InsB (9-23)(Synonyms: Insulin B chain (9-23))

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InsB (9-23);(Synonyms: Insulin B chain (9-23))

InsB (9-23) (Insulin B chain (9-23)) 是一种胰岛素 B 链肽，可与 II 类组织相容性复合体 (MHC) 等位基因 I-Ag7 结合。InsB (9-23) 有潜力用于很多自身免疫类疾病的研究，如I型糖尿病。

InsB (9-23)amp;;(Synonyms: Insulin B chain (9-23))

InsB (9-23) Chemical Structure

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生物活性

InsB (9-23) is an insulin B-chain peptide that binds to a class II histocompatibility complex (MHC) allele called I-Ag7. InsB (9-23) can be used to treat a number of autoimmune related diseases like Type 1 diabetes[1].

分子量

1645.90

Formula

C72H116N20O22S1
Sequence Shortening

SHLVEALYLVCGERG
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]. Georgia Fousteri, et al. InsB:9-23 peptide-based immunotherapy for type 1 diabetes; the immunization frequency and the state of the disease can alter the efficacy. Immunology. 2008 Apr.