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Paper-scoped peptide mentionSequence reported

L-CR5

PMC12839123::PEP000001

Source publication

Comparison of In Vitro Multiple Physiological Activities of Cys–Tyr–Gly–Ser–Arg (CYGSR) Linear and Cyclic Peptides and Analysis Based on Molecular Docking

Biomolecules · 2026

Sequence status
reported
Standardization
Sequence ready
Source location
unknown
Activity records
10

Sequence evidence

Reported molecular identity

CYGSR

CYGSR

Resolved peptide links

Experimental observations

Records linked to this mention

AntioxidantPositive observation
Record detail

The IC50 of L-CR5 was calculated as 377.83 ± 34.32 μg/mL (646.25 ± 58.70 μM). Figure 3 caption: IC50 = 377.83 ± 34.32 μg/mL; (646.25 ± 58.70 μM), n = 3.

Measure
other
Value
377.83 ± 34.32 μg/mL (646.25 ± 58.70 μM)
Target
Not reported by source
Assay
Not reported by source
Source publication
AntioxidantAntibacterialPositive observation
Record detail

The scavenging ability of L-CR5 gradually increased from 18% to 53% in the range of 25–400 μg/mL.

Measure
percent_inhibition
Value
18% (at 25 μg/mL)
Target
Not reported by source
Assay
Not reported by source
Source publication
AntioxidantAntibacterialPositive observation
Record detail

The scavenging ability of L-CR5 gradually increased from 18% to 53% in the range of 25–400 μg/mL.

Measure
percent_inhibition
Value
53% (at 400 μg/mL)
Target
Not reported by source
Assay
Not reported by source
Source publication
AntioxidantTyrosinase InhibitorPositive observation
Record detail

The IC50 of L-CR5 was calculated as 680.63 ± 15.68 μg/mL (1164.0 ± 27.3 μM). Figure 4 caption: IC50 = 680.63 ± 15.68 μg/mL; (1164.0 ± 27.3 μM), n = 3.

Measure
other
Value
680.63 ± 15.68 μg/mL (1164.0 ± 27.3 μM)
Target
mushroom tyrosinase
Assay
Not reported by source
Source publication
AntioxidantTyrosinase InhibitorPositive observation
Record detail

In the range of 50–800 μg/mL, the tyrosinase inhibitory rate of L-CR5 gradually increased from 1.16% to 57.35%.

Measure
percent_inhibition
Value
1.16% (at 50 μg/mL)
Target
mushroom tyrosinase
Assay
Not reported by source
Source publication
AntioxidantTyrosinase InhibitorPositive observation
Record detail

In the range of 50–800 μg/mL, the tyrosinase inhibitory rate of L-CR5 gradually increased from 1.16% to 57.35%.

Measure
percent_inhibition
Value
57.35% (at 800 μg/mL)
Target
mushroom tyrosinase
Assay
Not reported by source
Source publication
AntioxidantMMP-1 InhibitorNegative / threshold
Record detail

L-CR5 showed expression levels of 99–100% in the 25–100 μg/mL range, had little tendency to decrease, and no significant inhibitory effect was observed at 100.80% even at 200 and 400 μg/mL.

Measure
percent_inhibition
Value
99–100% expression (no inhibition) at 25–100 μg/mL; 100.80% expression at 200–400 μg/mL
Target
CCD-986sk
Assay
Not reported by source
Source publication
ToxicityCytotoxicNegative / threshold
Record detail

As a result of treating the RAW 264.7 macrophages with L-CR5 and C-CR5 at a concentration of 6.25–400 μg/mL, cell viability was maintained at 95% or more in all treatment groups.

Measure
cell_viability
Value
≥95%
Target
RAW 264.7
Assay
Not reported by source
Source publication

Local peptide labels such as P1, PEP1, or peptide 1 are grouped only within this paper and are not assumed to represent the same molecule across publications.