Sociedad Americana de Hirudoterapia

Hirudin Hman5

Fifth-paralog active H. manillensis hirudin variant from the comprehensive genome annotation — Liu 2023.

Preclínico / mecanísticoLast updated: 2026-05-28 · Reviewed by ASH Editorial Board
Molecular weight of Hirudin Hman5 compared with other characterized leech-derived compoundsHementerin80 kDaHementin80 kDaHementin-Like Protein (HLP-1)80 kDaLeech Collagenase70 kDaHaemadipsa yanyuanensis Progr…70 kDaLeech Apyrase67 kDaCalin65 kDaHyaluronidase60 kDaAntithrombin III binding prot…58 kDaCollagenolytic Fibrinolysin55 kDaLeech Thrombospondin-Like Pro…50 kDaHirudin Hman57 kDa
Molecular weight (kilodaltons) of Hirudin Hman5 (highlighted) alongside other characterized leech salivary compounds. Smaller proteins/peptides generally diffuse and act faster.

Mechanistic Evidence Box

Preclinical / mechanistic
Page type
Compound profile
Evidence type
Fifth-paralog active H. manillensis hirudin variant from the comprehensive genome annotation — Liu 2023.
Evidence level
In vitro
Drug vs leech
Recombinant (genetically expressed)
Safety domains
Bleeding

Clinical translation limit

Hirudin Hman5's in vitro anticoagulant activity does NOT establish clinical efficacy. No FDA-approved derivative; H. manillensis is not on the FDA K040187 cleared device species list.

Molecular Profile

Category
Anticoagulant
Evidence tier
Preclinical
Molecular weight
7,000 Da
Source species
Hirudinaria manillensis
Discovered
2023 · Liu Z et al.
Hirudin Hman5 molecular structure

Biological Targets

  • thrombin (Factor IIa)

Key Citations

  1. Liu Z et al. (2023), Genes (Basel) · PMID 38003011

External Resources

    Related Anticoagulant Compounds

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