{"product_id":"abcam-ab137975","title":"Abcam, ab137975, Human Factor H ELISA Kit","description":"\u003cp\u003eSize: 1 x 96Tests\u003cbr\u003e\nHuman Factor H ELISA Kit is a sandwich ELISA designed to quantify Human Factor H with a sensitivity of 0.14 ng\/mL. - Colorimetric sandwich ELISA - 450 nm readout - works on any plate reader - Validated on a number of sample types including cerebrospinal fluid (CSF) - Wide dynamic range - quantifies 1.125 - 9 ng\/mL\u003cbr\u003e\nKey facts\u003cbr\u003e\nDetection method:Colorimetric,\u003cbr\u003e\nSample types:Urine, Saliva, Milk, Plasma, Serum, Cerebral Spinal Fluid,\u003cbr\u003e\nReacts with:Human,\u003cbr\u003e\nAssay type:Sandwich (quantitative),\u003cbr\u003e\nSensitivity:= 0.16 ng\/mL,\u003cbr\u003e\nRange:0.281 - 18 ng\/mL,\u003cbr\u003e\nAssay time:4h,\u003cbr\u003e\nAssay Platform:Microplate\u003c\/p\u003e\n\n\u003cp\u003eProduct details:\u003cbr\u003e\nHuman Factor H ELISA Kit ab137975 is a sandwich ELISA to measure Human Factor H in serum, plasma, cell culture supernatant, cerebral spinal fluid (CSF), saliva, urine, milk with a sensitivity of 0.14 ng\/ml.\u003cbr\u003e\nHow the assay works\u003cbr\u003e\nA Factor H specific antibody has been precoated onto 96-well plates and blocked. Standards or test samples are added to the wells and subsequently a Factor H specific biotinylated detection antibody is added and then followed by washing with wash buffer. Streptavidin-Peroxidase Conjugate is added and unbound conjugates are washed away with wash buffer. TMB is then used to visualize Streptavidin-Peroxidase enzymatic reaction. TMB is catalyzed by Streptavidin-Peroxidase to produce a blue color product that changes into yellow after adding acidic stop solution. The density of yellow coloration is directly proportional to the amount of Factor H captured in plate.\u003cbr\u003e\nAssay Specificity\u003cbr\u003e\nOur ELISA kits are rigorously validated to ensure the highest level of consistency and reproducibility. Please check the protocol booklet for more details\u003cbr\u003e\nHuman Factor H ELISA Kit ab137975 protocol summary\u003cbr\u003e\n1. Add standard or sample to appropriate wells. Incubate at room temperature\u003cbr\u003e\n2. Wash and add prepared biotin antibody to each well. Incubate at room temperature.\u003cbr\u003e\n3. Wash and add prepared Streptavidin-Peroxidase Conjugate. Incubate at room temperature\u003cbr\u003e\n4. Add Chromogen Substrate to each well. Incubate at room temperature\u003cbr\u003e\n5. Add Stop Solution to each well. Read at 450 nm immediately.\u003c\/p\u003e\n\n\u003cp\u003eProperties and Storage Information:\u003cbr\u003e\nShipped at conditions-Blue Ice, Appropriate short-term storage conditions--20°C, Appropriate long-term storage conditions-Multi, Storage information-Please refer to protocols\u003c\/p\u003e\n\n\u003cp\u003eSupplementary Information:\u003cbr\u003e\nThis supplementary information is collated from multiple sources and compiled automatically.\u003cbr\u003e\nFactor H also known as complement factor H is an important regulatory protein in the complement system. It has a molecular mass of approximately 155 kDa. This protein is mainly expressed in the liver but it can also be found in low levels in other tissues. Factor H serves as a control element for complement activation particularly affecting the alternative pathway. It binds to C3b a central component of the complement system and accelerates the decay of C3 convertase as well as promotes the proteolytic inactivation of C3b by factor I.\u003cbr\u003e\nBiological function summary\u003cbr\u003e\nFactor H limits the activity of the complement system to prevent damage to host tissues. The protein exists in the plasma in a soluble form. It functions by recognizing host cell surfaces via specific markers avoiding inappropriate activation. Factor H belongs to a group of proteins which include other regulators of complement activation. These proteins maintain the balance between effective immune defense and protection of host tissue from excessive immune responses.\u003cbr\u003e\nPathways\u003cbr\u003e\nFactor H is a part of the alternative complement pathway. This pathway is important for innate immune response involving proteins like factor P (properdin) which stabilizes C3 convertase. Factor H modulates these interactions to prevent unwarranted complement activity on host cells. Another related pathway is the classic complement pathway although factor H's involvement here is less direct since it primarily regulates the alternative pathway.\u003cbr\u003e\nFactor H associations include atypical hemolytic uremic syndrome and age-related macular degeneration. Factor H deficiency or dysfunction can lead to uncontrolled complement activation resulting in kidney damage in atypical hemolytic uremic syndrome where it is also related to factor I. Additionally in age-related macular degeneration variants in the factor H gene are linked to increased susceptibility further highlighting the protein's importance in regulating immune responses.\u003c\/p\u003e","brand":"Abcam","offers":[{"title":"Default Title","offer_id":46843620753577,"sku":"ab137975","price":0.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/iright.com\/products\/abcam-ab137975","provider":"Iright","version":"1.0","type":"link"}