negative mutant 中文意思是什麼
negative mutant
解釋
負突變株-
Interestingly, inhibition of p38 mapk activation ( but not erk activation ) by its inhibitors or by expression of a dominant negative mutant of p38 mapk could effectively block the chemotactic effect of ( - arrestin2
P38mapk上游激酶ask1的顯性失活突變體也可以阻斷- arrestin2對趨化的增強作用。這說明是p38mapk而不是erk信號通路與- arrestin2對趨化的增強作用相關。 -
The materials in this study were arabidopsis thaliana. ( wt ) and its mutants including ethylene over producer mutant ( eto1 - 1 ), ethylene insensitive root mutant ( eir1 - 1 ) and ethylene insensitive mutant ( etr1 - 3 ). from the phenotypes of 12 - d - old seedlings of arabidopsis wt and mutants, the root gravitropism was obviously enhanced in etol - 1, but diminished in eir1 - 1 and etr1 - 3, compared with wt. the shoot negative gravitropism was also diminished in etiolated seedlings of etr1 - 3
以擬南芥的eth過量產生型突變體（ etol - 1 ） ，根對eth不敏感型突變體（ eirl - 1 ，地上部對eth響應） ， eth不敏感型突變體（ etrl - 3 ，地上部和根均對eth不敏感）及其野生型（ wt ， columbia生態型）為實驗材料，利用根的向重力性反應為模式，分析了其中eth對auxin效應的調控及其原因。 -
Rlean meat percentage is one of the most important economic traints in pig breeding programs. myostatin is a negative regulator of skeletal muscle growth. null or low activity of myostatin, individual muscle of mutant amimals would show a large and widespread increase in skeletal mass. myostatin null animals have significantly larger diameter or more quantity of fiber skeletal muscle. the phenotype was termed double muscling. in order to probe the relation between myostatin and high lean meat rate and plump - hipped trait, we sythesized the c ' 80 amino acids coding sequence of porcine myostatin and costructed the cloning and expressing vector of it
肌生成抑制素（ myostatin ，即mstn ）是近幾年來（ mcpherrona . c等， 1997 ）發現的骨骼肌生長的負調控因子，它主要在骨骼肌中表達。其活性的喪失，會引起動物肌肉的過度發育，肌纖維直徑變大或肌纖維數增加，表現為雙肌癥狀。肌生成抑制素研究的突破將對豬、肉雞、肉牛等畜禽生產性能的提高具有特別重要的意義。 -
It is show the mutant consists of a nuclei binding site and dna - binding domain is enough to negative regulation. a report plasmid pcat that we constructed has a cat gene expressed by a cmv early promoter
（ 465 1079氨基酸段）對sv40啟動子明顯的抑制活性，因為它只包含dna結合域和核結合位點，說明發揮轉錄抑制功能的關鍵是ie180的dna結合域。
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