1SC7	Human DNA Topoisomerase I (70 Kda) In Complex With The Indenoisoquinoline MJ-II-38 and Covalent Complex With A 22 Base Pair DNA Duplex	date
authors	Staker, B.L., Feese, M.D., Cushman, M., Pommier, Y., Zembower, D., Stewart, L., Burgin, A.B.
compound		source
symmetry		R_factor R_Free 0.285
crystal cell	length a length b length c angle alpha angle beta angle gamma
method	X-Ray Diffraction	resolution	3.00
ligand	M38, PG4, PTR, TGP	enzyme
related structures	by homologous chain: 1A36, 1SEU
Gene Ontology	Chain Function Process Component A
Primary reference	Structures of three classes of anticancer agents bound to the human topoisomerase I-DNA covalent complex., Staker BL, Feese MD, Cushman M, Pommier Y, Zembower D, Stewart L, Burgin AB, J Med Chem 2005 Apr 7;48(7):2336-45. PMID:15801827

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (120 Kb) [Save to disk] Biological Unit Coordinates (1sc7.pdb1.gz) 114 Kb LPC: Ligand-Protein Contacts for 1SC7 CSU: Contacts of Structural Units for 1SC7 Likely Quarternary Molecular Structure file(s) for 1SC7 Retrieve 1SC7 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1SC7 from S2C, [Save to disk]

View 1SC7 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 1SC7

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 1SC7, from MSDmotif at EBI Fold representative 1sc7 from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1sc7_B] [1sc7_A] [1sc7_C] [1sc7] [1sc7_D] SWISS-PROT database: [P11387] Domain organization of [TOP1_HUMAN] by SWISSPFAM Domain found in 1SC7: [TOPEUc ] by SMART

Other resources with information on 1SC7

Community annotation for 1SC7 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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