Peptide Database

Peptide NameBombyxin B-2 homolog B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Regulatory peptide ▸ Biological regulation

Standard StatusStandard

Sequence Length27 amino acids

Chemical FormulaC129H209N39O41S3

DescriptionStandard

        GRGARRYCGRVLADTLAYLCPEMEEVE
    

Molecular Weight3058.47 Da

Isoelectric Point (pI)5.16

Net Charge (pH 7.0)-1.24

Net Charge (pH 7.4) -1.49

Charge Density (pH 7.0) -0.0461

GRAVY Index-0.35

Hydrophobic Moment 0.75

Boman Index-0.13

Instability Index38.70

Aliphatic Index 75.93

Aromaticity 0.0741

Extinction Coeff. Reduced 2980.00

Extinction Coeff. Oxidized 3105.00

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

Amino Acid Composition

TPSA 1305.92

LogP -12.21

H-bond Donors 49.0

H-bond Acceptors 43.0

Rotatable Bonds 100.0

Heavy Atoms 212.0

Ring Count 3.0

Amide Bonds 26.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0039026 VERIFIED: YES

Provenance & Taxonomy

OrganismSamia cynthia [Animal]

FamilyBombyxin B-2 homolog

Tax ID7127

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Hormone Endocrine Growth regulation Development regulation

Targetpeptide responsible for activation of prothoracic gland

Half-LifeMammalian: 30 hour; Yeast: >20 hour; E. coli: >10 hour