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Porcine dynorphin A(1-13) 72957-38-1

Porcine dynorphin A(1-13) 72957-38-1

CAS No.: 72957-38-1

Porcine dynorphin A (1-13) is a potent endogenous κ opioid receptor agonist (activator) that relieves pain at physiolog
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Porcine dynorphin A (1-13) is a potent endogenous κ opioid receptor agonist (activator) that relieves pain at physiological concentrations.

Physicochemical Properties


Molecular Formula C75H126N24O15
Molecular Weight 1603.95474
Exact Mass 1602.983
CAS # 72957-38-1
PubChem CID 25075996
Appearance White to off-white solid powder
Density 1.4±0.1 g/cm3
Index of Refraction 1.645
LogP -0.5
Hydrogen Bond Donor Count 22
Hydrogen Bond Acceptor Count 21
Rotatable Bond Count 54
Heavy Atom Count 114
Complexity 3160
Defined Atom Stereocenter Count 12
SMILES

CCC(C(NC(C(NC(C(NC(C(NC(C(NC(CNC(CNC(C(N)CC1=CC=C(O)C=C1)=O)=O)=O)CC2=CC=CC=C2)=O)CC(C)C)=O)CCCNC(N)=N)=O)CCCNC(N)=N)=O)C(NC(C(N3CCCC3C(NC(C(NC(C(NC(C(O)=O)CCCCN)=O)CC(C)C)=O)CCCCN)=O)=O)CCCNC(N)=N)=O)C

InChi Key OVVIBUHLQIYUEU-IWIISZHXSA-N
InChi Code

InChI=1S/C75H126N24O15/c1-7-45(6)61(70(111)94-53(25-17-35-87-75(83)84)71(112)99-36-18-26-58(99)69(110)93-50(21-11-13-31-76)64(105)96-56(38-44(4)5)67(108)95-54(72(113)114)22-12-14-32-77)98-65(106)52(24-16-34-86-74(81)82)91-63(104)51(23-15-33-85-73(79)80)92-66(107)55(37-43(2)3)97-68(109)57(40-46-19-9-8-10-20-46)90-60(102)42-88-59(101)41-89-62(103)49(78)39-47-27-29-48(100)30-28-47/h8-10,19-20,27-30,43-45,49-58,61,100H,7,11-18,21-26,31-42,76-78H2,1-6H3,(H,88,101)(H,89,103)(H,90,102)(H,91,104)(H,92,107)(H,93,110)(H,94,111)(H,95,108)(H,96,105)(H,97,109)(H,98,106)(H,113,114)(H4,79,80,85)(H4,81,82,86)(H4,83,84,87)/t45-,49-,50-,51-,52-,53-,54-,55-,56-,57-,58-,61-/m0/s1
Chemical Name

(2S)-6-amino-2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-1-[(2S)-2-[[(2S,3S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[2-[[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]amino]acetyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-3-methylpentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]pyrrolidine-2-carbonyl]amino]hexanoyl]amino]-4-methylpentanoyl]amino]hexanoic acid
Synonyms

Porcine dynorphin A(1-13); Dynorphin A Porcine Fragment 1-13
HS Tariff Code 2934.99.9001
Storage

Powder-20°C 3 years

4°C 2 years

In solvent -80°C 6 months

-20°C 1 month

Note: Please store this product in a sealed and protected environment, avoid exposure to moisture.
Shipping Condition Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity


Targets κ Opioid Receptor/KOR
ln Vitro Dynorphin A (1-13) exposure (33 μM) causes a discernible destruction of neuronal morphology at 16 hours, and a substantial loss of neuronal viability at 4 hours. Individual neurons' acute [Ca2+]i increases in response to dynorphin A (1–13) exposure are comparable to those observed following acute NMDA treatment.Over time, dynorphin A (1–13) (100 μM) exposure consistently results in a notable loss of neurons[1].
ln Vivo Dynorphin A (1-13) exposure (33 μM) resulted in a significant loss of neuronal viability at 4 hours and a significant disruption of neuronal morphology at 16 hours. Exposure to dynorphin A (1-13) results in a dramatic increase in [Ca2+]i in single neurons, similar to the increase seen with acute NMDA treatment. Sustained exposure to dynorphin A (1-13) (100 μM) results in significant neuronal loss over time [1].
References

[1]. Dynorphin A (1-13) neurotoxicity in vitro: opioid and non-opioid mechanisms in mouse spinal cord neurons. Exp Neurol. 1999 Dec;160(2):361-75.


Solubility Data


Solubility (In Vitro) H2O: ≥ 60 mg/mL (~37.4 mM)
Solubility (In Vivo) Solubility in Formulation 1: 100 mg/mL (62.35 mM) in PBS (add these co-solvents sequentially from left to right, and one by one), clear solution; with sonication.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 0.6235 mL 3.1173 mL 6.2346 mL
5 mM 0.1247 mL 0.6235 mL 1.2469 mL
10 mM 0.0623 mL 0.3117 mL 0.6235 mL
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.