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P9386

Sigma-Aldrich

Poly-L-histidine

mol wt 5,000-25,000

Sinónimos:

L-Histidine homopolymer

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About This Item

Número de CAS:
26062-48-6
MDL number:
MFCD00166382
UNSPSC Code:
12352209
PubChem Substance ID:
24899031
NACRES:
NA.26

form

powder or solid

Quality Level

200

mol wt

5,000-25,000

color

white to light yellow

application(s)

cell analysis

storage temp.

−20°C

InChI

1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/t5-/m0/s1

InChI key

HNDVDQJCIGZPNO-YFKPBYRVSA-N

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General description

Poly-L-histidine is an amphoteric compound. The imidazole ring in its structure enables protonation−deprotonation.

Application

Poly-L-histidine has been used:
  • as a polycation for the dispersion of multi-wall carbon nanotubes (MWCNTs)
  • as a polyionic compound to investigate its ability to rupture extracellular enveloped virus membrane
  • in screening its anti-prion activity in cell based and in vivo anti-prion assay

Biochem/physiol Actions

Poly-L-histidine (Phis) copolymers are biocompatible, pH responsive and are less toxic. It exhibits endolysosomal escape funcationality. The copolymer of Phis with poly(ethylene glycol)−poly(d,l-lactide) (PEG-PLA) is effective in delivering doxorubicin. pH sensitive poly(l-histidine) copolymer micelles have application in delivering anticancer drugs in acidic microenvironment.

Analysis Note

Molecular weight by MALLS.

Other Notes

For additional technical information on polyamino acids please visit the Polyamino acid FAQ resource.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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L-Histidina European Pharmacopoeia (EP) Reference Standard

H0750000

L-Histidina

Boc-His(Trt)-OH ≥98.0% (TLC)

Sigma-Aldrich

15449

Boc-His(Trt)-OH

Anti-polihistidina monoclonal clone HIS-1, purified from hybridoma cell culture

Sigma-Aldrich

A5588

Anti-polihistidina monoclonal

Lys-Lys-Lys-Lys ≥95% (TLC)

Sigma-Aldrich

L9026

Lys-Lys-Lys-Lys

Yuehua Cong et al.
Bioconjugate chemistry, 23(2), 248-263 (2012-01-17)
The efficacy of protein-based medicines can be compromised by their rapid clearance from the blood circulatory system. Achieving optimal pharmacokinetics is a key requirement for the successful development of safe protein-based medicines. Protein PEGylation is a clinically proven strategy to
Yi-Fang Zeng et al.
Biomaterials, 33(36), 9239-9245 (2012-10-03)
Loading of viral vectors in synthetic polymers is a promising strategy for overcoming hurdles associated with viral gene delivery. For enhanced gene expression at a specific site, gene transfer by using hydrogels represents a versatile approach. In this study, adeno-associated
Hongbo Zhang et al.
Drug metabolism and disposition: the biological fate of chemicals, 40(10), 1935-1944 (2012-07-12)
Many laboratories use recombinant UDP-glucuronosyltransferases (UGTs), expressed in baculovirus-infected insect cells, for drug glucuronidation studies. We have infected Sf9 insect cells with increasing amounts of recombinant baculovirus, encoding either UGT1A9 or UGT2B7, and measured both glucuronidation activity and immunodetectable UGT
Electrochemical determination of ascorbic acid and paracetamol in pharmaceutical formulations using a glassy carbon electrode modified with multi-wall carbon nanotubes dispersed in polyhistidine
Dalmasso PR, et al.
Sensors and Actuators B, Chemical, 173(5), 732-736 (2012)
Rong Liu et al.
International journal of nanomedicine, 7, 4433-4446 (2012-08-28)
Two methoxyl poly(ethylene glycol)-poly(L-histidine)-poly(L-lactide) (mPEG-PH-PLLA) triblock copolymers with different poly(L-histidine) chain lengths were synthesized. The morphology and biocompatibility of these self-assembled nanoparticles was investigated. Doxorubicin, an antitumor drug, was trapped in the nanoparticles to explore their drug-release behavior. The drug-loaded
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