1IWD	Hydrolase	date	May 02, 2002
title	Proposed Amino Acid Sequence And The 1.63 Angstrom X-Ray Cry Structure Of A Plant Cysteine Protease Ervatamin B: Insight Structural Basis Of Its Stability And Substrate Specificity
authors	C.Chakrabarti, S.Biswas, J.K.Dattagupta
compound		source
Molecule: Ervatamin B Chain: A		Organism_scientific: Tabernaemontana Divaricata Organism_taxid: 52861
symmetry	Space Group: P 21 21 21	R_factor 0.161 R_Free 0.184
crystal cell	length a length b length c angle alpha angle beta angle gamma 48.200 58.760 69.350 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.63 Å
ligand	THJ	enzyme
related structures	by homologous chain: 1O0E
Gene Ontology	Chain Function Process Component A
Primary reference	Proposed amino acid sequence and the 1.63 A X-ray crystal structure of a plant cysteine protease, ervatamin B: some insights into the structural basis of its stability and substrate specificity., Biswas S, Chakrabarti C, Kundu S, Jagannadham MV, Dattagupta JK, Proteins 2003 Jun 1;51(4):489-97. PMID:12784208

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (41 Kb) [Save to disk] Biological Unit Coordinates (1iwd.pdb1.gz) 37 Kb LPC: Ligand-Protein Contacts for 1IWD CSU: Contacts of Structural Units for 1IWD Likely Quarternary Molecular Structure file(s) for 1IWD Structure Factors (289 Kb) Retrieve 1IWD in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1IWD from S2C, [Save to disk] Re-refined 1iwd structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1IWD 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 1IWD

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 1IWD, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1iwda_, 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: [1iwd] [1iwd_A] SWISS-PROT database: [P60994] Domain organization of [ERVB_TABDI] by SWISSPFAM Domain found in 1IWD: [Pept_C1 ] by SMART

Other resources with information on 1IWD

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

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