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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
MeSH Review

Hemicentrotus

 
 
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High impact information on Hemicentrotus

  • In this study, we demonstrate that these micromere descendants express HpTb, a T-brain homolog of Hemicentrotus pulcherrimus [1].
  • We report the isolation and structural characterization of an oligo/polysialic acid-containing glycopeptide fraction (designated ESP-Sia) prepared from the egg cell surface complex of the sea urchin, Hemicentrotus pulcherrimus, by exhaustive pronase treatment [2].
  • These elements were found in the spec2a RSR ortholog in Strongylocentrotus pallidus but not in RSR orthologs of Strongylocentrotus droebachiensis or Hemicentrotus pulcherrimus [3].
  • Jelly coat substance surrounding the egg of the sea urchin, Hemicentrotus pulcherrimus, was fractionated by gel filtration and three fractions designated A, B, and C were obtained which mainly consisted of fucose sulfate, sialic acid, and protein, respectively [4].
  • A proteoglycan fraction isolated from the EDTA extract of sea urchin (Hemicentrotus pulcherrimus) gastrulae stimulates reaggregation of dissociated embryonic cells [5].
 

Biological context of Hemicentrotus

 

Anatomical context of Hemicentrotus

  • A peak fraction (with MW greater than 10(6] of the Sepharose eluates stimulated in a concentration-dependent manner the reaggregation of cells dissociated from Hemicentrotus blastulae by EDTA treatment, the activity being detected at a concentration of as low as 5.8 micrograms protein per ml or 2.5 micrograms fucose per ml [5].
  • The subcellular distribution of DNA polymerase alpha and beta was examined in unfertilized eggs and embryos of the sea-urchin, Hemicentrotus pulcherrimus [11].
  • ATPase of 14S dynein, extracted from spermatozoa of the sea urchin, Hemicentrotus pulcherrimus, and partially purified by sucrose density gradient centrifugation, was inhibited non-competitively by palmitoyl CoA at concentrations higher than 20 microns, and was stimulated at concentrations between 2 microns and 10 microns [12].
  • ATP-hydrolysis in the microsome fraction, obtained from embryos of the sea urchin, Hemicentrotus pulcherrimus, and from micromere-derived cells in culture was stimulated by Cl- and HCO3- in the presence of ouabain and EGTA [13].
 

Associations of Hemicentrotus with chemical compounds

 

Gene context of Hemicentrotus

References

  1. T-brain homologue (HpTb) is involved in the archenteron induction signals of micromere descendant cells in the sea urchin embryo. Fuchikami, T., Mitsunaga-Nakatsubo, K., Amemiya, S., Hosomi, T., Watanabe, T., Kurokawa, D., Kataoka, M., Harada, Y., Satoh, N., Kusunoki, S., Takata, K., Shimotori, T., Yamamoto, T., Sakamoto, N., Shimada, H., Akasaka, K. Development (2002) [Pubmed]
  2. The occurrence of novel 9-O-sulfated N-glycolylneuraminic acid-capped alpha2-->5-Oglycolyl-linked oligo/polyNeu5Gc chains in sea urchin egg cell surface glycoprotein. Identification of a new chain termination signal for polysialyltransferase. Kitazume, S., Kitajima, K., Inoue, S., Haslam, S.M., Morris, H.R., Dell, A., Lennarz, W.J., Inoue, Y. J. Biol. Chem. (1996) [Pubmed]
  3. Creation of cis-regulatory elements during sea urchin evolution by co-option and optimization of a repetitive sequence adjacent to the spec2a gene. Dayal, S., Kiyama, T., Villinski, J.T., Zhang, N., Liang, S., Klein, W.H. Dev. Biol. (2004) [Pubmed]
  4. Fractionation of jelly substance of the sea urchin egg and biological activities to induce acrosome reaction and agglutination of spermatozoa. Mikami-Takei, K., Kosakai, M., Isemura, M., Suyemitsu, T., Ishihara, K., Schmid, K. Exp. Cell Res. (1991) [Pubmed]
  5. A proteoglycan fraction isolated from the EDTA extract of sea urchin (Hemicentrotus pulcherrimus) gastrulae stimulates reaggregation of dissociated embryonic cells. Akasaka, K., Terayama, H. Exp. Cell Res. (1984) [Pubmed]
  6. Sulfated glycan present in the EDTA extract of Hemicentrotus embryos (mid-gastrula). Akasaka, K., Terayama, H. Exp. Cell Res. (1983) [Pubmed]
  7. Essential role of growth factor receptor-mediated signal transduction through the mitogen-activated protein kinase pathway in early embryogenesis of the echinoderm. Katow, H., Aizu, G. Dev. Growth Differ. (2002) [Pubmed]
  8. Pamlin-induced tyrosine phosphorylation of SUp62 protein in primary mesenchyme cells during early embryogenesis in the sea urchin, Hemicentrotus pulcherrimus. Katow, H., Washio, M. Dev. Growth Differ. (2000) [Pubmed]
  9. Nucleotide sequence of the proton ATPase beta-subunit homologue of the sea urchin Hemicentrotus pulcherrimus. Satoh, Y., Shimizu, T., Sendai, Y., Kinoh, H., Suzuki, N. Zool. Sci. (1994) [Pubmed]
  10. Cloning of cyclin E cDNA of the sea urchin, Hemicentrotus pulcherrimus. Kurokawa, D., Akasaka, K., Mitsunaga-Nakatsubo, K., Shimada, H. Zool. Sci. (1997) [Pubmed]
  11. Association of DNA polymerase alpha and beta with rough endoplasmic reticulum in sea-urchin eggs and changes in subcellular distribution during early embryogenesis. Shioda, M., Nagano, H., Mano, Y. Eur. J. Biochem. (1980) [Pubmed]
  12. Inhibition by palmitoyl CoA of dynein ATPase from sea urchin spermatozoa. Fujiwara, A., Yokokawa, M., Hino, A., Yasumasu, I. J. Biochem. (1982) [Pubmed]
  13. Change in the activity of Cl-,HCO3(-)-ATPase in microsome fraction during early development of the sea urchin, Hemicentrotus pulcherrimus. Mitsunaga, K., Fujino, Y., Yasumasu, I. J. Biochem. (1986) [Pubmed]
  14. Pulcherosine, a novel tyrosine-derived, trivalent cross-linking amino acid from the fertilization envelope of sea urchin embryo. Nomura, K., Suzuki, N., Matsumoto, S. Biochemistry (1990) [Pubmed]
  15. The 5-HT receptor cell is a new member of secondary mesenchyme cell descendants and forms a major blastocoelar network in sea urchin larvae. Katow, H., Yaguchi, S., Kiyomoto, M., Washio, M. Mech. Dev. (2004) [Pubmed]
  16. Isolation and characterization of low density detergent-insoluble membrane (LD-DIM) fraction from sea urchin sperm. Ohta, K., Sato, C., Matsuda, T., Toriyama, M., Lennarz, W.J., Kitajima, K. Biochem. Biophys. Res. Commun. (1999) [Pubmed]
  17. Molecular cloning and characterization of ryanodine receptor from unfertilized sea urchin eggs. Shiwa, M., Murayama, T., Ogawa, Y. Am. J. Physiol. Regul. Integr. Comp. Physiol. (2002) [Pubmed]
  18. Cleavage site of a major yolk protein (MYP) determined by cDNA isolation and amino acid sequencing in sea urchin, Hemicentrotus pulcherrimus. Yokota, Y., Unuma, T., Moriyama, A., Yamano, K. Comp. Biochem. Physiol. B, Biochem. Mol. Biol. (2003) [Pubmed]
  19. Calmodulin interaction with cytoplasmic and flagellar dynein: calcium-dependent binding and stimulation of adenosinetriphosphatase activity. Hisanaga, S., Pratt, M.M. Biochemistry (1984) [Pubmed]
  20. Transient activation of the micro1 homeobox gene family in the sea urchin ( Hemicentrotus pulcherrimus) micromere. Kitamura, K., Nishimura, Y., Kubotera, N., Higuchi, Y., Yamaguchi, M. Dev. Genes Evol. (2002) [Pubmed]
  21. Purification and characterization of a chymotrypsin-like enzyme from sperm of the sea urchin, Hemicentrotus pulcherrimus. Yamada, Y., Matsui, T., Aketa, K. Eur. J. Biochem. (1982) [Pubmed]
  22. Sox regulates transcription of the sea urchin arylsulfatase gene. Ogawa, M., Akasaka, K., Mitsunaga-Nakatsubo, K., Shimada, H. Dev. Growth Differ. (2000) [Pubmed]
 
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