4RQF Ligase Rna date Nov 03, 2014
title Human Seryl-Trna Synthetase Dimer Complexed With One Molecul Trnasec
authors W.Xie, C.Wang, Y.Guo, Q.Tian, Q.Jia
compound source
Molecule: Selenocysteine Trna
Chain: C
Engineered: Yes
Mutation: Yes
Synthetic: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Other_details: In Vitro Synthesis

Molecule: Serine--Trna Ligase, Cytoplasmic
Chain: A, B
Synonym: Seryl-Trna Synthetase, Serrs, Seryl-Trna(Sersec) Synthetase;
Engineered: Yes
Mutation: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Sars, Sers
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21(De3)
Expression_system_vector_type: Pet
Expression_system_plasmid: Pet20b(+)
symmetry Space Group: P 21 21 2
R_factor 0.253 R_Free 0.314
length a length b length c angle alpha angle beta angle gamma
160.377 108.894 89.491 90.00 90.00 90.00
method X-Ray Diffractionresolution 3.50 Å
ligand ANP, SER enzyme Ligase E.C. BRENDA
A, B

Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (181 Kb) [Save to disk]
  • Biological Unit Coordinates (4rqf.pdb1.gz) 175 Kb
  • LPC: Ligand-Protein Contacts for 4RQF
  • CSU: Contacts of Structural Units for 4RQF
  • Structure Factors (386 Kb)
  • Retrieve 4RQF in mmCIF format [Save to disk]
  • Re-refined 4rqf structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 4RQF 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 4RQF
  • Cartoon representation from PDB Cartoon
  • 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
  • Crystal Contacts, from CryCo at Weizmann Institute
  • Fold representative 4rqf from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [4rqf_C] [4rqf] [4rqf_B] [4rqf_A]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Other resources with information on 4RQF
  • Community annotation for 4RQF at PDBWiki (http://pdbwiki.org)

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