PeptideDB

st-Ht31 188425-80-1

st-Ht31 188425-80-1

CAS No.: 188425-80-1

st-Ht31 is a protein kinase A (PKA)-anchored, membrane-permeable (penetrable) peptide inhibitor. st-Ht31 induces strong
Data collection:peptidedb@qq.com

This product is for research use only, not for human use. We do not sell to patients.

st-Ht31 is a protein kinase A (PKA)-anchored, membrane-permeable (penetrable) peptide inhibitor. st-Ht31 induces strong cholesterol/phospholipid efflux. st-Ht31 completely reverses foam cell formation and restores macrophage metabolic health.

Physicochemical Properties


Molecular Formula C129H217N29O39
Molecular Weight 2798.32
Exact Mass 2797.592
CAS # 188425-80-1
PubChem CID 16143012
Appearance Typically exists as solid at room temperature
LogP 2.3
Hydrogen Bond Donor Count 37
Hydrogen Bond Acceptor Count 41
Rotatable Bond Count 103
Heavy Atom Count 197
Complexity 6160
Defined Atom Stereocenter Count 26
SMILES

CCCCCCCCCCCCCCCCCC(=O)N[C@@H](CC(=O)O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](C)C(=O)N[C@@H](C)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCNC(=N)N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CC(=O)O)C(=O)N[C@@H](C)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCC(=O)N)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](C)C(=O)N[C@@H](C)C(=O)NCC(=O)N[C@@H](C)C(=O)N[C@@H](CC1=CC=C(C=C1)O)C(=O)O

InChi Key AHVAWKAVLPRRQS-MUBBMYIHSA-N
InChi Code

InChI=1S/C129H217N29O39/c1-22-26-27-28-29-30-31-32-33-34-35-36-37-38-39-45-93(162)142-88(62-98(170)171)119(187)149-87(60-66(5)6)120(188)157-103(70(13)23-2)125(193)147-86(53-57-97(168)169)115(183)145-84(51-55-95(164)165)113(181)140-76(19)108(176)138-77(20)110(178)152-91(65-159)121(189)143-82(44-42-59-134-129(132)133)116(184)156-105(72(15)25-4)127(195)155-101(68(9)10)123(191)150-89(63-99(172)173)118(186)141-78(21)111(179)153-102(69(11)12)124(192)158-104(71(14)24-3)126(194)148-85(52-56-96(166)167)114(182)144-83(50-54-92(131)161)117(185)154-100(67(7)8)122(190)146-81(43-40-41-58-130)112(180)139-75(18)107(175)137-73(16)106(174)135-64-94(163)136-74(17)109(177)151-90(128(196)197)61-79-46-48-80(160)49-47-79/h46-49,66-78,81-91,100-105,159-160H,22-45,50-65,130H2,1-21H3,(H2,131,161)(H,135,174)(H,136,163)(H,137,175)(H,138,176)(H,139,180)(H,140,181)(H,141,186)(H,142,162)(H,143,189)(H,144,182)(H,145,183)(H,146,190)(H,147,193)(H,148,194)(H,149,187)(H,150,191)(H,151,177)(H,152,178)(H,153,179)(H,154,185)(H,155,195)(H,156,184)(H,157,188)(H,158,192)(H,164,165)(H,166,167)(H,168,169)(H,170,171)(H,172,173)(H,196,197)(H4,132,133,134)/t70-,71-,72-,73-,74-,75-,76-,77-,78-,81-,82-,83-,84-,85-,86-,87-,88-,89-,90-,91-,100-,101-,102-,103-,104-,105-/m0/s1
Chemical Name

(4S)-5-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S,3S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S,3S)-1-[[(2S)-1-[[(2S)-5-amino-1-[[(2S)-1-[[(2S)-6-amino-1-[[(2S)-1-[[(2S)-1-[[2-[[(2S)-1-[[(1S)-1-carboxy-2-(4-hydroxyphenyl)ethyl]amino]-1-oxopropan-2-yl]amino]-2-oxoethyl]amino]-1-oxopropan-2-yl]amino]-1-oxopropan-2-yl]amino]-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1,5-dioxopentan-2-yl]amino]-4-carboxy-1-oxobutan-2-yl]amino]-3-methyl-1-oxopentan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopropan-2-yl]amino]-3-carboxy-1-oxopropan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-3-methyl-1-oxopentan-2-yl]amino]-5-carbamimidamido-1-oxopentan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-1-oxopropan-2-yl]amino]-1-oxopropan-2-yl]amino]-4-[[(2S)-4-carboxy-2-[[(2S,3S)-2-[[(2S)-2-[[(2S)-3-carboxy-2-(octadecanoylamino)propanoyl]amino]-4-methylpentanoyl]amino]-3-methylpentanoyl]amino]butanoyl]amino]-5-oxopentanoic acid
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

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


ln Vitro In BHK cells and RAW macrophages, st-Ht31 (5 µM; 2 h) increases cholesterol/phospholipid efflux [1]. Macrophage metabolic health is restored and foam cell production is reversed by st-Ht31 (10µM; 24 h) [1]. In HEK293T cells, cAMP suppression of PMA-induced ERK1/2 activation is eliminated by st-Ht31 (20 µM; 20 min) [2].
Cell Assay Western Blot Analysis[2]
Cell Types: HEK293T cells
Tested Concentrations: 20 µM
Incubation Duration: 20 min
Experimental Results: Ablished the cAMP inhibition of PMA-induced ERK1/2 activation.
References

[1]. Ht31, a protein kinase A anchoring inhibitor, induces robust cholesterol efflux and reverses macrophage foam cell formation through ATP-binding cassette transporter A1. J Biol Chem. 2011 Feb 4;286(5):3370-8.

[2]. A-Kinase Anchoring Protein 4 (AKAP4) is an ERK1/2 substrate and a switch molecule between cAMP/PKA and PKC/ERK1/2 in human spermatozoa. Sci Rep. 2016 Nov 30;6:37922.


Solubility Data


Solubility (In Vitro) May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo) Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300 :Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300:Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)

Oral Formulations Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders

Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 0.3574 mL 1.7868 mL 3.5736 mL
5 mM 0.0715 mL 0.3574 mL 0.7147 mL
10 mM 0.0357 mL 0.1787 mL 0.3574 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.