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Gene Review

RNF25  -  ring finger protein 25

Homo sapiens

Synonyms: AO7, E3 ubiquitin-protein ligase RNF25, FLJ13906, RING finger protein 25
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Disease relevance of RNF25

  • In addition, a Microtox test showed that toxicity of the solution increased as a result of AO7 oxidation using this catalytic system [1].
  • The water purification potential of this new class of compound was evaluated by studying the photodegradation of Acid Orange 7 (AO7) and E. coli [2].

High impact information on RNF25

  • We found that both the RING finger and the C-terminal regions of AO7 were necessary for the transcriptional activation [3].
  • TiO2/Cr(VI)/Acid Orange 7 (AO7), TiO2/Cr(VI)/Rhodamine B (RhB), TiO2/Ag+/AO7, and TiO2/Ag+/RhB were chosen as test systems [4].
  • Acid Green 25 (AG25), Crystal Violet (CVI), Methylene Blue (MB), and Acid Orange 7 (AO7), representing paradigms of four types of commercial organic dyes, were therefore investigated in terms of their redox behavior [5].
  • The adsorption of a model textile azo-dye, Acid Orange 7 (AO7), on the surface of titanium dioxide was extensively investigated in aqueous TiO(2) suspensions over wide ranges of AO7 concentrations (1 x 10(-4)-3 x 10(-3) M) and pH values (2-10) [6].
  • A vertical-flow CW, planted with Phragmites sp. was fed with 127 mgl(-1) of acid orange 7 (AO7) at hydraulic loads of 28, 40, 53 and 108 l m(-2) day(-1) [7].

Biological context of RNF25

  • At a HRT of 8h, a more extensive reductive biotransformation was observed for DR254 (82%) than for AO7 (56%) [8].
  • The disappearance of AO7 followed pseudo first-order kinetics, whereas its mineralization could be described by zero-order kinetics [9].
  • Orange II, C.I. Acid Orange 7 (AO7), is oxidatively decolorized via catalytic oxidation by iron(III) phthalocyanine-tetrasulfonic acid (Fe(III)-PcTS) as a biomimetic catalyst and KHSO(5) as an oxygen donor [1].
  • The biosorption of Acid red 88 (AR88), Acid green 3 (AG3) and Acid orange 7 (AO7) by deactivated fresh water macro alga Azolla filiculoides was investigated in batch mode [10].

Associations of RNF25 with chemical compounds

  • The photodestruction of Acid Orange 7 (AO7), an anionic acidic dye, was studied in the UV/H2O2 process [11].
  • Complete loss of color, sulfanilic acid, and chemical oxygen demand (COD) indicate that AO7 is mineralized [12].
  • During mineralization of AO7, strain ICX reduces the azo bond under aerobic conditions and consumes the resulting cleavage product 1-amino-2-naphthol [12].
  • This study examined the photocatalytic degradation of three azo dyes, acid orange 7 (AO7), procion red MX-5B (MX-5B) and reactive black 5 (RB5) using a new type of nitrogen-doped TiO2 nanocrystals [13].
  • The decolorization of C.I. Acid Orange 7 (AO7), an anionic monoazo dye of acid class, was investigated using UV radiation in the presence of H2O2 in a tubular continuous-flow photoreactor as a function of oxidant and dye concentrations, reactor length and volumetric flow rate [14].

Analytical, diagnostic and therapeutic context of RNF25

  • Results obtained with the use of a variety of techniques, including potentiometric titrations, adsorption isotherms, adsorption edges, and microelectrophoresis, were used for the description of the "AO7 solution/TiO(2) surface" interface [6].
  • The determination of the adsorption mode of TiO(2), which is supported by ex situ FTIR results, as well as of the adsorption constant, K(ads), allowed the description of the pH dependency of the AO7 adsorption over large pH and AO7 concentration ranges [6].
  • A stable microbial biofilm community capable of completely mineralizing the azo dye acid orange 7 (AO7) was established in a laboratory scale rotating drum bioreactor (RDBR) using waste liquor from a sewage treatment plant [12].
  • Two bacterial strains (ICX and SAD4i) originally isolated from the RDBR were able to mineralize, in co-culture, up to 90% of added AO7 [12].
  • Although, HPLC chromatograms showed that 1-amino-2-naphthol, the other AO7 cleavage metabolite, was removed, aeration batch assays demonstrated that this could be due to auto-oxidation and not biological mineralization [8].


  1. Decolorization of orange II by catalytic oxidation using iron (III) phthalocyanine-tetrasulfonic acid. Rismayani, S., Fukushima, M., Ichikawa, H., Tatsumi, K. Journal of hazardous materials. (2004) [Pubmed]
  2. Novel tiO2 nanocatalysts for wastewater purification: tapping energy from the sun. Liu, Y., Li, J., Qiu, X., Burda, C. Water Sci. Technol. (2006) [Pubmed]
  3. RING finger protein AO7 supports NF-kappaB-mediated transcription by interacting with the transactivation domain of the p65 subunit. Asamitsu, K., Tetsuka, T., Kanazawa, S., Okamoto, T. J. Biol. Chem. (2003) [Pubmed]
  4. Simultaneous and synergistic conversion of dyes and heavy metal ions in aqueous TiO2 suspensions under visible-light illumination. Kyung, H., Lee, J., Choi, W. Environ. Sci. Technol. (2005) [Pubmed]
  5. An investigation into the initial degradation steps of four major dye chromophores: study of their one-electron oxidation and reduction by EPR, ENDOR, cyclic voltammetry, and theoretical calculations. Stanoeva, T., Neshchadin, D., Gescheidt, G., Ludvik, J., Lajoie, B., Batchelor, S.N. The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment & general theory. (2005) [Pubmed]
  6. Adsorption of Acid Orange 7 on the surface of titanium dioxide. Bourikas, K., Stylidi, M., Kondarides, D.I., Verykios, X.E. Langmuir : the ACS journal of surfaces and colloids. (2005) [Pubmed]
  7. Aerobic degradation of acid orange 7 in a vertical-flow constructed wetland. Davies, L.C., Pedro, I.S., Novais, J.M., Martins-Dias, S. Water Res. (2006) [Pubmed]
  8. Monoazo and diazo dye decolourisation studies in a methanogenic UASB reactor. Brás, R., Gomes, A., Ferra, M.I., Pinheiro, H.M., Gonçalves, I.C. J. Biotechnol. (2005) [Pubmed]
  9. Kinetic modeling of the radiolytic degradation of Acid Orange 7 in aqueous solutions. Zhang, S.J., Yu, H.Q., Zhao, Y. Water Res. (2005) [Pubmed]
  10. Batch and column studies on biosorption of acid dyes on fresh water macro alga Azolla filiculoides. Padmesh, T.V., Vijayaraghavan, K., Sekaran, G., Velan, M. Journal of hazardous materials. (2005) [Pubmed]
  11. Photodestruction of Acid Orange 7 (AO7) in aqueous solutions by UV/H2O2: influence of operational parameters. Behnajady, M.A., Modirshahla, N., Shokri, M. Chemosphere (2004) [Pubmed]
  12. Degradation of acid orange 7 in an aerobic biofilm. Coughlin, M.F., Kinkle, B.K., Bishop, P.L. Chemosphere (2002) [Pubmed]
  13. Photocatalytic degradation of azo dyes by nitrogen-doped TiO2 nanocatalysts. Liu, Y., Chen, X., Li, J., Burda, C. Chemosphere (2005) [Pubmed]
  14. Kinetic modeling on photooxidative degradation of C.I. Acid Orange 7 in a tubular continuous-flow photoreactor. Behnajady, M.A., Modirshahla, N. Chemosphere (2006) [Pubmed]
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