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The predicted amino acid sequence of the SAP - 1 cDNA showed that mature SAP - 1 consisted of 1093 amino acids and a transmembrane - type PTP , which possessed a single PTP - conserved domain in the cytoplasmic region .
 SAP - 1 cDNA, mature SAP - 1, transmembrane - type PTP, PTP - conserved domain
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 SAP - 1 cDNA, mature SAP - 1, transmembrane - type PTP, PTP - conserved domain