Peptide Database

Peptide NameDuctus ejaculatorius peptide 99B

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Regulatory peptide ▸ Biological modulation

Standard StatusStandard

Sequence Length31 amino acids

Chemical FormulaC160H250N52O50S2

DescriptionStandard

        QDRNDTEWIQSQKDREKWCRLNLGPYLGGRC
    

Molecular Weight3766.15 Da

Isoelectric Point (pI)8.03

Net Charge (pH 7.0)0.75

Net Charge (pH 7.4) 0.50

Charge Density (pH 7.0) 0.0241

GRAVY Index-1.53

Hydrophobic Moment 0.37

Boman Index-0.42

Instability Index35.89

Aliphatic Index 50.32

Aromaticity 0.0968

Extinction Coeff. Reduced 12490.00

Extinction Coeff. Oxidized 12615.00

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

Amino Acid Composition

TPSA 1721.39

LogP -18.83

H-bond Donors 62.0

H-bond Acceptors 53.0

Rotatable Bonds 127.0

Heavy Atoms 264.0

Ring Count 6.0

Amide Bonds 35.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0092059 VERIFIED: YES

Provenance & Taxonomy

OrganismDrosophila melanogaster [Animal]

FamilyDuctus ejaculatorius peptide 99B

Tax ID7227

Structure & Mods

Configdisulfide-constrained peptide [Cyclic]

Chiralitynoncanonical stereochemical modification [Modified]

N-TermPyroglutamate

Disulfide19-31

Other Mods4:N-linked (GlcNAc...) asparagine

Bio-Activity Profile

Function

Hormone Endocrine Receptor modulation

Half-LifeMammalian: 0.8 hour; Yeast: 10 min; E. coli: >10 hour