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ACVR1

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All listed services and products are For Research Use Only. Do Not use in any diagnostic or therapeutic applications.

Background

Activin A receptor type 1 (ACVR1), also known as activin receptor-like kinase 2 (ALK2), is a approximately 58 kDa type I transmembrane serine/threonine kinase receptor belonging to the transforming growth factor-beta (TGF-β) superfamily. Encoded by the ACVR1 gene on human chromosome 2q23-q24, the mature protein comprises an extracellular ligand-binding domain rich in cysteine residues, a single transmembrane helix, and an intracellular kinase domain with predicted serine/threonine specificity. A distinctive glycine-serine (GS) activation domain juxtamembrane to the kinase domain serves as the critical regulatory switch controlling receptor activation. ACVR1 functions as an indispensable signaling component within bone morphogenetic protein (BMP) receptor complexes. It assembles with type II receptors—including AMHR2, ACVR2A, or ACVR2B—to form heterotetrameric complexes at the cell surface. Upon ligand engagement by BMPs such as BMP7 or GDF2/BMP9, the type II receptor transphosphorylates the GS domain of ACVR1, unleashing its intrinsic kinase activity. Activated ACVR1 subsequently phosphorylates SMAD1/5/8 transcription factors, which translocate to the nucleus to drive gene expression programs governing osteogenesis, chondrogenesis, and tissue patterning. Beyond this canonical BMP pathway, ACVR1 can also engage non-canonical signaling cascades including p38 MAPK and suppress TGF-β/activin signaling under specific contexts, underscoring its signaling versatility.

Fig.1 ACVR1 signal transduction. (OA Literature)Fig.1 Schematic representation of main ACVR1 signal transduction.1

ACVR1 Protein Function: A Master Regulator of Skeletal Development and Beyond

The biological influence of ACVR1 extends across multiple developmental and pathological systems:

  • Bone and Cartilage Morphogenesis: ACVR1 is central to the gradual replacement of cartilage by bone during normal skeletal maturation. It governs osteoblast differentiation, chondrocyte maturation, and joint morphogenesis. In the developing digits, precisely regulated ACVR1-mediated BMP signaling ensures proper joint specification and interzone formation. Aberrant enhancement of this pathway disrupts joint cleavage and produces the characteristic skeletal malformations observed in fibrodysplasia ossificans progressiva (FOP).
  • Cardiovascular and Reproductive Development: The receptor participates in heart morphogenesis, vascular smooth muscle cell behavior, and germ cell genesis. Dysregulated ACVR1 signaling in vascular smooth muscle has been implicated in pulmonary hypertension pathogenesis, while its role in hepcidin regulation on hepatocytes links the receptor to systemic iron metabolism.
  • Oncogenic Signaling: In malignancy, ACVR1 expression is frequently elevated. In gastric cancer, high ACVR1 levels correlate with advanced tumor stage, lymph node metastasis, and poor overall survival. The receptor promotes epithelial-mesenchymal transition, cancer-associated fibroblast formation, and immune evasion by fostering suppressive immune cell infiltration. In multiple myeloma and myelofibrosis, ACVR1-mediated hepcidin production contributes to anemia pathophysiology, establishing the receptor as a viable therapeutic target in hematological oncology.

ACVR1 Membrane Protein Product

Propel your developmental biology and drug discovery programs with our recombinant ACVR1 membrane protein products. We recognize that the type I receptor topology, GS domain conformational requirements, and ligand-dependent receptor interactions of ACVR1 can present distinct production challenges. To address these, we provide ACVR1 membrane protein preparations and constructs suitable for a range of structural, ligand-binding, biochemical, and functional studies. Available formats and construct designs may vary according to specific research requirements. Each preparation is subject to appropriate quality assessment to support its intended research application.

ACVR1 Protein Product

Not finding the membrane protein product you need? Contact us to start your one-stop custom service!

ACVR1 Stable Cell Line Product

Reliable, reproducible cellular models are indispensable for dissecting ACVR1-driven biology and evaluating research compounds and pathway modulators. We provide ACVR1 stable cell lines designed to support gain-of-function, loss-of-function, and pathway-focused studies. These platforms can be applied to BMP pathway analysis, SMAD1/5/8 phosphorylation studies, osteogenic differentiation research, and mechanistic or compound screening, providing consistent cellular models for a range of research applications.

ACVR1 Stable Cell Line Product

Not finding the stable cell line product you need? Contact us to start your one-stop custom service!

ACVR1 Recombinant Antibody Product

Our comprehensive portfolio includes high-affinity recombinant antibodies targeting ACVR1, developed to meet the rigorous demands of various research applications. These antibodies, produced using advanced recombinant technologies, offer superior specificity, sensitivity, and batch-to-batch consistency compared to traditional polyclonal antibodies. Our ACVR1 recombinant antibodies are validated for use in Western Blotting (WB), ELISA, Flow Cytometry (FCM), Immunofluorescence (IF), Immunocytochemistry (ICC), Immunohistochemistry (IHC), and Immunoprecipitation (IP), empowering accurate detection and quantification of ACVR1 in diverse sample types including osteoblast lysates, tumor biopsies, and transfected cell membranes.

ACVR1 Recombinant Antibody Product

Not finding the recombinant antibody product you need? Contact us to start your one-stop custom service!

Product Features

  • High Purity & Activity: High purity and verified integrity for dependable downstream work.
  • Diverse Expression Systems: Choice of expression formats to match routine or specialized projects.
  • Species Reactivity: Products available for human, mouse, pig, and other species.
  • Validated Applications: Application-tested to deliver consistent signals across common lab workflows.
  • Exceptional Lot-to-Lot Consistency: Tight lot-to-lot control for reproducible performance.
  • Customization Options: Flexible customization of tags, labels, or packaging upon request.

Custom ACVR1 Membrane Protein and Antibody Discovery Services

Beyond our catalog products, we offer specialized custom services for membrane protein and antibody discovery and development. Leveraging our extensive expertise in ACVR1 biology and rare disease pharmacology, we can assist you with:

  • Custom ACVR1 Receptor Production: Tailored expression, purification, and characterization of challenging multi-domain receptor constructs.
  • Custom Antibody Development: From antigen design to antibody engineering (monoclonal, polyclonal, recombinant) for specific research applications.
  • Stable Cell Line Development: Generation of bespoke stable cell lines expressing your target of interest.
  • Functional Assay Development: Designing and executing assays to assess receptor activation and ligand.

Frequently Asked Questions (FAQ)

  1. Are your ACVR1 reagents registered as companion diagnostics or approved for clinical mutation screening in pediatric bone dysplasia or brainstem tumor profiling?

    No, all reagents and services provided are designated solely for research purposes and cannot be used for diagnostic testing or therapeutic purposes.

  2. Do you offer stable cell lines that co-express ACVR1 with its type II receptor partners BMPR2 or ACVR2A for modeling BMP receptor complex assembly and signaling?

    We can discuss the development of customized co-expression cell models incorporating ACVR1 with BMPR2 or ACVR2A according to specific research requirements. Appropriate expression strategies and pathway-related readouts, such as SMAD1/5/8 phosphorylation or other functional assays, can be selected based on the intended experimental design.

  3. Can your anti-ACVR1 antibodies be applied to immunohistochemical staining of decalcified, formalin-fixed heterotopic ossification or brainstem tissue sections to map receptor distribution in pathological lesions?

    Yes, selected clones have been validated on EDTA-decalcified bone specimens and archival neural tissue following antigen retrieval, yielding specific membranous staining patterns consistent with osteogenic and glial cell distribution. Validation includes peptide competition and recombinant antigen controls to confirm epitope specificity across heterogeneous tissue contexts.

  4. Do your ACVR1 antibodies exhibit cross-reactivity with mouse and rat orthologs commonly used in developmental biology and heterotopic ossification model systems?

    Yes, the immunogen corresponds to a region that is highly conserved across mammalian species, ensuring reliable detection in human, mouse, and rat tissue preparations and cell lysates without requiring multiple species-specific reagents.

Reference
  1. Valer, José Antonio, et al. "ACVR1 function in health and disease." Cells 8.11 (2019): 1366. Under Open Access license CC BY 4.0, without modification. https://doi.org/10.3390/cells8111366
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