1TWA		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	ATP, MN, ZN	enzyme
Gene Ontology	Chain Function Process Component A RNA-directed 5'-3' RNA polym... B RNA-directed 5'-3' RNA polym... C RNA-directed 5'-3' RNA polym... E RNA-directed 5'-3' RNA polym... F RNA-directed 5'-3' RNA polym... H RNA-directed 5'-3' RNA polym... I RNA-directed 5'-3' RNA polym... J RNA-directed 5'-3' RNA polym... DNA-directed RNA polymerase ... K RNA-directed 5'-3' RNA polym... L RNA-directed 5'-3' RNA polym...
Primary reference	Structural basis of transcription: nucleotide selection by rotation in the RNA polymerase II active center., Westover KD, Bushnell DA, Kornberg RD, Cell 2004 Nov 12;119(4):481-9. PMID:15537538

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (567 Kb) [Save to disk] Biological Unit Coordinates (1twa.pdb1.gz) 555 Kb LPC: Ligand-Protein Contacts for 1TWA CSU: Contacts of Structural Units for 1TWA Likely Quarternary Molecular Structure file(s) for 1TWA Structure Factors (740 Kb) Retrieve 1TWA in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1TWA from S2C, [Save to disk] Re-refined 1twa structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1TWA 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: [1twa] [1twa_A] [1twa_B] [1twa_C] [1twa_E] [1twa_F] [1twa_H] [1twa_I] [1twa_J] [1twa_K] [1twa_L] SWISS-PROT database: [P20434] [P20435] [P20436] [P40422] [P22139] [P38902] [P04050] [P08518] [P16370] [P27999] Domains found in 1TWA: [RNA_pol_Rpb6] [RPOL8c] [RPOL9] [RPOLA_N] [RPOLCX] [RPOLD] [ZnF_C2C2 ] by SMART

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