1XCA	Retinoic Acid Transport	date	Dec 31, 1996
title	Apo-Cellular Retinoic Acid Binding Protein II
authors	X.Chen, X.Ji
compound		source
Molecule: Cellular Retinoic Acid Binding Protein Type II Chain: A, B Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Cell_line: Bl21 Cellular_location: Cytoplasm Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 (De3) Plyss Expression_system_cellular_location: Cytoplasm Expression_system_vector: Pet-17b Expression_system_plasmid: Bl21
symmetry	Space Group: P 1	R_factor 0.180 R_Free 0.282
crystal cell	length a length b length c angle alpha angle beta angle gamma 37.580 62.270 35.120 106.41 90.69 110.64
method	X-Ray Diffraction	resolution	2.30 Å
related structures	by homologous chain: 1CBI, 1CBQ
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structure of apo-cellular retinoic acid-binding protein type II (R111M) suggests a mechanism of ligand entry., Chen X, Tordova M, Gilliland GL, Wang L, Li Y, Yan H, Ji X, J Mol Biol 1998 May 8;278(3):641-53. PMID:9600845

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (54 Kb) [Save to disk] Biological Unit Coordinates (1xca.pdb1.gz) 25 Kb Biological Unit Coordinates (1xca.pdb2.gz) 26 Kb CSU: Contacts of Structural Units for 1XCA Likely Quarternary Molecular Structure file(s) for 1XCA Structure Factors (92 Kb) Retrieve 1XCA in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1XCA from S2C, [Save to disk] Re-refined 1xca structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1XCA 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 1XCA

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 1XCA, from MSDmotif at EBI Genome occurence of 1XCA's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1xcaa_, region A [Jmol] [rasmolscript] [script source]     - Domain d1xcab_, region B [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: [1xca_A] [1xca] [1xca_B] SWISS-PROT database: [P29373] Domain organization of [RABP2_HUMAN] by SWISSPFAM

Other resources with information on 1XCA

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

Movements, Movies and Images

Domain movements in 1XCA from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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