Quantification of Ca2+/H+ antiporter VCAX1p in vacuolar membranes and its absence in roots of mung bean
2000
Ueoka-Nakanishi, H. | Maeshima, M.
Vacuolar Ca2(+)/H(+) antiporter VCAX1p, which contributes to the Ca2(+) accumulation into vacuoles, was quantified by immunochemistry. The antiporter content in vacuolar membranes was 0.14 and 1.1 micrograms mg(-1) of membrane protein for hypocotyls and epicotyls, respectively. The calculated turnover number was 120 s(-1). Roots lacked the antiporter protein and the transcript.
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