Human/Mouse Tmp21/p23 Antibody

  
  • Species Reactivity
    Human, Mouse
  • Specificity
    Detects human and mouse in direct ELISAs and Western blots.
  • Source
    Polyclonal Sheep IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    E. coli-derived recombinant human Tmp21/p23
    Ile32-Arg185
    Accession # P49755
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    0.5 µg/mL
    See below
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Examples
Detection of Human and Mouse Tmp21/p23 by Western Blot.

Western blot shows lysates of mouse pancreas tissue, U‑87 MG human glioblastoma/astrocytoma cell line, and human pancreas tissue. PVDF membrane was probed with 0.5 µg/mL of Sheep Anti-Human/Mouse Tmp21/p23 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7630) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for Tmp21/p23 at approximately 21 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Preparation and Storage
  • Reconstitution
    Sterile PBS to a final concentration of 0.2 mg/mL.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • Stability & Storage
    Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
    • 12 months from date of receipt, -20 to -70 °C as supplied.
    • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
    • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Tmp21/p23

Tmp21 (Transmembrane protein 21 also TMED-10,Transmembrane emp24 Domain-containing Protein 10, p24δ1 and p23) is a 21‑23 kDa member of the EMP [endosome membrane protein] 24 /GP25L family of cargo molecules. It is ubiquitously expressed, being found associated with the ER-Golgi complex. Molecules destined for secretion are folded/processed in the ER, transported out of the ER via COP-II coated vesicles, united with other molecules in similar vesicles to form an ERGIC/ER-Golgi Intermediate Compartment, and finally delivered to the Golgi (or returned to the ER) via new (presumably COP-I) coated vesicles for terminal maturation. Tmp21 is considered part of both the COP-II and COP-I oligomer complex, the latter that arises from the ERGIC and both stabilizes the ER and allows for the selection of specific molecules targeted for secretion. It also is known to associate with the presenilin complex in the plasma membrane and downregulate gamma ‑secretase activity. This impacts A beta production but not AICD generation. Mature human Tmp21 is a 188 amino acid (aa) type I transmembrane protein. It contains a 154 aa luminal region (aa 32-185) that shows a membrane interaction GOLD (Golgi Dynamics) domain (aa 41-193), and a short 13 aa cytoplasmic tail (aa 207-219) that binds to COP vesicle coat complexes. Exists as both a monomer and homodimer. Over aa 32-185, human Tmp21 shares 97% aa sequence identity with mouse Tmp21.

  • Long Name:
    21 kDa Transmembrane Trafficking Protein
  • Entrez Gene IDs:
    10972 (Human); 68581 (Mouse); 84599 (Rat)
  • Alternate Names:
    21 kDa transmembrane-trafficking protein; p23; P24(DELTA); p24delta; S31I125; S31III125; TMED10; Tmp21; TMP21Tmp-21-I; transmembrane emp24 domain-containing protein 10; transmembrane emp24-like trafficking protein 10 (yeast); Transmembrane protein Tmp21,21 kDa transmembrane trafficking protein
Related Research Areas
Isotype Controls
Description Application Cat# Citations Images  

Normal Sheep IgG Control

Ctrl 5-001-A 9
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Secondary Antibodies
Description Application Cat# Citations Images  

Sheep IgG HRP-conjugated Antibody

WB, Simple Western HAF016 14  
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Donkey Anti-Sheep IgG NorthernLights™ NL557-conjugated Antibody

Flow, IHC, ICC NL010 3
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Donkey Anti-Sheep IgG NorthernLights™ NL637-conjugated Antibody

Flow, IHC, ICC NL011 5
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Donkey Anti-Sheep IgG NorthernLights™ NL493-conjugated Antibody

Flow, IHC, ICC NL012 2
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Sheep IgG (H+L) PE-conjugated Antibody

Flow F0126  
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Donkey Anti-Sheep IgG Biotinylated Antibody

WB BAF016 2
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Sheep IgG (H+L) APC-conjugated Antibody

Flow F0127  
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Sheep IgG VisUCyte HRP Polymer Antibody

IHC VC006  
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Donkey Anti-Sheep IgG (H+L) Fluorescein-conjugated Antibody

Flow F0125 1
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Donkey Anti-Sheep IgG (H+L) PerCP-conjugated Antibody

Flow F0128
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