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Color Oc-currence Features for Image Similarity
YoungMie Choi,Moon Won Choo 한국멀티미디어학회 2009 한국멀티미디어학회 국제학술대회 Vol.2009 No.-
In this paper, color co-occurrence features are investigated as part of the research of determining the degree of image similarity In natural settings. Cooccurrence features are frequently used for describing textures of images, which is well understood and applied to various applications. In this paper one of the color invariant spaces is compared to RGB, YCbCr and HSV space in terms of invariance consistency embedded in cooccurrence features. The experimental results are presented.
Choi, Yon-Sik,Hoon Jeong, Jae,Min, Hye-Ki,Jung, Hee-Jung,Hwang, Daehee,Lee, Sang-Won,Kim Pak, Youngmi Royal Society of Chemistry 2011 Molecular bioSystems Vol.7 No.5
<P>Transcription and replication of mitochondrial DNA (mtDNA) are regulated by nuclear DNA-encoded proteins that are targeted into mitochondria. A decrease in mtDNA copy number results in mitochondrial dysfunction, which may lead to insulin resistance and metabolic syndromes. We analyzed mitochondrial proteins that physically bind to human mitochondrial D-loop DNA using a shot-gun proteomics approach following protein enrichment by D-loop DNA-linked affinity chromatography. A total of 152 D-loop DNA binding proteins were identified by peptide sequencing using ultra high pressure capillary reverse-phase liquid chromatography/tandem mass spectrometry. Bioinformatic analysis showed that 68 were mitochondrial proteins, 96 were DNA/RNA/protein binding proteins and 114 proteins might form a complex <I>via</I> protein–protein interactions. Histone family members of H1, H2A, H2B, H3, and H4, were detected in abundance among them. In particular, histones H2A and H2B were present in the mitochondrial membrane as integral membrane proteins and not bound directly to mtDNA inside the organelle. Histones H1.2, H3 and H4 were associated with the outer mitochondrial membrane. Silencing of H2AX expression inhibited mitochondrial protein transport. Our data suggests that many mitochondrial proteins may reside in multiple subcellular compartments like H2AX and exert multiple functions.</P> <P>Graphic Abstract</P><P>We identified 152 mitochondrial proteins having affinity to mitochondrial D-loop DNA, which may form a large protein complex through protein–protein interactions. Many mitochondrial proteins including histone H2AX may be involved in multiple functions in multiple subcellular compartments. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c0mb00277a'> </P>
Youngmi Kim,Mausumi Adhya,Kwang-Sik. Choi,Younghun Yu,Moonjae Cho 한국당과학회 2012 한국당과학회 학술대회 Vol.2012 No.1
Lectin has been played a key innate immune parameter in invertebrate host defense. Previously, we reported a novel sialic acid specific lectin (MC-sialec) cloned from EST sequence of Manila clam hemocytes infected with Perkinsus olseni. The lectin was expressed in E. coli M 15 and purified by Ni-NTA His binding resin matrix for antibody production. Lectin specific antibody was raised in mice. The presence of this lectin in different tissues of Perkinsus infected manila clam was studied by both Real Time-PCR and immunohistochemical localization assay. The results showed that upon infection, expression of MC-sialec was induced and expressed in foot, gill, adductor, mantle, hemocyte, stomach, intestine and digestive gland, siphon, palp and female gonad. Vibrio Tapetis infection induced expression of MC-sialec in hemocytes.