1RR8	Isomerase Dna	date	Dec 08, 2003
title	Structural Mechanisms Of Camptothecin Resistance By Mutation Topoisomerase I
authors	J.E.Chrencik, B.L.Staker, A.B.Burgin, L.Stewart, M.R.Redinbo
compound		source
Molecule: 5'-D(Apapapapapgpapcptptgpgpapapap Tptptpt)-3'; Chain: A Engineered: Yes		Synthetic: Yes
Molecule: 5'-D(Apapapapaptptptptptpcpcpapapg Tptptpt)-3'; Chain: B Engineered: Yes		Synthetic: Yes
Molecule: Dna Topoisomerase I Chain: C Ec: 5.99.1.2 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Top1 Expression_system: Spodoptera Frugiperda Expression_system_common: Fall Armyworm Expression_system_taxid: 7108 Expression_system_cell_line: Sf9 Expression_system_vector_type: Baculovirus Expression_system_vector: Pfactbac1
symmetry	Space Group: P 1 21 1	R_factor 0.242 R_Free 0.294
crystal cell	length a length b length c angle alpha angle beta angle gamma 57.590 115.585 75.010 90.00 96.29 90.00
method	X-Ray Diffraction	resolution	2.60 Å
ligand	PTR, TTC, TTG BindingDB	enzyme	Isomerase E.C.5.99.1.2 BRENDA
related structures	by homologous chain: 1A36, 1EJ9
Gene Ontology	Chain Function Process Component C
Primary reference	Mechanisms of camptothecin resistance by human topoisomerase I mutations., Chrencik JE, Staker BL, Burgin AB, Pourquier P, Pommier Y, Stewart L, Redinbo MR, J Mol Biol 2004 Jun 11;339(4):773-84. PMID:15165849

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (114 Kb) [Save to disk] Biological Unit Coordinates (1rr8.pdb1.gz) 108 Kb LPC: Ligand-Protein Contacts for 1RR8 CSU: Contacts of Structural Units for 1RR8 Likely Quarternary Molecular Structure file(s) for 1RR8 Retrieve 1RR8 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1RR8 from S2C, [Save to disk]

View 1RR8 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 1RR8

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1RR8, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1rr8c2, region C:201-430 [Jmol] [rasmolscript] [script source]     - Domain d1rr8c1, region C:431-608,C:708-765 [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1rr8_B] [1rr8_C] [1rr8] [1rr8_A] SWISS-PROT database: [P11387] Domain organization of [TOP1_HUMAN] by SWISSPFAM Domain found in 1RR8: [TOPEUc ] by SMART

Other resources with information on 1RR8

Community annotation for 1RR8 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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