36LL | pdb_000036ll

16mer self-complementary RNA duplex with L-U

PDB DOI: https://doi.org/10.2210/pdb36LL/pdb

Classification: RNA
Organism(s): synthetic construct
Mutation(s): No

Deposited: 2026-06-16 Released: 2026-07-01
Deposition Author(s): Essex, J., Szostak, J.W.
Funding Organization(s): Howard Hughes Medical Institute (HHMI), National Science Foundation (NSF, United States)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.35 Å
R-Value Free:
0.253 (Depositor), 0.253 (DCC)
R-Value Work:
0.239 (Depositor), 0.240 (DCC)
R-Value Observed:
0.241 (Depositor)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

This is version 1.0 of the entry. See complete history.

Literature

Effects of Chemically Activated L-Nucleotides on Nonenzymatic RNA Copying

Essex, J., Jia, X., Zhang, J., Szostak, J.W.

To be published.

Macromolecule Content

Total Structure Weight: 5.1 kDa
Atom Count: 383
Modeled Residue Count: 16
Deposited Residue Count: 16
Unique nucleic acid chains: 1

Macromolecules

Find similar nucleic acids by: Sequence

Molecule	Chains	Length	Organism
Entity ID: 1
RNA (16-mer)	A	16	synthetic construct
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.35 Å
R-Value Free: 0.253 (Depositor), 0.253 (DCC)
R-Value Work: 0.239 (Depositor), 0.240 (DCC)
R-Value Observed: 0.241 (Depositor)

Space Group: H 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.091	α = 90
b = 42.091	β = 90
c = 130.113	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
autoPROC	data reduction
autoPROC	data scaling
PHASER	phasing

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2026-07-01

Deposition Author(s):

Essex, J.

Szostak, J.W.

Funding Organization	Location	Grant Number
Howard Hughes Medical Institute (HHMI)	United States	--
National Science Foundation (NSF, United States)	United States	2325198

Revision History (Full details and data files)

Version 1.0: 2026-07-01
Type: Initial release

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.