TY - JOUR
T1 - A single domain of human prostatic acid phosphatase shows antibody-mediated restoration of catalytic activity
AU - Choe, B. K.
AU - Dong, M. K.
AU - Walz, D.
AU - Gleason, S.
AU - Rose, N. R.
PY - 1982
Y1 - 1982
N2 - By limited proteolysis with mouse submaxillaris protease, human prostatic acid phosphatase (EC 3.1.3.2) was cleaved into three fragments, Sp1, Sp2, and Sp3, which individually had no enzymatic activity. One of the fragments, Sp3, regained enzymatic activity after interaction with rabbit antibody to prostatic acid phosphatase. The Sp3 fragment was purified and characterized as to its molecular weight, amino acid composition, and carbohydrate content. The Sp3 fragment behaved like the parent molecule in L(+)-tartrate affinity and in trapping of a phosphoryl intermediate. The same Sp3 fragment also bears the most prominent antigenic determinants. This evidence suggests that Sp3 is the enzymatically active domain of prostatic acid phosphatase.
AB - By limited proteolysis with mouse submaxillaris protease, human prostatic acid phosphatase (EC 3.1.3.2) was cleaved into three fragments, Sp1, Sp2, and Sp3, which individually had no enzymatic activity. One of the fragments, Sp3, regained enzymatic activity after interaction with rabbit antibody to prostatic acid phosphatase. The Sp3 fragment was purified and characterized as to its molecular weight, amino acid composition, and carbohydrate content. The Sp3 fragment behaved like the parent molecule in L(+)-tartrate affinity and in trapping of a phosphoryl intermediate. The same Sp3 fragment also bears the most prominent antigenic determinants. This evidence suggests that Sp3 is the enzymatically active domain of prostatic acid phosphatase.
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U2 - 10.1073/pnas.79.19.6052
DO - 10.1073/pnas.79.19.6052
M3 - Article
C2 - 6193513
AN - SCOPUS:0020404192
SN - 0027-8424
VL - 79
SP - 6052
EP - 6055
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
IS - 19 I
ER -