Peptide Database

Peptide NamePyrokinin-tryptopyrokinin PK-tPK [3-20]

Function Ontology

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length18 amino acids

Chemical FormulaC91H138N26O25S

DescriptionStandard

        LSSHGQKEASPMWFGPRI
    

Molecular Weight2028.29 Da

Isoelectric Point (pI)8.76

Net Charge (pH 7.0)0.85

Net Charge (pH 7.4) 0.59

Charge Density (pH 7.0) 0.0472

GRAVY Index-0.62

Hydrophobic Moment 0.32

Boman Index0.02

Instability Index30.42

Aliphatic Index 48.89

Aromaticity 0.1111

Extinction Coeff. Reduced 5500.00

Extinction Coeff. Oxidized 5500.00

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

Amino Acid Composition

TPSA 813.91

LogP -7.79

H-bond Donors 28.0

H-bond Acceptors 28.0

Rotatable Bonds 63.0

Heavy Atoms 143.0

Ring Count 6.0

Amide Bonds 18.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0311212 VERIFIED: NO

Provenance & Taxonomy

OrganismAnthonomus grandis [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Neuropeptide