P3369
Protamine sulfate
meets USP testing specifications
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Synonym(s):
Salmine sulfate from salmon sperm, Protamine sulfate
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Agency
meets USP testing specifications
Quality Level
Assay
≥92% (chromatography)
90.0-110.0% dry basis
form
solid
mol wt
Mr 5000-10000
technique(s)
transduction: suitable
shipped in
ambient
storage temp.
2-8°C
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General description
Protamine sulfate is a cationic polypeptide having a molecular weight of 5 kDa, isolated from salmon sperm.
Application
Protamine sulfate has been used in the transduction of
- lentiviruses into human embryonic 293T cells
- shRNA into mesenchymal stem cells/marrow stromal cells (MSC)
- lenti Sca1-OCT4 plasmid into human cord blood hematopoietic progenitor CD34+ cells
Biochem/physiol Actions
Alkaline protamine binds to negatively charged heparin. Use of protamine during cardiovascular surgery sometime triggers anaphylactic reactions.
Protamine facilitates direct transfection of microbial cells, and of human cells using cationic liposomes. Protamine effectively neutralizes the anticoagulation effects of heparin.
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Regulatory Information
动植物源性产品
Certificates of Analysis (COA)
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Moosung Lee et al.
eLife, 9 (2020-12-18)
The immunological synapse (IS) is a cell-cell junction between a T cell and a professional antigen-presenting cell. Since the IS formation is a critical step for the initiation of an antigen-specific immune response, various live-cell imaging techniques, most of which
Reprogramming of Human Cord Blood CD34+ Cells into Induced MSCs
Hematopoietic Differentiation of Human Pluripotent Stem Cells, 91-101 (2015)
Meagan R Rollins et al.
Current protocols in immunology, 129(1), e97-e97 (2020-05-21)
T lymphocytes are capable of specific recognition and elimination of target cells. Physiological antigen recognition is mediated by the T cell receptor (TCR), which is an alpha beta heterodimer comprising the products of randomly rearranged V, D, and J genes.
F L Sorgi et al.
Gene therapy, 4(9), 961-968 (1998-02-12)
A polycationic peptide, protamine sulfate, USP, has been shown to be able to condense plasmid DNA efficiently for delivery into several different types of cells in vitro by several different types of cationic liposomes. The monovalent cationic liposomal formulations (DC-Chol
shRNA-mediated decreases in c-Met levels affect the differentiation potential of human mesenchymal stem cells and reduce their capacity for tissue repair
Rosova I, et al.
Tissue Engineering: Part A, 16(8), 2627-2639 (2010)
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