Peptide Database

Peptide NameSomatostatin-28

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Standard StatusStandard

Sequence Length28 amino acids

Chemical FormulaC144H219N41O40S2

DescriptionStandard

        SVDPPNNIPLRERKAGCKNFYWKGFTSC
    

Molecular Weight3228.66 Da

Isoelectric Point (pI)9.30

Net Charge (pH 7.0)2.44

Net Charge (pH 7.4) 2.20

Charge Density (pH 7.0) 0.0872

GRAVY Index-0.84

Hydrophobic Moment 0.36

Boman Index-0.16

Instability Index43.88

Aliphatic Index 41.79

Aromaticity 0.1429

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 1325.09

LogP -13.70

H-bond Donors 47.0

H-bond Acceptors 45.0

Rotatable Bonds 101.0

Heavy Atoms 227.0

Ring Count 8.0

Amide Bonds 30.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0202071 VERIFIED: NO

Provenance & Taxonomy

OrganismCottus scorpius [Animal]

FamilySomatostatin

Structure & Mods

Configdisulfide-constrained cyclic peptide [Cyclic]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide17-28

Bio-Activity Profile

Function

Hormone

RECORD: Rec_0213448 VERIFIED: YES

Provenance & Taxonomy

OrganismMyoxocephalus scorpius [Animal]

Familysomatostatin

Tax ID8097

Structure & Mods

Configdisulfide-constrained peptide [Cyclic]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide17-28

Bio-Activity Profile

Function

Hormone Endocrine

Half-LifeMammalian: 1.9 hour; Yeast: >20 hour; E. coli: >10 hour