• Korean Journal of Microbiology
• /
• v.27 no.1
• /
• pp.27-34
• /
• 1989

In order to evaluate the applicability of enzyme electrophoresis for the identification of intra/interspecific hybride obtained by the protoplast fusion in Trichoderma, soluble proteins, intracellular soluble enzymes and extracellular $\beta$-glucosidase were analyzed by polyacrylamide gel electrophorsis. As the results, patterns of soluble protein, and isozyme patterns of peroxidase, malate dehydrogenase, and $\beta$-glucosidase in hydrids were defferent from those in parental and wild type strains. Therefore, it was established that the analysis of protein pattern by electrophoresis could be applied to isolate and identify the hybrids from the protoplast fusion.

• The Korean Journal of Zoology
• /
• v.17 no.4
• /
• pp.159-162
• /
• 1974

Serum protein and hemoglobin patterns were obtained by cellulose acetate electrophoresis for several anurans. Differences were found both in the number of components from individual animal hemoglobins and in the mobility of these components. Under the conditions employed, toad and R. plancyichosenica had a single component. Other frogs showed 2-component pattern. Sera of all anurans examined contain albumin but no preablumin. Relatively few assayable proteins are found in serum from B. buro gragraizans and differ thereby from most serum patterns examined for frogs, which show complex serum protein bands. Different species have dissimilar patterns although some of bands are apparently homologous between species.

• Reproductive and Developmental Biology
• /
• v.37 no.3
• /
• pp.103-108
• /
• 2013

An uterus is female reproductive tract organ that affected estrus cycle. During a various changes occur at uterus in estrus cycle, one of them is body fluids secretion be called uterine fluid. Therefore, the objective of this study was to investigate the changes of protein patterns using two-dimensional gel electrophoresis in uterus fluids during the follicular and luteal phases in estrus cycle of pigs. In changes of protein spots were confirmed during the follicular and luteal phases. The 136 spots were expressed in follicular phase, the 57 spots of them showed reproducibility. On the other hand, the 140 spots were expressed in luteal phase, the 73 spots of them showed reproducibility. Also, spots expressed in follicular phase were number 69 and 94 spots and spots expressed in luteal phase only were number 156, 157, 184~187, 190 and 191 spots. The spots which of higher expression levels in the luteal phase than in follicular phase were number 76 and 79 spots. In conclusion, the spots expressed in follicular and luteal phases were confirmed with difference levels and these differences are function of RNA resolving, protein synthesis and cytoskeletal architecture.

• The Korean Journal of Zoology
• /
• v.29 no.3
• /
• pp.190-200
• /
• 1986

The male and female muscle of the 16 major bands in the protein patterns of the tissues of the mud-snail, Cipangopaludina chinensis malleata, were almost similar, and the bands E (Mr. 41,500), H (Mr. 52,100), L (Mr. 71,700), N(Mr. 98,500), O (Mr. 107,900) and P (Mr. 112,900) had the same molecular weights which appear in the muscles, testis and ovary. But it showed that the testis and the ovary had their characteristic patterns, and it was also observed that, besides the bands common to all tissues, the bands which appear both in the testis and the ovary are about five: the bands d (Mr. 15,600), k (Mr. 37,100), p (Mr. 57,000), s (Mr. 80,300), and v (Mr. 105,400). The result of the amino acid analysis showed that the quantity and composition of amino acid appeared, as the protein pattersn did, in the order of ovary, muscles and testis. This reveals that in the ovary a great quantity of protein which appears in the whole body was investigated, while the testis contained only little protein due to the phenomenon of morphogenesis in which sperms were developed through the condensation of the nuclei.

• The Korean Journal of Ecology
• /
• v.12 no.1
• /
• pp.37-49
• /
• 1989

When the light stimulus was presented continuously, habituations were formed, after 13 and 14 hrs in amoeba and planaria, repectively. As amoeba more habituated, the light-escaping velocity of streaming was decreased with a negative-exponential function. in two-dimensional electrophoretic patterns of proteins of amoeba habituated, a newly synthesized protein (pI 7.0, MW 20 kD) was detected. Therefore, it is conjectured that similarity or commonality may exist between amoeba and planaria habituations to light, and in these behavioral modifications, specific protein(s) may be involved in molecular level.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.28 no.2
• /
• pp.292-298
• /
• 1999

Myofibril and actomyosin were prepared from red muscle and white muscle of fresh water fish and sea water fish, and their biochemical characteristics and SDS PAGE patterns of myofibril were compared. SDS PAGE analysis showed that electrophoretic patterns of myofibril were similar be tween white muscle and red muscle, while difference of 30kDa component of myofibril was detected between fresh water fish and sea water fish. When myofibril were treated with trypsin, difference in hydrolysis of heavy chain was observed between white muscle and red muscle. In activities of Ca ATPase, Mg ATPase, EDTA ATPase and ATPase activity pH curve, myofibrillar protein from fresh water fish showed higher specific activity than those from sea water fish.

• The Korean Journal of Zoology
• /
• v.37 no.1
• /
• pp.130-136
• /
• 1994

Although alteration in protein phosphorylation by specific protein kinases is of importance in transducing cellular signals in a variety of neural/endocrine systems, little is known about protein phosphorylation in the hvpothalamus. The present study aims to explore whether activation of the second messenger-dependent protein kinases affects phosphorylation of specific proteins using a cell free phosphorylation system followed by SDS-polvacrylamide gel electrophoresis. Cytoplasmic fractions derived from hvpothalami of immature rats were used as substrates and several activators and/or inhibitors of CAMP-, phosphatidylinositol- and Ca2+-calmodulin-dependent protein kinases were assessed. Many endogenous proteins were extensively phosphorylated and depending on the signal transduction pathways, phosphorvlation profiles were markedly different. The present data indicate that extracellular signals may affect cellular events through protein phosphorylation by second messengers-protein kinases in the rat hypothalamus.

• Proceedings of the Korean Society of Developmental Biology Conference
• /
• 2005.10a
• /
• pp.119-119
• /
• 2005

• Proceedings of the Korean Society of Embryo Transfer Conference
• /
• 2005.10a
• /
• pp.119-119
• /
• 2005

• Genomics & Informatics
• /
• v.10 no.2
• /
• pp.128-132
• /
• 2012

To learn the differences between the structure-activity relationship and molecular vibration-activity relationship in the ligand-receptor interaction of the histamine receptor, 47 ligands of the histamine receptor were analyzed by structural similarity and molecular vibrational frequency patterns. The radial tree that was produced by clustering analysis of molecular vibrational frequency patterns shows its potential for the functional classification of histamine receptor ligands.