1K90	Toxin,Lyase Metal Binding Protein	date	Oct 26, 2001
title	Crystal Structure Of The Adenylyl Cyclase Domain Of Anthrax Factor (Ef) In Complex With Calmodulin And 3' Deoxy-Atp
authors	C.L.Drum, S.Z.Yan, J.Bard, Y.Q.Shen, D.Lu, S.Soelaiman, Z.Grabar A.Bohm, W.J.Tang
compound		source
Molecule: Calmodulin-Sensitive Adenylate Cyclase Chain: A, B, C Ec: 4.6.1.1 Engineered: Yes		Organism_scientific: Bacillus Anthracis Organism_taxid: 1392 Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid
Molecule: Calmodulin Chain: D, E, F Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid
symmetry	Space Group: I 2 2 2	R_factor 0.215 R_Free 0.286
crystal cell	length a length b length c angle alpha angle beta angle gamma 116.099 166.100 343.330 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.75 Å
ligand	3AT, CA, YB	enzyme	Lyase E.C.4.6.1.1 BRENDA
note	1K90 (Molecule of the Month:pdb28)
related structures	by homologous chain: 1A29, 1K8T, 1K93, 2BKI
Gene Ontology	Chain Function Process Component A, C, B F, D, E
Primary reference	Structural basis for the activation of anthrax adenylyl cyclase exotoxin by calmodulin., Drum CL, Yan SZ, Bard J, Shen YQ, Lu D, Soelaiman S, Grabarek Z, Bohm A, Tang WJ, Nature 2002 Jan 24;415(6870):396-402. PMID:11807546

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (316 Kb) [Save to disk] Biological Unit Coordinates (1k90.pdb1.gz) 308 Kb Biological Unit Coordinates (1k90.pdb2.gz) 107 Kb Biological Unit Coordinates (1k90.pdb3.gz) 109 Kb Biological Unit Coordinates (1k90.pdb4.gz) 103 Kb LPC: Ligand-Protein Contacts for 1K90 CSU: Contacts of Structural Units for 1K90 Likely Quarternary Molecular Structure file(s) for 1K90 Structure Factors (798 Kb) Retrieve 1K90 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1K90 from S2C, [Save to disk] Re-refined 1k90 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1K90 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 1K90

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1K90, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1k90a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1k90b_, region B [Jmol] [rasmolscript] [script source]     - Domain d1k90c_, region C [Jmol] [rasmolscript] [script source]     - Domain d1k90d_, region D [Jmol] [rasmolscript] [script source]     - Domain d1k90e_, region E [Jmol] [rasmolscript] [script source]     - Domain d1k90f_, region F [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: [1k90_F] [1k90_B] [1k90] [1k90_E] [1k90_D] [1k90_C] [1k90_A] SWISS-PROT database: [P62158] [P40136] Belongs to the calmodulin calcium binding protein (calmodulin) family according to TCDB. Domain organization of [CALM_HUMAN] [CYAA_BACAN] by SWISSPFAM Domain found in 1K90: [EFh ] by SMART

Other resources with information on 1K90

Community annotation for 1K90 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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