartek, J, Hilvert, D, Wilson, I.A.Show

Science 286 2345 2348 (1999)

PMID: 10600746 DOI: 10.1126/science.286.5448.2345

Abstact

The crystal structure of an efficient Diels-Alder antibody catalyst at 1.9 angstrom resolution reveals almost perfect shape complementarity with its transition state analog. Comparison with highly related progesterone and Diels-Alderase antibodies that arose from the same primordial germ line template shows the relatively subtle mutational steps that were able to evolve both structural complementarity and catalytic efficiency.

Legend

Protein

Chemical

Disease

Primary Citation of related structures

Abstact

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