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Human Intelectin-1/Omentin Antibody

R&D Systems, part of Bio-Techne | Catalog # AF4254

R&D Systems, part of Bio-Techne
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AF4254
AF4254-SP

Key Product Details

Species Reactivity

Validated:

Human

Cited:

Human, Mouse, Porcine

Applications

Validated:

Immunocytochemistry, Immunohistochemistry, Western Blot

Cited:

Immunohistochemistry-Paraffin, Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Sheep IgG

Product Specifications

Immunogen

E. coli-derived recombinant human Intelectin-1/Omentin
Thr19-Ser298
Accession # Q8WWA0

Specificity

Detects human Intelectin-1 in direct ELISAs and Western blots.

Clonality

Polyclonal

Host

Sheep

Isotype

IgG

Scientific Data Images for Human Intelectin-1/Omentin Antibody

Intelectin-1/Omentin antibody in Mouse Intestine by Immunohistochemistry (IHC-Fr).

Intelectin-1/Omentin in Mouse Intestine.

Intelectin-1/Omentin was detected in immersion fixed frozen sections of mouse intestine using 10 µg/mL Sheep Anti-Human Intelectin-1/Omentin Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4254) overnight at 4 °C. Tissue was stained with the NorthernLights™ 557-conjugated Anti-Sheep IgG Secondary Antibody (red; NL010) and counterstained with DAPI (blue). View our protocol for Fluorescent IHC Staining of Frozen Tissue Sections.
Intelectin-1/Omentin antibody in U937 Human Cell Line by Immunocytochemistry (ICC).

Intelectin‑1/Omentin in U937 Human Cell Line.

Intelectin-1/Omentin was detected in immersion fixed U937 human histiocytic lymphoma cell line using Sheep Anti-Human Intelectin-1/Omentin Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4254) at 5 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Sheep IgG Secondary Antibody (red; NL010) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
Detection of Human Intelectin-1/Omentin by Immunocytochemistry/Immunofluorescence

Detection of Human Intelectin-1/Omentin by Immunocytochemistry/Immunofluorescence

SPINK4 and ITLN1 mark early goblet cells. a Volcano plot showing fold change and P value of genes differentially expressed in the ‘goblet-type’ cell cluster as compared to all other cell clusters (see Fig. 3). Points coloured red indicate genes significant at 5% permutation test. Selected highly significant genes are labelled. b Bar chart showing the percentage of cells in the ‘goblet-type’ cell cluster (n = 98) expressing MUC2, ITLN1 or SPINK4 alone or in different combinations (thresholds set at the tenth centile to include 90% of cells in which at least one transcript was detected from each gene). c Triple immunofluorescence staining images of MUC2 (red), ITLN1 (white) and SPINK4 (green) in normal colon from a resection specimen (blue stain is DAPI). Scale bar, 100 µm. d Triple immunofluorescence staining images of MUC2 (red), ITLN1 (white) and SPINK4 (green) in normal oesophageal epithelium obtained by endoscopic biopsy (blue stain is DAPI). OSGs encroaching on the surface epithelium are shown in the enlarged images on the right. Scale bars are 200 µm and 50 µm in enlarged images. e Triple immunofluorescence staining images of KRT14 (white), KRT7 (green) and MUC2 (red) in an OSG beneath normal squamous epithelium from an endoscopic biopsy of normal squamous epithelium from a patient with BO biopsy (blue stain is DAPI). Scale bar 50 µm. f Representative immunofluorescence staining of Barrett’s EMR specimen containing intestinal metaplasia but no dysplasia for MUC2 (red), ITLN1 (white) and SPINK4 (green); nuclei (DAPI) in blue. Scale bars are 400 µm and 100 µm in enlarged images Image collected and cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/30323168), licensed under a CC-BY license. Not internally tested by R&D Systems.

Applications for Human Intelectin-1/Omentin Antibody

Application
Recommended Usage

Immunocytochemistry

5-15 µg/mL
Sample: Immersion fixed U937 human histiocytic lymphoma cell line

Immunohistochemistry

5-15 µg/mL
Sample: Immersion fixed frozen sections of mouse intestine

Western Blot

0.1 µg/mL
Sample: Recombinant Human Intelectin-1/Omentin

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Reconstitution Buffer Available:
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Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

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: Intelectin-1/Omentin

Intelectin-1 (intestinal lectin; also ITLN-1 and omentin) is a 40 kDa Ca-dependent galactofuranose-binding lectin that is not a C-type lectin. It is expressed on multiple cell types and appears to participate in insulin signaling and microbe recognition. The human ITLN-1 preproprecursor is 313 amino acids (aa) in length. It contains an 18 aa signal sequence, a 280 aa mature segment (aa 19-298), and a 15 aa C-terminal proregion that is cleaved to generate a GPI-linkage. One fibrinogen-related domain exists in the mature molecule (aa 36-209). Human ITLN-1 exists as a disulfide-linked glycosylated homotrimer. Mouse ITLN-1 is unglycosylated and a monomer. Mature human ITLN-1 is 82% aa identical to mouse ITLN-1. Human ITLN-1 shows one alternate start site at Met72, and a splice form that contains a 32 aa substitution for aa 264-313.

Alternate Names

HL-1, Intelectin1, ITLN1, Itlna, LFR, Omentin, Omentin-1

Entrez Gene IDs

55600 (Human); 16429 (Mouse)

Gene Symbol

ITLN1

UniProt

Additional Intelectin-1/Omentin Products

Product Documents for Human Intelectin-1/Omentin Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human Intelectin-1/Omentin Antibody

For research use only

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