JBScreen Nuc-Pro is designed to screen for preliminary crystallization conditions of nucleic acids and protein-nucleic acid complexes. The highly effective sparse matrix screen is based upon extensive screening of the PDB [1], with focus on entries by structural genomic initiatives, the BMCD [2] and other protocols [3-5]. Reported crystallization conditions for various RNAs, DNAs as well as protein-nucleic acid complexes were compiled and analyzed for rate of recurrence. The 96 conditions selected cover a variety of polymers, mono- and divalent metal ions, organics, alcohols and buffers of a pH range from 4.0 to 8.5. The organization of the reagents into individual kits is based upon the main precipitant, i.e. various molecular weight PEGs, Salts, alcohols (MPD and 2-Propanol). JBScreen Nuc-Pro is available as 4 individual kits containing 24 reagents each in 10 ml bulk format or in a pre-filled 96 deep well block. The ready-to-use reagents are tested for DNase contamination using our DNase Detection Kit.

Individual Conditions of all screens are available in 10 ml as well as 100 ml volumes. Please follow this link.

Description how the JBScreen buffers are prepared

References and Recommended Reading:
[1] Berman et al. (2000) The Protein Data Bank. Nucleic Acids Research 28:235.
[2] Gilliland et al. (1994) The Biological Macromolecule Crystallization Database, Version 3.0: New Features, Data, and the NASA Archive for Protein Crystal Growth Data. Acta Cryst. D50:408.
[3] Doudna et al. (1993) Crystallization of ribozymes and small RNA motifs by a sparse matrix approach. Proc. Natl. Sci. USA 90:7829.
[4] Scott et al. (1995) Rapid Crystallization of Chemically Synthesized Hammerhead RNAs using a Double Screening Procedure. J. Mol. Biol. 250:327.
[5] Ke et al. (2004) Crystallization of RNA and RNA-protein complexes. Methods 34:408.