1HC9	Toxin Peptide	date	May 02, 2001
title	Alpha-Bungarotoxin Complexed With High Affinity Peptide
authors	M.Harel, R.Kasher, J.L.Sussman
compound		source
Molecule: Alpha-Bungarotoxin Isoform V31 Chain: A Synonym: Alpha-Btx V31, Alpha-Bgt(V31), Bgtx V31, Long Neur Other_details: Alpha-Neurotoxin		Organism_scientific: Bungarus Multicinctus Organism_common: Many-Banded Krait Organism_taxid: 8616 Secretion: Venom
Molecule: Alpha-Bungarotoxin Isoform A31 Chain: B Synonym: Alpha-Btx A31, Alpha-Bgt(A31), Bgtx A31, Long Neur		Organism_scientific: Bungarus Multicinctus Organism_common: Many-Banded Krait Organism_taxid: 8616 Secretion: Venom
Molecule: Peptide Inhibitor Chain: C, D Synonym: High Affinity Peptide Engineered: Yes Other_details: A Synthesized Peptide Mimicking Achr Loop Th Inhibits A-Btx Binding To Achr		Synthetic: Yes Organism_scientific: Synthetic Construct Organism_taxid: 32630 Other_details: Mimotope Of The Nicotinic Acetylcholine Rece
symmetry	Space Group: C 2 2 21	R_factor 0.202 R_Free 0.235
crystal cell	length a length b length c angle alpha angle beta angle gamma 42.042 153.356 73.263 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.80 Å
ligand	IOD	enzyme
related structures	by homologous chain: 1NTN
Gene Ontology	Chain Function Process Component A toxin activity B toxin activity
Primary reference	Lipolytic activity of Staphylococci and Micrococci., Rutecka-Bonin I, Acta Microbiol Pol B. 1975;7(1):37-43. PMID:11683996

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (38 Kb) [Save to disk] Biological Unit Coordinates (1hc9.pdb1.gz) 18 Kb Biological Unit Coordinates (1hc9.pdb2.gz) 17 Kb LPC: Ligand-Protein Contacts for 1HC9 CSU: Contacts of Structural Units for 1HC9 Likely Quarternary Molecular Structure file(s) for 1HC9 Structure Factors (165 Kb) Retrieve 1HC9 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1HC9 from S2C, [Save to disk] Re-refined 1hc9 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1HC9 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 1HC9

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 1HC9, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1hc9a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1hc9b_, 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: [1hc9_B] [1hc9] [1hc9_A] [1hc9_D] [1hc9_C] SWISS-PROT database: [P60615] [P60616] Belongs to the snake cytotoxin (sct) family according to TCDB. Domain organization of [NXL1A_BUNMU] [NXL1V_BUNMU] by SWISSPFAM

Other resources with information on 1HC9

Community annotation for 1HC9 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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