1BHO

MAC-1 I DOMAIN MAGNESIUM COMPLEX

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Work: 0.181 
  • R-Value Observed: 0.181 

wwPDB Validation   3D Report Full Report


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


Literature

Cation binding to the integrin CD11b I domain and activation model assessment

Baldwin, E.T., Sarver, R.W., Bryant Jr., G.L., Curry, K.A., Fairbanks, M.B., Finzel, B.C., Garlick, R.L., Heinrikson, R.L., Horton, N.C., Kelley, L.L., Mildner, A.M., Moon, J.B., Mott, J.E., Mutchler, V.T., Tomich, C.S., Watenpaugh, K.D., Wiley, V.H.

(1998) Structure 6: 923-935

  • DOI: 10.1016/s0969-2126(98)00093-8
  • Primary Citation of Related Structures:  
    1BHO, 1BHQ, 1IDN

  • PubMed Abstract: 

    • The integrin family of cell-surface receptors mediate cell adhesion through interactions with the extracellular matrix or other cell-surface receptors. The alpha chain of some integrin heterodimers includes an inserted 'I domain' of about 200 amino acids which binds divalent metal ions and is essential for integrin function ...

    The integrin family of cell-surface receptors mediate cell adhesion through interactions with the extracellular matrix or other cell-surface receptors. The alpha chain of some integrin heterodimers includes an inserted 'I domain' of about 200 amino acids which binds divalent metal ions and is essential for integrin function. Lee et al. proposed that the I domain of the integrin CD11b adopts a unique 'active' conformation when bound to its counter receptor. In addition, they proposed that the lack of adhesion in the presence of Ca2+ ion reflected the stabilization of an 'inactive' I-domain conformation. We set out to independently determine the structure of the CD11 b I domain and to evaluate the structural effects of divalent ion binding to this protein.

    Organizational Affiliation: 

    Structural, Analytical & Medicinal Chemistry, Pharmacia & Upjohn, Inc., Kalamazoo, MI 49001, USA. eric.t.baldwin@am.pnu.com



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CD11BA [auth 1],
B [auth 2]		190Homo sapiensMutation(s): 0 
Gene Names: ITGAM, CD11B, CR3A
UniProt & NIH Common Fund Data Resources
Find proteins for P11215 (Homo sapiens)
Explore P11215 
Go to UniProtKB:  P11215
PHAROS:  P11215
GTEx:  ENSG00000169896 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP11215
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG
Download Ideal Coordinates CCD File 
C [auth 1],
D [auth 2]		MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Work: 0.181 
  • R-Value Observed: 0.181 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 48.59α = 90
b = 123.27β = 90
c = 75.65γ = 90
Software Package:
Software NamePurpose
PROLSQrefinement
XENGENdata reduction
XENGENdata scaling

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

  • Deposited Date: 1998-06-10 
  • Released Date: 1998-11-04 
    • Deposition Author(s): Baldwin, E.T.

Revision History  (Full details and data files)

  • Version 1.0: 1998-11-04
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-03-07
    Changes: Data collection, Other