1XEG	Lyase	date	Sep 10, 2004
title	Crystal Structure Of Human Carbonic Anhydrase II Complexed W Acetate Ion
authors	P.A.Mazumdar, D.Kumaran, A.K.Das, S.Swaminathan
compound		source
Molecule: Carbonic Anhydrase II Chain: A Synonym: Carbonate Dehydratase II, Ca-II, Carbonic Anhydras Ec: 4.2.1.1 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Ca2 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3)
symmetry	Space Group: P 21 21 21	R_factor 0.180 R_Free 0.210
crystal cell	length a length b length c angle alpha angle beta angle gamma 42.312 71.749 74.010 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.81 Å
ligand	ACT, ZN	enzyme	Lyase E.C.4.2.1.1 BRENDA
Gene Ontology	Chain Function Process Component A
Primary reference	A novel acetate-bound complex of human carbonic anhydrase II., Mazumdar PA, Kumaran D, Swaminathan S, Das AK, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2008 Mar 1;64(Pt, 3):163-6. Epub 2008 Feb 23. PMID:18323598

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (49 Kb) [Save to disk] Biological Unit Coordinates (1xeg.pdb1.gz) 45 Kb LPC: Ligand-Protein Contacts for 1XEG CSU: Contacts of Structural Units for 1XEG Likely Quarternary Molecular Structure file(s) for 1XEG Structure Factors (157 Kb) Retrieve 1XEG in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1XEG from S2C, [Save to disk] Re-refined 1xeg structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1XEG 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 1XEG

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 1XEG, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1xeg_A] [1xeg] SWISS-PROT database: [P00918] Domain organization of [CAH2_HUMAN] by SWISSPFAM Domain found in 1XEG: [Carb_anhydrase ] by SMART

Other resources with information on 1XEG

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

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