vitellogenin


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vi·tel·lo·gen·in

(vī'tel-ō-jen'in),
An egg yolk precursor protein; production is stimulated by estrogens.
[L. vitellus, egg yolk, + -gen + -in]
References in periodicals archive ?
Vitellogenin (vtg) is a precursor of egg-yolk protein, synthesized in liver of female fish under influence of endogenous estrogen (Thomas-Jones et al.
Pieces of the bacteria are then bound to vitellogenin -- a protein -- and carried via blood to the developing eggs.
Vertebrate vitellogenin gene duplication in relation to the "3R hypothesis": correlation to the pelagic egg and the oceanic radiation of teleosts.
Furthermore, previous research has also reconfirmed progesterone, as a derivative of cholesterol, possibly bound the vitellogenin at its lipid binding sites during vitellogenin transportation (Warrier et al.
Effect of androgen mediated by the estrogen receptor of fish liver: vitellogenin accumulation.
Effects of exposure to 17[alpha]-ethinylestradiol during early development on sexual differentiation and induction of vitellogenin in zebrafish (Danio rerio).
Gender-specific expression of multiple estrogen receptors, growth hormone receptors, insulin-like growth factors and vitellogenins, and effects of 17 beta-estradiol in the male tilapia (Oreochromis mossambicus).
Vitellogenins and vitellins in the bean bug, Riptortus clavatus (Hemiptera: Alydidae): purification, immunological identification, and induction by juvenile hormone.
Topics include the evolution, expression, and regulation of the gonadotropin-releasing hormone (GnRH) gene, differences in structure-function relations between mammalian and non-mammalian GnRH receptors, molecular regulation of gonadotropin gene expression in teleosts, pleiotropic effects of prolactin in teleosts, activin and its receptors in fish reproduction, gonadal steroidogenesis in teleosts, comparative aspects of regulation and function of estrogen receptors, and vitellogenesis and vitellogenin uptake into oocytes.
The monoclonal antibodies used to develop the ELISAs came from the yolk proteins vitellin and vitellogenin of the spined soldier bug, Podisus maculiventris, and the minute pirate bug, Orius insidiosus.
Collection of early fall samples from the commercial catch, followed by histological preparation and classification based on presence or absence of vitellogenin, should yield more accurate maturity information for female petrale sole than winter sampling on spawning aggregations or maturity sampling where only a visual assessment of ovary condition is made.