Peptide Database

Peptide NameMating pheromone Er-1/Er-3

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Regulatory peptide ▸ Chemical communication ▸ Pheromone peptide

Standard StatusStandard

Sequence Length40 amino acids

Chemical FormulaC183H276N46O67S7

DescriptionStandard

        DACEQAAIQCVESACESLCTEGEDRTGCYMYIYSNCPPYV
    

Molecular Weight4416.87 Da

Isoelectric Point (pI)4.05

Net Charge (pH 7.0)-6.29

Net Charge (pH 7.4) -6.59

Charge Density (pH 7.0) -0.1572

GRAVY Index-0.18

Hydrophobic Moment 0.47

Boman Index0.05

Instability Index80.10

Aliphatic Index 53.75

Aromaticity 0.1000

Extinction Coeff. Reduced 5960.00

Extinction Coeff. Oxidized 6335.00

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

Amino Acid Composition

TPSA 1814.98

LogP -21.08

H-bond Donors 67.0

H-bond Acceptors 68.0

Rotatable Bonds 138.0

Heavy Atoms 303.0

Ring Count 6.0

Amide Bonds 42.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0117307 VERIFIED: YES

Provenance & Taxonomy

OrganismEuplotes raikovi [Protist]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide3-19; 10-36; 15-28

Bio-Activity Profile

Function

Hormone

RECORD: Rec_0292052 VERIFIED: NO

Provenance & Taxonomy

OrganismEuplotes raikovi [Animal]

Structure & Mods

Configdisulfide-constrained cyclic peptide [Cyclic]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide3-19; 10-36; 15-28

Bio-Activity Profile

Function

Pheromone