2BEC Metal Binding Protein Transport Protein date Oct 24, 2005
title Crystal Structure Of Chp2 In Complex With Its Binding Region In Nhe1 And Insights Into The Mechanism Of Ph Regulation
authors Y.Ben Ammar, S.Takeda, T.Hisamitsu, H.Mori, S.Wakabayashi
compound source
Molecule: Calcineurin B Homologous Protein 2
Chain: A
Synonym: Hepatocellular Carcinoma-Associated Antigen 520, Human Calcineurin Homologous Protein Chp2;
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21-Star
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet11

Molecule: Sodiumhydrogen Exchanger 1
Chain: B
Fragment: Residues 503-545
Synonym: Na(+)H(+) Exchanger 1, Nhe-1, Solute Carrier Family 9 Member 1, Na(+)H(+) Antiporter, Amiloride- Sensitive, Apnh;
Engineered: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21-Star
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet24
symmetry Space Group: P 43
R_factor 0.218 R_Free 0.287
crystal
cell
length a length b length c angle alpha angle beta angle gamma
49.262 49.262 102.587 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.70 Å
ligand YT3 enzyme
note 2BEC is a representative structure
Gene
Ontology
ChainFunctionProcessComponent
A


B


Primary referenceCrystal structure of CHP2 complexed with NHE1-cytosolic region and an implication for pH regulation., Ammar YB, Takeda S, Hisamitsu T, Mori H, Wakabayashi S, EMBO J. 2006 Jun 7;25(11):2315-25. Epub 2006 May 18. PMID:16710297
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (39 Kb) [Save to disk]
  • Biological Unit Coordinates (2bec.pdb1.gz) 36 Kb
  • LPC: Ligand-Protein Contacts for 2BEC
  • CSU: Contacts of Structural Units for 2BEC
  • Likely Quarternary Molecular Structure file(s) for 2BEC
  • Structure Factors (51 Kb)
  • Retrieve 2BEC in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2BEC from S2C, [Save to disk]
  • Re-refined 2bec structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2BEC 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 2BEC
  • Cartoon representation from PDB Cartoon
  • 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
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 2BEC, from MSDmotif at EBI
  • Fold representative 2bec from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2bec_B] [2bec] [2bec_A]
  • SWISS-PROT database: [O43745] [P19634]
  • Belongs to the monovalent cation:proton antiporter-1 (cpa1) family according to TCDB.
  • Domain organization of [CHP2_HUMAN] [SL9A1_HUMAN] by SWISSPFAM
  • Domain found in 2BEC: [EFh ] by SMART
  • Other resources with information on 2BEC
  • Community annotation for 2BEC at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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