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Key Documents

P4005

Sigma-Aldrich

Protamine

solid

Synonyme(s) :

Protamine

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About This Item

Numéro CAS:
9012-00-4
Numéro CE :
232-726-0
Numéro MDL:
MFCD00132089
Code UNSPSC :
12352202
Nomenclature NACRES :
NA.77

product name

Protamine from salmon, Grade IV, Histone, free(Millon test)

Source biologique

fish (salmon)

Niveau de qualité

200

Type

Grade IV

Forme

solid

Impuretés

Histone, free (Millon test)

Solubilité

H2O: soluble, clear to slightly hazy, colorless to faintly yellow

Température de stockage

−20°C

Description générale

Protamines are proteins rich in cysteine and arginine. It possesses many phosphorylation sites. Salmon fish contains around 15 genes encoding protamine. It is found to be localized to the sperm head.

Application

Protamine from salmon has been used to avoid in vitro AT complex formation in samples from dogs pre-treated with heparin. It has also been used to study the influences of external potential on adsorption of various proteins to a metal surface.

Actions biochimiques/physiologiques

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.
Protamines are found to displace histones in DNA during spermatogenesis in animals and plants. Protamine is useful as a heparin neutralizer during heart surgery, dialysis and in many other clinical procedures.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Adsorption characteristics of various proteins on a metal surface in the presence of an external electric potential
Htwe EE, et al.
Colloids and Surfaces, B: Biointerfaces, 262-268 (2018)
Intravascular inhibition of factor VIIa and the analogue NN1731 by antithrombin
Petersen LC, et al.
British Journal of Haematology, 152(1), 99-107 (2011)
Ryan B McMillan et al.
Biophysical journal, 120(12), 2521-2531 (2021-05-24)
DNA looping plays an important role in cells in both regulating and protecting the genome. Often, studies of looping focus on looping by prokaryotic transcription factors like lac repressor or by structural maintenance of chromosomes proteins such as condensin. Here
Alicia Roque et al.
Nucleic acids research, 32(20), 6111-6119 (2004-11-25)
Histone H1 preferentially binds and aggregates scaffold-associated regions (SARs) via the numerous homopolymeric oligo(dA).oligo(dT) tracts present within these sequences. Here we show that the mammalian somatic subtypes H1a,b,c,d,e and H1 degrees and the male germline-specific subtype H1t, all preferentially bind
Obinna A Ukogu et al.
Nucleic acids research, 48(11), 6108-6119 (2020-05-12)
Protamine proteins dramatically condense DNA in sperm to almost crystalline packing levels. Here, we measure the first step in the in vitro pathway, the folding of DNA into a single loop. Current models for DNA loop formation are one-step, all-or-nothing
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