
Human CD152 (CTLA-4) is a cell surface glycoprotein expressed at low levels on activated T cells (1). CD152 is a high affinity receptor for the costimulatory molecules CD80 (B7-1) and CD86 (B7-2) and appears to function as a negative regulator of T cell activation (2, 3).
Isotype: Murine IgG1kappa
Immunogen: Stimulated human PBL’s and human CD152 Ig fusion protein
Specificity: Antibody ANC152.2/8H5 reacts with an extracellular epitope of human CTLA-4 expressed on activated T cells. It has been reported to cross react with dog (11, 12), pig, cow and cat CD152.
Functional Application: ANC152.2 blocks binding of CD152 (CTLA-4) Ig fusion protein to its CD80/CD86 receptor, and has been reported to modulate suppressive function of human T Regulatory Cells in Vitro (4). ANC152.2 can bind to intracellular CD152 in fixed permeabolized cells. Purified and F(ab‘)2 forms of this clone have been used to block proliferation and/or IL-10 production by activated T cells in various models (5, 6, 7, 8, 9) .
References:
1) T.L. Walunas, et al, (1994) Immunity 1:405-413.
2) N.J. Karandikar, et al, (1996) J Exp Med 184: 783-788.
3) A. Kitani, et al, (2000) J Immunol 165: 691-702.
4) Y. Zheng, D.M. Sansom, et al, (2004)
5) S Vendetti, M.T. DeMagistris, et al. (2008) Immunology Letters 115(1):59-69.
6) F J Ward, R N Barker, et al. (2002) Blood 1004529-4536.
7) F J Ward, R N Barker, et al. (2008) Blood 111: 680-687.
8) Wenwei Tu, D BLewis, et al. (2008) Blood 112: 2554-2562.
9. I Bellinghausen, J Saloga, et al (2003) J Allergy Clin Immunol 111(4): 862-868. PMID: 12704370
10.Yang, N., Li, J., Yang, Q. et al. Arch Virol (2018). https://doi.org/10.1007/s00705-018-3735-8
11. Tagawa M, S Takagi, et al. (Feb 2016) PLoS One 11(2): e0150030.https://doi.org/10.1371/journal.pone.0150030
12. Tagawa M, K Miyahara, et al. (July 2018) PLoS ONE 13(7): e0201222.https://doi.org/10.1371/journal. pone.0201222.
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一、首先你要明白肽是什么...........................肽是氨基酸通过酰胺键结合而成的东西.........
二、你要明白氨基酸是什么..........................氨基酸是构成蛋白质的基本单位,多种氨基酸结合为长肽链,几条长肽链再盘旋就形成了蛋白质......................
三、关于小分子肽、短肽、多肽、寡肽.......其实都是肽.......区别只是由多少个氨基酸构成而已............
所以,你的问题可以很粗暴地理解为“蛋白质对人体有没有副作用”.......
如果你营养足够的情况下,再补充这个,会导致营养过剩,从而加重身体代谢的负荷............类似就是这样子的了...........小分子肽,一般现在用于化妆品上比较多(一ye子.植物肽面膜就是这个).......小分子肽(可以简单理解为纳米胶原蛋白),这比蛋白质(也可以粗暴理解为胶原蛋白)更加容易吸收......而用在食品上,要视乎是何种小分子肽了.....大豆肽、花生肽、大米肽....不同的肽有不同的功效.......主要可以改善风味、改善吸收、增强胃肠道功能等等.......
westblot蛋白免疫印迹实验跑小分子蛋白(15kd)条带一直是波浪状,有人说是胶的问题,可同时跑了36kd蛋白,条带是直的,有人说是要恒流跑,电压不要太大,我的转膜条件是50v,50min,请教各位大神指点,万分感谢!!!
如题,之前没做过药代,老师给了一个600+Da的五肽,想测下药代动参数,看文献推荐上述两种方法,但是不知道选哪种更好,lcms前处理会不会影响小肽。
求助各位前辈,我最近在合成的化合物水溶性很好,非常好,以至于可以随便溶解在水里,它的六氟磷酸盐也可以随意溶解在水里(大于50uM),细胞成像实验显示它根本进不去细胞,求问有没有啥方法包裹一下让它进去?我搜了一下文献,感觉多数是把脂溶性特别好的东西包裹一下弄进去的,也许是搜索姿势不对没找到我需要的答案,**点拨啊!!!
求助大家,小分子药物最新专利申请情况跟踪,之前听别人说可以在一个网站可以导出这个信息。
不知哪位大侠知道,告知一下,不胜感激!

