3G7W	Sugar Binding Protein, Hormone	date	Feb 11, 2009
title	Islet Amyloid Polypeptide (Iapp Or Amylin) Residues 1 To 22 Maltose Binding Protein
authors	J.J.W.Wiltzius, M.R.Sawaya, D.Eisenberg
compound		source
Molecule: Maltose-Binding Periplasmic Protein, Islet Amyloi Polypeptide Fusion Protein; Chain: A Synonym: Mmbp, Maltodextrin-Binding Protein, Amylin, Diabet Associated Peptide, Dap, Insulinoma Amyloid Peptide; Engineered: Yes		Organism_scientific: Escherichia Coli, Homo Sapiens Organism_taxid: 83333, 9606 Gene: Male, B4034, Jw3994, Iapp Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pmal-A1
symmetry	Space Group: P 41 21 2	R_factor 0.170 R_Free 0.194
crystal cell	length a length b length c angle alpha angle beta angle gamma 84.495 84.495 144.292 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.75 Å
ligand	GLC, GOL, SO4	enzyme
Gene Ontology	Chain Function Process Component A carbohydrate transmembrane t...
Primary reference	Atomic structures of IAPP (amylin) fusions suggest a mechanism for fibrillation and the role of insulin in the process., Wiltzius JJ, Sievers SA, Sawaya MR, Eisenberg D, Protein Sci. 2009 Apr 29. PMID:19475663

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (76 Kb) [Save to disk] Biological Unit Coordinates (3g7w.pdb1.gz) 70 Kb Biological Unit Coordinates (3g7w.pdb2.gz) 139 Kb LPC: Ligand-Protein Contacts for 3G7W CSU: Contacts of Structural Units for 3G7W Likely Quarternary Molecular Structure file(s) for 3G7W Structure Factors (800 Kb) Retrieve 3G7W in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3G7W from S2C, [Save to disk] Re-refined 3g7w structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3G7W 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 3G7W

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 3G7W, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3g7w] [3g7w_A] SWISS-PROT database: [P10997] [P0AEX9] Belongs to the atp-binding cassette (abc) superfamily according to TCDB. Domain organization of [IAPP_HUMAN] [MALE_ECOLI] by SWISSPFAM

Other resources with information on 3G7W

Community annotation for 3G7W at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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