A protein interaction surface in nonribosomal peptide synthesis mapped by combinatorial mutagenesis and selection. Lai JR, Fischbach MA, Liu DR, Walsh CT. A protein interaction surface in nonribosomal peptide synthesis mapped by combinatorial mutagenesis and selection. Proc Natl Acad Sci U S A. 2006;103(14):5314-9. doi:10.1073/pnas.0601038103 Read more