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cytochrome n.【生物學】細胞色素。

cytogenesis

Analysis of the sequence variation of cytochrome b gene indicated that there is no evidence of insertions or deletions , i . e . , they are all of identical length of 1143 bp in all the sequences of cytochrome b gene . further , the sequences can be fully translated into amino acid using chicken mitochondrial codon without nonsense mutations or intervening stop codons . the 1143 bp cytochrome b alignment contained 416 variable sites , of which 306 were parsimony informative sites with the strongest variable in third codon positions and less variable in first and second codon positions 細胞色素b基因序列變異分析表明: 1 )雁形目鳥類細胞色素b基因全序列長度一致,無插入和缺失:對照雞線粒體密碼子系統全序列能全部翻譯成氨基酸序列,無無義突變,全序列內部無終止密碼子; 2 )序列比對后1143加,含416個核著酸變異位點, 306個簡約信息位點,其中處于密碼子第三位的變異最大,第一位和第二位堿基的變異相對較小。

Among avian orders , the anseriformes ( screamers and waterfowls ) are a morphologically and biologically diverse group containing ca . 150 species distributed worldwide except antarctica . this paper will review the phylogeny of anseriformes firstly and then discuss the molecular phylogeny of anseriformes based on the genetic variation of mitochondrial 12s rrna gene and cytochrome b gene respectively 本文首先對雁形目鳥類的系統發生研究進行了綜述,然后分別基于雁形目鳥類線粒體dna12srrna基因和細胞色素b基因全序列的遺傳變異分析,探討了雁形目鳥類分子系統發生。

Cytochrome p450 functions as the monooxygenase . p450s are involved in physiologically important processes including steroid metabolism , drug deactivation , procarcinogen activation , fatty acid metabolism , xenobiotic detoxification and wildly distributed in animal , plant and low eukaryotic organism 細胞色素p450具有加單氧酶的作用,并能參與機體解毒、甾體激素的合成、脂肪酸代謝等重要的生理反應,并廣泛分布于動物、植物和低等真核生物中。

Toxicology : glutathione is a key substrate for the cytochrome p450 metabolic pathway , which is taxed daily , not only by a variety of prescription and non - prescription drugs , but also by a host of environmental toxins including heavy metals and many by - products of cigarette smoke and fuel exhaust 毒理學:谷胱甘肽是細胞色素p450代謝途徑的關鍵基質,每天都被除了各種的處方和非處方藥品外還有包括重金屬、抽煙副產物及排氣等許多的環境毒物所消耗。

New york ( reuters health ) dec 19 - carriers of a polymorphism of the cytochrome p450 enzyme are at higher risk of miscarriage in the first trimester of pregnancy , karolinska university investigators report in the november issue of fertility and sterility 紐約(路透社健康版) 12月19日? ?卡羅琳斯卡大學的研究者在11月號的《生育與不育》上撰文指出,細胞色素p450酶多態性攜帶者妊娠早期流產的風險要大一些。

The term “ cytochrome p450 “ first appeared in literature in 1962 . it was a microsomal membrane - bound hemoprotein without known physiological functions at that time and was characterized by a unique 450nm optical absorption peak of its carbon monoxide - bound form 細胞色素p450這一術語最早于1962年被用于描述一種結合微粒體膜的未知其功能的膜蛋白,因其在450nm處有一特征吸收峰而得名。

3 . the sequence variation of mitochondria ! cytochrome b gene and phylogenetic relationships of anseriformes were studied based on the complete cytochrome b gene sequences of 19 species combined with 4 species got from genbank 3 、研究測定雁形目鳥類19f mtdna細胞色素b基因全序列,結合genbank中的4個物種,分析了雁形目鳥類細胞色素b基因的序列變異及其分子系統發生。

The role of cytochrome oxidase i gene and its fragments on phylogenetic reconstruction of 4 lepidostomadon it is well known that the phylogenetic trees reconstructed from different genes for the same set of organisms are often different 二、線粒體col序列不同區段在4種鱗石蛾系統樹重建中的作用將coi序列按其堿基位點分成第430一779 、第780一1179和第1180一1569位

Flavonoid - 3 ' , 5 ' - hydroxylase ( f3 ' , 5 ' h ) corresponding to the genetic loci hfl and hf2 , a member of the cytochrome p450 family , is the key enzyme in the anthocyanin biosynthesis , which is generally required for blue or purple flowers 本研究以紫藍色矮牽牛基因組dna為模板,利用pcr技術獲得了兩個擴增產物,分別將其克隆至pgem - teasyvector上,進行了全序列分析。

Molecular systematics of partial species belonging to 5 subfamilies of miridae are investigated in this study by using esterase isozyme ( est ) and cytochrome b ( cyt b ) gene in mitochondrial dna as molecular marks 運用酯酶同工酶和線粒體dna中編碼細胞色素b蛋白質的基因cytb作為分子標記,對盲蝽科miridae的5個亞科的部分種類進行了分子系統學研究。

4 . genomic dna was extracted from some animal products provided by nanjing customs . partial mitochrondrial dna cytochrome b ( cyt b ) gene was amplified and sequenced 對南京海關送檢的部分動物產品進行基因組dna提取, mtdnacytb基因的中文摘要pcr擴增和序列測定。

Atmc4 - overexpression in sos2 mutant resulted in enhanced activity of cytochrome oxidase . the transgenic plants showed higher salt tolerance than sos2 而超表達atmca基因sos2突變體植株中,細胞色素氧化酶的活性得到提高,并且轉基因植株對鹽的耐受性也提高。

Advanced studies stated that cytochrome oxidation system participated in the opening and the aroma releasing of jasmine flower by adding respiratory inhibitors 呼吸抑制劑實驗結果表明,細胞色素氧化系統參與了呼吸躍變的控制和香氣的釋放。

Influences of hyperbaric oxygenation therapy on cytochrome oxidase and nitric oxide synthase in retina of rats with experimentally elevated intraocular pressure 高壓氧對實驗性高眼壓鼠視網膜細胞色素氧化酶和一氧化氮合酶的影響

These results indicated mitochondrial aaa protease play key role under salt stess through increasing the activity of cytochrome oxiedse 這表明線粒體aaa蛋白酶參與調控細胞色素氧化酶活性,從而提高植株對鹽脅迫的適應性。

Cytochrome p450 ( p450 ) is a heme enzyme , whose co complex gives soret absorption at 450 nm in its optical absorption spectrum 細胞色素p450是一類能與co結合,形成的復合物在450nm附近具有最大吸收峰的血紅蛋白的總稱。

In nature , the majority of metalloporphyrins are conjugated to proteins to form a number of very important molecules , such as the cytochromes 在自然界中,大多數金屬卟啉與蛋白質結合形成許多重要的分子,如細胞色素。

The mitochondrial dma cytochrome b gene was sequenced from 32 siluriforms which are belonging to 22 genera and 10 families 本研究通過pcr技術獲得了鲇形目10科22屬32種魚類線粒體dna細胞色素b基因1138bp全序列。

It is also found in cytochromes , which are important components of the clectron - transport chains of respiration and photosynthesis 鐵也存在在細胞色素中,是呼吸作用和光合作用中電子傳遞鏈的重要組成部分。