4P3E Rna Binding Protein Rna date Feb 25, 2014
title Structure Of The Human Srp S Domain
authors J.T.Grotwinkel, K.Wild, I.Sinning
compound source
Molecule: Srp Rna (124-Mer)
Chain: A
Fragment: Gb Residues 234-358
Engineered: Yes
Mutation: Yes
Synthetic: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606

Molecule: Signal Recognition Particle 19 Kda Protein
Chain: B
Fragment: Unp Residues 1-120
Synonym: Srp19
Engineered: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Srp19
Expression_system: Escherichia Coli
Expression_system_taxid: 562

Molecule: Signal Recognition Particle Subunit Srp68
Chain: C
Fragment: Unp Residues 47-254
Synonym: Srp68, Signal Recognition Particle 68 Kda Protein
Engineered: Yes
Mutation: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Srp68
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: C 1 2 1
R_factor 0.244 R_Free 0.285
length a length b length c angle alpha angle beta angle gamma
125.649 70.530 106.493 90.00 100.46 90.00
method X-Ray Diffractionresolution 3.50 Å
ligand MG enzyme


Primary referenceSRP RNA remodeling by SRP68 explains its role in protein translocation., Grotwinkel JT, Wild K, Segnitz B, Sinning I, Science. 2014 Apr 4;344(6179):101-4. doi: 10.1126/science.1249094. PMID:24700861
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (109 Kb) [Save to disk]
  • Biological Unit Coordinates (4p3e.pdb1.gz) 104 Kb
  • LPC: Ligand-Protein Contacts for 4P3E
  • CSU: Contacts of Structural Units for 4P3E
  • Structure Factors (190 Kb)
  • Retrieve 4P3E in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 4P3E from S2C, [Save to disk]
  • Re-refined 4p3e structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 4P3E 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 4P3E
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 4P3E, from MSDmotif at EBI
  • Fold representative 4p3e from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [4p3e_B] [4p3e_C] [4p3e_A] [4p3e]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Other resources with information on 4P3E
  • Community annotation for 4P3E at PDBWiki (http://pdbwiki.org)

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