scholarly journals Drosophila dec-1 Eggshell Proteins Are Differentially Distributed via a Multistep Extracellular Processing and Localization Pathway

2000 ◽  
Vol 225 (2) ◽  
pp. 459-470 ◽  
Author(s):  
M.Isabel Noguerón ◽  
Debra Mauzy-Melitz ◽  
Gail L Waring
Keyword(s):  
Eggshell Proteins

scholarly journals Small gene family encoding an eggshell (chorion) protein of the human parasite Schistosoma mansoni.

1988 ◽  
Vol 8 (8) ◽  
pp. 3008-3016 ◽  
Author(s):  
L A Bobek ◽  
D M Rekosh ◽  
P T LoVerde
Keyword(s):  
Schistosoma Mansoni ◽  
Dna Sequences ◽  
Genomic Library ◽  
Regulatory Element ◽  
Gene Promoter ◽  
Transcription Unit ◽  
Human Parasite ◽  
Intergenic Dna ◽  
Eggshell Proteins ◽  
Silkmoth Chorion

We have isolated six independent genomic clones encoding schistosome chorion or eggshell proteins from a Schistosoma mansoni genomic library. A linkage may of five of the clones spanning 35 kilobase pair (kbp) of the S. mansoni genome was constructed. The region contained two eggshell protein genes closely linked, separated by 7.5 kbp of intergenic DNA. The two genes of the cluster were arranged in the same orientation, that is, they were transcribed from the same strand. The sixth clone probably represents a third copy of the eggshell gene that is not contained within the 35-kbp region. The 5' end of the mRNA transcribed from these genes was defined by primer extension directly off the RNA. The ATCAT cap site sequence was homologous to a silkmoth chorion PuTCATT cap site sequence, where Pu indicates any purine. DNA sequence analysis showed that there were no introns in these genes. The DNA sequences of the three genes were very homologous to each other and to a cDNA clone, pSMf61-46, differing only in three or four nucleotides. A multiple TATA box was located at positions -23 to -31, and a CAAAT sequence was located at -52 upstream of the eggshell transcription unit. Comparison of sequences in regions further upstream with silkmoth and Drosophila sequences revealed several very short elements that were shared. One such element, TCACGT, recently shown to be an essential cis-regulatory element for silkmoth chorion gene promoter function, was found at a similar position in all three organisms.

A comparative study of eggshell proteins in lepidoptera

1972 ◽  
Vol 1 (1) ◽  
pp. 60-65 ◽  
Author(s):  
Miles Paul ◽  
Fotis C. Kafatos ◽  
Jerome C. Regier
Keyword(s):  
Comparative Study ◽  
Eggshell Proteins

scholarly journals Gene expression profiling to identify eggshell proteins involved in physical defense of the chicken egg

BMC Genomics ◽  
2010 ◽  
Vol 11 (1) ◽  
pp. 57 ◽  
Author(s):  
Vincent Jonchère ◽  
Sophie Réhault-Godbert ◽  
Christelle Hennequet-Antier ◽  
Cédric Cabau ◽  
Vonick Sibut ◽  
...  
Keyword(s):  
Gene Expression ◽  
Gene Expression Profiling ◽  
Expression Profiling ◽  
Chicken Egg ◽  
Physical Defense ◽  
Eggshell Proteins

The gene family encoding eggshell proteins of Schistosoma japonicum

1990 ◽  
Vol 42 (1) ◽  
pp. 69-82 ◽  
Author(s):  
Kimberly J. Henkle ◽  
George A. Cook ◽  
Lewis A. Foster ◽  
David M. Engman ◽  
Libuse A. Bobek ◽  
...  
Keyword(s):  
Gene Family ◽  
Schistosoma Japonicum ◽  
Eggshell Proteins

Comparative study of the eggshell of the fruit flies Dacus oleae and Ceratitis capitata (Diptera: Trypetidae)

1985 ◽  
Vol 63 (9) ◽  
pp. 2194-2206 ◽  
Author(s):  
Lukas H. Margaritis
Keyword(s):  
Biochemical Analysis ◽  
Ceratitis Capitata ◽  
Light And Electron Microscopy ◽  
Fruit Fly ◽  
Fruit Flies ◽  
Olive Fruit Fly ◽  
Dacus Oleae ◽  
Structural Functions ◽  
Micropylar Canal ◽  
Eggshell Proteins

The eggshell of two fruit flies of economic importance has been studied by means of light and electron microscopy. The eggshell of the olive fruit fly, Dacus oleae, contains compact endochorion, whereas that of the Mediterranean fruit fly, Ceratitis capitata, exhibits a holey endochorionic layer. The eggshells of both species have an innermost chorionic layer which appears to be crystalline in substructure. The anterior pole in each case contains the micropylar canal but in addition it bears an elaborate "cup" in Dacus oleae. Both species exhibit peroxidase activity in most eggshell layers and, as in the case of Drosophila melanogaster, it is thought that the enzyme causes covalent cross-linking of the eggshell proteins producing a resilin-type configuration with rubberlike properties. The above features are related to specific structural functions of the eggshell during fertilization, oviposition, and respiration of the embryo. Biochemical analysis has revealed that the two species have very few eggshell proteins that are similar in molecular weight.

Fish Zona radiata (eggshell) proteins: evaluation and validation as a biomarker for xenoestrogen monitoring

2000 ◽  
Vol 50 (1-5) ◽  
pp. 195-196
Author(s):  
A. Arukwe ◽  
R. Male ◽  
L. Johnson ◽  
K. Peck-Miller ◽  
T. Collier ◽  
...  
Keyword(s):  
Zona Radiata ◽  
Eggshell Proteins

scholarly journals Transfer of Dorsoventral and Terminal Information from the Ovary to the Embryo by a Common Group of Eggshell Proteins in Drosophila

Genetics ◽  
2017 ◽  
Vol 205 (4) ◽  
pp. 1529-1536 ◽  
Author(s):  
Alessandro Mineo ◽  
Marc Furriols ◽  
Jordi Casanova
Keyword(s):  
Common Group ◽  
Eggshell Proteins

scholarly journals Roles of Estrogens in the Healthy and Diseased Oviparous Vertebrate Liver

Metabolites ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 502
Author(s):  
Blandine Tramunt ◽  
Alexandra Montagner ◽  
Nguan Soon Tan ◽  
Pierre Gourdy ◽  
Hervé Rémignon ◽  
...  
Keyword(s):  
Liver Diseases ◽  
High Plasma ◽  
Sexually Dimorphic ◽  
Sex Dimorphism ◽  
Yolk Proteins ◽  
Multiple Functions ◽  
Phenotypic Differences ◽  
Males And Females ◽  
Eggshell Proteins ◽  
Vitellogenin Genes

The liver is a vital organ that sustains multiple functions beneficial for the whole organism. It is sexually dimorphic, presenting sex-biased gene expression with implications for the phenotypic differences between males and females. Estrogens are involved in this sex dimorphism and their actions in the liver of several reptiles, fishes, amphibians, and birds are discussed. The liver participates in reproduction by producing vitellogenins (yolk proteins) and eggshell proteins under the control of estrogens that act via two types of receptors active either mainly in the cell nucleus (ESR) or the cell membrane (GPER1). Estrogens also control hepatic lipid and lipoprotein metabolisms, with a triglyceride carrier role for VLDL from the liver to the ovaries during oogenesis. Moreover, the activation of the vitellogenin genes is used as a robust biomarker for exposure to xenoestrogens. In the context of liver diseases, high plasma estrogen levels are observed in fatty liver hemorrhagic syndrome (FLHS) in chicken implicating estrogens in the disease progression. Fishes are also used to investigate liver diseases, including models generated by mutation and transgenesis. In conclusion, studies on the roles of estrogens in the non-mammalian oviparous vertebrate liver have contributed enormously to unveil hormone-dependent physiological and physiopathological processes.

Differential expression of Paragonimus westermani eggshell proteins during the developmental stages

2007 ◽  
Vol 37 (3-4) ◽  
pp. 295-305 ◽  
Author(s):  
Young-An Bae ◽  
Seon-Hee Kim ◽  
Guo-Bin Cai ◽  
Eung-Goo Lee ◽  
Tong-Soo Kim ◽  
...  
Keyword(s):  
Differential Expression ◽  
Developmental Stages ◽  
Paragonimus Westermani ◽  
Eggshell Proteins
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