1MQA	Immune System	date	Sep 15, 2002
title	Crystal Structure Of High Affinity Alphal I Domain In The Ab Ligand Or Metal
authors	T.Shimaoka, T.Xiao, J.H.Liu, Y.Yang, Y.Dong, C.D.Jun, R.Zhang, J. J.H.Wang, T.A.Springer
compound		source
Molecule: Integrin Alpha-L Chain: A Fragment: Integrin Alphal I Domain Synonym: Leukocyte Adhesion Glycoprotein Lfa-1 Alpha Chain Function Associated Molecule 1, Alpha Chain; Cd11a; Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Lfa-1 (Alphalbeta2) Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet11
symmetry	Space Group: C 2 2 21	R_factor 0.249 R_Free 0.283
crystal cell	length a length b length c angle alpha angle beta angle gamma 61.864 121.324 54.059 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.50 Å
related structures	by homologous chain: 1CQP, 1RD4
Primary reference	Structures of the alpha L I domain and its complex with ICAM-1 reveal a shape-shifting pathway for integrin regulation., Shimaoka M, Xiao T, Liu JH, Yang Y, Dong Y, Jun CD, McCormack A, Zhang R, Joachimiak A, Takagi J, Wang JH, Springer TA, Cell 2003 Jan 10;112(1):99-111. PMID:12526797

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (33 Kb) [Save to disk] Biological Unit Coordinates (1mqa.pdb1.gz) 29 Kb CSU: Contacts of Structural Units for 1MQA Likely Quarternary Molecular Structure file(s) for 1MQA Structure Factors (72 Kb) Retrieve 1MQA in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1MQA from S2C, [Save to disk] Re-refined 1mqa structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1MQA in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.

Visual 3D analysis of 1MQA

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1MQA, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1mqaa_, region A [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1mqa] [1mqa_A] SWISS-PROT database: [P20701] Domain organization of [ITAL_HUMAN] by SWISSPFAM Domain found in 1MQA: [VWA ] by SMART

Other resources with information on 1MQA

Community annotation for 1MQA at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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Images from IMB Jena Image Library of Biological Macromolecules.

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