Peptide Database

Peptide NamePyrokinin 1 a/b 4

Function Ontology

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length17 amino acids

Chemical FormulaC77H116N24O26S

DescriptionStandard

        SGTTSSNNNGMWFGPRL
    

Molecular Weight1825.95 Da

Isoelectric Point (pI)9.47

Net Charge (pH 7.0)0.46

Net Charge (pH 7.4) 0.25

Charge Density (pH 7.0) 0.0271

GRAVY Index-0.82

Hydrophobic Moment 0.32

Boman Index-0.01

Instability Index2.47

Aliphatic Index 22.94

Aromaticity 0.1176

Extinction Coeff. Reduced 5500.00

Extinction Coeff. Oxidized 5500.00

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

Amino Acid Composition

TPSA 828.24

LogP -13.05

H-bond Donors 29.0

H-bond Acceptors 28.0

Rotatable Bonds 56.0

Heavy Atoms 128.0

Ring Count 4.0

Amide Bonds 19.0

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_0415829 VERIFIED: NO

Provenance & Taxonomy

OrganismPodura aquatica [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Neuropeptide