Katacalcin(Synonyms: 抗钙素 PDN 21) | Cytiva思拓凡-Whatman滤纸滤膜滤器

Katacalcin;(Synonyms: 抗钙素; PDN 21)

Katacalcin (PDN 21) 是一种有效的具有降低血钙效应的多肽激素。

Katacalcin Chemical Structure

CAS No. : 85916-47-8

规格		是否有货
100 mg	;	询价	;
250 mg	;	询价	;
500 mg	;	询价	;

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Katacalcin 的其他形式现货产品:

Katacalcin TFA

生物活性

Katacalcin (PDN 21) is a potent plasma calcium-lowering peptide^[1].

体外研究
(In Vitro)

Katacalcin is a potent plasma calcium lowering peptide. Katacalcin belongs to the calcitonin family, that causes a rapid but short-lived drop in the level of calcium and phosphate in blood by promoting the incorporation of these ions in the bones^[1]. Katacalcin (KC) belongs to a small family of polypeptides that are encoded by the calc-1 gene and also include calcitonin (CT) and procalcitonin NH2-terminal cleavage peptide (N-ProCT). Katacalcin pretreatment leads to a concentration-dependent decrease at concentrations between 1 amol/liter and 10 fmol/liter and is a more potent inhibitor of fMLP-induced chemotaxis than CT or procalcitonin (PCT). Katacalcin deactivates CD14⁺ peripheral blood mononuclear cell (PBMC) chemotaxis not only toward N-formyl-Met-Leu-Phe (fMLP) but also toward other attractants of the chemokine family (heterologous deactivation) as well as toward PCT and CT. Pretreatment of CD14⁺ PBMCs with Katacalcin also deactivates subsequent chemotaxis toward Katacalcin itself. Katacalcin elicites concentration-dependent migration of CD14⁺ PBMC at concentrations from the atomolar to the micromolar range and deactivates attractant-induced chemotaxis. Katacalcin regulates human CD14⁺ PBMC migration via signaling events involving protein kinase A-dependent cAMP pathways^[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

分子量

2436.60

Formula

C₉₇H₁₅₄N₃₄O₃₆S₂

CAS 号

85916-47-8

Sequence

Asp-Met-Ser-Ser-Asp-Leu-Glu-Arg-Asp-His-Arg-Pro-His-Val-Ser-Met-Pro-Gln-Asn-Ala-Asn

Sequence Shortening

DMSSDLERDHRPHVSMPQNAN

中文名称

钙抑肽；抗钙素

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

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]. Hillyard CJ, et al. Katacalcin: a new plasma calcium-lowering hormone. Lancet. 1983 Apr 16;1(8329):846-8.

[2]. Kaneider NC, et al. Involvement of cyclic adenosine monophosphate-dependent protein kinase A and pertussis toxin-sensitive G proteins in the migratory response of human CD14⁺ mononuclear cells tokatacalcin. J Bone Miner Res. 2002 Oct;17(10):1872-82.

Kinase Assay ^[2]	Leukocyte migration is measured using a modified 48-blind well microchemotaxis chamber equipped with 5 μm pore-sized nitrocellulose filters for CD14⁺ PBMC chemotaxis. In some experiments cells are incubated for 20 minutes with GFX (500 nM), Staurosporine (10 ng/mL), Tyrphostin-23 (10 ng/mL), Wortmannin (WTN) (10 nmol/liter), Protein kinase A inhibitor (PKI) (from 0.1 to 100 ng/mL) or Rp-cAMPS (from 100 pM to 100 μM), or CTX (1 nM) or pertussis toxin (PTX) (1 nM). For determination of Katacalcin ‘s potency to deactivate CD14⁺ PBMC chemotaxis toward fMLP, cells are incubated with Katacalcin (from 1 amol/liter to 1 μmol/liter) for 20 minutes. For control, cAMP-independent migration of CD14⁺ PBMC toward bombesin is tested in some of the experiments. After washing twice, 50 μL of a cell suspension (1×10⁶ cells/mL) is put into the upper compartment of the chemotaxis chamber and cells are allowed to migrate for 90 minutes toward peptides derived from the calc-1 gene in the lower wells. After these migration periods, the filters are dehydrated, fixed, and stained with hematoxylin and eosin. Migration depth is quantified by microscopy, measuring the distance from the surface of the filter to the leading front of three cells migration^[2]. MCE has not independently confirmed the accuracy of these methods. They are for reference only.
参考文献	[1]. Hillyard CJ, et al. Katacalcin: a new plasma calcium-lowering hormone. Lancet. 1983 Apr 16;1(8329):846-8. [2]. Kaneider NC, et al. Involvement of cyclic adenosine monophosphate-dependent protein kinase A and pertussis toxin-sensitive G proteins in the migratory response of human CD14⁺ mononuclear cells tokatacalcin. J Bone Miner Res. 2002 Oct;17(10):1872-82.

Kinase Assay
^[2]

Leukocyte migration is measured using a modified 48-blind well microchemotaxis chamber equipped with 5 μm pore-sized nitrocellulose filters for CD14⁺ PBMC chemotaxis. In some experiments cells are incubated for 20 minutes with GFX (500 nM), Staurosporine (10 ng/mL), Tyrphostin-23 (10 ng/mL), Wortmannin (WTN) (10 nmol/liter), Protein kinase A inhibitor (PKI) (from 0.1 to 100 ng/mL) or Rp-cAMPS (from 100 pM to 100 μM), or CTX (1 nM) or pertussis toxin (PTX) (1 nM). For determination of Katacalcin ‘s potency to deactivate CD14⁺ PBMC chemotaxis toward fMLP, cells are incubated with Katacalcin (from 1 amol/liter to 1 μmol/liter) for 20 minutes. For control, cAMP-independent migration of CD14⁺ PBMC toward bombesin is tested in some of the experiments. After washing twice, 50 μL of a cell suspension (1×10⁶ cells/mL) is put into the upper compartment of the chemotaxis chamber and cells are allowed to migrate for 90 minutes toward peptides derived from the calc-1 gene in the lower wells. After these migration periods, the filters are dehydrated, fixed, and stained with hematoxylin and eosin. Migration depth is quantified by microscopy, measuring the distance from the surface of the filter to the leading front of three cells migration^[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

参考文献

[1]. Hillyard CJ, et al. Katacalcin: a new plasma calcium-lowering hormone. Lancet. 1983 Apr 16;1(8329):846-8.

[2]. Kaneider NC, et al. Involvement of cyclic adenosine monophosphate-dependent protein kinase A and pertussis toxin-sensitive G proteins in the migratory response of human CD14⁺ mononuclear cells tokatacalcin. J Bone Miner Res. 2002 Oct;17(10):1872-82.