Peptide Database

Peptide NameSomatostatin

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Standard StatusStandard

Sequence Length14 amino acids

Chemical FormulaC81H114N18O18S3

DescriptionStandard

        APCKNFFWKTFTMC
    

Molecular Weight1724.08 Da

Isoelectric Point (pI)8.91

Net Charge (pH 7.0)1.77

Net Charge (pH 7.4) 1.55

Charge Density (pH 7.0) 0.1267

GRAVY Index0.14

Hydrophobic Moment 0.31

Boman Index0.18

Instability Index15.74

Aliphatic Index 7.14

Aromaticity 0.2857

Extinction Coeff. Reduced 5500.00

Extinction Coeff. Oxidized 5625.00

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

Amino Acid Composition

TPSA 584.21

LogP -2.81

H-bond Donors 22.0

H-bond Acceptors 23.0

Rotatable Bonds 51.0

Heavy Atoms 120.0

Ring Count 6.0

Amide Bonds 14.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0200639 VERIFIED: NO

Provenance & Taxonomy

OrganismRana ridibunda [Animal]

FamilySomatostatin

Structure & Mods

Configlinear disulfide-stabilized peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide3-14

Bio-Activity Profile

Function

Hormone

RECORD: Rec_0304302 VERIFIED: YES

Provenance & Taxonomy

OrganismPelophylax ridibundus [Animal]

Familysomatostatin

Tax ID8406

Structure & Mods

Configdisulfide-constrained peptide [Cyclic]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide3-14

Bio-Activity Profile

Function

Hormone Endocrine

Half-LifeMammalian: 4.4 hour; Yeast: >20 hour; E. coli: >10 hour