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Supplementary Tables 1-8 from Multi-omic detection of <i>Mycobacterium leprae</i> in archaeological human dental calculus

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DataCite Commons2024-02-14 更新2024-07-28 收录
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Mineralized dental plaque (calculus) has proven to be an excellent source of ancient biomolecules. Here, we present a <i>Mycobacterium leprae</i> genome (6.6-fold), the causative agent of leprosy, recovered via shotgun sequencing of sixteenth-century human dental calculus from an individual from Trondheim, Norway. When phylogenetically placed, this genome falls in branch 3I among the diversity of other contemporary ancient strains from Northern Europe. Moreover, ancient mycobacterial peptides were retrieved via mass spectrometry-based proteomics, further validating the presence of the pathogen. <i>Mycobacterium leprae</i> can readily be detected in the oral cavity and associated mucosal membranes, which likely contributed to it being incorporated into this individual's dental calculus. This individual showed some possible, but not definitive, evidence of skeletal lesions associated with early-stage leprosy. This study is the first known example of successful multi-omics retrieval of <i>M. leprae</i> from archaeological dental calculus. Furthermore, we offer new insights into dental calculus as an alternative sample source to bones or teeth for detecting and molecularly characterizing <i>M. leprae</i> in individuals from the archaeological record.This article is part of the theme issue ‘Insights into health and disease from ancient biomolecules’.

矿化牙菌斑(牙结石,calculus)已被证实为古代生物分子的优质研究来源。本研究报道了一株麻风分枝杆菌(*Mycobacterium leprae*)基因组,其测序覆盖度达6.6倍——该菌为麻风病的致病菌——样本源自挪威特隆赫姆一名个体的16世纪人类牙结石,通过鸟枪法测序(shotgun sequencing)获取。系统发育分析显示,该基因组隶属于北欧其他同期古代菌株的3I分支。此外,通过基于质谱(mass spectrometry)的蛋白质组学(proteomics)分析,我们检索到了古代分枝杆菌肽段,进一步验证了该病原体的存在。麻风分枝杆菌可在口腔及相关黏膜组织中检出,这大概率是其得以掺入该个体牙结石的原因。该个体存在与早期麻风相关的疑似但非确定性的骨骼病变证据。本研究是首例从考古牙结石中成功获取麻风分枝杆菌多组学数据的案例。此外,本研究为牙结石作为骨骼或牙齿的替代样本来源,用于考古记录中个体麻风分枝杆菌的检测与分子特征解析提供了新的见解。本文属于“古代生物分子视角下的健康与疾病”专题栏目内容。

提供机构:
The Royal Society
创建时间:
2020-08-19
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