2QXG	Hydrolase	date	Aug 11, 2007
title	Crystal Structure Of Human Kallikrein 7 In Complex With Ala- Chloromethylketone
authors	M.Debela, P.Hess, V.Magdolen, W.Bode, T.Steiner, P.Goettig
compound		source
Molecule: Kallikrein-7 Chain: A, B Synonym: Hk7, Stratum Corneum Chymotryptic Enzyme, Hscce, S Protease 6; Ec: 3.4.21.117 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Klk7, Prss6, Scce Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: M15[Prep4] Expression_system_vector_type: Plasmid
symmetry	Space Group: P 1 21 1	R_factor 0.266 R_Free 0.292
crystal cell	length a length b length c angle alpha angle beta angle gamma 66.603 42.708 84.882 90.00 108.53 90.00
method	X-Ray Diffraction	resolution	2.60 Å
ligand	K7I	enzyme	Hydrolase E.C.3.4.21.117 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	Chymotryptic specificity determinants in the 1.0 A structure of the zinc-inhibited human tissue kallikrein 7., Debela M, Hess P, Magdolen V, Schechter NM, Steiner T, Huber R, Bode W, Goettig P, Proc Natl Acad Sci U S A. 2007 Oct 9;104(41):16086-91. Epub 2007 Oct 1. PMID:17909180

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (79 Kb) [Save to disk] Biological Unit Coordinates (2qxg.pdb1.gz) 38 Kb Biological Unit Coordinates (2qxg.pdb2.gz) 38 Kb LPC: Ligand-Protein Contacts for 2QXG CSU: Contacts of Structural Units for 2QXG Likely Quarternary Molecular Structure file(s) for 2QXG Structure Factors (235 Kb) Retrieve 2QXG in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2QXG from S2C, [Save to disk] Re-refined 2qxg structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2QXG 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 2QXG

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2QXG, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2qxg_B] [2qxg] [2qxg_A] SWISS-PROT database: [P49862] Domain organization of [KLK7_HUMAN] by SWISSPFAM Domain found in 2QXG: [Tryp_SPc ] by SMART

Other resources with information on 2QXG

Community annotation for 2QXG at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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