3E3I	Lyase	date	Aug 07, 2008
title	H. Influenzae Beta-Carbonic Anhydrase, Variant G41a With 100 Bicarbonate
authors	R.S.Rowlett, H.Failing
compound		source
Molecule: Carbonic Anhydrase 2 Chain: A, B, C, D, E, F, G, H, I, J, K, L Synonym: Carbonate Dehydratase 2; Beta Carbonic Anhydrase Ec: 4.2.1.1 Engineered: Yes Mutation: Yes		Organism_scientific: Haemophilus Influenzae Organism_taxid: 727 Gene: Can, Hi1301 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Jm109 Expression_system_vector_type: Plasmid Expression_system_plasmid: Ptrc99
symmetry	Space Group: C 1 2 1	R_factor 0.201 R_Free 0.236
crystal cell	length a length b length c angle alpha angle beta angle gamma 229.593 144.437 104.891 90.00 94.43 90.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	BCT, SO4, ZN	enzyme	Lyase E.C.4.2.1.1 BRENDA
Gene Ontology	Chain Function Process Component F, A, J, K, E, B, H, C, D, I, G, L
Primary reference	Evidence for a bicarbonate "escort" site in Haemophilus influenzae beta-carbonic anhydrase ., Rowlett RS, Hoffmann KM, Failing H, Mysliwiec MM, Samardzic D, Biochemistry. 2010 May 4;49(17):3640-7. PMID:20359198

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (418 Kb) [Save to disk] Biological Unit Coordinates (3e3i.pdb1.gz) 140 Kb Biological Unit Coordinates (3e3i.pdb2.gz) 142 Kb Biological Unit Coordinates (3e3i.pdb3.gz) 138 Kb LPC: Ligand-Protein Contacts for 3E3I CSU: Contacts of Structural Units for 3E3I Structure Factors (3420 Kb) Retrieve 3E3I in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3E3I from S2C, [Save to disk] Re-refined 3e3i structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3E3I 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 3E3I

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 3E3I, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3e3i_C] [3e3i_A] [3e3i_B] [3e3i_D] [3e3i] [3e3i_K] [3e3i_E] [3e3i_H] [3e3i_L] [3e3i_G] [3e3i_J] [3e3i_F] [3e3i_I] SWISS-PROT database: [P45148] Domain organization of [CAN_HAEIN] by SWISSPFAM Domain found in 3E3I: [Pro_CA ] by SMART

Other resources with information on 3E3I

Community annotation for 3E3I at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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