P4505
Protamine sulfate
powder
Synonym(s):
Clupeine
Product Name
Protamine sulfate salt from herring, Grade III, histone, free(Millon test)
biological source
fish (herring)
type
Grade III
form
powder
impurities
histone, free (Millon test)
solubility
6 M HCl: 25 mg/mL, clear, colorless to very faintly yellow
Quality Level
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Application
May be used for the removal of DNA from protein samples or for the purification of DNA binding proteins. It may be used as an alternative to polybrene in retroviral-mediated gene transfer.
Biochem/physiol Actions
Protamine in the form of solid lipid nanoparticles (SLN) promoted transfection with plasmid DNA more efficiently and with less cytotoxicity than comparable SLNs composed of Esterquat-1.
Protamine sulfate is a small cationic protein that binds and precipitates DNA. Neutralizes the anticoagulant activity of heparin. Inhibits lipoprotein lipase.
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Regulatory Information
低风险生物材料
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Moyra Lawrence et al.
Science advances, 8(7), eabj8618-eabj8618 (2022-02-17)
Platelet deficiency, known as thrombocytopenia, can cause hemorrhage and is treated with platelet transfusions. We developed a system for the production of platelet precursor cells, megakaryocytes, from pluripotent stem cells. These cultures can be maintained for >100 days, implying culture
A Bonincontro et al.
Physics in medicine and biology, 34(5), 609-616 (1989-05-01)
The complex dielectric constant of arginine and protamine from herring sperm (clupeine) and their complexes with herring sperm DNA was measured at 10 GHz in the temperature range -20 to +45 degrees C by a microwave cavity perturbation method. The
C Toniolo et al.
Biochimica et biophysica acta, 576(2), 429-439 (1979-02-26)
The three main components YI, YII, and Z of clupeine, a protamine from herring, have been purified and characterized. The conformational preferences of clupeines have been examined as a funciton of pH, temperature, added salts, and presence of structure-disrupting agents
I Saiki et al.
Japanese journal of cancer research : Gann, 81(6-7), 668-675 (1990-06-01)
We have investigated the anti-angiogenic effect of a polymeric peptide based on the Arg-Gly-Asp (RGD) core sequence of fibronectin as a monomer unit, i.e., poly(RGD), in syngeneic mice and in vitro. Single intratumoral administration of poly(RGD) on day 0, 1
Lisanne T Laagland et al.
JOR spine, 5(3), e1219-e1219 (2022-10-08)
Repopulating the degenerated intervertebral disc (IVD) with tissue-specific nucleus pulposus cells (NPCs) has already been shown to promote regeneration in various species. Yet the applicability of NPCs as cell-based therapy has been hampered by the low cell numbers that can
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