"Polypyrimidine Tract-Binding Protein"@en . "PTB Protein"@en . "PTB Splicing Factor"@en . "p57 Cytoplasmic RNA-Binding Protein"@en . . "C0137872" . . "Polypyrimidine Tract-Binding Protein"@en . . "D038941" . . "pPTB"@en . .