Peptide Database

Peptide NameBombyxin A-5 B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Regulatory peptide ▸ Biological regulation

Standard StatusStandard

Sequence Length28 amino acids

Chemical FormulaC136H205N41O42S2

DescriptionStandard

        QQPQTVHTYCGHHLARTLADLCWEAGVD
    

Molecular Weight3150.46 Da

Isoelectric Point (pI)5.76

Net Charge (pH 7.0)-1.99

Net Charge (pH 7.4) -2.38

Charge Density (pH 7.0) -0.0711

GRAVY Index-0.41

Hydrophobic Moment 0.62

Boman Index0.03

Instability Index27.64

Aliphatic Index 73.21

Aromaticity 0.0714

Extinction Coeff. Reduced 6990.00

Extinction Coeff. Oxidized 7115.00

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

Amino Acid Composition

TPSA 1326.05

LogP -13.79

H-bond Donors 47.0

H-bond Acceptors 45.0

Rotatable Bonds 97.0

Heavy Atoms 221.0

Ring Count 7.0

Amide Bonds 30.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0050698 VERIFIED: YES

Provenance & Taxonomy

OrganismBombyx mori [Animal]

FamilyBombyxin

Tax ID7091

Structure & Mods

Configlinear peptide [Linear]

Chiralitynoncanonical stereochemical modification [Modified]

N-TermPyroglutamate

Bio-Activity Profile

Function

Hormone Endocrine Growth regulation Development regulation

Targetpeptide responsible for activation of prothoracic gland

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

RECORD: Rec_0166832 VERIFIED: YES