Cited by 202Protease and Inhibitor MechanismsEnzyme Structure and FunctionBlood Coagulation and Thrombosis Mechanisms

Crystal structures of VAP1 reveal ADAMs' MDC domain architecture and its unique C‐shaped scaffold

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Takeda, Soichi, Igarashi, Tomoko, Mori, Hidezo, Araki, Satohiko·2006·The EMBO Journal

Abstract

ADAMs (a disintegrin and metalloproteinase) are sheddases possessing extracellular metalloproteinase/disintegrin/cysteine-rich (MDC) domains. ADAMs uniquely display both proteolytic and adhesive activities on the cell surface, however, most of their physiological targets and adhesion mechanisms remain unclear. Here for the first time, we reveal the ADAMs' MDC architecture and a potential target-binding site by solving crystal structures of VAP1, a snake venom homolog of mammalian ADAMs. The D-domain protrudes from the M-domain opposing the catalytic site and constituting a C-shaped arm with cores of Ca2+ ions. The disintegrin-loop, supposed to interact with integrins, is packed by the C-domain and inaccessible for protein binding. Instead, the hyper-variable region (HVR) in the C-domain, which has a novel fold stabilized by the strictly conserved disulfide bridges, constitutes a potential protein-protein adhesive interface. The HVR is located at the distal end of the arm and faces toward the catalytic site. The C-shaped structure implies interplay between the ADAMs' proteolytic and adhesive domains and suggests a molecular mechanism for ADAMs' target recognition for shedding.

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Crossref · 10.1038/sj.emboj.7601131

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  • Based on the model, known disease-causing mutations in TANGO2 could act by hindering catalysis (R26K, R32Q, and L50P, near active site) or produce steric clashes (G154R) in the hydrophobic core.

    “Based on the model, known mutations that cause disease (magenta spheres in Fig. 3A) could act by hindering catalysis (R26K, R32Q, and L50P, near active site) or produce steric clashes (G154R) (19) in the hydrophobic core.”

    From Accurate prediction of protein structures and interactions using a 3-track network (2021) · cites this paper as [19]

    The Structural analysis section describes a crystal model of VAP1, not a model of TANGO2. Searches for TANGO2, G154R, R26K, R32Q, and L50P found no passage addressing those mutations or the proposed effects on catalysis and the hydrophobic core. (LLM, conf=0.77)

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Authors
Takeda, S., Igarashi, T., Mori, H., & Araki, S.
Affiliations
  • SPring-8 (JP)
  • National Cerebral and Cardiovascular Center (JP)
  • Nagoya University (JP)
Corresponding author
Takeda, Soichi
Venue
The EMBO Journal
Published
2006-05-11
Volume
25
Issue
11
Pages
2388-2396
ISSN
  • 0261-4189 (ISSN-L)
  • 1460-2075
OpenAlex
W2000001290
Cited by
202
References
45
Citations by year
2025: 10 · 2024: 4 · 2023: 4 · 2022: 4 · 2021: 9 · 2020: 4 · 2019: 5 · 2018: 2 · 2017: 11 · 2016: 12 · 2015: 7 · 2014: 14 · 2013: 9 · 2012: 17
FWCI
8.36
Type
journal article
Language
en
Open access
Locations
  • The EMBO Journal (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Takeda Science Foundation
  • Senri Life Science Foundation
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Protease and Inhibitor Mechanisms
  • Physical Sciences › Materials Science › Materials Chemistry › Enzyme Structure and Function
  • Health Sciences › Medicine › Hematology › Blood Coagulation and Thrombosis Mechanisms
Keywords
ADAMS, snake venom proteins, disintegrins, metalloproteinases, hypervariable region, disulfide bonds, calcium ions, extracellular matrix, crystal structure
MeSH terms
Amino Acid Sequence, Animals, Crotalid Venoms, Humans, Metalloendopeptidases, Models, Molecular, Molecular Sequence Data, Sequence Alignment, Protein Structure, Tertiary, Crystallography, X-Ray, Apoptosis Regulatory Proteins, ADAM Proteins

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