Peptide Database

Peptide NameProbable insulin-like peptide 3 B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Neurological / Signaling ▸ Sleep regulation

Regulatory peptide ▸ Biological modulation

Regulatory peptide ▸ Biological regulation

Reproductive biology ▸ Reproductive modulation

Standard StatusStandard

Sequence Length19 amino acids

Chemical FormulaC96H167N25O26S3

DescriptionStandard

        TMKLCGRKLPETLSKLCVY
    

Molecular Weight2183.70 Da

Isoelectric Point (pI)9.30

Net Charge (pH 7.0)2.38

Net Charge (pH 7.4) 2.15

Charge Density (pH 7.0) 0.1251

GRAVY Index0.06

Hydrophobic Moment 0.71

Boman Index-0.03

Instability Index7.42

Aliphatic Index 97.37

Aromaticity 0.0526

Extinction Coeff. Reduced 1490.00

Extinction Coeff. Oxidized 1615.00

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

Amino Acid Composition

TPSA 836.51

LogP -6.07

H-bond Donors 32.0

H-bond Acceptors 32.0

Rotatable Bonds 74.0

Heavy Atoms 150.0

Ring Count 2.0

Amide Bonds 18.0

3D PDB MODEL

Drag to rotate. Click a residue or atom to inspect it; the selected residue is highlighted in amber in the current view mode. Use the buttons to zoom.

2D CHEMICAL STRUCTURE

Drag to move

Drag to move. Use the buttons to zoom.

RECORD: Rec_0155332 VERIFIED: YES

Provenance & Taxonomy

OrganismDrosophila melanogaster [Animal]

FamilyProbable insulin-like peptide

Tax ID7227

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Hormone Endocrine Reproductive regulator Receptor modulation Sleep regulation Wake regulation

Half-LifeMammalian: 7.2 hour; Yeast: >20 hour; E. coli: >10 hour