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  1. No Access

    Protocol

    Methods to Study Antagonistic Activities Among Oral Bacteria

    Most bacteria in nature exist in multispecies communities known as biofilms. In the natural habitat where resources (nutrient, space, etc.) are usually limited, individual species must compete or collaborate w...

    Fengxia Qi, Jens Kreth in Oral Biology (2023)

  2. Article

    Open Access

    Mutagenesis and redox partners analysis of the P450 fatty acid decarboxylase OleTJE

    The cytochrome P450 enzyme OleTJE from Jeotgalicoccus sp. ATCC 8456 is capable of converting free long-chain fatty acids into α-alkenes via one-step oxidative decarboxylation in presence of H2O2 as cofactor or us...

    Bo Fang, Huifang Xu, Yi Liu, Fengxia Qi, Wei Zhang, Hui Chen in Scientific Reports (2017)

  3. No Access

    Article

    In vitro reconstitution of the cyclosporine specific P450 hydroxylases using heterologous redox partner proteins

    The cytochrome P450 enzymes (CYPs) CYP-sb21 from Sebekia benihana and CYP-pa1 from Pseudonocardia autotrophica are able to hydroxylate the immunosuppressant cyclosporin A (CsA) in a regioselective manner, giving ...

    Yue Sun, Li Ma, Dongfei Han, Lei Du in Journal of Industrial Microbiology & Biote… (2017)

  4. No Access

    Protocol

    Methods to Study Antagonistic Activities Among Oral Bacteria

    Most bacteria in nature exist in multispecies communities known as biofilms. In the natural habitat where resources (nutrient, space, etc.) are usually limited, individual species must compete or collaborate w...

    Fengxia Qi, Jens Kreth in Oral Biology (2017)

  5. Article

    Open Access

    Improved production of fatty alcohols in cyanobacteria by metabolic engineering

    Fatty alcohols are widely used in industrial chemicals. The biosynthetic pathways for fatty alcohols are diverse and widely existing in nature. They display a high capacity to produce fatty alcohols by the met...

    Lun Yao, Fengxia Qi, **aoming Tan, Xuefeng Lu in Biotechnology for Biofuels (2014)

  6. No Access

    Article

    Construction, characterization and application of molecular tools for metabolic engineering of Synechocystis sp.

    An integrative gene expression system has been constructed for the directional assembly of biological components in Synechocystis PCC6803. We have characterized 11 promoter parts with various expression efficienc...

    Fengxia Qi, Lun Yao, **aoming Tan, Xuefeng Lu in Biotechnology Letters (2013)

  7. No Access

    Protocol

    Characterization of Anti-competitor Activities Produced by Oral Bacteria

    Most bacteria in nature exist in multispecies communities known as biofilms. In the natural habitat where resources (nutrient, space, etc.) are usually limited, individual species must compete or collaborate w...

    Fengxia Qi, Jens Kreth in Oral Biology (2010)

  8. Article

    Open Access

    Specific Binding and Mineralization of Calcified Surfaces by Small Peptides

    Several small (<25aa) peptides have been designed based on the sequence of the dentin phosphoprotein, one of the major noncollagenous proteins thought to be involved in the mineralization of the dentin extrace...

    Daniel K. Yarbrough, Elizabeth Hagerman, Randal Eckert in Calcified Tissue International (2010)

  9. No Access

    Chapter

    Quorum Sensing in Streptococci

    Emerging studies aimed at understanding the molecular underpinnings of streptococcal infections highlight the importance of quorum sensing (QS) for biofilm formation and virulence in many ...

    M. Dilani Senadheera, Fengxia Qi in Control of Biofilm Infections by Signal Ma… (2008)