Biological Assembly 1  

 3D View: Structure | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1BC Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 3-mer - A2B1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 62.72 kDa 
• Atom Count: 4693 
• Residue Count: 562 
• Unique protein chains: 3

1H0D

Crystal structure of Human Angiogenin in complex with Fab fragment of its monoclonal antibody mAb 26-2F

• DOI: 10.2210/pdb1H0D/pdb

• Classification: IMMUNE SYSTEM/HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2002-06-19 Released: 2003-06-19 
• Deposition Author(s): Chavali, G.B., Papageorgiou, A.C., Acharya, K.R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.272 
• R-Value Work: 0.232 
• R-Value Observed: 0.232 

Literature

The Crystal Structure of Human Angiogenin in Complex with an Antitumor Neutralizing Antibody

Chavali, G.B., Papageorgiou, A.C., Olson, K., Fett, J., Hu, G., Shapiro, R., Acharya, K.R.

(2003) Structure 11: 875

• PubMed: 12842050 
• DOI: 10.1016/s0969-2126(03)00131-x
• Structures With Same Primary Citation


• PubMed Abstract: 
  

The murine monoclonal antibody 26-2F neutralizes the angiogenic and ribonucleolytic activities of human angiogenin (ANG) and is highly effective in preventing the establishment and metastatic dissemination of human tumors in athymic mice. Here we report a 2.0 A resolution crystal structure for the complex of ANG with the Fab fragment of 26-2F that reveals the detailed interactions between ANG and the complementarity-determining regions (CDRs) of the antibody. Surprisingly, Fab binding induces a dramatic conformational change in the cell binding region of ANG at the opposite end of the molecule from the combining site; crosslinking experiments indicate that this rearrangement also occurs in solution. The ANG-Fab complex structure should be invaluable for designing maximally humanized versions of 26-2F for potential clinical use.

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Organizational Affiliation: 

Department of Biology and Biochemistry, University of Bath, Claverton Down, BA2 7AY, Bath, United Kingdom.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
ANTIBODY FAB FRAGMENT, LIGHT CHAIN	A	216	Homo sapiens	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
ANTIBODY FAB FRAGMENT, HEAVY CHAIN	B	223	Homo sapiens	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details
ANGIOGENIN	C	123	Homo sapiens	Mutation(s): 0  Gene Names: ANG, RNASE5 EC: 3.1.27
Find proteins for P03950 (Homo sapiens) Explore P03950  Go to UniProtKB:  P03950
NIH Common Fund Data Resources
PHAROS  P03950 GTEx  ENSG00000214274

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	A, B, C	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
GOL	A, B	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
PCA	C	L-PEPTIDE LINKING	C5 H7 N O3		GLN

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.272 
• R-Value Work: 0.232 
• R-Value Observed: 0.232 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 120.58	α = 90
b = 72.53	β = 112.46
c = 86.99	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2002-06-19 
• Released Date: 2003-06-19 
Deposition Author(s): Chavali, G.B., Papageorgiou, A.C., Acharya, K.R.

Revision History 

• Version 1.0: 2003-06-19
  Type: Initial release
  
• Version 1.1: 2011-10-12
  Changes: Derived calculations, Non-polymer description, Other, Refinement description, Structure summary, Version format compliance
• Version 2.0: 2020-03-11
  Changes: Derived calculations, Polymer sequence