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Cat. No.: HY-P10684

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Polyphemusin II

Polyphemusin II is an antimicrobial peptide which can be isolated from Limulus polyphemus hemocytes. Polyphemusin II exhibits antimicrobial activities against various Gram (+)/(-) bacteria and fungi.

For research use only. We do not sell to patients.

CAS No.: 125139-68-6
Formula: C₁₀₈H₁₆₁N₃₇O₂₀S₄
Molecular Weight:2425.93

Storage:

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

Polyphemusin II Chemical Structure

CAS No.: 125139-68-6

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Use of MCE Products

Strong Fluorescence Signal / Multi-Disciplinary Applications / High Fluorescence Specificity

Biological Activity

Description

Chemical Information

CAS No. 125139-68-6
Molecular Weight 2425.93
Formula C₁₀₈H₁₆₁N₃₇O₂₀S₄
Sequence

Arg-Arg-Trp-Cys-Phe-Arg-Val-Cys-Tyr-Lys-Gly-Phe-Cys-Tyr-Arg-Lys-Cys-Arg-NH2 (Disulfide bridge: Cys4-Cys17,Cys8-Cys13)
Sequence Shortening

RRWCFRVCYKGFCYRKCR-NH2 (Disulfide bridge: Cys4-Cys17,Cys8-Cys13)
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

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

Protocols

All Signal Pathway Related

Research Protocol for Infectious Diseases
Infectious-disease experiments test how pathogens interact with host barriers, innate immune receptors, inflammatory signaling, pathogen replication, and tissue injury; pattern-recognition receptors such as TLRs, RIG-I-like receptors, NOD-like receptors, and inflammasomes detect microbial molecules and activate NF-κB, interferon, and cytokine responses. The central hypothesis is that infection severity reflects the balance between pathogen burden and host response: protective inflammation restricts pathogen growth, whereas excessive or mislocalized inflammation contributes to tissue damage and disease phenotype. Unresolved questions include which host pathways are protective versus pathogenic, why some infection models fail to translate to human disease, and which combined readouts best predict clinically relevant infection outcomes.

Purity & Documentation

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Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (258 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Handling Instructions (2659 KB)

References

[1]. Miyata T, et al. Antimicrobial peptides, isolated from horseshoe crab hemocytes, tachyplesin II, and polyphemusins I and II: chemical structures and biological activity. J Biochem. 1989 Oct;106(4):663-8. [Content Brief]

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Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

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100 mg

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