将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中,再用生理盐水定容至 10 mL,完全溶解,澄清透明
*以上所有助溶剂都可在 MCE 网站选购。
参考文献
[1]. Yu M, et al. Pharmacokinetic parameters of three active ingredients hederacoside C, hederacoside D, and ɑ-hederin in Hedera helix in rats. J Sep Sci. 2016 Sep;39(17):3292-301
[1]. PRODUCTION, et al. MELANOSTATIN, A NEW MELANIN SYNTHESIS INHIBITOR. The Journal of Antibiotics. 1991.
[2]. J A Valentijn, et al. Melanostatin (NPY) inhibited electrical activity in frog melanotrophs through modulation of K+, Na+ and Ca2+ currents. J Physiol . 1994 Mar 1;475(2):185-95.
Room temperature in continental US; may vary elsewhere.
储存方式
Powder
-80deg;C
2 years
-20deg;C
1 year
In solvent
-80deg;C
6 months
-20deg;C
1 month
Solvent Solubility
In Vitro:;
H2O
Peptide Solubility and Storage Guidelines:
1.;;Calculate the length of the peptide.
2.;;Calculate the overall charge of the entire peptide according to the following table:
;
Contents
Assign value
Acidic amino acid
Asp (D), Glu (E), and the C-terminal -COOH.
-1
Basic amino acid
Arg (R), Lys (K), His (H), and the N-terminal -NH2
+1
Neutral amino acid
Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q)
0
3.;;Recommended solution:
Overall charge of peptide
Details
Negative (lt;0)
1.;;Try to dissolve the peptide in water first. 2.;;If water fails, add NH4OH (lt;50 μL). 3.;;If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide.
Positive (gt;0)
1.;;Try to dissolve the peptide in water first. 2.;;If water fails, try dissolving the peptide in a 10%-30% acetic acid solution. 3.;;If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO.
Zero (=0)
1.;;Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first. 2.;;For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration.
参考文献
[1]. Takashi Mizuma, et al. Uptake of Cyclic Dipeptide by PEPT1 in Caco-2 Cells: Phenolic Hydroxyl Group of Substrate Enhances Affinity for PEPT1. J Pharm Pharmacol. 2002 Sep;54(9):1293-6.
Rimtoregtide is a polypeptide compound which significantly reduces the increase in the levels of amylase and lipase in the blood caused by acute pancreatitis. Rimtoregtide has the potential for the research of pancreatitis and acute pancreatitis (extracted from patent WO2018205233A1).
分子量
1500.61
Formula
C65H101N19O22
CAS 号
2251722-35-5
运输条件
Room temperature in continental US; may vary elsewhere.
Litorin, an amphibian bombesin peptide derivative, is an bombesin receptor agonist. Litorin stimulates the contraction of smooth muscle, stimulates gastrin, gastric acid, and pancreatic secretion, and suppresses the nutriment in vivo[1][2].
体外研究 (In Vitro)
99mTc-Litorin is developed for non-invasive imaging of tumors with overexpressed gastrin-releasing peptide receptors (GRP-R)[1]. [D-Phe1,Leu8,9]Litorin inhibits binding of 125I-[Tyr4] BN to murine Swiss 3T3 cells with a Ki of 5.1 nM[2]. Litorin stimulates 3H-Thymidine incorporation in murine Swiss 3T3 cells with an EC50 of 2.3 nM[2].
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
体内研究 (In Vivo)
Litorin stimulates the contraction of smooth muscle, stimulates gastrin, gastric acid, and pancreatic secretion, and suppresses the nutriment in in vivo experiments[2].
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
分子量
1085.24
Formula
C51H68N14O11S
CAS 号
55749-97-8
Sequence Shortening
{Pyr}QWAVGHFM
中文名称
雨滨蛙肽
运输条件
Room temperature in continental US; may vary elsewhere.
将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中,再用生理盐水定容至 10 mL,完全溶解,澄清透明
*以上所有助溶剂都可在 MCE 网站选购。
参考文献
[1]. Kam Leung. 99mTc-pGlu-Gln-Trp-Ala-Val-Gly-His-Phe-Met-NH2. Molecular Imaging and Contrast Agent Database (MICAD). 2007 Oct 1.
[2]. J M Siegfried, et al. Effects of bombesin and gastrin-releasing peptide on human bronchial epithelial cells from a series of donors: individual variation and modulation by bombesin analogs. Anat Rec. 1993 May;236(1):241-7.
将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中,再用生理盐水定容至 10 mL,完全溶解,澄清透明
*以上所有助溶剂都可在 MCE 网站选购。
参考文献
[1]. HiroshiMorita, et al. Segetalins B, C and D, three new cyclic peptides from Vaccaria segetalis. Tetrahedron Volume 51, Issue 21, 22 May 1995, Pages 6003-6014.
[2]. PascalSonnet, et al. First synthesis of segetalins B and G: two cyclopentapeptides with estrogen-like activity. Tetrahedron Letters. Volume 44, Issue 16, 14 April 2003, Pages 3293-3296
Kyotorphin is an endogenou neuroactive dipeptide with analgesic properties. Kyotorphin possesses anti-inflammatory and antimicrobial activity. Kyotorphin levels in cerebro-spinal fluid correlate negatively with the progression of neurodegeneration in Alzheimer’s Disease patients[1].
IC50 Target
Human Endogenous Metabolite
;
体外研究 (In Vitro)
The analgesic effect of kyotorphin is determined by means of the hot-plate test, with an ED50 value of 5.3 μg/animal (15.7 nmole/animal)[1].
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
分子量
337.37
Formula
C15H23N5O4
CAS 号
70904-56-2
中文名称
京都肽
运输条件
Room temperature in continental US; may vary elsewhere.
[1]. Takagi H, et al. Morphine-like analgesia by a new dipeptide, L-tyrosyl-L-arginine (Kyotorphin) and its analogue. Eur J Pharmacol. 1979;55(1):109-111.
Cyclosporin D 是 Cyclosporin A 的代谢产物,是一种弱免疫抑制剂。Cyclosporin D 作为 Cyclosporin A 定量的内标,Cyclosporin A 是一种免疫抑制药物,通过抑制钙调磷酸酶和钙调磷酸酶依赖性转录因子激活的T细胞核因子 (NFAc) 来抑制 T 细胞活化。
Cyclosporin D Chemical Structure
CAS No. : 63775-96-2
规格
价格
是否有货
数量
5 mg
¥2300
In-stock
10 mg
¥3700
In-stock
50 mg
;
询价
;
100 mg
;
询价
;
* Please select Quantity before adding items.
Cyclosporin D 相关产品
bull;相关化合物库:
Natural Product Library Plus
Bioactive Compound Library Plus
Immunology/Inflammation Compound Library
Natural Product Library
Macrocyclic Compound Library
Microbial Metabolite Library
Peptide Library
生物活性
Cyclosporin D, a metabolite of Cyclosporin A, is a weak immunosuppressant. Cyclosporin D is used as internal standard for quantification of Cyclosporin A[1][2]. Cyclosporin A is a potent immunosuppressant drug, suppress T cell activation by inhibiting calcineurin and the calcineurin-dependent transcription factors nuclear factor of activated T cells (NFAc)[3].
体外研究 (In Vitro)
Cyclosporine D inhibits Ca2+/calmodulin dependent EF-2 phosphorylation in vitro[1].
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
体内研究 (In Vivo)
Cyclosporine D is a potent inhibitor in vivo of phorbol ester TPA-induced biological effects in mouse skin[1].
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Room temperature in continental US; may vary elsewhere.
储存方式
Powder
-80deg;C
2 years
-20deg;C
1 year
In solvent
-80deg;C
6 months
-20deg;C
1 month
参考文献
[1]. Gschwendt M, et al. The weak immunosuppressant cyclosporine D as well as the immunologically inactive cyclosporine H are potent inhibitors in vivo of phorbol ester TPA-induced biological effects in mouse skin and of Ca2+/calmodulin dependent EF-2 phosphorylation in vitro. Biochem Biophys Res Commun. 1988 Jan 29;150(2):545-51.
[2]. Kaiser P, et al. A new approach for the determination of immunosuppressive drugs using HPLC-MS/MS and Cs+ adducts. Ger Med Sci. 2006 Jan 18;4:Doc01.
[3]. Minguillón J, et al. Concentrations of cyclosporin A and FK506 that inhibit IL-2 induction in human T cells do not affect TGF-beta1 biosynthesis, whereas higher doses of cyclosporin A trigger apoptosis and release of preformed TGF-beta1. J Leukoc Biol. 2005 May;77(5):748-58. Epub 2005 Feb 16.
Peptide T是源自HIV-1 gp120的V2区的八肽。 Peptide T是 CD4 受体的配体,可阻止 HIV 与CD4受体结合。
Peptide T Chemical Structure
CAS No. : 106362-32-7
规格
价格
是否有货
数量
1 mg
¥1000
In-stock
5 mg
¥2900
In-stock
10 mg
¥4900
In-stock
50 mg
;
询价
;
100 mg
;
询价
;
* Please select Quantity before adding items.
生物活性
Peptide T is an octapeptide from the V2 region of HIV-1 gp120. Peptide T is a ligand for the CD4 receptor and prevents binding of HIV to the CD4 receptor.
IC50 Target
CD4, HIV[1]
体外研究 (In Vitro)
Peptide T acts to block viral entry as it inhibits in the MAGI cell assay and blocks infection in the luciferase reporter assay using HIV virions pseudotyped with ADA envelope. Peptide T selectively inhibits HIV replication using chemokine receptor CCR5 compared to CXC4[2]. Peptide T at 10-8 M induces IL-10 production by the human Th2 cell line and PBMC. Also peptide T at 10-9 M concentration significantly inhibits IFN-g production by PBMC[3].
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
体内研究 (In Vivo)
Peptide T is administered subcutaneously at different doses and phases of the experimental autoimmune encephalomyelitis (EAE) disease, but Peptide T neither prevents nor ameliorates EAE[4].
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Clinical Trial
分子量
857.86
Formula
C35H55N9O16
CAS 号
106362-32-7
Sequence
Ala-Ser-Thr-Thr-Thr-Asn-Tyr-Thr
Sequence Shortening
ASTTTNYT
运输条件
Room temperature in continental US; may vary elsewhere.
储存方式
Powder
-80deg;C
2 years
-20deg;C
1 year
In solvent
-80deg;C
6 months
-20deg;C
1 month
参考文献
[1]. Ruff MR, et al. Peptide T[4-8] is core HIV envelope sequence required for CD4 receptor attachment. Lancet. 1987 Sep 26;2(8561):751.
[2]. Ruff MR, et al. Peptide T inhibits HIV-1 infection mediated by the chemokine receptor-5 (CCR5). Antiviral Res. 2001 Oct;52(1):63-75.
[3]. Raychaudhuri SP, et al. Immunomodulatory effects of peptide T on Th 1/Th 2 cytokines. Int J Immunopharmacol. 1999 Sep;21(9):609-15.
[4]. Sáez-Torres I, et al. Peptide T does not ameliorate experimental autoimmune encephalomyelitis (EAE) in Lewis rats. Clin Exp Immunol. 2000 Jul;121(1):151-6.
Cell Assay [3]
Peripheral blood mononuclear cells are stimulated with PHA (5 mg/mL) along with various concentrations of peptide T (10-6-10-12 M) for 48 h at 37°C. Supernatants are collected and frozen until analysis[3].
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration [4]
Rats[4]
Peptide T (125, 250, 500, 800 μg) is randomly given subcutaneously to Female Lewis rats aged 6-8 weeks in the hind foot flanks in a final volume of 0.2 mL. Control animals receive the same volume of saline alone[4].
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
参考文献
[1]. Ruff MR, et al. Peptide T[4-8] is core HIV envelope sequence required for CD4 receptor attachment. Lancet. 1987 Sep 26;2(8561):751.
[2]. Ruff MR, et al. Peptide T inhibits HIV-1 infection mediated by the chemokine receptor-5 (CCR5). Antiviral Res. 2001 Oct;52(1):63-75.
[3]. Raychaudhuri SP, et al. Immunomodulatory effects of peptide T on Th 1/Th 2 cytokines. Int J Immunopharmacol. 1999 Sep;21(9):609-15.
[4]. Sáez-Torres I, et al. Peptide T does not ameliorate experimental autoimmune encephalomyelitis (EAE) in Lewis rats. Clin Exp Immunol. 2000 Jul;121(1):151-6.