2C1M	Protein Transport Membrane Protein	date	Sep 16, 2005
title	Nup50:Importin-Alpha Complex
authors	Y.Matsuura, M.Stewart
compound		source
Molecule: Importin-Alpha2 Subunit Chain: A Fragment: Delta Ibb, Residues 75-498 Synonym: Karyopherin Alpha-2 Subunit, Srp1-Alpha, Pendulin, Cohort Protein 1, Pore Targeting Complex 58 Kda Subunit, Pt Importin Alpha P1; Engineered: Yes		Organism_scientific: Mus Musculus Organism_common: Mouse Organism_taxid: 10090 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Nucleoporin 50 Kda Chain: B Fragment: Residues 1-46 Synonym: Nup50, Nuclear Pore-Associated Protein 60 Kda-Like Engineered: Yes		Organism_scientific: Mus Musculus Organism_common: Mouse Organism_taxid: 10090 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 41 21 2	R_factor 0.221 R_Free 0.254
crystal cell	length a length b length c angle alpha angle beta angle gamma 74.467 74.467 188.023 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.20 Å
note	2C1M is a representative structure
Gene Ontology	Chain Function Process Component B
Primary reference	Nup50/Npap60 function in nuclear protein import complex disassembly and importin recycling., Matsuura Y, Stewart M, EMBO J. 2005 Nov 2;24(21):3681-9. Epub 2005 Oct 13. PMID:16222336

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (78 Kb) [Save to disk] Biological Unit Coordinates (2c1m.pdb1.gz) 74 Kb CSU: Contacts of Structural Units for 2C1M Likely Quarternary Molecular Structure file(s) for 2C1M Structure Factors (392 Kb) Retrieve 2C1M in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2C1M from S2C, [Save to disk] Re-refined 2c1m structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2C1M 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 2C1M

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 2C1M, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2c1m_B] [2c1m_A] [2c1m] SWISS-PROT database: [P52293] [Q9JIH2] Domain organization of [IMA2_MOUSE] [NUP50_MOUSE] by SWISSPFAM Domain found in 2C1M: [ARM ] by SMART

Other resources with information on 2C1M

Community annotation for 2C1M at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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