1SY2	Transport Protein	date	Mar 31, 2004
title	1.0 A Crystal Structure Of D129al130a Mutant Of Nitrophorin
authors	E.M.Maes, A.Weichsel, J.F.Andersen, D.Shepley, W.R.Montfort
compound		source
Molecule: Nitrophorin 4 Chain: A Synonym: Np4 Engineered: Yes Mutation: Yes		Organism_scientific: Rhodnius Prolixus Organism_taxid: 13249 Organ: Salivary Gland Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21de3 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet17b
symmetry	Space Group: C 1 2 1	R_factor 0.156 R_Free 0.170
crystal cell	length a length b length c angle alpha angle beta angle gamma 70.149 42.804 52.881 90.00 93.93 90.00
method	X-Ray Diffraction	resolution	1.00 Å
ligand	HEM, NH4	enzyme
related structures	by homologous chain: 1SY3, 1X8O
Gene Ontology	Chain Function Process Component A
Primary reference	Role of binding site loops in controlling nitric oxide release: structure and kinetics of mutant forms of nitrophorin 4., Maes EM, Weichsel A, Andersen JF, Shepley D, Montfort WR, Biochemistry 2004 Jun 1;43(21):6679-90. PMID:15157102

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (73 Kb) [Save to disk] Biological Unit Coordinates (1sy2.pdb1.gz) 68 Kb LPC: Ligand-Protein Contacts for 1SY2 CSU: Contacts of Structural Units for 1SY2 Likely Quarternary Molecular Structure file(s) for 1SY2 Structure Factors (693 Kb) Retrieve 1SY2 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1SY2 from S2C, [Save to disk] Re-refined 1sy2 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1SY2 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 1SY2

Ramachandran plot from PDBSum

Structure-derived information

Conformational Epitope Prediction for 1SY2 from the CEP Server. Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1SY2, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1sy2a_, region A [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: [1sy2_A] [1sy2] SWISS-PROT database: [Q94734] Domain organization of [NP4_RHOPR] by SWISSPFAM

Other resources with information on 1SY2

Community annotation for 1SY2 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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