2ASU

Crystal Structure of the beta-chain of HGFl/MSP

DOI: 10.2210/pdb2ASU/pdb

Classification: HYDROLASE
Organism(s): Homo sapiens
Expression System: Mus musculus
Mutation(s): Yes

Deposited: 2005-08-24 Released: 2005-11-10
Deposition Author(s): Carafoli, F., Chirgadze, D.Y., Blundell, T.L., Gherardi, E.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.85 Å
R-Value Free: 0.237
R-Value Work: 0.198
R-Value Observed: 0.200

wwPDB Validation 3D Report Full Report

This is version 1.3 of the entry. See complete history.

Literature

Crystal structure of the beta-chain of human hepatocyte growth factor-like/macrophage stimulating protein.

Carafoli, F., Chirgadze, D.Y., Blundell, T.L., Gherardi, E.

(2005) FEBS J 272: 5799-5807

PubMed: 16279944 Search on PubMed
DOI: 10.1111/j.1742-4658.2005.04968.x
Primary Citation of Related Structures:
2ASU

PubMed Abstract:

Hepatocyte growth factor like/macrophage stimulating protein (HGFl/MSP) and hepatocyte growth factor/scatter factor (HGF/SF) define a distinct family of vertebrate-specific growth factors structurally related to the blood proteinase precursor plasminogen and with important roles in development and cancer. Although the two proteins share a similar domain structure and mechanism of activation, there are differences between HGFl/MSP and HGF/SF in terms of the contribution of individual domains to receptor binding. Here we present a crystal structure of the 30 kDa beta-chain of human HGFl/MSP, a serine proteinase homology domain containing the high-affinity binding site for the RON receptor. The structure describes at 1.85 Angstrom resolution the region of the domain corresponding to the receptor binding site recently defined in the HGF/SF beta-chain, namely the central cleft harboring the three residues corresponding to the catalytic ones of active proteinases (numbers in brackets define the sequence position according to the standard chymotrypsinogen numbering system) [Gln522 (c57), Gln568 (c102) and Tyr661 (c195)] and an adjacent loop flanking the S1 specificity pocket and containing residues Asn682 (c217) and Arg683 (c218) previously shown to be essential for binding of HGFl/MSP to the RON receptor. The study confirms the concept that the serine proteinase homology domains of HGFl/MSP and HGF/SF bind their receptors in an 'enzyme-substrate' mode, reflecting the common evolutionary origin of the plasminogen-related growth factors and the proteinases of the clotting and fibrinolytic pathways. However, analysis of the intermolecular interactions in the crystal lattice of beta-chain HGFl/MSP fails to show the same contacts seen in the HGF/SF structures and does not support a conserved mode of dimerization of the serine proteinase homology domains of HGFl/MSP and HGF/SF responsible for receptor activation.

Organizational Affiliation:

MRC Centre, Hills Road, Cambridge, UK.

Macromolecules

Find similar proteins by: Sequence | Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hepatocyte growth factor-like protein	A	19	Homo sapiens	Mutation(s): 0 Gene Names: MST1, HGFL, D3F15S2, DNF15S2
Find proteins for P26927 (Homo sapiens) Explore P26927 Go to UniProtKB: P26927
NIH Common Fund Data Resources
PHAROS P26927 GTEx ENSG00000173531
Protein Feature View Expand
Reference Sequence

Find similar proteins by:

(by identity cutoff) | Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Hepatocyte growth factor-like protein	B	234	Homo sapiens	Mutation(s): 1 Gene Names: MST1, HGFL, D3F15S2, DNF15S2
Find proteins for P26927 (Homo sapiens) Explore P26927 Go to UniProtKB: P26927
NIH Common Fund Data Resources
PHAROS P26927 GTEx ENSG00000173531
Protein Feature View Expand
Reference Sequence