Mouse PDGFB ELISA Kit (MOFI00146)

Product Name:	Mouse PDGFB ELISA Kit
Product Code:	MOFI00146
Size:	96 Assays
Alias:	PDGFB, B chain, Becaplermin, FLJ12858, PDGF subunit B, PDGF2, PDGF-2, platelet-derived growth factor 2, Platelet-derived growth factor beta polypeptide, platelet-derived growth factor subunit B, platelet-derived growth factor, B chain
Detection Method:	Sandwich ELISA
Application:	This immunoassay kit allows for the in vitro quantitative determination of Mouse PDGFB concentrations in serum plasma and other biological fluids.
Sensitivity:	18.75pg/ml
Range:	31.25-2000pg/ml
Storage:	4°C for 6 months
Note:	For Research Use Only

Recovery:

Matrices listed below were spiked with certain level of Mouse PDGFB and the recovery rates were calculated by comparing the measured value to the expected amount of Mouse PDGFB in samples.

Matrix	Recovery range(%)	Average(%)
serum(n=5)	85-105	94
EDTA plasma(n=5)	86-105	98
UFH plasma(n=5)	88-99	94

Linearity:

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Mouse PDGFB and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.

Sample	1:2	1:4	1:8
serum(n=5)	90-103%	97-105%	91-102%
EDTA plasma(n=5)	90-98%	84-98%	85-97%
UFH plasma(n=5)	81-99%	88-100%	80-99%

Intra Assay:

CV <8%

Inter Assay:

CV <10%

Component	Quantity	Storage
ELISA Microplate (Dismountable)	8×12 strips	4°C for 6 months
Lyophilized Standard	2	4°C/-20°C
Sample/Standard Dilution Buffer	20ml	4°C
Biotin-labeled Antibody(Concentrated)	120ul	4°C (Protect from light)
Antibody Dilution Buffer	10ml	4°C
HRP-Streptavidin Conjugate(SABC)	120ul	4°C (Protect from light)
SABC Dilution Buffer	10ml	4°C
TMB Substrate	10ml	4°C (Protect from light)
Stop Solution	10ml	4°C
Wash Buffer(25X)	30ml	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

Uniprot

P31240

UniProt Protein Function:	PDGFB: Growth factor that plays an essential role in the regulation of embryonic development, cell proliferation, cell migration, survival and chemotaxis. Potent mitogen for cells of mesenchymal origin. Required for normal proliferation and recruitment of pericytes and vascular smooth muscle cells in the central nervous system, skin, lung, heart and placenta. Required for normal blood vessel development, and for normal development of kidney glomeruli. Plays an important role in wound healing. Signaling is modulated by the formation of heterodimers with PDGFA. A chromosomal aberration involving PDGFB is found in dermatofibrosarcoma protuberans. Translocation t(17;22)(q22;q13) with PDGFB. Belongs to the PDGF/VEGF growth factor family.
UniProt Protein Details:	Protein type:Secreted, signal peptide; Secreted; Motility/polarity/chemotaxis; Oncoprotein Cellular Component: extracellular space; cell surface; membrane; basolateral plasma membrane; cytoplasm; extracellular region Molecular Function:collagen binding; identical protein binding; protein homodimerization activity; growth factor activity; protein heterodimerization activity; platelet-derived growth factor binding; platelet-derived growth factor receptor binding; superoxide-generating NADPH oxidase activator activity; chemoattractant activity; receptor binding Biological Process: embryonic placenta development; peptidyl-tyrosine phosphorylation; positive regulation of cyclin-dependent protein kinase activity; positive regulation of transcription, DNA-dependent; multicellular organismal development; heart development; positive regulation of smooth muscle cell proliferation; platelet-derived growth factor receptor signaling pathway; positive regulation of fibroblast growth factor receptor signaling pathway; cell projection biogenesis; positive regulation of smooth muscle cell migration; protein amino acid phosphorylation; monocyte chemotaxis; positive regulation of MAP kinase activity; positive regulation of fibroblast proliferation; positive chemotaxis; positive regulation of MAPKKK cascade; negative regulation of vasodilation; positive regulation of glomerular filtration; positive regulation of cell proliferation; response to wounding; positive regulation of mitotic cell cycle, embryonic; regulation of peptidyl-tyrosine phosphorylation; negative regulation of cell migration; substrate-bound cell migration; positive regulation of mitosis; positive regulation of chemotaxis; activation of protein kinase B; negative regulation of phosphatidylinositol biosynthetic process; positive regulation of blood vessel endothelial cell migration; positive regulation of phosphoinositide 3-kinase activity; positive regulation of protein amino acid autophosphorylation; positive regulation of phosphoinositide 3-kinase cascade; positive regulation of peptidyl-tyrosine phosphorylation; peptidyl-serine phosphorylation; positive regulation of cell division; activation of protein kinase activity; positive regulation of vasoconstriction; blood vessel morphogenesis; positive regulation of endothelial cell proliferation; blood coagulation; negative regulation of transcription, DNA-dependent; actin cytoskeleton organization and biogenesis; positive regulation of DNA replication; positive regulation of cell migration
UniProt Code:	P31240
NCBI GenInfo Identifier:	400744
NCBI Gene ID:	18591
NCBI Accession:	P31240.1
UniProt Secondary Accession:	P31240,Q6P3C4,
UniProt Related Accession:	P31240
Molecular Weight:	27,382 Da
NCBI Full Name:	Platelet-derived growth factor subunit B
NCBI Synonym Full Names:	platelet derived growth factor, B polypeptide
NCBI Official Symbol:	Pdgfb
NCBI Official Synonym Symbols:	Sis; PDGF-B
NCBI Protein Information:	platelet-derived growth factor subunit B; c-sis; PDGF-2; PDGF subunit B; proto-oncogene c-Sis; platelet-derived growth factor B chain; platelet-derived growth factor beta polypeptide
UniProt Protein Name:	Platelet-derived growth factor subunit B
UniProt Synonym Protein Names:	PDGF-2; Platelet-derived growth factor B chain; Platelet-derived growth factor beta polypeptide; Proto-oncogene c-Sis
UniProt Gene Name:	Pdgfb
UniProt Entry Name:	PDGFB_MOUSE

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

Step	Procedure
1.	Set standard, test sample and control (zero) wells on the pre-coated plate respectively, and then, record their positions. It is recommended to measure each standard and sample in duplicate. Wash plate 2 times before adding standard, sample and control (zero) wells!
2.	Aliquot 0.1ml standard solutions into the standard wells.
3.	Add 0.1 ml of Sample / Standard dilution buffer into the control (zero) well.
4.	Add 0.1 ml of properly diluted sample (Human serum, plasma, tissue homogenates and other biological fluids.) into test sample wells.
5.	Seal the plate with a cover and incubate at 37 °C for 90 min.
6.	Remove the cover and discard the plate content, clap the plate on the absorbent filter papers or other absorbent material. Do NOT let the wells completely dry at any time. Wash plate X2.
7.	Add 0.1 ml of Biotin- detection antibody working solution into the above wells (standard, test sample & zero wells). Add the solution at the bottom of each well without touching the side wall.
8.	Seal the plate with a cover and incubate at 37°C for 60 min.
9.	Remove the cover, and wash plate 3 times with Wash buffer. Let wash buffer rest in wells for 1 min between each wash.
10.	Add 0.1 ml of SABC working solution into each well, cover the plate and incubate at 37°C for 30 min.
11.	Remove the cover and wash plate 5 times with Wash buffer, and each time let the wash buffer stay in the wells for 1-2 min.
12.	Add 90 µL of TMB substrate into each well, cover the plate and incubate at 37°C in dark within 10-20 min. (Note: This incubation time is for reference use only, the optimal time should be determined by end user.) And the shades of blue can be seen in the first 3-4 wells (with most concentrated standard solutions), the other wells show no obvious color.
13.	Add 50 µL of Stop solution into each well and mix thoroughly. The color changes into yellow immediately.
14.	Read the O.D. absorbance at 450 nm in a microplate reader immediately after adding the stop solution.

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.