Biological Assembly 1  

 3D View: Structure | Ligand Interaction

Standalone Viewers  
Protein Workshop | Ligand Explorer

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

 3D View: Structure | Ligand Interaction

Standalone Viewers  
Protein Workshop | Ligand Explorer

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 52541.23 
• Atom Count: 3482 
• Residue Count: 250 
• Unique protein chains: 1
• Unique nucleic acid chains: 1

1QA6

CRYSTAL STRUCTURE OF A CONSERVED RIBOSOMAL PROTEIN-RNA COMPLEX

• DOI: 10.2210/pdb1QA6/pdb
• NDB: PR0015

• Classification: RIBOSOME
• Organism(s): Geobacillus stearothermophilus
• Expression System: Escherichia coli BL21(DE3)


• Deposited: 1999-04-15 Released: 1999-05-25 
• Deposition Author(s): Conn, G.L., Draper, D.E., Lattman, E.E., Gittis, A.G.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.8 Å
• R-Value Free: 0.321 
• R-Value Work: 0.240 

Literature

Crystal structure of a conserved ribosomal protein-RNA complex.

Conn, G.L., Draper, D.E., Lattman, E.E., Gittis, A.G.

(1999) Science 284: 1171-1174

• PubMed: 10325228 
• Also Cited By: 1OLN, 1HC8


• PubMed Abstract: 
  

The structure of a highly conserved complex between a 58-nucleotide domain of large subunit ribosomal RNA and the RNA-binding domain of ribosomal protein L11 has been solved at 2.8 angstrom resolution. It reveals a precisely folded RNA structure that is stabilized by extensive tertiary contacts and contains an unusually large core of stacked bases. A bulge loop base from one hairpin of the RNA is intercalated into the distorted major groove of another helix; the protein locks this tertiary interaction into place by binding to the intercalated base from the minor groove side. This direct interaction with a key ribosomal RNA tertiary interaction suggests that part of the role of L11 is to stabilize an unusual RNA fold within the ribosome.

---

Organizational Affiliation: 

Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
RIBOSOMAL PROTEIN L11	A, B	67	Geobacillus stearothermophilus	Mutation(s): 0  Gene Names: rplK
Find proteins for P56210 (Geobacillus stearothermophilus) Go to UniProtKB:  P56210

Entity ID: 1
Molecule	Chains	Length	Organism
58 NUCLEOTIDE RIBOSOMAL RNA DOMAIN	C,D	58	N/A

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
MG	C, D	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N
OS	C, D	OSMIUM ION Os XQBKHDFIPARBOX-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.8 Å
• R-Value Free: 0.321 
• R-Value Work: 0.240 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length (Å)	Angle (°)
a = 150.675	α = 90.00
b = 150.675	β = 90.00
c = 63.841	γ = 90.00

Software Package:

Software Name	Purpose
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
MLPHARE	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1999-04-15 
• Released Date: 1999-05-25 
• Deposition Author(s): Conn, G.L., Draper, D.E., Lattman, E.E., Gittis, A.G.

Revision History 

• Version 1.0: 1999-05-25
  Type: Initial release
• Version 1.1: 2008-04-27
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance