24小时热门版块排行榜    

查看: 1314  |  回复: 2

左眼

金虫 (小有名气)

[求助] native page marker和还原剂问题 已有1人参与

1. 想知道不同条件下蛋白聚集情况。计算等电点在5.6,应该选择什么样的marker? 因为蛋白在SDS-PAGE上显示的是单体的分子量,可以用还原加热变性的蛋白做marker吗?
2. 蛋白本身易聚集,所以在纯化过程中一直有还原剂。这样可以跑native胶吗?native page能耐受的还原剂是什么剂量?
回复此楼
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

zhouxfd

木虫 (正式写手)

【答案】应助回帖

感谢参与,应助指数 +1
1escription

The NativeMark™ Unstained Protein Standard is a ready-to-use protein standard designed for molecular weight estimation of proteins using native gel electrophoresis. Features of this marker:

• Versatile—recommended for use with Novex® NativePAGE™ Bis-Tris, gradient Tris-Glycine, or NuPAGE® Novex® Tris-Acetate gels
• Comprehensive—contains markers with a wide range of high molecular weights, providing 8 protein bands in the range of 20–1,200 kDa
• Convenient—no need to add sample buffer, just load and run
• Compatible—can be visualized using Coomassie®, silver, or fluorescent stains after electrophoresis, or with Ponceau S, Coomassie®, or other membrane stains after Western transfer

Electrophoresis under native (nondenaturing) conditions maintains the native protein conformation, cohesion of subunits, and biological activity. During native electrophoresis, proteins are separated based on their charge to mass ratios.

2: 10-20mM DTT 应该没问题
2楼2017-07-19 12:48:40
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

vv一笑

新虫 (初入文坛)

引用回帖:
2楼: Originally posted by zhouxfd at 2017-07-19 12:48:40
1escription

The NativeMark™ Unstained Protein Standard is a ready-to-use protein standard designed for molecular weight estimation of proteins using native gel electrophoresis. Features of ...

我想要分子量小一点的Marker,也是用于Native-PAGE实验,大概10-100kDa的,知道哪里能订购吗
3楼2018-06-29 15:19:28
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 左眼 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[基金申请] 应该是93bebmhtak前后十一个字符比较关键 +4 Lanmanbaby 2026-08-09 4/200 2026-08-09 14:19 by 超级海虾
[基金申请] fileCode有新解读? +10 Tide man 2026-08-08 18/900 2026-08-09 12:55 by 仁砚薪传
[基金申请] 2026国自然放榜时间 +3 布布和一二 2026-08-08 3/150 2026-08-08 18:15 by Lightingo
[基金申请] 好奇怪的filecode +3 布布和一二 2026-08-08 4/200 2026-08-08 17:46 by zhanghaozhu
[基金申请] 售SCI一区T0P文章,我:8.O.55.1.O.54,科目齐全,可+急 +3 qTvzQBRAHjCi 2026-08-07 5/250 2026-08-08 17:02 by oEVWOejN9taj
[考博] 售SCI一区T0P文章,我:8O.55.1.O.54,科目全,可伽急 +3 Vi50GxzrFcSG 2026-08-07 4/200 2026-08-08 16:27 by oEVWOejN9taj
[博后之家] 售SCI一区文章,我:8.O.551.O.5.4,科目全,可伽急 +3 Vi50GxzrFcSG 2026-08-07 4/200 2026-08-08 16:02 by oEVWOejN9taj
[硕博家园] 售SCI一区文章,我:8.O.55.1.O.54,科目齐全,可伽急 +4 HEQlVqMTIA7d 2026-08-07 6/300 2026-08-08 14:47 by oEVWOejN9taj
[基金申请] 售SCI一区文章,我:8.O.55.1.O.54,科目齐全,可伽急 +3 HEQlVqMTIA7d 2026-08-07 4/200 2026-08-08 14:27 by oEVWOejN9taj
[教师之家] 售SCI一区T0P文章,我:8.O.55.1.O54,科目全,可伽急 +4 HEQlVqMTIA7d 2026-08-07 5/250 2026-08-08 14:27 by oEVWOejN9taj
[论文投稿] 售SCI一区T0P文章,我:8O.55.1.O.5.4,科目齐全,可+急 +3 HEQlVqMTIA7d 2026-08-07 5/250 2026-08-08 14:22 by oEVWOejN9taj
[硕博家园] 售SCI-T0P文章,我:8O.5.5.1.O.54,科目齐全,可+急 +3 Vi50GxzrFcSG 2026-08-07 6/300 2026-08-08 10:19 by 3OOjAIS77qg2
[考博] 售SCI一区文章,我:8.O.55.1.O.54,科目齐全,可伽急 +3 HEQlVqMTIA7d 2026-08-07 3/150 2026-08-08 03:47 by 6vVgjDL4CnGu
[基金申请] 基金中了 +14 laoda193707 2026-08-06 14/700 2026-08-08 00:23 by 实验小白ha
[基金申请] 化学口download_prp&fileCode的固定段好像这几天一直没变,有变的大神么? +3 Tide man 2026-08-07 4/200 2026-08-07 22:39 by Tide man
[基金申请] filecode与中标关系的预测 +3 布布和一二 2026-08-07 3/150 2026-08-07 15:09 by gltch
[基金申请] filecode +14 等待解的谜 2026-08-06 19/950 2026-08-07 12:20 by wlwhappy
[基金申请] filecode +8 布布和一二 2026-08-06 11/550 2026-08-06 20:41 by tangpu318
[基金申请] 影响面上的因素 +8 布布和一二 2026-08-05 11/550 2026-08-06 10:41 by 宝贝虫子
[基金申请] 好消息?这个有何含义??? +8 Tide man 2026-08-05 10/500 2026-08-05 16:14 by xmuxiaoyu
信息提示
请填处理意见