Peptide Database

Peptide NameSperm activating peptide III

Function Ontology

Reproductive biology ▸ Male reproductive modulation

Standard StatusStandard

Sequence Length9 amino acids

Chemical FormulaC40H61N9O16

DescriptionStandard

        DSDSAFLIG
    

Molecular Weight923.96 Da

Isoelectric Point (pI)4.05

Net Charge (pH 7.0)-2.24

Net Charge (pH 7.4) -2.44

Charge Density (pH 7.0) -0.2486

GRAVY Index0.43

Hydrophobic Moment 0.07

Boman Index0.29

Instability Index51.69

Aliphatic Index 97.78

Aromaticity 0.1111

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 411.18

LogP -4.80

H-bond Donors 14.0

H-bond Acceptors 14.0

Rotatable Bonds 29.0

Heavy Atoms 65.0

Ring Count 1.0

Amide Bonds 8.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0095103 VERIFIED: NO

Provenance & Taxonomy

OrganismClypeaster japonicus [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Sperm activator