| Literature DB >> 3542565 |
M I Khamis, J R Casas-Finet, A H Maki, J B Murphy, J W Chase.
Abstract
Fluorescence and optical detection of triplet state magnetic resonance spectroscopy have been employed to study the complexes formed by single-stranded polynucleotides with both E. coli single-stranded DNA-binding protein and an E. coli ssb gene product in which Trp-54 is replaced by phenylalanine using site specific oligonucleotide mutagenesis. Our results strongly suggest the involvement of Trp-54 in stabilizing the protein-nucleic acid complexes via stacking interactions of the aromatic residue with the nucleotide bases.Entities:
Mesh:
Substances:
Year: 1987 PMID: 3542565 DOI: 10.1016/0014-5793(87)81427-8
Source DB: PubMed Journal: FEBS Lett ISSN: 0014-5793 Impact factor: 4.124