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Unless otherwise stated all data on this page refer to the human proteins. Gene information is provided for human (Hs), mouse (Mm) and rat (Rn).
The type I receptor serine/threonine kinases are also known as activin receptors or activin receptor-like kinases, ALKs, for which a systematic nomenclature has been proposed (ALK1-7).
ALK1 (activin A receptor type IL)
C
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ALK2 (activin A receptor type 1)
C
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BMPR1A (bone morphogenetic protein receptor type IA)
C
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ALK4 (activin A receptor type 1B)
C
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TGFBR1 (transforming growth factor beta receptor 1)
C
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BMPR1B (bone morphogenetic protein receptor type IB)
C
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ALK7 (activin A receptor type 1C)
C
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Database page citation:
Type I receptor serine/threonine kinases. Accessed on 05/07/2025. IUPHAR/BPS Guide to PHARMACOLOGY, http://www.guidetopharmacology.org/GRAC/FamilyDisplayForward?familyId=318.
Concise Guide to PHARMACOLOGY citation:
Alexander SPH, Fabbro D, Kelly E, Mathie AA, Peters JA, Veale EL, Armstrong JF, Faccenda E, Harding SD, Davies JA et al. (2023) The Concise Guide to PHARMACOLOGY 2023/24: Catalytic receptors. Br J Pharmacol. 180 Suppl 2:S241-288.