NNDB

NNDB provides curated nearest-neighbor thermodynamic parameter sets and descriptive rules for predicting nucleic acid secondary structure stabilities, supporting calculations of RNA folding free energy and enthalpy.


Key Features:

  • Parameter Sets: Comprehensive nearest-neighbor thermodynamic parameter sets for nucleic acid secondary structure stability prediction.
  • Descriptive Rules and Texts: Detailed rules and explanatory text that define how parameters apply to specific secondary-structure motifs.
  • Sequence-Dependent Parameters: Sequence-dependent parameter tables provided in plain text and HTML formats.
  • Literature References: References to the experimental literature that support and document each parameter set.

Scientific Applications:

  • RNA Folding Thermodynamics: Calculation of RNA folding free energy and enthalpy changes using nearest-neighbor parameters.
  • RNA Secondary Structure Prediction: Parameter-based modeling of RNA secondary structures to inform structure–function analyses.
  • Parameter Validation and Traceability: Tracing the empirical basis of parameter values to primary experimental literature for reproducibility and validation.

Methodology:

Collection and organization of experimentally derived nearest-neighbor parameters with structured presentation of descriptive rules and sequence-dependent parameter tables in text and HTML formats.

Topics

Details

Tool Type:
web application
Operating Systems:
Linux, Windows, Mac
Added:
3/27/2017
Last Updated:
11/25/2024

Operations

Data Inputs & Outputs

Nucleic acid folding analysis

Publications

Turner DH, Mathews DH. NNDB: the nearest neighbor parameter database for predicting stability of nucleic acid secondary structure. Nucleic Acids Research. 2009;38(suppl_1):D280-D282. doi:10.1093/nar/gkp892. PMID:19880381. PMCID:PMC2808915.

Documentation