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SLC40A1

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

Background

Solute carrier family 40 member 1 (SLC40A1) is a multi-pass membrane iron efflux transporter encoded by the SLC40A1 gene, composed of 12 transmembrane helices and cytoplasmic iron regulatory motif, acting as core export subunit for cellular ferrous iron transport complexes. SLC40A1 is highly expressed in reticuloendothelial macrophages, hepatocytes and intestinal epithelial cell populations, serving as membrane scaffold assembling iron efflux oligomers and recruiting metal-sensing kinases upon intracellular iron accumulation stimulation.

SLC40A1 fulfills physiological functions via membrane oligomerized transporter assembly, a mechanism stabilizing transmembrane ferrous iron gradients and tuning intracellular metal metabolic cascade efficiency. Unlike auxiliary iron-binding proteins, SLC40A1 cannot sustain complete iron efflux flux without intact oligomeric conformation and requires full membrane complex assembly to generate complete metabolic signal output; it recruits cytoplasmic signal mediators to transporter assemblies, separating intracellular iron storage sensing from systemic metal homeostatic transcription factor activation and maintaining steady tissue iron regulatory signals. This dual regulatory mode modulates cellular iron efflux responses triggered by metal overload, fine-tunes systemic iron circulation and metal mediator secretion levels, while sustained defective SLC40A1 efflux capacity induces intracellular iron overload and oxidative tissue lesions. SLC40A1 participates in key physiological and pathological processes including macrophage iron recycling, intestinal iron absorption control, hepatic metal storage and chronic iron overload metabolic disorders. Altered SLC40A1 expression or iron transport capacity disrupts whole-body iron equilibrium and exacerbates oxidative tissue damage, establishing SLC40A1 as a critical research target for SLC metal transporter signaling, systemic iron metabolism and iron overload disease research.

Fig. 1 Core iron export function of SLC40A1 across major iron-metabolizing cell types. (OA Literature)Fig. 1 SLC40A1 (FPN1)-mediated iron efflux in macrophages, duodenal epithelium and hepatocytes for systemic iron circulation.1

SLC40A1 Protein Function: Core Roles in Iron Efflux Oligomer Assembly and Systemic Metal Homeostasis

The biological functions of SLC40A1 are focused on SLC metal transporter oligomerization, iron efflux signal propagation and whole-body tissue metal balance:

  • Iron Efflux Transporter Modulation: Forms homo-oligomeric membrane transport complexes to stabilize ferrous iron outward gradients and amplify downstream metal homeostatic signal activity, the primary molecular mechanism of SLC40A1-mediated regulation.
  • Metal Homeostasis Signal Tuning: Recruits cytoplasmic signaling kinases to activate iron regulatory transcription factors, balancing macrophage iron recycling dynamics.
  • Systemic Iron Circulation Mediation: Supports sustained cellular iron efflux to coordinate cross-tissue metal redistribution reactions.
  • Oxidative Tissue Surveillance: Strengthens iron overload-triggered transporter signaling to limit intracellular metal toxic accumulation.
  • Disease Relevance: Downregulated or dysfunctional SLC40A1 induces tissue iron overload and chronic oxidative metabolic pathologies, serving as a core target for SLC metal transporter research.

SLC40A1 Protein Product

Creative Biolabs offers high-purity SLC40A1 proteins via optimized heterologous expression platforms, including full-length transporters and isolated cytoplasmic regulatory domain variants with modified glycosylation features. These products retain native membrane folding, suitable for cellular metal transport research, transporter complex interaction detection and small molecule iron balance regulator screening. All SLC40A1 proteins undergo strict quality assessment covering purity analysis and iron efflux functional validation to preserve intact biological activity.

SLC40A1 Protein Product

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

SLC40A1 Stable Cell Line Product

Creative Biolabs provides custom SLC40A1 stable cell models with overexpression and knockdown phenotypes in macrophage, hepatic and intestinal epithelial cell backgrounds. These cell lines are optimized for research on iron efflux oligomer assembly, systemic metal homeostatic signal cascades and iron balance regulatory compound responsiveness. Each cell model receives full validation of stable expression and complete metal transport functionality.

SLC40A1 Stable Cell Line Product

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

SLC40A1 Recombinant Antibody Product

High-specificity recombinant antibodies targeting SLC40A1 are generated through advanced antibody engineering workflows, without cross-reactivity against other SLC metal transporter subunits. These reagents are validated for immunofluorescence macrophage membrane localization, Western blot expression profiling and co-immunoprecipitation of iron efflux oligomeric complexes, enabling precise analysis of SLC40A1 expression, subcellular localization and metal transport functional regulation.

SLC40A1 Recombinant Antibody Product

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

Product Features

  • Native Iron Efflux Oligomer Binding Activity: Preserves native conformational folding and membrane transporter homo-oligomer assembly capacity, faithfully reproducing endogenous macrophage iron recycling and systemic metal homeostatic regulatory processes.
  • SLC40 Transporter Specificity: Selectively recognizes unique SLC40A1 epitopes without cross-binding other metal SLC transporters, supporting specific cellular iron efflux research.
  • Iron Metabolism Research Compatibility: Optimized for macrophage, hepatic and intestinal epithelial experimental systems, delivering reliable research tools for iron balance modulator development and oxidative damage mechanistic exploration.
  • Comprehensive Customization Support: Provides full-cycle customized SLC40A1 proteins, antibodies and stable cell lines to satisfy diverse metal transport and iron overload disorder research demands.

Custom SLC40A1 Research Services

Beyond catalog products, Creative Biolabs offers specialized custom services for SLC40A1 research:

  • Custom SLC40A1 Protein Production: Custom synthesis of SLC40A1 variants including transport-impaired mutants, tagged constructs and fusion proteins paired with iron regulatory signaling mediators.
  • Custom Antibody Development: Generation of SLC40A1-specific antibodies for cellular localization, transporter complex detection and functional blocking assays targeting iron efflux activity.
  • Stable Cell Line Engineering: Custom SLC40A1-expressing macrophage/hepatic/intestinal cell lines and iron balance signal reporter cell lines, validated for oligomeric transporter assembly and metal homeostatic signal output.
  • Functional Assay Development: Design of SLC-mediated ferrous efflux assays, intracellular iron storage detection platforms and iron regulatory small molecule screening workflows.

Frequently Asked Questions (FAQ)

  1. What is the primary function of SLC40A1?

    SLC40A1 is a macrophage iron efflux transporter forming homo-oligomeric membrane complexes to control cellular ferrous iron export magnitude, balance systemic iron recycling dynamics and mitigate metal overload oxidative stress upon intracellular iron accumulation.

  2. Why is SLC40A1 a significant research target?

    SLC40A1 is the primary transporter mediating reticuloendothelial iron recycling; its loss of function causes progressive tissue iron overload and oxidative injury, making it an indispensable research target for metal transporter and iron metabolic disease studies.

  3. Are Creative Biolabs' SLC40A1 products suitable for clinical use?

    No, all SLC40A1 products and auxiliary services are designed exclusively for laboratory research, not authorized for clinical diagnosis or therapeutic intervention.

  4. What types of SLC40A1 products does Creative Biolabs offer?

    The product portfolio includes full-length and regulatory domain-truncated SLC40A1 proteins, specific recombinant antibodies, and custom stable macrophage cell lines supporting cellular iron transport and metal metabolism research.

  5. How are SLC40A1 proteins validated for activity?

    SLC40A1 proteins pass homo-oligomer transporter binding tests and cellular iron efflux functional verification to maintain native metal homeostatic regulatory activity in metabolic research.

Reference
  1. Huang, Limian, et al. "SLC40A1 (iron transporter): mechanistic regulation, role in disease pathogenesis, and prospects for targeted therapy." Frontiers in Cell and Developmental Biology 14 (2026): 1816800. Under Open Access license CC BY 4.0, without modification. https://doi.org/10.3389/fcell.2026.1816800
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