Myelin Basic Protein(Synonyms: MHP4-14)

Myelin Basic Protein;(Synonyms: MHP4-14)

Myelin Basic Protein (MHP4-14) 是一种合成肽,包含髓鞘碱性蛋白的残基4-14,是一种非常有选择性的PKC底物 (Km=7 μM)。Myelin Basic Protein 不被环腺苷酸依赖性蛋白激酶、酪蛋白激酶 I 和 II、Ca2+/钙调素依赖性蛋白激酶II或磷酸化酶激酶磷酸化,可常规用于测定粗组织提取物中低背景的蛋白激酶C。

Myelin Basic Proteinamp;;(Synonyms: MHP4-14)

Myelin Basic Protein Chemical Structure

CAS No. : 126768-94-3

规格 是否有货
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Myelin Basic Protein 的其他形式现货产品:

Myelin Basic Protein TFA

生物活性

Myelin Basic Protein (MHP4-14), a synthetic peptide comprising residues 4-14 of myelin basic protein, is a very selective PKC substrate (Km=7 μM). Myelin Basic Protein is not phosphorylated by cyclic AMP-dependent protein kinase, casein kinases I and II, Ca2+/calmodulin-dependent protein kinase II, or phosphorylase kinase, and can be routinely used for the assay of protein kinase C with low background in the crude tissue extracts[1][2].

体外研究
(In Vitro)

Once MBP4-14 is phosphorylated, it is not dephosphorylated by okadaic acid-sensitive phosphatases (protein phosphatases 1, 2A and 3) or other protein phosphatases such as calcineurin and/or PP 2C present in hippocampal homogenates. Therefore, MBP4-14 can be used for PKC assay in crude extracts of neural tissue[2].

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

分子量

1390.59

Formula

C60H103N21O17

CAS 号

126768-94-3

Sequence

Gln-Lys-Arg-Pro-Ser-Gln-Arg-Ser-Lys-Tyr-Leu

Sequence Shortening

QKRPSQRSKYL

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]. Farrar YJ, et al. A phosphatase resistant substrate for the assay of protein kinase C in crude tissue extracts. Biochem Biophys Res Commun. 1991;180(2):694-701.

    [2]. Yasuda I, et al. A synthetic peptide substrate for selective assay of protein kinase C. Biochem Biophys Res Commun. 1990;166(3):1220-1227.