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  • AV49664 - Anti-SIGIRR antibody produced in rabbit

AV49664 Sigma-Aldrich

Anti-SIGIRR antibody produced in rabbit

affinity isolated antibody

Synonym: Anti-MGC110992, Anti-Single immunoglobulin and toll-interleukin 1 receptor (TIR) domain, Anti-TIR8

  •  NACRES NA.41



conjugate   unconjugated
clone   polyclonal
biological source   rabbit
application(s)   immunohistochemistry: suitable
  western blot: suitable
species reactivity   rat, horse, dog, bovine, pig, human, mouse
mol wt   25 kDa
form   buffered aqueous solution
shipped in   wet ice
storage temp.   −20°C
antibody form   affinity isolated antibody
Quality Level   100
antibody product type   primary antibodies
concentration   0.5 mg - 1 mg/mL
NCBI accession no.   NP_068577
UniProt accession no.   Q6IA17
Gene Information   human ... SIGIRR(59307)


General description

Single immunoglobulin and toll-interleukin 1 receptor (TIR) domain (SIGIRR; TIR8) is an orphan receptor of the interleukin-1 Receptor/Toll Like Receptor family. It is ubiquitously expressed in tissues, particularly kidney, digestive tract, liver, lung, and lymphoid organs.


Synthetic peptide directed towards the C terminal region of human SIGIRR


Anti-SIGIRR antibody produced in rabbit is suitable for western blotting at a concentration of 1.0μg/ml and for immunohistochemistry of tissue sections at a concentration of 5μg/ml.

Physical form

Purified antibody supplied in 1x PBS buffer with 0.09% (w/v) sodium azide and 2% sucrose.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Biochem/physiol Actions

Single immunoglobulin and toll-interleukin 1 receptor (TIR) domain (SIGIRR; TIR8) regulates the inflammation in brain by interacting with IL (Interleukin)-36Ra in glial cells. Similarly, SIGIRR is down-regulated in intestinal epithelial cells during inflammation. It acts as the negative regulator of NF-κB (Nuclear factor κ B), JNK (c-Jun N-terminal kinase) and TLR (Toll-like receptor)/IL-1R mediated signaling pathways. IL-37 forms a complex with IL-18Rα and SIGIRR. Together they control the intracellular anti-inflammatory program. Mutations in SIGIRR are associated with necrotizing enterocolitis in premature infants. Single nucleotide polymorphism in SIGIRR is linked to systemic lupus erythematosus.


Synthetic peptide located within the following region: PVFGEPSAPPHTSGVSLGESRSSEVDVSDLGSRNYSARTDFYCLVSKDDM

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy


Western Blot Protocol | Immunoblotting Protocol

Western Blotting refers to the electrophoretic transfer of proteins from sodium dodecyl sulfate polyacrylamide gels to sheets of PVDF or nitrocellullose membrane, followed by immunodetection of prote...
Keywords: AGE, Buffers, Cell disruption, Detection methods, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, Western blot

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