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Archaeological proteomics: Method development and analysis of protein-ceramic binding.

机译:考古蛋白质组学:蛋白质-陶瓷结合的方法开发和分析。

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摘要

The analysis of protein residues recovered from archaeological artifacts provides a unique opportunity to reveal new information about past societies. However, many scientists are currently unwilling to accept protein-based results due to problems in method development and a basic lack of agreement regarding the ability of proteins to bind to, and preserve within, artifacts such as pottery. In this paper, I address these challenges by conducting a two-phase experiment. First, I quantitatively evaluate the tendency of proteins to sorb to ceramic matrices by using total organic carbon analysis and spectrophotometric assays to analyze samples of experimentally cooked ceramic. I then test a series of solvent and physical parameters in order to develop an optimized method for extracting and preparing protein residues for identification via mass spectrometry. Results demonstrate that protein strongly sorbs to ceramic and is not easily removed, despite repeated washing, unless an appropriate extraction strategy is used. This has implications for the future of paleodietary, conservation ecology and forensic research in that it suggests the potential for recovery of aged or even ancient proteins from ceramic matrices.
机译:从考古文物中回收的蛋白质残留物的分析提供了独特的机会来揭示有关过去社会的新信息。但是,由于方法开发方面的问题以及关于蛋白质与陶器等制品结合并保存在其中的能力的基本共识,许多科学家目前不愿接受基于蛋白质的结果。在本文中,我将通过进行两个阶段的实验来应对这些挑战。首先,我通过使用总有机碳分析和分光光度法来分析实验煮熟的陶瓷样品,定量评估蛋白质吸附到陶瓷基质中的趋势。然后,我测试了一系列溶剂和物理参数,以便开发一种优化的方法来提取和制备蛋白质残留物,以通过质谱鉴定。结果表明,除非反复洗涤,否则蛋白质会强烈吸附到陶瓷上,并且不容易除去,除非使用适当的提取策略。这对古生物学,保护生态学和法医学研究的未来具有影响,因为它暗示了从陶瓷基质中回收陈旧甚至古老蛋白质的潜力。

著录项

  • 作者

    Barker, Andrew L.;

  • 作者单位

    University of North Texas.;

  • 授予单位 University of North Texas.;
  • 学科 Anthropology Archaeology.Chemistry Biochemistry.Biogeochemistry.
  • 学位 M.S.
  • 年度 2010
  • 页码 93 p.
  • 总页数 93
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-17 11:36:56

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