1TWX		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	NAG, TYS	enzyme
related structures	by homologous chain: 1NRS, 1TQ7
Gene Ontology	Chain Function Process Component A B
Primary reference	Crystal structure of the thrombin mutant D221A/D222K: the Asp222:Arg187 ion-pair stabilizes the fast form., Pineda AO, Zhang E, Guinto ER, Savvides SN, Tulinsky A, Di Cera E, Biophys Chem 2004 Dec 20;112(2-3):253-6. PMID:15572256

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (56 Kb) [Save to disk] Biological Unit Coordinates (1twx.pdb1.gz) 50 Kb LPC: Ligand-Protein Contacts for 1TWX CSU: Contacts of Structural Units for 1TWX Likely Quarternary Molecular Structure file(s) for 1TWX Structure Factors (141 Kb) Retrieve 1TWX in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1TWX from S2C, [Save to disk] Re-refined 1twx structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1TWX 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: [1twx] [1twx_A] [1twx_B] [1twx_C] SWISS-PROT database: [P00734] Domain found in 1TWX: [Tryp_SPc ] by SMART

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