Unique biosynthesis of dehydroquinic acid?

Unique biosynthesis of dehydroquinic acid?
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脱氢奎宁酸的独特生物合成?

DOI:
10.1016/j.bioorg.2004.06.003
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发表时间:
2004
期刊:
Bioorganic chemistry.
影响因子:
--
通讯作者:
Woodard,RonaldW
Woodard,RonaldW
中科院分区:
--
文献类型:
--
作者:
Woodard,RonaldW

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对嗜热微生物风产液菌(Aquifex aeolicus)、闪烁古生球菌(Archaeoglobus fulgidus)、热自养甲烷杆菌(Methanobacterium thermoautotrophicum)和詹氏甲烷球菌(Methanococcus jannaschii)的基因组序列进行搜索,以寻找参与莽草酸生物合成途径的前七种酶(aroG、B、D、E、K、A和C),发现缺失了两种关键酶。途径中的第一种酶,3-脱氧-d-阿拉伯-庚酮糖酸7-磷酸合酶(aroG)和途径中的第二种酶,5-脱氢奎尼酸合酶(aroB)是“缺失的”。在这些生物体中存在莽草酸途径的其余五个基因,并且与相应的大肠杆菌基因相似。嗜热菌深海热球菌(Pyrococcus abyssi)和海栖热袍菌(Thermotoga maritima)的基因组序列含有aroG和aroB基因。几种真菌如烟曲霉、构巢曲霉、酿酒酵母、粟酒裂殖酵母、卡氏肺孢子虫等。卡氏链孢菌和粗糙脉孢菌含有基因aroM,这是一种五功能酶,其总体活性相当于由aroB、D、E、K和A基因表达的蛋白质的组合催化活性。其中两种真菌也缺乏aroG基因。这些失踪的酶的潜在原因的讨论。
A search of the genomic sequences of the thermophilic microorganisms Aquifex aeolicus, Archaeoglobus fulgidus, Methanobacterium thermoautotrophicum, and Methanococcus jannaschii for the first seven enzymes (aroG, B, D, E, K, A, and C ) involved in the shikimic acid biosynthetic pathway reveal two key enzymes are missing. The first enzyme in the pathway, 3-deoxy-d-arabino-heptulosonic acid 7-phosphate synthase (aroG) and the second enzyme in the pathway, 5-dehydroquinic acid synthase (aroB) are “missing.” The remaining five genes for the shikimate pathway in these organism are present and are similar to the corresponding Escherichia coli genes. The genomic sequences of the thermophiles Pyrococcus abyssi and Thermotoga maritima contain the aroG and aroB genes. Several fungi such as Aspergillus fumigatus, Aspergillus nidulans, Saccharomyces cerevisiae, Schizosaccharomyces pombe, Pneumocystis carinii f. sp. carinii, and Neurospora crassa contain the gene aroM, a pentafunctional enzyme whose overall activity is equivalent to the combined catalytic activities of proteins expressed by aroB, D, E, K, and A genes. Two of these fungi also lack an aroG gene. A discussion of potential reasons for these missing enzymes is presented.
粟酒裂殖酵母芳香聚集体的纯化与分离[J].
DOI: 10.1002/jobm.3630230503
发表时间: 1983
期刊: Zeitschrift fur allgemeine Mikrobiologie
影响因子: --
作者:
R. Bode;G. Kunze
通讯作者: G. Kunze
DOI: 10.1101/gr.gr1653r
发表时间: 2001-06-01
期刊: GENOME RESEARCH
影响因子: 7
作者:
Lecompte, O;Ripp, R;Poch, O
通讯作者: Poch, O
DOI: 10.1016/0014-5793(76)80288-8
发表时间: 1976-01-01
期刊: FEBS LETTERS
影响因子: 3.5
作者:
BLACKMORE, PF;WILLIAMS, JF;MACLEOD, JK
通讯作者: MACLEOD, JK
从葡萄糖到芳香族化合物:莽草酸途径天然产物的最新进展
DOI: --
发表时间: 1978
期刊:
影响因子: --
作者:
B. Ganem
通讯作者: B. Ganem