ISDA

Entry Detail

PDB ID:

2A91

Keywords:

SIGNALING PROTEIN,TRANSFERASE,MEMBRANE PROTEIN

Title:

Crystal structure of ErbB2 domains 1-3

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

Cricetulus griseus

PDB Version:

Deposition Date:

2005-07-11

Release Date:

2005-07-26

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.50 Å

R-Value Free:

0.26

R-Value Work:

0.22

R-Value Observed:

0.22

Space Group:

P 21 21 21

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Receptor tyrosine-protein kinase erbB-2
Chain IDs:A
Chain Length:517
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P04626 Pfam ID:PF01030, PF00757 EC:2.7.10.1

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
ASN	A	ASN	GLYCOSYLATION SITE

Ligand Molecules

NAG

Primary Citation

The Crystal Structure of a Truncated ErbB2 Ectodomain Reveals an Active Conformation, Poised to Interact with Other ErbB Receptors

Garrett, T.P.J, McKern, N.M, Lou, M, Elleman, T.C, Adams, T.E, Lovrecz, G.O, Kofler, M, Jorissen, R.N, Nice, E.C, Burgess, A.W.Show

Mol.Cell 11 495 505 (2003)

PMID: 12620236 DOI: 10.1016/S1097-2765(03)00048-0

Abstact

ErbB2 does not bind ligand, yet appears to be the major signaling partner for other ErbB receptors by forming heteromeric complexes with ErbB1, ErbB3, or ErbB4. The crystal structure of residues 1-509 of ErbB2 at 2.5 A resolution reveals an activated conformation similar to that of the EGFR when complexed with ligand and very different from that seen in the unactivated forms of ErbB3 or EGFR. The structure explains the inability of ErbB2 to bind known ligands and suggests why ErbB2 fails to form homodimers. Together, the data suggest a model in which ErbB2 is already in the activated conformation and ready to interact with other ligand-activated ErbB receptors.

Legend

Protein

Chemical

Disease

Primary Citation of related structures