Peptide Database

Peptide NameLS-Cathelicidin-BF-15-a1-2

Function Ontology

Antimicrobial

Antimicrobial ▸ Antibacterial

Toxicity / Safety ▸ Blood cell toxicity ▸ Hemolysis ▸ Hemolytic

Toxicity / Safety ▸ Cytotoxicity

Venom / Toxin ▸ General toxin ▸ Cytotoxicity

Standard StatusStandard

Sequence Length15 amino acids

Chemical FormulaC103H161N27O16

DescriptionStandard

        VKRFKKFFRKFKKFV
    

Molecular Weight2033.55 Da

Isoelectric Point (pI)12.00

Net Charge (pH 7.0)7.73

Net Charge (pH 7.4) 7.51

Charge Density (pH 7.0) 0.5152

GRAVY Index-0.67

Hydrophobic Moment 0.97

Boman Index-0.40

Instability Index9.11

Aliphatic Index 38.67

Aromaticity 0.3333

Extinction Coeff. Reduced 0.00

Extinction Coeff. Oxidized 0.00

The radar chart summarizes major physicochemical dimensions for quick comparison, while exact numerical values remain listed on the left.

Amino Acid Composition

TPSA 750.64

LogP -0.99

H-bond Donors 28.0

H-bond Acceptors 24.0

Rotatable Bonds 73.0

Heavy Atoms 146.0

Ring Count 5.0

Amide Bonds 14.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0007521 VERIFIED: YES

Provenance & Taxonomy

Organismsynthetic construct [Synthetic]

FamilyCathelicidin

Tax ID32630

Structure & Mods

Configlysine-tethered side-chain stapled peptide [Cyclic]

Chiralitynoncanonical stereochemical modification [Modified]

N-TermNone

C-TermAmidation

Other ModsThe Ⓚ (position: 2 and 6) in sequence indicates Nε-o-Ns-Nα-Fmoc-lysine before stapling. Ⓚ (2) and Ⓚ (6) are cross-linked by a (E)-but-2-enyl spacer employing the N-alkylation reaction

Bio-Activity Profile

Function

Cytotoxicity

TargetHuman embryonic kidney HEK293T cells

Activity100 μg/mL

MethodLC50

PaperHu Y, Li H, Qu R, He T, Tang X, Chen W, Li L, Bai H, Li C, Wang W, Fu G, Luo G, Xia X, Zhang J. Lysine Stapling Screening Provides Stable and Low Toxic Cationic Antimicrobial Peptides Combating Multidrug-Resistant Bacteria In Vitro and In Vivo. J Med Chem. 2022 Jan 13;65(1):579-591. PMID34968054 Evidence URLhttps://pubmed.ncbi.nlm.nih.gov/34968054/

RECORD: Rec_0010945 VERIFIED: YES

Provenance & Taxonomy

Organismsynthetic construct [Synthetic]

FamilyCathelicidin

Tax ID32630

Structure & Mods

Configbenzyl/aryl-stapled side-chain cyclic peptide [Cyclic]

Chiralitynoncanonical stereochemical modification [Modified]

N-TermNone

C-TermAmidation

Other ModsThe Ⓚ (position: 6 and 10) in sequence indicates Nε-o-Ns-Nα-Fmoc-lysine before stapling. Ⓚ (6) and Ⓚ (10) are cross-linked by 1,2-bismethylenebenzene via N-alkylation reaction

Bio-Activity Profile

Function

Antimicrobial Antibacterial

TargetPseudomonas aeruginosa

Activity8 μg/mL

MethodMIC

PaperHu Y, Li H, Qu R, He T, Tang X, Chen W, Li L, Bai H, Li C, Wang W, Fu G, Luo G, Xia X, Zhang J. Lysine Stapling Screening Provides Stable and Low Toxic Cationic Antimicrobial Peptides Combating Multidrug-Resistant Bacteria In Vitro and In Vivo. J Med Chem. 2022 Jan 13;65(1):579-591. PMID34968054 Evidence URLhttps://pubmed.ncbi.nlm.nih.gov/34968054/

RECORD: Rec_0031381 VERIFIED: YES

Provenance & Taxonomy

Organismsynthetic construct [Synthetic]

FamilyCathelicidin

Tax ID32630

Structure & Mods

Configbenzyl/aryl-stapled side-chain cyclic peptide [Cyclic]

Chiralitynoncanonical stereochemical modification [Modified]

N-TermNone

C-TermAmidation

Other ModsThe Ⓚ (position: 2 and 6) in sequence indicates Nε-o-Ns-Nα-Fmoc-lysine before stapling. Ⓚ (2) and Ⓚ (6) are cross-linked by 1,2-bismethylenebenzene via N-alkylation reaction

Bio-Activity Profile

Function

Antimicrobial Antibacterial

TargetStaphylococcus aureus (MRSA)

Activity8 μg/mL

MethodMIC

PaperHu Y, Li H, Qu R, He T, Tang X, Chen W, Li L, Bai H, Li C, Wang W, Fu G, Luo G, Xia X, Zhang J. Lysine Stapling Screening Provides Stable and Low Toxic Cationic Antimicrobial Peptides Combating Multidrug-Resistant Bacteria In Vitro and In Vivo. J Med Chem. 2022 Jan 13;65(1):579-591. PMID34968054 Evidence URLhttps://pubmed.ncbi.nlm.nih.gov/34968054/

RECORD: Rec_0035913 VERIFIED: YES

Provenance & Taxonomy

Organismsynthetic construct [Synthetic]

FamilyCathelicidin

Tax ID32630

Structure & Mods

Configbenzyl/aryl-stapled side-chain cyclic peptide [Cyclic]

Chiralitynoncanonical stereochemical modification [Modified]

N-TermNone

C-TermAmidation

Other ModsThe Ⓚ (position: 6 and 10) in sequence indicates Nε-o-Ns-Nα-Fmoc-lysine before stapling. Ⓚ (6) and Ⓚ (10) are cross-linked by 1,2-bismethylenebenzene via N-alkylation reaction

Bio-Activity Profile

Function

Antimicrobial Antibacterial

TargetStaphylococcus aureus BNCC 186335

Activity2 μg/mL

MethodMIC

PaperHu Y, Li H, Qu R, He T, Tang X, Chen W, Li L, Bai H, Li C, Wang W, Fu G, Luo G, Xia X, Zhang J. Lysine Stapling Screening Provides Stable and Low Toxic Cationic Antimicrobial Peptides Combating Multidrug-Resistant Bacteria In Vitro and In Vivo. J Med Chem. 2022 Jan 13;65(1):579-591. PMID34968054 Evidence URLhttps://pubmed.ncbi.nlm.nih.gov/34968054/

RECORD: Rec_0036591 VERIFIED: YES

Provenance & Taxonomy

Organismsynthetic construct [Synthetic]

Familycathelicidin

Tax ID32630

Structure & Mods

Configsynthetic linear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Antimicrobial Antibacterial

TargetStaphylococcus aureus BNCC 186335

Activity4 μg/mL

MethodMIC

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