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 - DFBPMIBP0002(Mineral-binding peptide)

DFBP ID	DFBPMIBP0002
Peptide sequence	QMEAESISSSEEIVPNSVEQK
Type	Native peptide
Peptide/Function name	Mineral-binding petpide, Caseinophosphopeptide

Function-activity relationship

Main bioactivity	Mineral-binding activity
Otheir bioactivity	N.D

Calculated physicochemical properties

Three-letter amino acid

Gln-Met-Glu-Ala-Glu-Ser-Ile-Ser-Ser-Ser-Glu-Glu-Ile-Val-Pro-Asn-Ser-Val-Glu-Gln-Lys

Single-letter amino acid

QMEAESISSSEEIVPNSVEQK

Peptide length

Peptide mass

Experimental mass	Theoretical mass
N.D	2321.48 Da ^c

Net charge

0.00 ^c

Isoelectric point (pI)

3.74 ^c

IC₅₀

N.D

pIC₅₀

N.D

GRAVY

-0.7810^c

Hydrophilic residue ratio

33.33%^c

Peptide calculator

Peptide source & Food-borne protein(s) search

Classification	Animal
Organism/Source	Bovine milk protein (Casein-derived phosphopeptides)
Precursor protein	α_s1-Casein
Residue position	f(59-79)
Precursor protein(s) search	Source.1: DFBPPR8488 ---- Milk proteins ---- Alpha-S1-casein
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

Mineral-binding activity

Peptide	Phosphoresidues	Net charge	Mineral binding
QMEAESISSSEEIVPNSVEQK	0	N.D	Ca, Fe
QMEAEΣIΣΣΣEEIVPNΣVEQK	5	-9	Ca, Fe
The one-letter amino acid codes were used; phosphoserine = Σ.

Specific target protein(s)

N.D

Taste properties & Structure

Bitterness

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

SMILES

N[C@@]([H])(CCC(=O)N)C(=O)N[C@@]([H])(CCSC)C(=O)N[C@@]([H])(CCC(=O)O)C(=O)N[C@@]([H])(C)C(=O)N[C@@]([H])(CCC(=O)O)C(=O)N[C@@]([H])(CO)C(=O)N[C@@]([H])([C@]([H])(CC)C)C(=O)N[C@@]([H])(CO)C(=O)N[C@@]([H])(CO)C(=O)N[C@@]([H])(CO)C(=O)N[C@@]([H])(CCC(=O)O)C(=O)N[C@@]([H])(CCC(=O)O)C(=O)N[C@@]([H])([C@]([H])(CC)C)C(=O)N[C@@]([H])(C(C)C)C(=O)N1[C@@]([H])(CCC1)C(=O)N[C@@]([H])(CC(=O)N)C(=O)N[C@@]([H])(CO)C(=O)N[C@@]([H])(C(C)C)C(=O)N[C@@]([H])(CCC(=O)O)C(=O)N[C@@]([H])(CCC(=O)N)C(=O)N[C@@]([H])(CCCCN)C(=O)O

Preparation method

Mode of preparation	Enzymatic hydrolysis
Enzyme(s)/starter culture	Bovine milk protein was hydrolyzed by trypsin.

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	Kawakami, H., Dosako, S.i., Nakajima, I. Effect of Lactoferrin on Iron Solubility under Neutral Conditions. Bioscience, Biotechnology, and Biochemistry. 2014, 57, 1376-7. DOI: 10.1271/bbb.57.1376
Other literature(s)	[1] Vegarud G E, Langsrud T, Svenning C. Mineral-binding milk proteins and peptides; occurrence, biochemical and technological characteristics[J]. British Journal of Nutrition, 2000, 84(S1):S91---S98. [2] Schlimme E & Meisel H (1995) Bioactive peptides derived from milk proteins: structural, physiological and analytical aspects. Die Nahrung 39, 1-20. [3] Gaucheron F, Famelart MH & Le Graet Y (1996) Iron-supplement caseins: preparation, physiochemical characterization and stability. Journal of Dairy Research 63, 233-243. [4] Meisel H & Schlimme E (1996) Bioactive peptides derived from milk proteins: ingredients for functional foods? Kieler Milchwirtschaftliche Forshungsberichte 48, 343-357. [5] Juillerat M, Baechler R, Berrocal R, Chanton S, Scherz JC & Jost R (1989) Tryptic phosphopeptide from whole casein. 1. Preparation and analysis by fast protein liquid chromatography. Journal of Dairy Research 56, 603-611. [6] Reynolds E, Riley PF & Adamson N (1994) A selective precipitation purification procedure for multiple phophoseryl-containing peptides and methods for their identification. Journal of Analytical Biochemistry 217, 277-284. [7] H. M , J. F R . Biofunctional Peptides from Milk Proteins: Mineral Binding and Cytomodulatory Effects[J]. curr pharm des, 2003, 9(16):1289-1295.
PubDate	2014