High dimensional and high resolution pulse sequences for backbone resonance assignment of intrinsically disordered proteins

J Biomol NMR. 2012 Apr;52(4):329-37. doi: 10.1007/s10858-012-9613-x. Epub 2012 Feb 17.

Abstract

Four novel 5D (HACA(N)CONH, HNCOCACB, (HACA)CON(CA)CONH, (H)NCO(NCA)CONH), and one 6D ((H)NCO(N)CACONH) NMR pulse sequences are proposed. The new experiments employ non-uniform sampling that enables achieving high resolution in indirectly detected dimensions. The experiments facilitate resonance assignment of intrinsically disordered proteins. The novel pulse sequences were successfully tested using δ subunit (20 kDa) of Bacillus subtilis RNA polymerase that has an 81-amino acid disordered part containing various repetitive sequences.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bacillus subtilis / enzymology
  • DNA-Directed RNA Polymerases / chemistry
  • Nuclear Magnetic Resonance, Biomolecular / methods*
  • Proteins / chemistry*

Substances

  • Proteins
  • DNA-Directed RNA Polymerases