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US 10,702,606 B2Granted
Peptide composition
AssigneeMenicon Co., Ltd.
InventorsYuya Suganuma, Tatsuya Ojio, Hidenori Yokoi
Life of this patent
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Abstract
The present invention provides a peptide composition that can achieve both excellent storage stability and transparency. The peptide composition of the present invention includes: a self-assembling peptide; a buffering agent having a pKa of 3.5 or more and less than 7.5 and containing one or more nitrogen atoms; and water, and has a pH of from 4.5 to 6.6.
Claims5
A peptide composition having a pH of from 4.5 to 6.6, the peptide composition comprising:
- a self-assembling peptide having a C-terminus comprising an amide group, wherein a total charge of amino acid residues contained in the self-assembling peptide is more than 0 and +3 or less, and an amino acid at the C-terminus of the self-assembling peptide comprises a basic amino acid;
- a buffering agent having a pKa of 3.5 or more and less than 7.5 and comprising histidine, thiamine nitrate, pyridine, bis-Tris, and/or N-methylmorpholine;
- and
- water.
1 more element
Dependencies are inferred from the claim text.