1S77	Transferase	date	Jan 29, 2004
title	T7 Rnap Product Pyrophosphate Elongation Complex
authors	Y.W.Yin, T.A.Steitz
compound		source
Molecule: Dna (5'- D(Gpcpcpgptpgpcpgpcpaptptpcpgpcpcpgptpgp 3'); Chain: T Engineered: Yes		Synthetic: Yes Other_details: Dna Oligomer Is Synthesized
Molecule: Dna (5'- D(Tptptpapcpgptptpgpcpgpcpapcpgpgpc)-3'); Chain: N Engineered: Yes		Synthetic: Yes Other_details: Dna Oligomer Is Synthesized
Molecule: Rna (5'-R(Apcpapcpgpgpcpgpap(3da))-3') Chain: R Engineered: Yes		Synthetic: Yes Other_details: Rna Oligomer Is Synthesized
Molecule: Dna-Directed Rna Polymerase Chain: D Ec: 2.7.7.6 Engineered: Yes		Organism_scientific: Enterobacteria Phage T7 Organism_taxid: 10760 Gene: 1 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: C 2 2 21	R_factor 0.251 R_Free 0.285
crystal cell	length a length b length c angle alpha angle beta angle gamma 127.738 141.843 142.856 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.69 Å
ligand	3DA, MG, POP	enzyme	Transferase E.C.2.7.7.6 BRENDA
related structures	by homologous chain: 1ARO, 1CEZ
Gene Ontology	Chain Function Process Component D
Primary reference	The structural mechanism of translocation and helicase activity in t7 RNA polymerase., Yin YW, Steitz TA, Cell 2004 Feb 6;116(3):393-404. PMID:15016374

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (156 Kb) [Save to disk] Biological Unit Coordinates (1s77.pdb1.gz) 150 Kb LPC: Ligand-Protein Contacts for 1S77 CSU: Contacts of Structural Units for 1S77 Likely Quarternary Molecular Structure file(s) for 1S77 Structure Factors (313 Kb) Retrieve 1S77 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1S77 from S2C, [Save to disk] Re-refined 1s77 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1S77 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 1S77

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1S77, from MSDmotif at EBI Structure summary from SCOR (Structural Classification of RNA) Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1s77d_, region D [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1s77_T] [1s77_R] [1s77_N] [1s77] [1s77_D] SWISS-PROT database: [P00573] Domain organization of [RPOL_BPT7] by SWISSPFAM Domain found in 1S77: [RPOL_N ] by SMART

Other resources with information on 1S77

Community annotation for 1S77 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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