vitellin


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vi·tel·lin

(vī-tel'in),
A lipophosphoprotein combined with lecithin in the yolk of egg.

vitellin

(vi-tel'in)
A protein that can be extracted from egg yolk and contains lecithin.
See: nucleoprotein; ovovitellin
References in periodicals archive ?
Early vitellin globule oocytes were also observed (Fig.
The vitellin follicles are few in number, globular, slightly larger, and located at the anterior half of the body.
Vitellin and vitellogenin quantification: The vitellogenins quantification was made, on fat body samples collected at different ages (0, 1, 3, 5 and 7 days), in female pupae of controls and treated series.
Reduced oviposition of Boophilus microplus feeding on sheep vaccinated with vitellin. Vet Parasitol 2002; 103 (1-2): 141-56.
Nous presentons, dans cet article, le cas clinique d'un patient atteint d'une tumeur du sac vitellin du testicule au stade IIIc metastatique.
Purification of vitellin from the ovary of chinese mitten-hended crab (Eriocheir sinensis) and development of an antivitellin ELISA.
littoralis, also inhibited the synthesis of vitellogenins (i.e., proteins which are precursors of vitellin) or their transport with a consequent decrease in hatchability.
Vitellogenesis comprises the synthesis of the yolk protein precursor vitellogenin in body fat, its secretion into the hemolymph, and its transportation to the follicles, where they are selectively bound and internalized into oocytes as vitellin (Hagedorn and Kunkel, 1979).
Among their topics are the biosynthesis and processing of insect vitellogenins, the regulation of yolk protein gene expression and vitellogenesis in higher diptera, vitellogenesis directed by juvenile hormone, the accumulation of lipids in insect oocytes, the regulation of yolk protein degradation during insect enbryogenesis, and biochemical and ultrastructural aspects of vitellin utilization during embryogensis.
The vitellin glands are outside of the ceca and not over them, they begin on the anterior part of the acetabulum and nol al the testicle level.
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.