Human VSIG1 Antibody

(1 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human VSIG1 in direct ELISAs and Western blots. In direct ELISAs and Western blots, approximately 5% cross‑reactivity with recombinant human (rh) VSIG2, rhVSIG3, rhVSIG4, and recombinant mouse VSIG1 is observed.
  • Source
    Polyclonal Sheep IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant human VSIG1
    Val22-Gly234
    Accession # Q86XK7
  • 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
    0.2 µg/mL
    See below
  • Simple Western
    10 µg/mL
    See below
  • Immunohistochemistry
    5-15 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 VSIG1 by Western Blot. Western blot shows lysates of human testis tissue. PVDF membrane was probed with 0.2 µg/mL of Sheep Anti-Human VSIG1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4818) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for VSIG1 at approximately 80 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Immunohistochemistry
VSIG1 in Human Testis. VSIG1 was detected in immersion fixed frozen sections of human testis using 10 µg/mL Sheep Anti-Human VSIG1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4818) overnight at 4 °C. Tissue was stained with the NorthernLights™ 557-conjugated Anti-Sheep IgG Secondary Antibody (red; Catalog # NL010) and counterstained with DAPI (blue). View our protocol for Fluorescent IHC Staining of Frozen Tissue Sections.
Detection of Human VSIG1 by Simple WesternTM. Simple Western lane view shows lysates of human testis tissue, loaded at 0.2 mg/mL. A specific band was detected for VSIG1 at approximately 115 kDa (as indicated) using 10 µg/mL of Sheep Anti-Human VSIG1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4818) followed by 1:50 dilution of HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • 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: VSIG1

VSIG1 (V-set and Ig domain-containing protein 1; also Glycoprotein A34) is a variably glycosylated 55‑70 kDa member of the JAM family of proteins. It has restricted expression, being limited to testicular germ cells plus pancreatic duct and gastric epithelium. VSIG1 is likely to serve as an adhesion molecule. Mature human VSIG1 is 366 amino acids (aa) in length. It is a type I transmembrane glycoprotein that contains a 211 aa extracellular domain (ECD). The ECD contains one V-type (aa 22‑132) and one C2-type Ig-like domain (aa 140‑227). Over aa 22‑234, human VSIG1 is 83% aa identical to both mouse and canine VSIG1. At least one potential splice variant exists in human. It shows an insertion of 36 aa after Ser72 and a deletion of aa 133‑387.

  • Long Name:
    V-Set and Immunoglobulin Domain Containing 1
  • Entrez Gene IDs:
    340547 (Human); 78789 (Mouse); 315920 (Rat)
  • Alternate Names:
    Cell surface A33 antigen; dJ889N15.1; Glycoprotein A34; GPA34; MGC44287,1700062D20Rik; V-set and immunoglobulin domain containing 1; V-set and immunoglobulin domain-containing protein 1; VSIG1
Related Research Areas
Citations:

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citations: Showing 1 - 1

  1. RNA sequencing of sessile serrated colon polyps identifies differentially expressed genes and immunohistochemical markers.
    Authors: Delker D, McGettigan B, Kanth P, Pop S, Neklason D, Bronner M, Burt R, Hagedorn C
    PLoS ONE, 2014;9(2):e88367.
    Species: Human
    Sample Type: Whole Tissue
    Application: IHC
Cell and Tissue Staining Kits
Description Application Cat# Citations Images  

Anti-Sheep HRP-DAB Cell & Tissue Staining Kit

CTS019 1
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Immunohistochemistry Reagents
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Antigen Retrieval Reagent-Universal

CTS015 10
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Antigen Retrieval Reagent-Basic

CTS013 4
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Mounting Medium

CTS011 4
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Antigen Retrieval Reagent Sampler (50 mL each)

CTS016
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Antigen Retrieval Reagent-Acidic

CTS014
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NorthernLights Guard Mounting Media

NL996
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VisUCyte Antigen Retrieval Reagent-Universal

VCTS023
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VisUCyte Antigen Retrieval Reagent-Acidic

VCTS022
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VisUCyte Antigen Retrieval Reagent-Basic

VCTS021
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Isotype Controls
Description Application Cat# Citations Images  

Normal Sheep IgG Control

Ctrl 5-001-A 9
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Secondary Antibodies
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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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