Peptide Database

Peptide NameSI5α-b

Function Ontology

Neurological / Signaling ▸ Signaling peptide

Standard StatusStandard

Sequence Length7 amino acids

Chemical FormulaC37H59N9O12

DescriptionStandard

        QAKTFLD
    

Molecular Weight821.92 Da

Isoelectric Point (pI)6.09

Net Charge (pH 7.0)-0.24

Net Charge (pH 7.4) -0.44

Charge Density (pH 7.0) -0.0338

GRAVY Index-0.46

Hydrophobic Moment 0.50

Boman Index-0.06

Instability Index26.20

Aliphatic Index 70.00

Aromaticity 0.1429

Extinction Coeff. Reduced 0.00

Extinction Coeff. Oxidized 0.00

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

Amino Acid Composition

TPSA 364.56

LogP -3.13

H-bond Donors 12.0

H-bond Acceptors 12.0

Rotatable Bonds 27.0

Heavy Atoms 58.0

Ring Count 1.0

Amide Bonds 7.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0396516 VERIFIED: YES

Provenance & Taxonomy

Organismnot reported [other]

FamilyGtoPdb peptide ligand

Structure & Mods

Configsynthetic linear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

N-Termacetylated

C-Termamidated

Other ModsN-terminal acetylation; C-terminal amidation

Bio-Activity Profile

Function

Signaling peptide

TargetCoV Spike glycoprotein (SARS-CoV-2)