The apolipoprotein A-I binding protein of placenta and the SP-40,40 protein of human blood are different proteins which both bind to apolipoprotein A-I.
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Ehnholm C, Bozas SE, Tenkanen H, Kirszbaum L, Metso J, Murphy B, Walker ID
The apolipoprotein A-I binding protein of placenta and the SP-40,40 protein of human blood are different proteins which both bind to apolipoprotein A-I.
Biochim Biophys Acta. 1991 Nov 27;1086(3):255-60.
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- 1742316 [ View in PubMed]
- Abstract
A complement-associated protein SP-40,40, which is a normal constituent of human blood, binds to the main apoprotein, apoA-I, of high density lipoprotein (HDL). This protein, which is identical to apolipoprotein J, was compared to another apoA-I binding protein purified from human placenta. Immunologically the two apoA-I binding proteins are different.