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MSP01

Sigma-Aldrich

Membrane Scaffold Protein 1D1

recombinant, expressed in E. coli, buffered aqueous solution

Synonym(s):

Membrane Scaffold Protein 1D1, MSP1D1, MSP1T2

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About This Item

UNSPSC Code:
12352200
NACRES:
NA.26

recombinant

expressed in E. coli

Assay

≥90% (SDS-GE)

form

buffered aqueous solution

mol wt

24,661.6 Da

solubility

water: soluble

shipped in

ambient

storage temp.

−20°C

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General description

Research area: Cell signaling. Nanodiscs are non-covalent structures that contain a phospholipidbilayer and a membrane scaffold protein (MSP), a genetically engineeredprotein, that mimics the function of Apolipoprotein A-1 (ApoA-1). The firstMSP, MSP1, was engineered with its sequence based on the sequence of A-1, butwithout the globular N-terminal domain of native A-1. The Membrane ScaffoldProtein 1D1 (MSP1D1) variant of MSP1 deletes the first 11 amino acids in theHelix 1 portion (referred to as “H0.5” in the accompanying figure) of theoriginal MSP1 sequence.It consists of an N-terminal histidine-tagged protein with a tobaccoetch virus (TEV) protease cleavage site that is present between the proteinsequence and histidine-tag.Nano-disctechnology is an approach that allows aqueous soluble membrane proteins in anative-like bilayer environment that enables the membrane proteins to remainactive and stable.

Application

Nanodisc soluble lipid bilayer systems have proven to be a widely applicable means for rendering membrane proteins soluble in aqueous solutions in a native-like bilayer environment where they remain monodisperse and active. The critical component of nanodiscs is the encircling amphipathic helical protein belt (membrane scaffold protein).
The nanodisc system has been employed to incorporate a wide variety of proteins including GPCRs, P450s, bacteriorhodopsin, coagulation factors, cholera toxin, TAR receptor and aromatase.
For guidelines on the use of this and other MSP′s to prepare Nanodiscs, please visit our Protocols for Membrane Scaffold Proteins and Nanodisc Formation page.

Biochem/physiol Actions

MSP1D1 can self-assembleinto discoidal nanoparticles known as nano-discs. These nano-discs may be used inthe field of medicine, biotechnology, and membrane protein studies.
Generates Nanodiscs ~9.7 nm in diameter

Legal Information

Nanodisc technology, and many of its uses, are covered by the following patents held by the University of Illinois.
  • 7,691,414 Membrane scaffold proteins
  • 7,662,410 Membrane scaffold proteins and embedded membrane proteins
  • 7,622,437 Tissue factor compositions and methods
  • 7,592,008 Membrane scaffold proteins
  • 7,575,763 Membrane scaffold proteins and tethered membrane proteins
  • 7,083,958 Membrane scaffold proteins
  • 7,048,949 Membrane scaffold proteins
Nanodisc technology, and many of its uses, are covered by the following patents held by the University of Illinois.
  • 7,691,414 Membrane scaffold proteins
  • 7,662,410 Membrane scaffold proteins and embedded membrane proteins
  • 7,622,437 Tissue factor compositions and methods
  • 7,592,008 Membrane scaffold proteins
  • 7,575,763 Membrane scaffold proteins and tethered membrane proteins
  • 7,083,958 Membrane scaffold proteins
  • 7,048,949 Membrane scaffold proteins

Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Christopher I Cazzonelli et al.
eLife, 9 (2020-02-01)
Carotenoids are a core plastid component and yet their regulatory function during plastid biogenesis remains enigmatic. A unique carotenoid biosynthesis mutant, carotenoid chloroplast regulation 2 (ccr2), that has no prolamellar body (PLB) and normal PROTOCHLOROPHYLLIDE OXIDOREDUCTASE (POR) levels, was used
Benjamin J Cole et al.
PLoS biology, 15(9), e2002860-e2002860 (2017-09-25)
Diverse soil-resident bacteria can contribute to plant growth and health, but the molecular mechanisms enabling them to effectively colonize their plant hosts remain poorly understood. We used randomly barcoded transposon mutagenesis sequencing (RB-TnSeq) in Pseudomonas simiae, a model root-colonizing bacterium
Yan Bao et al.
Autophagy, 14(9), 1562-1573 (2018-06-27)
Macroautophagy/autophagy is a conserved process in eukaryotes that contributes to cell survival in response to stress. Previously, we found that endoplasmic reticulum (ER) stress induces autophagy in plants via a pathway dependent upon AT5G24360/IRE1B (INOSITOL REQUIRING 1-1), an ER membrane-anchored
Ping Wang et al.
Autophagy, 16(1), 123-139 (2019-03-27)
Autophagy is a conserved catabolic process in eukaryotes that contributes to cell survival in response to multiple stresses and is important for organism fitness. In Arabidopsis thaliana, the core machinery of autophagy is well defined, but its transcriptional regulation is

Protocols

Protocols for Membrane Scaffold Proteins and Nanodisc Formation

Protocols for Membrane Scaffold Proteins and Nanodisc Formation

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