Li, K.W.

phosphorylation isoform fraction peptide receptor androgen ser -650 phosphorylated androgen receptor 110 kda isoform result phosphosite 112 kda isoform -650 figure presence identi ser -94 pattern change r 1881 substitution hormone residue fication -94 absence protein hplc fractions 114 kda isoform alanine residue ser -515 study increase kinase transactivation phosphorylation sites activation transcriptional -515 antibody u.s.a mutant brinkmann interaction activity identi fied fraction b ar mutants ar phosphorylation phosphorylation level sds /polyacrylamide gel ar isoform pattern analysis plasmid phosphate function table society alanine domain r 1881. phosphorylation pattern progesterone receptors fluence assay ar isoforms peptide gel amount hormone receptors level isoform pattern ser -851 1881. c-terminal c 2004 buffer serine 114 kda isoforms binding