1MCO

THREE-DIMENSIONAL STRUCTURE OF A HUMAN IMMUNOGLOBULIN WITH A HINGE DELETION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Work: 0.232 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Three-dimensional structure of a human immunoglobulin with a hinge deletion.

Guddat, L.W.Herron, J.N.Edmundson, A.B.

(1993) Proc.Natl.Acad.Sci.Usa 90: 4271-4275

  • DOI: 10.1073/pnas.90.9.4271

  • PubMed Abstract: 
  • X-ray analysis at 3.2-A resolution revealed that the Mcg IgG1 (lambda chain) immunoglobulin is a compact T-shaped molecule. Because of the hinge deletion, the Fc fragment lobe is pulled tightly upward into the junction of the Fab arms. Along the mole ...

    X-ray analysis at 3.2-A resolution revealed that the Mcg IgG1 (lambda chain) immunoglobulin is a compact T-shaped molecule. Because of the hinge deletion, the Fc fragment lobe is pulled tightly upward into the junction of the Fab arms. Along the molecular twofold axis, the Fab arms are joined by an interchain disulfide bond between the two light chains. The antigen combining sites consist of large irregular cavities at the tips of the Fab regions. Potential complement (C1q) binding sites on Fc are sterically shielded by the Fab arms, but putative attachment sites are accessible for docking with the FcRI receptor on human monocytes and with protein A of Staphylococcus aureus.


    Related Citations: 
    • A Crystallographic Investigation of a Human Igg Immunoglobulin
      Edmundson, A.B.,Wood, M.K.,Schiffer, M.,Hardman, K.D.,Ainsworth, C.F.,Ely, K.R.
      (1970) J.Biol.Chem. 245: 2763
    • Three-Dimensional Structure of the Mcg Igg1 Immunoglobulin
      Rajan, S.S.,Ely, K.R.,Abola, E.E.,Wood, M.K.,Colman, P.M.,Athay, R.J.,Edmundson, A.B.
      (1983) Mol.Immunol. 20: 787
    • Conformational Flexibility in Immunoglobulins
      Edmundson, A.B.,Ely, K.R.,Abola, E.E.
      (1978) Contemp.Top.Mol.Immunol. 7: 95


    Organizational Affiliation

    Harrington Cancer Center, Amarillo, TX 79106.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
IGG1 MCG INTACT ANTIBODY (LIGHT CHAIN)
L
216N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
IGG1 MCG INTACT ANTIBODY (HEAVY CHAIN)
H
428N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 7 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GUP
Query on GUP

Download SDF File 
Download CCD File 
H
ALPHA-L-GULOPYRANOSIDE
C6 H12 O6
WQZGKKKJIJFFOK-BYIBVSMXSA-N
 Ligand Interaction
MAN
Query on MAN

Download SDF File 
Download CCD File 
H
ALPHA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-PQMKYFCFSA-N
 Ligand Interaction
GAL
Query on GAL

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Download CCD File 
H
BETA-D-GALACTOSE
C6 H12 O6
WQZGKKKJIJFFOK-FPRJBGLDSA-N
 Ligand Interaction
BMA
Query on BMA

Download SDF File 
Download CCD File 
H
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
NAG
Query on NAG

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Download CCD File 
H
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
FUL
Query on FUL

Download SDF File 
Download CCD File 
H
BETA-L-FUCOSE
6-DEOXY-BETA-L-GALACTOSE
C6 H12 O5
SHZGCJCMOBCMKK-KGJVWPDLSA-N
 Ligand Interaction
SIA
Query on SIA

Download SDF File 
Download CCD File 
H
O-SIALIC ACID
C11 H19 N O9
SQVRNKJHWKZAKO-YRMXFSIDSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Work: 0.232 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 88.400α = 90.00
b = 110.000β = 90.00
c = 186.700γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORphasing
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other