SUMOstar affinity purification with nanoCLAMP SMT3-A1(Resin), batch mode from E. coli lysate


Overview
Abstract
SUMOstar affinity purification with nanoCLAMP SMT3-A1 by batch mode from over-expressing E. coli lysate.
Type
  • Affinity Chromatography
Specimen
Target
Scores
Outcome
Successful
Signal
Acceptable
Cross Reactivity
Acceptable
Background
Acceptable
Dynamic Range
Acceptable
Results
Figure

Image 

SUMOstar affinity purification

Legend 

SDS-PAGE analysis of one step purification of SUMOstar from E. coli BL21DE3 whole cell lysate using SMT3-A1(Resin) affinity resin. E. coli overexpressing SUMOstar were lysed by sonication, cleared by centrifugation, and incubated with 1.8 ml (packed vol) SMT3-A1(Resin) for 1 h at 4°C.  Beads were washed with PBS and eluted with polyol elution buffer. The eluate was buffer exchanged into Mops buffered saline, pH 7.4. Lysates and eluates were analyzed on 12% SDS-PAGE in reducing SDS sample buffer.

Lane 1: Lysate (16 ul) containing overexpressed SUMOstar.

Lane 2: Flow-through (16 ul) post-incubation on 10 ul SMT3-A1(Resin)

Lane 3: 10 ug of buffer-exchanged eluate from SMT3-A1(Resin), from a total of 6.76 mg total elution. 

Note 

This protocol was scaled up to accommodate lysate from 100 ml E. coli expression culture.