1A31		date
authors
compound		source
symmetry		R_factor R_Free
crystal cell	length a length b length c angle alpha angle beta angle gamma
method	X-Ray Diffraction	resolution
ligand	5IU, PTR	enzyme
note	1A31 (Molecule of the Month:pdb73)
related structures	by homologous chain: 1K4T, 1RRJ
Gene Ontology	Chain Function Process Component A
Primary reference	Crystal structures of human topoisomerase I in covalent and noncovalent complexes with DNA., Redinbo MR, Stewart L, Kuhn P, Champoux JJ, Hol WG, Science 1998 Mar 6;279(5356):1504-13. PMID:9488644

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (106 Kb) [Save to disk] Biological Unit Coordinates (1a31.pdb1.gz) 99 Kb LPC: Ligand-Protein Contacts for 1A31 CSU: Contacts of Structural Units for 1A31 Likely Quarternary Molecular Structure file(s) for 1A31 Retrieve 1A31 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1A31 from S2C, [Save to disk]

View 1A31 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.

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1a31] [1a31_A] [1a31_C] [1a31_D] SWISS-PROT database: [P11387] Domain found in 1A31: [TOPEUc ] by SMART

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