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PCC  -  Cataract, polymorphic congenital,...

Homo sapiens

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Disease relevance of PCC

  • In addition to scientific publications, information from three cyanobacterial genomes, the unicellular Synechocystis strain PCC 6803 and the filamentous heterocystous Anabaena strain PCC 7120 and Nostoc punctiforme (PCC 73102/ATCC 29133) is included [1].
  • We investigated the effects in vivo of ROS to clarify the nature of the damage caused by such excess light energy to the photosynthetic machinery in the cyanobacterium Synechocystis sp. PCC 6803 [2].
  • Anabaena PCC 7118 is a heterocystless mutant strain that is known to fix nitrogen when deprived of combined nitrogen under anaerobic conditions [3].
  • However, the site at which DBMIB can inhibit light-induced redox turnover is within a few A of the [2Fe-2S] cluster, as shown by the absence of inhibition in mutants of Synechococcus sp. PCC 7002 at iron sulfur protein-Leu-111 near the cluster [4].
  • KaiC from Synechococcus elongatus PCC 7942 (KaiC) is an essential circadian clock protein in cyanobacteria [5].

High impact information on PCC

  • A covalent stoichiometric complex between photosystem I (PSI) and ferredoxin from the cyanobacterium Synechocystis sp. PCC 6803 was generated by chemical cross-linking [6].
  • Transduction of the light signal during complementary chromatic adaptation in the cyanobacterium Calothrix sp. PCC 7601: DNA-binding proteins and modulation by phosphorylation [7].
  • Here, we demonstrate that this photoprotective mechanism, characterized by blue light-induced fluorescence quenching, is indeed phycobilisome-related and that a soluble carotenoid binding protein, ORANGE CAROTENOID PROTEIN (OCP), encoded by the slr1963 gene in Synechocystis PCC 6803, plays an essential role in this process [8].
  • DNA microarrays bearing nearly all of the genes of the unicellular cyanobacterium Synechocystis sp PCC 6803 were used to examine the temporal program of gene expression during acclimation from low to high light intensity [9].
  • By using an immobilized cysteine 35-to-serine site-directed mutant of the Synechocystis sp. PCC 6803 thioredoxin TrxA as bait, we screened the Synechocystis cytosolic and peripheral membrane protein complements for proteins interacting with TrxA [10].

Chemical compound and disease context of PCC


Biological context of PCC

  • Sequences of two peptides derived from human liver PCC were used to specify oligonucleotide probes that were then used to screen a human fibroblast cDNA library [16].
  • In this study, we have established the pathogenicity of 11 PCCA mutations (10 missense and an in-frame deletion) by expression studies in deficient fibroblasts and in a cell-free in vitro system, and analyzed the effect of each mutation on PCC activity, protein stability and domain structure [17].
  • In this study, sequences related to those encoding eukaryotic protein kinases were amplified by PCR from DNA of Anabaena PCC 7120, a filamentous cyanobacterium that differentiates cells specifically for nitrogen fixation, called heterocysts, under conditions of combined nitrogen limitation [18].
  • Following activation, the chromosomes segregated and moved towards the two PCC spindle poles, then formed two nuclei [19].
  • In the cyanobacterium Synechocystis sp. PCC 6803, transcription of the mntCAB operon, encoding a high affinity Mn transporter, occurs under Mn starvation (nm Mn) conditions but not in Mn-sufficient (microm Mn) growth medium [20].

Anatomical context of PCC

  • Lymphocyte propionyl-CoA carboxylase (PCC; EC activity has proved to be a sensitive indicator of biotin status that is more accurate than is serum biotin concentration [21].
  • Fetal hepatic biotin content and PCC activity decrease indicating that the fetuses also become biotin deficient [22].
  • We have recently developed a two-dimensional separation procedure to purify thylakoid and plasma membranes from the genetically widely studied cyanobacterium Synechocystis sp. PCC 6803 [23].
  • Nevertheless, within the experimental error, nearly the same exchange rates were measured for thylakoid samples made from wild type and an MSP-lacking mutant of Synechocystis PCC 6803 [24].
  • Herein, we used the I-E(K)-restricted T cell epitope of pigeon/moth cytochrome c (PCC/MCC(88-103)) to assess the ability of T cells to recognize ligands containing nitrotyrosine [25].

Associations of PCC with chemical compounds

  • Propionyl-CoA carboxylase [PCC, propanoyl-CoA:carbon-dioxide ligase (ADP-forming), EC] is a biotin-dependent enzyme involved in the degradation of branched-chain amino acids, fatty acids with odd-numbered chain lengths, and other metabolites [16].
  • These data suggest that the level of PCCA expression in fibroblasts does not normally limit PCC holoenzyme activity or propionate flux [26].
  • First value Salvelinus (Alps), second value Dissostich (Antarctic Ocean), alpha-HCH: 40/0,1; beta-HCH: 4,1/0,1; gamma-HCH: 17,2/0,1; HCB: 65/8; 4,4'-DDT: 59/4; 4,4'-DDE: 477/5; sigma DDT 646/11,4; sigma PCB: 1030/32; sigma PCC: 124/68 [27].
  • Several recent reports indicate that both toxaphene (polychlorocamphene, PCC) and chlordane are widespread pollutants in our environment [28].
  • The directionality of electron transfer in Photosystem I (PS I) is investigated using site-directed mutations in the phylloquinone (QK) and FX binding regions of Synnechocystis sp. PCC 6803 [29].

Physical interactions of PCC

  • Role of a cluster of hydrophobic residues near the FAD cofactor in Anabaena PCC 7119 ferredoxin-NADP+ reductase for optimal complex formation and electron transfer to ferredoxin [30].

Other interactions of PCC

  • Nevertheless, when acutely infected transgenic mice were primed by PCC injection, the lymphokine responses measured after in vitro antigen restimulation displayed a strong Th1 bias which was shown to be dependent on endogenous interleukin 12 (IL-12) [31].
  • We demonstrate the reliability of this method for identification of the defective PCC gene in order to unequivocally approach the mutational analysis in the corresponding PCCA and PCCB genes [32].
  • Pharmacologic doses of biotin increase lymphocyte PCC, PC, and ACC activities [21].
  • Deficiency of propionyl-CoA carboxylase (PCC; alpha 4 beta 4) results in the rare, autosomal recessive disease propionic acidemia [33].
  • Crystal structure of heme oxygenase-1 from cyanobacterium Synechocystis sp. PCC 6803 in complex with heme [34].

Analytical, diagnostic and therapeutic context of PCC

  • To determine the structural organization of cytochrome b559 in the membrane, we used site-directed mutagenesis to fuse the coding regions of the two respective genes in the cyanobacterium Synechocystis sp. PCC 6803 [35].
  • In view of uncontrolled observations and anecdotal reports suggesting that the activated PCC, Autoplex, was much more effective than standard (non-activated) PCC in controlling bleeding in hemophiliacs with inhibitors, a controlled double-blind study was designed to compare the effectiveness of Autoplex and Proplex [36].
  • It is noteworthy that a single dose of PCC was judged effective in 50% of episodes, a figure that is consistent with other published clinical trials [36].
  • Molecular cloning of the genes encoding two chaperone proteins of the cyanobacterium Synechocystis sp. PCC 6803 [37].
  • To understand better the stability of flavoproteins, we have studied the energetics of the complex between FMN and the apoflavodoxin from Anabaena PCC 7119 by a combination of site-directed mutagenesis, titration calorimetry, equilibrium binding constant determinations, and x-ray crystallography [38].


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  7. Transduction of the light signal during complementary chromatic adaptation in the cyanobacterium Calothrix sp. PCC 7601: DNA-binding proteins and modulation by phosphorylation. Sobczyk, A., Schyns, G., Tandeau de Marsac, N., Houmard, J. EMBO J. (1993) [Pubmed]
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  10. Thioredoxin-linked processes in cyanobacteria are as numerous as in chloroplasts, but targets are different. Lindahl, M., Florencio, F.J. Proc. Natl. Acad. Sci. U.S.A. (2003) [Pubmed]
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  14. Structure-function relationships of cyanobacterial ADP-glucose pyrophosphorylase. Site-directed mutagenesis and chemical modification of the activator-binding sites of ADP-glucose pyrophosphorylase from Anabaena PCC 7120. Charng, Y.Y., Iglesias, A.A., Preiss, J. J. Biol. Chem. (1994) [Pubmed]
  15. Transport of basic amino acids by the dinitrogen-fixing cyanobacterium Anabaena PCC 7120. Herrero, A., Flores, E. J. Biol. Chem. (1990) [Pubmed]
  16. Isolation of cDNA clones coding for the alpha and beta chains of human propionyl-CoA carboxylase: chromosomal assignments and DNA polymorphisms associated with PCCA and PCCB genes. Lamhonwah, A.M., Barankiewicz, T.J., Willard, H.F., Mahuran, D.J., Quan, F., Gravel, R.A. Proc. Natl. Acad. Sci. U.S.A. (1986) [Pubmed]
  17. Functional characterization of PCCA mutations causing propionic acidemia. Clavero, S., Martínez, M.A., Pérez, B., Pérez-Cerdá, C., Ugarte, M., Desviat, L.R. Biochim. Biophys. Acta (2002) [Pubmed]
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  19. The first cell cycle after transfer of somatic cell nuclei in a non-human primate. Ng, S.C., Chen, N., Yip, W.Y., Liow, S.L., Tong, G.Q., Martelli, B., Tan, L.G., Martelli, P. Development (2004) [Pubmed]
  20. A two-component signal transduction pathway regulates manganese homeostasis in Synechocystis 6803, a photosynthetic organism. Ogawa, T., Bao, D.H., Katoh, H., Shibata, M., Pakrasi, H.B., Bhattacharyya-Pakrasi, M. J. Biol. Chem. (2002) [Pubmed]
  21. Effects of biotin on pyruvate carboxylase, acetyl-CoA carboxylase, propionyl-CoA carboxylase, and markers for glucose and lipid homeostasis in type 2 diabetic patients and nondiabetic subjects. Báez-Saldaña, A., Zendejas-Ruiz, I., Revilla-Monsalve, C., Islas-Andrade, S., Cárdenas, A., Rojas-Ochoa, A., Vilches, A., Fernandez-Mejia, C. Am. J. Clin. Nutr. (2004) [Pubmed]
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