1XXD	Blood Clotting Hydrolase Inhibitor	date	Nov 04, 2004
title	Crystal Structure Of The Fxia Catalytic Domain In Complex Wi Ecotin
authors	L.Jin, P.Pandey, R.E.Babine, J.C.Gorga, K.J.Seidl, E.Gelfand, D.T. S.S.Abdel-Meguid, J.E.Strickler
compound		source
Molecule: Coagulation Factor Xi Chain: A, B Fragment: Catalytic Domain Synonym: Plasma Thromboplastin Antecedent; Pta; Fxi Ec: 3.4.21.27 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: F11 Expression_system: Pichia Pastoris Expression_system_taxid: 4922
Molecule: Ecotin Chain: C, D Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Eco,Eti Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid
symmetry	Space Group: P 21 21 21	R_factor 0.230 R_Free 0.282
crystal cell	length a length b length c angle alpha angle beta angle gamma 45.448 91.418 188.559 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.91 Å
ligand		enzyme	Hydrolase E.C.3.4.21.27 BRENDA
related structures	by homologous chain: 1P0S, 1XXF
Gene Ontology	Chain Function Process Component A, B D, C serine-type endopeptidase in...
Primary reference	Crystal structures of the FXIa catalytic domain in complex with ecotin mutants reveal substrate-like interactions., Jin L, Pandey P, Babine RE, Gorga JC, Seidl KJ, Gelfand E, Weaver DT, Abdel-Meguid SS, Strickler JE, J Biol Chem 2005 Feb 11;280(6):4704-12. Epub 2004 Nov 15. PMID:15545266

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (125 Kb) [Save to disk] Biological Unit Coordinates (1xxd.pdb1.gz) 120 Kb CSU: Contacts of Structural Units for 1XXD Likely Quarternary Molecular Structure file(s) for 1XXD Structure Factors (154 Kb) Retrieve 1XXD in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1XXD from S2C, [Save to disk] Re-refined 1xxd structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1XXD in 3D

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Visual 3D analysis of 1XXD

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 1XXD, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1xxda_, region A [Jmol] [rasmolscript] [script source]     - Domain d1xxdb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1xxdc_, region C [Jmol] [rasmolscript] [script source]     - Domain d1xxdd_, region D [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1xxd_A] [1xxd_B] [1xxd_D] [1xxd_C] [1xxd] SWISS-PROT database: [P23827] [P03951] Domain organization of [ECOT_ECOLI] [FA11_HUMAN] by SWISSPFAM Domain found in 1XXD: [Tryp_SPc ] by SMART

Other resources with information on 1XXD

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

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