Rat Cytochrome P450 1A1 (Cyp1a1) ELISA Kit (RTEB0553)

Product Name:	Rat Cytochrome P450 1A1 (Cyp1a1) ELISA Kit
SKU:	RTEB0553
Size:	96T
Target:	Rat Cytochrome P450 1A1 (Cyp1a1)
Synonyms:	CYPIA1, Cytochrome P450 form 6, Cytochrome P450-C, Cytochrome P450-P1, Cytochrome P450MT2, Hydroperoxy icosatetraenoate dehydratase, CYP1A1, Cyp1a-1
Assay Type:	Sandwich
Detection Method:	ELISA
Reactivity:	Rat
Detection Range:	0.312-20ng/mL
Sensitivity:	0.156ng/mL

Intra CV:

4.9%

Inter CV:

9.0%

Linearity:

Sample	1:2	1:4	1:8	1:16
Serum(N=5)	84-94%	102-114%	96-106%	90-99%
EDTA Plasma(N=5)	82-94%	107-117%	108-119%	98-98%
Heparin Plasma(N=5)	111-120%	110-120%	89-98%	101-112%

Recovery:

Sample Type	Average(%)	Recovery Range(%)
Serum	101	95-107
Plasma	103	97-109

Function:

A cytochrome P450 monooxygenase involved in the metabolism of various endogenous substrates, including fatty acids, steroid hormones and vitamins. Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (CPR; NADPH-ferrihemoprotein reductase). Catalyzes the hydroxylation of carbon-hydrogen bonds. Exhibits high catalytic activity for the formation of hydroxyestrogens from estrone (E1) and 17beta-estradiol (E2), namely 2-hydroxy E1 and E2, as well as D-ring hydroxylated E1 and E2 at the C15alpha and C16alpha positions (By similarity). Displays different regioselectivities for polyunsaturated fatty acids (PUFA) hydroxylation (By similarity). Catalyzes the epoxidation of double bonds of certain PUFA (PubMed:20972997). Converts arachidonic acid toward epoxyeicosatrienoic acid (EET) regioisomers, 8,9-, 11,12-, and 14,15-EET, that function as lipid mediators in the vascular system. Displays an absolute stereoselectivity in the epoxidation of eicosapentaenoic acid (EPA) producing the 17(R),18(S) enantiomer (By similarity). May play an important role in all-trans retinoic acid biosynthesis in extrahepatic tissues. Catalyzes two successive oxidative transformation of all-trans retinol to all-trans retinal and then to the active form all-trans retinoic acid (By similarity). May also participate in eicosanoids metabolism by converting hydroperoxide species into oxo metabolites (lipoxygenase-like reaction, NADPH-independent) (By similarity).

Uniprot:	P00185
Sample Type:	Serum, plasma, tissue homogenates, cell culture supernates and other biological fluids
Specificity:	Natural and recombinant rat Cytochrome P450 1A1
Sub Unit:	Both Cytochrome P450MT2A and Cytochrome P450MT2B interact with cytosolic chaperones HSP70 and HSP90; this interaction is required for initial targeting to mitochondria. P450MT2B interacts (via mitochondrial targeting signal) with TOMM40 (via N-terminus); this interaction is required for translocation across the mitochondrial outer membrane.
Research Area:	Cardiovascular
Subcellular Location:	Cytochrome P450MT2B Endoplasmic reticulum membrane Peripheral membrane protein Mitochondrion inner membrane Peripheral membrane protein Microsome membrane Peripheral membrane protein
Storage:	Please see kit components below for exact storage details
Note:	For research use only

UniProt Protein Function:	CYP1A1: Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics
UniProt Protein Details:	Protein type:Oxidoreductase; Xenobiotic Metabolism - metabolism by cytochrome P450; Amino Acid Metabolism - tryptophan; EC 1.14.14.1; Cofactor and Vitamin Metabolism - retinol Cellular Component: cytoplasm; endoplasmic reticulum membrane; intracellular membrane-bound organelle; mitochondrial membrane; mitochondrion Molecular Function:catalytic activity; demethylase activity; enzyme binding; flavonoid 3'-monooxygenase activity; heme binding; iron ion binding; monooxygenase activity; oxidoreductase activity; oxidoreductase activity, acting on diphenols and related substances as donors; oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen; protein binding; steroid hydroxylase activity Biological Process: 9-cis-retinoic acid biosynthetic process; aging; amine metabolic process; camera-type eye development; cell proliferation; coumarin metabolic process; developmental process; dibenzo-p-dioxin catabolic process; dibenzo-p-dioxin metabolic process; drug metabolic process; embryonic development ending in birth or egg hatching; flavonoid metabolic process; gut development; heterocycle metabolic process; hydrogen peroxide biosynthetic process; insecticide metabolic process; liver development; maternal process involved in parturition; porphyrin metabolic process; response to antibiotic; response to arsenic; response to drug; response to food; response to herbicide; response to hyperoxia; response to hypoxia; response to iron(III) ion; response to lipopolysaccharide; response to nematode; response to organic cyclic substance; response to organic substance; response to toxin; response to virus; response to vitamin A; response to wounding; toxin metabolic process
NCBI Summary:	monooxygenase that plays a role in dioxin metabolism and detoxification which is 3-methylcholanthrene-inducible [RGD, Feb 2006]
UniProt Code:	P00185
NCBI GenInfo Identifier:	46048641
NCBI Gene ID:	24296
NCBI Accession:	NP_036672.2
UniProt Related Accession:	P00185
Molecular Weight:	59,393 Da
NCBI Full Name:	cytochrome P450 1A1
NCBI Synonym Full Names:	cytochrome P450, family 1, subfamily a, polypeptide 1
NCBI Official Symbol:	Cyp1a1
NCBI Official Synonym Symbols:	AHH; AHRR; CP11; CYP1; Cyp45c; P1-450; P450-C; P450DX; Cypc45c; P-450MC
NCBI Protein Information:	cytochrome P450 1A1
UniProt Protein Name:	Cytochrome P450 1A1
UniProt Synonym Protein Names:	CYPIA1; Cytochrome P450-C; Cytochrome P450MT2
Protein Family:	Cytochrome
UniProt Gene Name:	Cyp1a1
UniProt Entry Name:	CP1A1_RAT

Component	Quantity (96 Assays)	Storage
ELISA Microplate (Dismountable)	8×12 strips	-20°C
Lyophilized Standard	2	-20°C
Sample Diluent	20ml	-20°C
Assay Diluent A	10mL	-20°C
Assay Diluent B	10mL	-20°C
Detection Reagent A	120µL	-20°C
Detection Reagent B	120µL	-20°C
Wash Buffer	30mL	4°C
Substrate	10mL	4°C
Stop Solution	10mL	4°C
Plate Sealer	5	-

Other materials and equipment required:

Microplate reader with 450 nm wavelength filter
Multichannel Pipette, Pipette, microcentrifuge tubes and disposable pipette tips
Incubator
Deionized or distilled water
Absorbent paper
Buffer resevoir

*Note: The below protocol is a sample protocol. Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.

Allow all reagents to reach room temperature (Please do not dissolve the reagents at 37°C directly). All the reagents should be mixed thoroughly by gently swirling before pipetting. Avoid foaming. Keep appropriate numbers of strips for 1 experiment and remove extra strips from microtiter plate. Removed strips should be resealed and stored at -20°C until the kits expiry date. Prepare all reagents, working standards and samples as directed in the previous sections. Please predict the concentration before assaying. If values for these are not within the range of the standard curve, users must determine the optimal sample dilutions for their experiments. We recommend running all samples in duplicate.

Step
1.	Add Sample: Add 100µL of Standard, Blank, or Sample per well. The blank well is added with Sample diluent. Solutions are added to the bottom of micro ELISA plate well, avoid inside wall touching and foaming as possible. Mix it gently. Cover the plate with sealer we provided. Incubate for 120 minutes at 37°C.
2.	Remove the liquid from each well, don't wash. Add 100µL of Detection Reagent A working solution to each well. Cover with the Plate sealer. Gently tap the plate to ensure thorough mixing. Incubate for 1 hour at 37°C. Note: if Detection Reagent A appears cloudy warm to room temperature until solution is uniform.
3.	Aspirate each well and wash, repeating the process three times. Wash by filling each well with Wash Buffer (approximately 400µL) (a squirt bottle, multi-channel pipette,manifold dispenser or automated washer are needed). Complete removal of liquid at each step is essential. After the last wash, completely remove remaining Wash Buffer by aspirating or decanting. Invert the plate and pat it against thick clean absorbent paper.
4.	Add 100µL of Detection Reagent B working solution to each well. Cover with the Plate sealer. Incubate for 60 minutes at 37°C.
5.	Repeat the wash process for five times as conducted in step 3.
6.	Add 90µL of Substrate Solution to each well. Cover with a new Plate sealer and incubate for 10-20 minutes at 37°C. Protect the plate from light. The reaction time can be shortened or extended according to the actual color change, but this should not exceed more than 30 minutes. When apparent gradient appears in standard wells, user should terminatethe reaction.
7.	Add 50µL of Stop Solution to each well. If color change does not appear uniform, gently tap the plate to ensure thorough mixing.
8.	Determine the optical density (OD value) of each well at once, using a micro-plate reader set to 450 nm. User should open the micro-plate reader in advance, preheat the instrument, and set the testing parameters.
9.	After experiment, store all reagents according to the specified storage temperature respectively until their expiry.

When carrying out an ELISA assay it is important to prepare your samples in order to achieve the best possible results. Below we have a list of procedures for the preparation of samples for different sample types.

Sample Type	Protocol
Serum	If using serum separator tubes, allow samples to clot for 30 minutes at room temperature. Centrifuge for 10 minutes at 1,000x g. Collect the serum fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. If serum separator tubes are not being used, allow samples to clot overnight at 2-8°C. Centrifuge for 10 minutes at 1,000x g. Remove serum and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles.
Plasma	Collect plasma using EDTA or heparin as an anticoagulant. Centrifuge samples at 4°C for 15 mins at 1000 × g within 30 mins of collection. Collect the plasma fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. Note: Over haemolysed samples are not suitable for use with this kit.
Urine & Cerebrospinal Fluid	Collect the urine (mid-stream) in a sterile container, centrifuge for 20 mins at 2000-3000 rpm. Remove supernatant and assay immediately. If any precipitation is detected, repeat the centrifugation step. A similar protocol can be used for cerebrospinal fluid.
Cell culture supernatant	Collect the cell culture media by pipette, followed by centrifugation at 4°C for 20 mins at 1500 rpm. Collect the clear supernatant and assay immediately.
Cell lysates	Solubilize cells in lysis buffer and allow to sit on ice for 30 minutes. Centrifuge tubes at 14,000 x g for 5 minutes to remove insoluble material. Aliquot the supernatant into a new tube and discard the remaining whole cell extract. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C.
Tissue homogenates	The preparation of tissue homogenates will vary depending upon tissue type. Rinse tissue with 1X PBS to remove excess blood & homogenize in 20ml of 1X PBS (including protease inhibitors) and store overnight at ≤ -20°C. Two freeze-thaw cycles are required to break the cell membranes. To further disrupt the cell membranes you can sonicate the samples. Centrifuge homogenates for 5 mins at 5000xg. Remove the supernatant and assay immediately or aliquot and store at -20°C or -80°C.
Tissue lysates	Rinse tissue with PBS, cut into 1-2 mm pieces, and homogenize with a tissue homogenizer in PBS. Add an equal volume of RIPA buffer containing protease inhibitors and lyse tissues at room temperature for 30 minutes with gentle agitation. Centrifuge to remove debris. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C.
Breast Milk	Collect milk samples and centrifuge at 10,000 x g for 60 min at 4°C. Aliquot the supernatant and assay. For long term use, store samples at -80°C. Minimize freeze/thaw cycles.