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
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
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 Diffractionresolution 2.60 Å
ligand PTR, TTC, TTG BindingDB enzyme Isomerase E.C. BRENDA
related structures by homologous chain: 1A36, 1EJ9

Primary referenceMechanisms 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] (117 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
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo 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]
  • Fold representative 1rr8 from FSSP and Dali (Families of Structurally Similar Proteins)
  • 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)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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