Title : Vitellogenin and lipovitellin: zinc proteins of Xenopus laevis oocytes.

Pub. Date : 1995 Aug 29

PMID : 7662665






4 Functional Relationships(s)
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1 Xenopus laevis vitellogenin is a plasma protein that contains a total of 5 mol of metal/440 kDa dimer, 2 mol of zinc, and 3 mol of calcium (Montorzi et al. Calcium a1-a Xenopus laevis
2 We here show by metal analysis of the individual proteins generated by vitellogenin processing that zinc and calcium occur in different domains of the vitellogenin polypeptide chain. Calcium a1-a Xenopus laevis
3 We here show by metal analysis of the individual proteins generated by vitellogenin processing that zinc and calcium occur in different domains of the vitellogenin polypeptide chain. Calcium a1-a Xenopus laevis
4 Calcium, in contrast, is detected exclusively in phosvitin which, in addition, contains 3 mol of magnesium/35 kDa, apparently acquired following vitellogenin entry into the oocyte. Calcium a1-a Xenopus laevis