サイバーグリーン

Multi tool use
サイバーグリーン
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IUPAC名
N',N'-dimethyl-N-[4-[(E)-(3-methyl-1,3-benzothiazol-2-ylidene)methyl]-1-phenylquinolin-1-ium-2-yl]-N-propylpropane-1,3-diamine
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識別情報
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CAS登録番号
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163795-75-3
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PubChem
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10436340
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特性
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分子式
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C32H37N4S+
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モル質量
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509.73 g·mol−1
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溶解度
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DMSOに可溶
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特記なき場合、データは常温 (25 °C)・常圧 (100 kPa) におけるものである。
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SYBR Green Iの蛍光励起スペクトル(青)と発光スペクトル(緑)
サイバーグリーン (SG、SYBR Green)は分子生物学で核酸の染色に用いられる非対称のシアニン系色素である[1]。化学式はC32H37N4S+であり、CAS登録番号は[163795-75-3]である。
二重らせんを組んでいるDNAと特異的に結合する。DNAと結合することで青色光 (λ = 488 nm) を吸収し、緑色光 (λ = 522 nm) の蛍光を発するようになる。このため核酸染色色素として用いられ、強い発癌性物質として知られる臭化エチジウムの代替物質とすることができる。しかしながら、DNA結合能があるため決して無害というわけではない。なお臭化エチジウムとサイバーグリーンを用いた、物質の変異原性を評価するエームズ試験も行われている[2]。
代表的な誘導体
- SYBR Green I
- SYBR Green II
- SYBR Gold
- YO (Oxazole Yellow)
- TO (Thiazole Orange)
- PG (PicoGreen)
脚注
^ Zipper H, Brunner H, Bernhagen J, Vitzthum F, (2004), “Investigations on DNA intercalation and surface binding by SYBR Green I, its structure determination and methodological implications”, Nucleic Acids Res. 32 (12): e103, doi:10.1093/nar/gnh101, PMC 484200, PMID 15249599, http://www.ncbi.nlm.nih.gov/pmc/articles/PMC484200/
^ Singer VL, Lawlor TE, Yue S (1999), “Comparison of SYBR® Green I nucleic acid gel stain mutagenicity and ethidium bromide mutagenicity in the Salmonella/mammalian microsome reverse mutation assay (Ames test)”, Mutat. Res. 439 (1): 37–47, doi:10.1016/S1383-5718(98)00172-7, PMID 10029672
関連項目
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