3PSR	Ef-Hand Protein	date	Sep 17, 1998
title	Human Psoriasin (S100a7) Ca2+ Bound Form (Crystal Form I)
authors	D.E.Brodersen, J.Nyborg, M.Kjeldgaard
compound		source
Molecule: Psoriasin Chain: A, B Synonym: S100a7 Engineered: Yes Other_details: Chain A Is Ca2+ And Zn2+ Bound Form, Chain B Bound Form		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Cell: Keratinocytes Cellular_location: Cytoplasmic, Or May Be Secreted By A Non Classical Secretory Pathway; Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_plasmid: Pt7h6fx-Ps.4
symmetry	Space Group: P 21 21 21	R_factor R_Free
crystal cell	length a length b length c angle alpha angle beta angle gamma 52.150 56.670 76.380 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	CA, ZN	enzyme
related structures	by homologous chain: 2PSR
Gene Ontology	Chain Function Process Component A, B sequestering of metal ion
Primary reference	Zinc-binding site of an S100 protein revealed. Two crystal structures of Ca2+-bound human psoriasin (S100A7) in the Zn2+-loaded and Zn2+-free states., Brodersen DE, Nyborg J, Kjeldgaard M, Biochemistry 1999 Feb 9;38(6):1695-704. PMID:10026247

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (38 Kb) [Save to disk] Biological Unit Coordinates (3psr.pdb1.gz) 33 Kb LPC: Ligand-Protein Contacts for 3PSR CSU: Contacts of Structural Units for 3PSR Likely Quarternary Molecular Structure file(s) for 3PSR Structure Factors (83 Kb) Retrieve 3PSR in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3PSR from S2C, [Save to disk] Re-refined 3psr structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3PSR 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 3PSR

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 3PSR, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d3psra_, region A [Jmol] [rasmolscript] [script source]     - Domain d3psrb_, region B [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3psr_B] [3psr] [3psr_A] SWISS-PROT database: [P31151] Domain organization of [S10A7_HUMAN] by SWISSPFAM Domain found in 3PSR: [S_100 ] by SMART

Other resources with information on 3PSR

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

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