1M4K	Immune System	date	Jul 03, 2002
title	Crystal Structure Of The Human Natural Killer Cell Activator Kir2ds2 (Cd158j)
authors	X.Saulquin, L.N.Gastinel, E.Vivier
compound		source
Molecule: Killer Cell Immunoglobulin-Like Receptor 2ds2 Chain: A Synonym: Kir2ds2, Mhc Class I Nk Cell Receptor, Natural Kil Associated Transcript 5, Nkat-5, P58 Natural Killer Cell Re Clone Cl-49, P58 Nk Receptor, Nk Receptor 183 Acti; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 31 2 1	R_factor 0.221 R_Free 0.247
crystal cell	length a length b length c angle alpha angle beta angle gamma 97.535 97.535 54.375 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand	EDO, SO4	enzyme
related structures	by homologous chain: 1IM9, 1NKR
Primary reference	Crystal structure of the human natural killer cell activating receptor KIR2DS2 (CD158j)., Saulquin X, Gastinel LN, Vivier E, J Exp Med 2003 Apr 7;197(7):933-8. Epub 2003 Mar 31. PMID:12668644

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (36 Kb) [Save to disk] Biological Unit Coordinates (1m4k.pdb1.gz) 32 Kb LPC: Ligand-Protein Contacts for 1M4K CSU: Contacts of Structural Units for 1M4K Likely Quarternary Molecular Structure file(s) for 1M4K Structure Factors (143 Kb) Retrieve 1M4K in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1M4K from S2C, [Save to disk] Re-refined 1m4k structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1M4K in 3D

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Visual 3D analysis of 1M4K

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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 1M4K, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1m4ka2, region A:104-200 [Jmol] [rasmolscript] [script source]     - Domain d1m4ka1, region A:8-103 [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: [1m4k_A] [1m4k] SWISS-PROT database: [P43631] Domain organization of [KI2S2_HUMAN] by SWISSPFAM Domains found in 1M4K: [IG] [IG_like ] by SMART

Other resources with information on 1M4K

Community annotation for 1M4K at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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