1XQG	Antitumor Protein	date	Oct 12, 2004
title	3.10 A Crystal Structure Of Maspin, Space Group P 4 21 2
authors	M.Al-Ayyoubi, P.G.Gettins, K.Volz
compound		source
Molecule: Maspin Chain: A, B Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Serpinb5, Pi5 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_plasmid: Pqe30
symmetry	Space Group: P 4 21 2	R_factor 0.194 R_Free 0.252
crystal cell	length a length b length c angle alpha angle beta angle gamma 147.462 147.462 118.038 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.10 Å
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structure of human maspin, a serpin with antitumor properties: reactive center loop of maspin is exposed but constrained., Al-Ayyoubi M, Gettins PG, Volz K, J Biol Chem 2004 Dec 31;279(53):55540-4. Epub 2004 Oct 22. PMID:15501821

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (127 Kb) [Save to disk] Biological Unit Coordinates (1xqg.pdb1.gz) 62 Kb Biological Unit Coordinates (1xqg.pdb2.gz) 62 Kb CSU: Contacts of Structural Units for 1XQG Likely Quarternary Molecular Structure file(s) for 1XQG Structure Factors (327 Kb) Retrieve 1XQG in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1XQG from S2C, [Save to disk] Re-refined 1xqg structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1XQG 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 1XQG

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 1XQG, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1xqga_, region A [Jmol] [rasmolscript] [script source]     - Domain d1xqgb_, region B [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1xqg_A] [1xqg] [1xqg_B] SWISS-PROT database: [P36952] Domain organization of [SPB5_HUMAN] by SWISSPFAM Domain found in 1XQG: [SERPIN ] by SMART

Other resources with information on 1XQG

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

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Images from IMB Jena Image Library of Biological Macromolecules.

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