Peptide properties

1Top 2Function-activity relationship 3Calculated physicochemical properties 4Peptide source & Food-borne protein(s) search 5Biological/Functional activity & target protein 6Taste properties & Structure 7Preparation method 8Stability & Cytotoxicity 9Additional information 10Database cross-references 11Reference(s)

List of peptide properties

DFBP ID - DFBPANOX1195(Antioxidative peptide)

DFBP ID	DFBPANOX1195
Peptide sequence	SDGFQF
Type	Native peptide
Peptide/Function name	Antioxidative peptide

Function-activity relationship

Main bioactivity	Antioxidative activity
Otheir bioactivity	N.D

Calculated physicochemical properties

Three-letter amino acid

Ser-Asp-Gly-Phe-Gln-Phe

Single-letter amino acid

SDGFQF

Peptide length

Peptide mass

Experimental mass	Theoretical mass
N.D	699.71 Da ^c

Net charge

0.00 ^c

Isoelectric point (pI)

3.13 ^c

IC₅₀

N.D

pIC₅₀

N.D

GRAVY

-0.4333^c

Hydrophilic residue ratio

50%^c

Peptide calculator

Peptide source & Food-borne protein(s) search

Classification	Animal, Marine
Organism/Source	Red tilapia (Oreochromis sp.)
Precursor protein	Scale protein
Residue position	N.D
Precursor protein(s) search	Source.1: DFBPPR9981 ---- Animal proteins ---- Collagen alpha-1(I) chain
Link-research Inductive analysis	There are no literature reports on the discovery of this sequence in other food-source proteins.

Biological/Functional activity & target protein

Antioxidative activity	The Peptide SDGFQF was extracted from the hydrolysate by membrane ultrafiltration and chromatographic technology guided by the antioxidant activity in rat vascular smooth muscle A7r5 cells, so it was a potential antioxidative peptide (no synthetic experiments).
Specific target protein(s)	N.D

Taste properties & Structure

Bitterness

Literature report	N.D
Bitter prediction tools	Non-bitter taste ^prediction

SMILES

N.D

Preparation method

Mode of preparation	Enzymatic hydrolysis
Enzyme(s)/starter culture	Scales were ground and enzymatically hydrolyzed by Alcalase® 2.4 L.

Stability & Cytotoxicity

Peptide stability

Literature report:	N.D
EHP-Tool:	Enzymatic Hydrolysis Prediction Tool (EHP-Tool)

Peptide cytotoxicity

Literature report:	N.D
Prediction:	ToxinPred

Additional information

N.D

Database cross-references

[D1]

[D2]

[D3]

[D4]

Reference(s)

Primary literature	Sierra, L.; Fan, H.; Zapata, J.; Wu, J., Antioxidant peptides derived from hydrolysates of red tilapia (Oreochromis sp.) scale. Lwt 2021,146. DOI: 10.1016/j.lwt.2021.111631
Other literature(s)	N.D
PubDate	2021