Peptide Database

Peptide NameBombyxin A-1 B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Regulatory peptide ▸ Biological regulation

Standard StatusStandard

Sequence Length28 amino acids

Chemical FormulaC138H215N45O41S2

DescriptionStandard

        QQPQRVHTYCGRHLARTLADLCWEAGVD
    

Molecular Weight3224.59 Da

Isoelectric Point (pI)6.91

Net Charge (pH 7.0)-0.08

Net Charge (pH 7.4) -0.42

Charge Density (pH 7.0) -0.0028

GRAVY Index-0.60

Hydrophobic Moment 0.76

Boman Index-0.13

Instability Index34.52

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 1400.94

LogP -14.61

H-bond Donors 51.0

H-bond Acceptors 45.0

Rotatable Bonds 102.0

Heavy Atoms 226.0

Ring Count 6.0

Amide Bonds 30.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0339864 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_0379024 VERIFIED: YES