DESCRIPTION:NSD1 is a SET-domain lysine methyltransferase that exerts regulatory effects primarily through dimethylation of H3K36, NSD1 may also act as an H4K20 and NF-kB p65 (K218, K221) methyltransferase. While H3K36me2 is considered a gene-activating mark, NSD1 contains distinct domains that interact with liganded and unliganded nuclear receptors and can act as either a coactivator or corepressor. Chromosomal translocations resulting in the expression of a nucleoporin-98 (NUP98)-NSD1 fusion protein are implicated in the development of a subset of acute myeloid leukemias (AMLs) with a particularly poor prognosis, an oncogenic effect which requires NSD1’s H3K36 methyltransferase activity. A variety of results suggest a complex and context-dependent role for NSD1 in oncogenesis, including the elevated cancer risk associated with NSD1 haploinsufficiency in Sotos syndrome, NSD1’s tumor-suppressive effects in neuroblastoma and the fact that it is downregulated in primary prostate tumors (recurrent cancers), while upregulated in metastatic prostate tumors.
ACCESSION #: NM_022455
Uniprot Link
INCLUDES AMINO ACIDS: 1538-2696 (end)
TAG(S): N-terminal His-tag
MW: 130.9 kDa
EXPRESSION SYSTEM: Insect cell/Baculovirus
SUPPLIED AS: Solution of purified recombinant protein in 50 mM Tris/HCl pH 7.5, 500 mM NaCl, 1 mM TCEP, 10% glycerol (v/v).
STORAGE:
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Substantial Discounts Available on Bulk Quantities
We also offer assay services NSD1.
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ReactionBiology详细产品列表：货号产品价格（美元）HMT-11-376ASH1L(His)Methyltransferase325DMT-21-124DNMT1450DMT-21-125DNMT3aMethyltransferase450DMT-21-126 DNMT3b450HMT-11-101DOT1LMethyltransferase395HMT-25-115 EZH1Complex450HMT-25-114EZH2Complex799HMT-25-173EZH2-Y641FComplex799HMT-11-102G9aMethyltransferase(GST)(aa786-1210)299HMT-11-245G9aMethyltransferase(His)(aa913-1193)299HMT-12-104G9a/GLPComplexMethyltransferase325HMT-11-103GLPMethyltransferaseProtein299HMT-15-105MLL1Complex499HMT-15-106 MLL2Complex499HMT-15-107MLL3Complex499HMT-15-108 MLL4Complex499MT-11-359NNMT(GST)(NicotinamideN-Methyltransferase)299MT-11-358NNMT(His)(NicotinamideN-Methyltransferase)299HMT-11-319NRMT1(GST)325HMT-21-139NSD1Methyltransferase450HMT-21-1380NSD2(His)Methyltransferase450HMT-21-122 NSD2Methyltransferase550HMT-11-377NSD2SET(His)325HMT-21-159NSD2-E1099KMethyltransferase599HMT-11-378NSD2-E1099K-SET(His)325HMT-21-181NSD2-T1150AMethyltransferase450HMT-11-379NSD2-T1150A-SET(His)325HMT-11-132 NSD3Methyltransferase325HMT-21-348PRDM2Methyltransferase325HMT-21-152PRDM9Methyltransferase450HMT-11-119PRMT1Methyltransferase325HMT-11-113PRMT3Methyltransferase325HMT-11-120PRMT4Methyltransferase399HMT-21-172PRMT5Methyltransferase450HMT-22-434PRMT5(C449S)/MEP50799HMT-22-148PRMT5/MEP50Complex799HMT-11-121PRMT6Methyltransferase(GST)325HMT-21-380PRMT6Methyltransferase(His)325HMT-21-382PRMT7(His)450HMT-11-135PRMT8Methyltransferase325MT-11-356s-COMT(His)(SolubleCatechol-O-Methyltransferase)299MT-11-357s-COMT(V108M)(His)(SolubleCatechol-O-Methyltransferase）299HMT-15-116 SET1AComplex(5-subunits)499HMT-15-117SET1BComplex(5-subunits)499HMT-11-133SET7/9Methyltransferase299HMT-11-476SET8(GST)299HMT-11-118 SET8Methyltransferase299HMT-11-128 SETD2(GST)Methyltransferase299HMT-11-129SETD2(His)Methyltransferase299HMT-11-110SMYD2Methyltransferase325HMT-11-111SUV39H1Methyltransferase299HMT-11-418SUV39H2(GST)Methyltransferase299HMT-11-112SUV39H2(His)Methyltransferase299HMT-21-149SUV420H1-tv1Methyltransferase450HMT-21-150SUV420H1-tv2Methyltransferase450HMT-21-349SUV420H2Methyltransferase325HMT-14-109WRAD2375HMT-14-438(H3.3-H4)2Tetramer325HMT-35-435CoreHistones(Chicken)250HMT-11-184Fibrillarin(GST)325HMT-11-183Fibrillarin(His)325HMT-11-137GST-GAR299HMT-12-316H2A/H2Bdimers325HMT-11-180HistoneH1.050HMT-11-146HistoneH2A50HMT-11-147HistoneH2B50HMT-11-134 HistoneH3.350HMT-35-179Nucleosomes(ChickenMono/Di)280HMT-35-182Nucleosomes(ChickenOligo/PolyH5Enriched)280
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调节至最适合温度（一般是37度），合适的酸碱度时，酶的活性最高
ELISA实验，操作的时候，加入底物，溶液变成蓝色，孵育一段时间后，加入终止液，变成黄色，测吸光值。然后，当天忘记扔板子了，第二天想到去扔的时候，所有孔都变成无色透明的了！！！为什么会褪色？？？是试剂有问题？还是因为室温太高环境影响？如果是试剂问题那我之前做的结果还能信么？
1，底物DNA上没有该限制酶的识别、切断位点。特别是一些经过重组等处理的DNA，碱基易发生缺失、变化等。
2，限制酶识别位点上的A或C被甲基化。部分限制酶对识别位点中的碱基是否被甲基化比较敏感，从而无法切断该位点。
3，底物不纯。如果底物DNA中有限制酶阻害物质，回影响限制酶的酶切作用。在此种情况下，底物DNA须重新进行精制。
4，限制酶的识别、切断位点在底物DNA的高级构造中所处的位置，对酶切反应也有一定的影响，例如,限制酶NaeI在切断pBR322DNA时,就有着非常难以切断的部位。
5，限制性内切酶本身无活性或低活性
