Source comparison
Kisspeptin Half-Life: Fragment Comparison
Kisspeptin-10 1.3 kDa 20–28 minutes Rapid renal filtration + plasma protease cleavage Acute pulsatile GnRH studies, precise temporal control Best choice for modeling physiological GnRH pulses. Short half-life prevents receptor desensitization Kisspeptin-54 6.2
This comparison does not assign a generated winner or score.
- Kisspeptin-10
- 1.3 kDa
- 20–28 minutes
- Rapid renal filtration + plasma protease cleavage
- Acute pulsatile GnRH studies, precise temporal control
- Best choice for modeling physiological GnRH pulses. Short half-life prevents receptor desensitization
- Kisspeptin-54
- 6.2 kDa
- 30–40 minutes
- Slower protease degradation, renal filtration
- Slightly extended receptor activation window
- Marginally longer clearance but no significant functional advantage over kisspeptin-10 for most protocols
- PEGylated Kisspeptin Analogs
- 8–12 kDa
- 4–8 hours
- Reduced renal clearance, protease resistance
- Chronic administration studies, sustained receptor activation
- Extends half-life but eliminates pulsatile signaling. Use only when continuous activation is the research goal
- Native Full-Length Kisspeptin (kisspeptin-145)
- 16 kDa
- Not well-characterized in humans
- Likely similar to kisspeptin-54 after proteolytic processing
- Rarely used. Processed to kisspeptin-54 in vivo
- Theoretical interest only. Endogenous processing renders full-length form irrelevant for exogenous dosing