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IL4I1 Antibody (C-Term)
Purified Rabbit Polyclonal Antibody (Pab)
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application 
| WB, E |
|---|---|
| Primary Accession | Q96RQ9 |
| Reactivity | Human |
| Host | Rabbit |
| Clonality | polyclonal |
| Isotype | Rabbit IgG |
| Calculated MW | 62881 Da |
| Gene ID | 259307 |
|---|---|
| Other Names | L-amino-acid oxidase, LAAO, LAO, 1.4.3.2, Interleukin-4-induced protein 1, IL4-induced protein 1, Protein Fig-1, hFIG1, IL4I1, FIG1 |
| Target/Specificity | This IL4I1 antibody is generated from a rabbit immunized with a KLH conjugated synthetic peptide between 391-422 amino acids from human IL4I1. |
| Dilution | WB~~1:2000 |
| Format | Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide. This antibody is purified through a protein A column, followed by peptide affinity purification. |
| Storage | Maintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles. |
| Precautions | IL4I1 Antibody (C-Term) is for research use only and not for use in diagnostic or therapeutic procedures. |
| Name | IL4I1 {ECO:0000303|PubMed:16029492} |
|---|---|
| Function | Secreted L-amino-acid oxidase that acts as a key immunoregulator (PubMed:17356132, PubMed:32818467, PubMed:32866000). Has preference for L-aromatic amino acids: converts phenylalanine (Phe), tyrosine (Tyr) and tryptophan (Trp) to phenylpyruvic acid (PP), hydroxyphenylpyruvic acid (HPP), and indole-3-pyruvic acid (I3P), respectively (PubMed:17356132, PubMed:32818467, PubMed:32866000). Also has weak L-arginine oxidase activity (PubMed:26673964). Acts as a negative regulator of anti-tumor immunity by mediating Trp degradation via an indole pyruvate pathway that activates the transcription factor AHR (PubMed:32818467, PubMed:32866000). IL4I1-mediated Trp catabolism generates I3P, giving rise to indole metabolites (indole-3-acetic acid (IAA) and indole-3-aldehyde (I3A)) and kynurenic acid, which act as ligands for AHR, a ligand-activated transcription factor that plays important roles in immunity and cancer (PubMed:32818467, PubMed:32866000). AHR activation by indoles following IL4I1-mediated Trp degradation enhances tumor progression by promoting cancer cell motility and suppressing adaptive immunity (PubMed:32818467). Also has an immunoregulatory function in some immune cells, probably by mediating Trp degradation and promoting downstream AHR activation: inhibits T-cell activation and proliferation, promotes the differentiation of naive CD4(+) T-cells into FOXP3(+) regulatory T- cells (Treg) and regulates the development and function of B-cells (PubMed:17356132, PubMed:25446972, PubMed:25778793, PubMed:28891065). Also regulates M2 macrophage polarization by inhibiting T-cell activation (By similarity). Also has antibacterial properties by inhibiting growth of Gram negative and Gram positive bacteria through the production of NH4(+) and H2O2 (PubMed:23355881). |
| Cellular Location | Secreted. Lysosome {ECO:0000250|UniProtKB:O09046}. Cytoplasmic vesicle, secretory vesicle, acrosome. Note=Secreted at the immunological synapse. |
| Tissue Location | Primarily found in immune tissues, with the highest expression in lymph nodes and spleen (PubMed:12031486, PubMed:12446450). Present in germinal center macrophages and inflammatory myeloid cells and antigen-presenting cells (at protein level) (PubMed:17356132). Also present in spermatozoa (at protein level) (PubMed:25767141). Highly expressed in primary mediastinal large B-cell lymphoma, a specific subtype of diffuse large B-cell lymphoma (PubMed:12446450). Expressed by neoplastic cells of several B-cell lymphomas and by tumor-associated macrophages (PubMed:19436310) |
Research Areas
Citations (0)
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info@abcepta.com, and receive a free "I Love Antibodies" mug.
Application Protocols
Provided below are standard protocols that you may find useful for product applications.
Background
Lysosomal L-amino-acid oxidase with highest specific activity with phenylalanine. May play a role in lysosomal antigen processing and presentation (By similarity).
References
Chavan S.S.,et al.Biochim. Biophys. Acta 1576:70-80(2002).
Wiemann S.,et al.BMC Biol. 3:16-16(2005).
Chu C.C.,et al.Submitted (MAY-2005) to the EMBL/GenBank/DDBJ databases.
Jikuya H.,et al.Submitted (JAN-2002) to the EMBL/GenBank/DDBJ databases.
Clark H.F.,et al.Genome Res. 13:2265-2270(2003).
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$ 365.00
$ 140.00
Cat# AP22006b
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