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TMEM106B

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

Background

Transmembrane protein 106B (TMEM106B) is a highly conserved single-pass type II integral membrane protein encoded by the TMEM106B gene, predominantly localized to late endosomal and lysosomal limiting membranes across central nervous system neurons and microglial populations, serving as a master modulator of lysosomal organelle morphology, acidification and degradative cargo sorting. The polypeptide contains a single hydrophobic transmembrane helix, a short cytosolic N-terminal domain and a large luminal C-terminal domain, and interacts with lysosomal lipid bilayers and other lysosomal scaffold proteins to control vesicle fusion, lysosome size and perinuclear organelle positioning within neural cells. Under physiological central nervous system homeostasis, basal TMEM106B expression maintains intact lysosomal degradative capacity to clear aggregated protein cargo and sustain microglial phagocytic function for neuronal debris clearance. Genetic TMEM106B variant alleles alter protein stability and lysosomal membrane trafficking, shifting organelle acidification efficiency and impairing toxic protein aggregate turnover in aging brain tissue. Distinct from housekeeping lysosomal transporters with nutrient recycling functions, TMEM106B specializes in structural and morphological regulation of degradative compartments without direct substrate transport activity, representing a unique lysosomal scaffold with no functionally redundant paralogs in mammalian neural tissue. Reduced functional TMEM106B disrupts lysosomal acidification, accumulates toxic neuronal protein aggregates and elevates risk of frontotemporal lobar degeneration, while abnormal TMEM106B overexpression triggers excessive lysosomal vesicle enlargement and impaired microglial clearance activity, establishing TMEM106B as a core research target for lysosomal neurobiology and age-related neurodegenerative disorder mechanism exploration.

TMEM106B executes core lysosomal structural regulatory function embedded within late endosome-lysosome lipid bilayers, utilizing luminal and transmembrane domain interactions to coordinate organelle membrane shaping, vesicle fusion events and proton pump complex retention to sustain proper lysosomal luminal pH. Conserved intraluminal structural motifs mediate homotypic TMEM106B oligomerization to form membrane scaffold networks that constrain lysosomal organelle dimensions and control perinuclear lysosome clustering critical for efficient autophagic cargo degradation. TMEM106B-dependent lysosomal structural integrity sustains balanced neural tissue proteostasis, covering controlled clearance of misfolded neuronal proteins and sustained microglial phagocytic degradative capacity. TMEM106B participates in a broad spectrum of neurophysiological processes including lysosomal biogenesis, autophagic aggregate clearance, microglial debris turnover and age-dependent brain tissue proteostasis maintenance. Dysregulated TMEM106B expression disrupts lysosomal acidification and aggregate clearance, accelerating toxic protein deposition linked to neurodegenerative pathology. Therefore, TMEM106B represents a pivotal research target for multi-pass lysosomal scaffold protein study and neuroprotective lysosomal modulator screening.

Fig. 1 Schematic of TMEM106B‑PGRN mediated lysosomal lipid breakdown network, which can guide lipid substrate quantification, hydrolase activity measurement, neurodegenerative mechanism exploration and lipid‑targeted therapeutic compound screening. (OA Literature)Fig. 1 PGRN generates granulins to assist lysosomal hydrolase function; TMEM106B restrains GALC catalytic activity, jointly governing the lysosomal sphingolipid catabolic network composed of GCase and HexA.1

TMEM106B Protein Function: Core Roles in Lysosomal Morphology Control, Luminal Acidification and Neural Proteostasis

The biological functions of TMEM106B are focused on endolysosomal membrane scaffolding, organelle pH maintenance and microglial degradative function tuning:

  • Lysosomal Scaffolding: Oligomerizes on lysosomal membranes to control organelle size, shape and perinuclear positioning.
  • Acidification Support: Stabilizes vacuolar ATPase complexes to sustain optimal luminal pH for lysosomal hydrolase activity.
  • Aggregate Clearance: Facilitates autophagic and phagocytic turnover of misfolded neuronal protein aggregates in microglia and neurons.
  • Microglial Homeostasis: Regulates lysosomal degradative capacity to maintain efficient clearance of apoptotic neuronal debris.
  • Disease Relevance: Risk-associated TMEM106B variants impair lysosomal function and increase susceptibility to frontotemporal dementia.

TMEM106B Protein Product

Creative Biolabs offers high-quality TMEM106B proteins through optimized expression systems, including full-length multi-pass lysosomal scaffold and isolated luminal N-terminal domain variants. These products retain native conformational characteristics and lysosomal membrane oligomerization biological activity, suitable for endolysosomal scaffold interaction assays and neuroprotective lysosomal modulator screening. All TMEM106B proteins undergo strict quality control to ensure consistent performance and reliable application across diverse research platforms.

TMEM106B Membrane Protein Product

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

TMEM106B Stable Cell Line Product

Creative Biolabs provides custom-engineered TMEM106B stable cell lines, including wild-type and neurodegeneration risk variant control models. These cell lines are optimized for lysosomal morphology profiling and autophagic aggregate clearance functional analysis. Each cell line undergoes stringent validation to ensure stable expression profiles and consistent functional performance in diverse experimental contexts.

TMEM106B Stable Cell Line Product

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

TMEM106B Recombinant Antibody Product

High-specificity recombinant antibodies targeting TMEM106B are developed via advanced antibody engineering technologies, with no cross-reactivity with other multi-pass lysosomal transmembrane proteins. These antibodies are validated for late endosome/lysosome subcellular localization detection and central nervous system microglial/neuronal tissue profiling, and can be paired with LAMP1 detection reagents to quantify complete lysosomal scaffold membrane complexes in neurodegenerative cell models.

TMEM106B Recombinant Antibody Product

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

Product Features

  • Native Lysosomal Scaffold Activity: Preserves intact membrane oligomerization capacity for neural lysosomal proteostasis research.
  • Lysosomal Protein Specificity: Eliminates non-specific cross-recognition of unrelated endolysosomal multi-pass membrane proteins.
  • Neurodegeneration Compatibility: Optimized reagent series for frontotemporal dementia risk factor and lysosomal protective compound screening workflows.
  • Comprehensive Customization Support: Facilitates end-to-end development of customized proteins, antibodies and stable cell lines to address lysosomal neurobiology research demands.

Custom TMEM106B Research Services

Beyond catalog products, Creative Biolabs offers specialized custom services for TMEM106B research:

  • Custom TMEM106B Protein Production: Tailored expression of risk-variant and domain-truncated TMEM106B constructs for lysosomal membrane oligomerization analysis.
  • Custom Antibody Development: Generation of TMEM106B-specific antibodies for neuronal and microglial lysosomal membrane immunostaining.
  • Stable Cell Line Engineering: Construction of TMEM106B variant-modified cell models for lysosomal acidification and aggregate clearance research.
  • Functional Assay Development: Custom design of lysosomal morphology measurement and autophagic protein degradation detection workflows.

Frequently Asked Questions (FAQ)

  1. What is the primary function of TMEM106B?

    TMEM106B is a multi-pass lysosomal scaffold protein that controls organelle morphology, stabilizes lysosomal proton pumps and sustains neuronal and microglial protein aggregate clearance.

  2. Why is TMEM106B a significant research target?

    Common TMEM106B genetic variants modify lysosomal function and confer altered risk of frontotemporal neurodegeneration, making it a core brain lysosomal disease marker.

  3. Are Creative Biolabs' TMEM106B products suitable for clinical use?

    No, all TMEM106B products and services are strictly for research use only, not intended for clinical diagnosis or treatment.

  4. What types of TMEM106B products does Creative Biolabs offer?

    Offerings include full-length TMEM106B lysosomal scaffold proteins, variant-specific detection antibodies and custom stable cell lines for neural lysosomal proteostasis research.

  5. How are TMEM106B proteins validated for activity?

    TMEM106B proteins are validated via lysosomal membrane homotypic oligomerization interaction testing.

Reference
  1. Takahashi, Hideyuki, and Stephen M. Strittmatter. "The role of endolysosomal progranulin and TMEM106B in neurodegenerative diseases." Molecular Neurodegeneration 20.1 (2025): 86. Under Open Access license CC BY 4.0, without modification. https://doi.org/10.1186/s13024-025-00873-6
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