1CT8

CATALYTIC ANTIBODY 7C8 COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.211 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Diverse structural solutions to catalysis in a family of antibodies.

Gigant, B.Tsumuraya, T.Fujii, I.Knossow, M.

(1999) Structure 7: 1385-1393

  • DOI: 10.1016/s0969-2126(00)80028-3
  • Primary Citation of Related Structures:  
    1CT8

  • PubMed Abstract: 
  • Small organic molecules coupled to a carrier protein elicit an antibody response on immunisation. The diversity of this response has been found to be very narrow in several cases. Some antibodies also catalyse chemical reactions. Such catalytic antibodies are usually identified among those that bind tightly to an analogue of the transition state (TSA) of the relevant reaction; therefore, catalytic antibodies are also thought to have restricted diversity ...

    Small organic molecules coupled to a carrier protein elicit an antibody response on immunisation. The diversity of this response has been found to be very narrow in several cases. Some antibodies also catalyse chemical reactions. Such catalytic antibodies are usually identified among those that bind tightly to an analogue of the transition state (TSA) of the relevant reaction; therefore, catalytic antibodies are also thought to have restricted diversity. To further characterise this diversity, we investigated the structure and biochemistry of the catalytic antibody 7C8, one of the most efficient of those which enhance the hydrolysis of chloramphenicol esters, and compared it to the other catalytic antibodies elicited in the same immunisation.


    Organizational Affiliation

    CNRS UPR 9063, Bat. 34 CNRS, Laboratoire d'Enzymologie et Biochimie Structurales, Gif-sur-Yvette Cedex, 91198, France.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
7C8 FAB FRAGMENT; SHORT CHAINA, C214Mus musculusMutation(s): 0 
Gene Names: Igkc
UniProt
Find proteins for P01837 (Mus musculus)
Explore P01837 
Go to UniProtKB:  P01837
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
7C8 FAB FRAGMENT; LONG CHAINB, D220Mus musculusMutation(s): 0 
Gene Names: Ighg1Igh-4
UniProt
Find proteins for P01868 (Mus musculus)
Explore P01868 
Go to UniProtKB:  P01868
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TAA (Subject of Investigation/LOI)
Query on TAA

Download Ideal Coordinates CCD File 
F [auth B], H [auth D][4-(2,2,2-TRIFLUORO-ACETYLAMINO)-BENZYL]-PHOSPHONIC ACID MONO-[2-(2,2-DICHLORO-1-HYDROXY-ETHYLAMINO)-3-HYDROXY-1-(4-NITRO-PHENYL)-PROPYL] ESTER
C20 H21 Cl2 F3 N3 O8 P
PXDSVFRUDNCBRZ-NUJGCVRESA-N
 Ligand Interaction
SO4
Query on SO4

Download Ideal Coordinates CCD File 
E [auth A], G [auth C]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
TAA Binding MOAD:  1CT8 Kd: 300 (nM) from 1 assay(s)
PDBBind:  1CT8 Kd: 300 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.211 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.558α = 90
b = 65.612β = 95.56
c = 117.761γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
X-PLORrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-11-10
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance