IYPTNGYTR

发表于由

IYPTNGYTR;

IYPTNGYTR，一种脱酰胺敏感的特征肽，是曲妥珠单抗 (Trastuzumab) 的脱酰胺产物。 IYPTNGYTR 可用于监测体内曲妥珠单抗的代谢。

IYPTNGYTRamp;;

IYPTNGYTR Chemical Structure

CAS No. : 1431957-72-0

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

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IYPTNGYTR 的其他形式现货产品:

IYPTNGYTR acetate

生物活性

IYPTNGYTR, a deamidation-sensitive signature peptide, is a deamidation product of Trastuzumab. IYPTNGYTR can be used to monitor in vivo Trastuzumab metabolism[1].

体外研究
(In Vitro)

IYPTNGYTR is deamidated at pH 7.5 and above, with a higher deamidation rate when the pH increases[1].

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

1084.18

Formula

C49H73N13O15
CAS 号

1431957-72-0
Sequence Shortening

IYPTNGYTR
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]. Bults P, et, al. LC-MS/MS-Based Monitoring of In Vivo Protein Biotransformation: Quantitative Determination of Trastuzumab and Its Deamidation Products in Human Plasma. Anal Chem. 2016 Feb 2;88(3):1871-7.