Researcher Serial Crystallography Analysis Of Sensory Rhodopsin Ii

Göteborg University
April 19, 2024
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Contract Type:Fixed term during 12
Working Time:Full time
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The Department of Chemistry and Molecular Biology conducts high-quality research and education in chemical sciences and molecular life sciences. Our research and education focus is on a deep understanding of chemical and biological processes in cells and in the environment.

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Neutze has been working in the field of time-resolved serial X-ray crystallography of integral membrane proteins using X-ray free electron lasers since 2010. Both time-resolved serial crystallography and serial crystallography using synchrotron radiation later emerged as powerful experimental methods for studying protein structure and function. There are many challenges associated with the processing of serial X-ray crystallography data and in extracting high quality electron density maps. There have also recently been major commitments made towards time-resolved serial crystallography by synchrotron radiation sources, including the construction of new beamlines at MAX IV Laboratory, the ESRF, Diamond and the Swiss Light Source.

Several years ago, Neutze's group recorded time-resolved serial synchrotron X-ray crystallography data from microcrystals of sensory rhodopsin II and sensory rhodopsin II in complex with its transducer protein. These data were collected at the Swiss Light Source. Since these crystals only diffracted to relatively low-resolution, we must improve the analysis of these data by utilizing recent advances in X-ray data processing tools. Most importantly, there have been critical advances in the use of machine learning for the processing and scaling of serial X-ray crystallography data (eg. Careless: https: // www. nature.com/articles/s41467-022-35280-8) as well as the development and release of other tools for analyzing time-resolved X-ray crystallography data (eg. Xtrapol8: https: // www. nature.com/articles/s42003-022-03575-7).

We therefore seek to fill position as Researcher focused upon the analysis of serial synchrotron X-ray crystallography data collected from sensory rhodopsin II, and sensory rhodopsin II in complex with its transducer protein. The goal for this position is to bring the serial crystallography work on sensory rhodopsin II to publication. The successful candidate must be able demonstrate expertise in the processing of serial crystallography data, as well as experience in the use of machine learning tools for the analysis of these data. Since complementary spectroscopy studies from crystals of sensory rhodopsin will be required for publication, a working knowledge of the sensory rhodopsin II and transducer protein production, purification and crystallization protocols, is also essential.

Duties

To bring serial synchrotron crystallography data collected from sensory rhodopsin II to publication we are seeking to appoint a Researcher for twelve months who has can:

  • Process and merge time-resolved serial crystallography data collected using synchrotron radiation.
  • Implement and utilize machine learning tools to merge and scale serial crystallography data (https: // www. nature.com/articles/s41467-022-35280-8) so as to improve the quality of various electron density maps.
  • Utilize and evaluate other tools for the analysis of serial crystallography data (https: // www. nature.com/articles/s42003-022-03575-7) so as to improve modelling of structural changes in the sensory rhodopsin II:transducer protein complex.
  • Produce of sensory rhodopsin II and transducer protein for crystallization and time-resolved UV/Vis spectroscopy studies from crystals.
  • Participate in all aspects of the analysis and presentation of serial crystallography data from sensory rhodopsin II so as to bring the work to publication.
  • Qualifications

    For the position of Researcher, applicants must have completed a PhD degree in Natural Science or its equivalent. It is also essential that the successful candidate can demonstrate practical knowledge of:

  • Processing and merging time-resolved serial crystallography data.
  • Experience with machine learning tools to merge and scale serial crystallography data, as well as other computer packages for modelling structural changes in proteins.
  • Production of sensory rhodopsin II and transducer protein for crystallization experiments, since crystals are required for time-resolved UV/Vis spectroscopy studies.
  • Applicants must be willing to participate in all other tasks required for the publication of time-resolved serial crystallography data from sensory rhodopsin II.

    The quality of the publication record of the applicant concerning the study of conformational changes in proteins other than sensory rhodopsin II will be an important consideration. Contributions to unpublished manuscripts in PhD thesis will also be considered a merit.

    Employment

    Fixed term during 12 months full time (100%) at the Department of Chemistry and Molecular Biology.

    Contact information for the post

    If you have any questions about the position, please contact Richard Neutze ([email protected])

    Unions

    Union representatives at the University of Gothenburg can be found here: https: // www. gu.se/om-universitetet/jobba-hos-oss/hjalp-for-sokande

    Application

    To apply for a position at the University of Gothenburg, you have to create an account in our recruitment system. Submit your application via the University of Gothenburg's recruitment portal by clicking the “Apply” button. It is your responsibility to ensure that the application is complete as per the vacancy notice, and that the University receives it by the final application deadline.

    The application must include:

  • The candidate's CV
  • A list of publications from the candidate.
  • A cover letter which details the experience of the candidate in the areas of science required for the position.
  • Contact details for up to two referees who may be contacted for a recommendation of the candidate if required.
  • Applications must be received by: 2024-04-19

    The University works actively to achieve a working environment with equal conditions, and values the qualities that diversity brings to its operations.

    Salaries are set individually at the University.

    In accordance with the National Archives of Sweden's regulations, the University must archive application documents for two years after the appointment is filled. If you request that your documents are returned, they will be returned to you once the two years have passed. Otherwise, they will be destroyed.

    In connection to this recruitment, we have already decided which recruitment channels we should use. We therefore decline further contact with vendors, recruitment and staffing companies.

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