passages.id: split_1_test_786_passage
passages.type: progene_text
passages.text: An atypical amino acid composition , a high level of negative charge , exceptional thermostability , unusual hydrodynamic properties , properties of the phosphorylation site domain , and a calculated M(r) of 38,000 suggest that DeltaDAKAP200 is a new member of the myristoylated alanine - rich C kinase substrate protein family .