Peptide Database

Peptide NameSPamide 1 2

Function Ontology

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length31 amino acids

Chemical FormulaC144H227N39O53S2

DescriptionStandard

        TCQIEATGECRSEEAAEVADKYHYLLSSKSP
    

Molecular Weight3416.70 Da

Isoelectric Point (pI)4.70

Net Charge (pH 7.0)-3.52

Net Charge (pH 7.4) -3.81

Charge Density (pH 7.0) -0.1137

GRAVY Index-0.67

Hydrophobic Moment 0.44

Boman Index-0.11

Instability Index94.39

Aliphatic Index 60.00

Aromaticity 0.0645

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 1498.88

LogP -18.01

H-bond Donors 54.0

H-bond Acceptors 53.0

Rotatable Bonds 113.0

Heavy Atoms 238.0

Ring Count 4.0

Amide Bonds 31.0

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_0332637 VERIFIED: NO

Provenance & Taxonomy

OrganismSepia officinalis [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Neuropeptide