- Catalog number
- A01801-1
- Size / count
- 100 µg/Vial
- Dry ice
- No
- Hazardous
- No
- Discontinued
- No
- Background
- Serine protease HTRA1 is an enzyme that in humans is encoded by the HTRA1 gene. This gene encodes a member of the trypsin family of serine proteases. This protein is a secreted enzyme that is proposed to regulate the availability of insulin-like growth factors (IGFs) by cleaving IGF-binding proteins. It has also been suggested to be a regulator of cell growth. Variations in the promoter region of this gene are the cause of susceptibility to age-related macular degeneration type 7.
- Synonyms
- Serine protease HTRA1; High-temperature requirement A serine peptidase 1; L56; Serine protease 11; HTRA1; HTRA; PRSS11
- Gene Name
- HTRA1
- Gene ID
- 5654
- UniProt
- Q92743
- Host
- Rabbit
- Reactivity
- Human, Mouse, Rat
- Cross Reactivity
- No cross-reactivity with other proteins.
- Immunogen
- A synthetic peptide corresponding to a sequence at the N-terminus of human HTRA1, which shares 93.2% amino acid (aa) sequence identity with both mouse and rat HTRA1.
- Clonality
- Polyclonal
- Tissue Specificity
- Widely expressed, with strongest expression in placenta (at protein level) . Secreted by synovial fibroblasts. Up- regulated in osteoarthritis and rheumatoid arthritis synovial fluids and cartilage as compared with non-arthritic (at protein level) .
- Applications
- IHC, WB
- Field of Research
- Growth Factors/Hormones, Signal Transduction
- Purification
- Immunogen affinity purified.
- Concentration
- Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.
- Form
- Lyophilized
- Reconstitution
- Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
- Function
- Serine protease with a variety of targets, including extracellular matrix proteins such as fibronectin. HTRA1-generated fibronectin fragments further induce synovial cells to up-regulate MMP1 and MMP3 production. May also degrade proteoglycans, such as aggrecan, decorin and fibromodulin. Through cleavage of proteoglycans, may release soluble FGF-glycosaminoglycan complexes that promote the range and intensity of FGF signals in the extracellular space. Regulates the availability of insulin-like growth factors (IGFs) by cleaving IGF-binding proteins. Inhibits signaling mediated by TGF-beta family members. This activity requires the integrity of the catalytic site, although it is unclear whether TGF-beta proteins are themselves degraded. By acting on TGF-beta signaling, may regulate many physiological processes, including retinal angiogenesis and neuronal survival and maturation during development. Intracellularly, degrades TSC2, leading to the activation of TSC2 downstream targets.
- References & Citations
- 1. Akhatib, B., Onnerfjord, P., Gawri, R., Ouellet, J., Jarzem, P., Heinegard, D., Mort, J., Roughley, P., Haglund, L. Chondroadherin fragmentation mediated by the protease HTRA1distinguishes human intervertebral disc degeneration from normal aging. J. Biol. Chem. 288: 19280-19287, 2013. 2. Bianchi, S., Di Palma, C., Gallus, G. N., Taglia, I., Poggiani, A., Rosini, F., Rufa, A., Muresanu, D. F., Cerase, A., Dotti, M. T., Federico, A. Two novel HTRA1 mutations in a European CARASIL patient. Neurology 82: 898-900, 2014.
- Storage Conditions
- Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.
- Observed Molecular Weight
- 51 kDa
- Specificity
- No cross reactivity with other proteins.
- Gene Name Synonym
- HtrA serine peptidase 1
- Subcellular Location
- Cell membrane.
- Isotype
- Rabbit IgG
- Contents
- 243