Human Glypican-3 (GPC3) ELISA Kit- High Sensitivity

Product Name:	Human Glypican-3 (GPC3) ELISA Kit
SKU:	HUEB0918
Size:	96T
Target:	Human Glypican-3 (GPC3)
Synonyms:	GTR2-2, Intestinal protein OCI-5, MXR7, OCI5
Assay Type:	Sandwich
Detection Method:	ELISA
Reactivity:	Human
Detection Range:	0.156-10ng/mL
Sensitivity:	0.045ng/mL

Intra CV:

6.4%

Inter CV:

8.7%

Linearity:

Sample	1:2	1:4	1:8	1:16
Serum(N=5)	87-95%	84-94%	84-93%	104-116%
EDTA Plasma(N=5)	106-119%	85-94%	84-94%	89-99%
Heparin Plasma(N=5)	82-93%	91-101%	98-107%	109-119%

Recovery:

Sample Type	Average(%)	Recovery Range(%)
Serum	104	98-110
Plasma	106	100-112

Function:

Cell surface proteoglycan that bears heparan sulfate (PubMed:14610063). Negatively regulates the hedgehog signaling pathway when attached via the GPI-anchor to the cell surface by competing with the hedgehog receptor PTC1 for binding to hedgehog proteins (By similarity). Binding to the hedgehog protein SHH triggers internalization of the complex by endocytosis and its subsequent lysosomal degradation (By similarity). Positively regulates the canonical Wnt signaling pathway by binding to the Wnt receptor Frizzled and stimulating the binding of the Frizzled receptor to Wnt ligands (PubMed:16227623, PubMed:24496449). Positively regulates the non-canonical Wnt signaling pathway (By similarity). Binds to CD81 which decreases the availability of free CD81 for binding to the transcriptional repressor HHEX, resulting in nuclear translocation of HHEX and transcriptional repression (By similarity). Inhibits the dipeptidyl peptidase activity of DPP4 (PubMed:17549790). Plays a role in limb patterning and skeletal development by controlling the cellular response to BMP4 (By similarity). Modulates the effects of growth factors BMP2, BMP7 and FGF7 on renal branching morphogenesis (By similarity). Required for coronary vascular development (By similarity). Plays a role in regulating cell movements during gastrulation (By similarity).

Uniprot:	P51654
Sample Type:	Serum, plasma, tissue homogenates, cell culture supernates and other biological fluids
Specificity:	Natural and recombinant human Glypican-3
Sub Unit:	Heterodimer; disulfide-linked (PubMed:14610063). Cleavage by a furin-like convertase results in production of alpha and beta chains which form a disulfide-linked heterodimer (PubMed:14610063). Interacts with DPP4 (PubMed:17549790). Interacts with FGF2 (By similarity). Interacts with WNT5A (PubMed:14610063). Also interacts with WNT3A and WNT7B (PubMed:16227623). Interacts with hedgehog protein SHH; the heparan sulfate chains are not required for the interaction (By similarity). Also interacts with hedgehog protein IHH (By similarity). Interacts with CD81 (By similarity). Interacts with Wnt receptors FZD4, FZD7 and FZD8; the heparan sulfate chains are required for the interaction (PubMed:24496449).
Research Area:	Cancer
Subcellular Location:	Cell membrane Lipid-anchor GPI-anchor Extracellular side
Storage:	Please see kit components below for exact storage details
Note:	For research use only

UniProt Protein Function:	GPC3: Cell surface proteoglycan that bears heparan sulfate. Inhibits the dipeptidyl peptidase activity of DPP4. May be involved in the suppression/modulation of growth in the predominantly mesodermal tissues and organs. May play a role in the modulation of IGF2 interactions with its receptor and thereby modulate its function. May regulate growth and tumor predisposition. Defects in GPC3 are the cause of Simpson-Golabi-Behmel syndrome type 1 (SGBS1); also known as Simpson dysmorphia syndrome (SDYS). SGBS is a condition characterized by pre- and postnatal overgrowth (gigantism) with visceral and skeletal anomalies. Belongs to the glypican family.
UniProt Protein Details:	Protein type:Membrane protein, GPI anchor; Motility/polarity/chemotaxis Chromosomal Location of Human Ortholog: Xq26.1 Cellular Component: extracellular space; proteinaceous extracellular matrix; lysosomal lumen; anchored to plasma membrane; integral to plasma membrane; Golgi lumen; plasma membrane Molecular Function:heparan sulfate proteoglycan binding; protein binding Biological Process: phototransduction, visible light; anatomical structure morphogenesis; glycosaminoglycan metabolic process; negative regulation of peptidase activity; pathogenesis; positive regulation of endocytosis; osteoclast differentiation; embryonic hindlimb morphogenesis; body morphogenesis; bone mineralization; chondroitin sulfate metabolic process; positive regulation of glucose import; glycosaminoglycan biosynthetic process; glycosaminoglycan catabolic process; ureteric bud branching; negative regulation of smoothened signaling pathway; carbohydrate metabolic process; positive regulation of protein catabolic process; positive regulation of smoothened signaling pathway; retinoid metabolic process; positive regulation of BMP signaling pathway; negative regulation of growth; anterior/posterior axis specification; negative regulation of epithelial cell proliferation; lung development Disease: Simpson-golabi-behmel Syndrome, Type 1; Wilms Tumor 1
NCBI Summary:	Cell surface heparan sulfate proteoglycans are composed of a membrane-associated protein core substituted with a variable number of heparan sulfate chains. Members of the glypican-related integral membrane proteoglycan family (GRIPS) contain a core protein anchored to the cytoplasmic membrane via a glycosyl phosphatidylinositol linkage. These proteins may play a role in the control of cell division and growth regulation. The protein encoded by this gene can bind to and inhibit the dipeptidyl peptidase activity of CD26, and it can induce apoptosis in certain cell types. Deletion mutations in this gene are associated with Simpson-Golabi-Behmel syndrome, also known as Simpson dysmorphia syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq]
UniProt Code:	P51654
NCBI GenInfo Identifier:	2599578
NCBI Gene ID:	2719
NCBI Accession:
UniProt Related Accession:	P51654,Q2L880,Q2L882,Q53H15,Q8IYG2
Molecular Weight:	65,563 Da
NCBI Full Name:	glypican 3
NCBI Synonym Full Names:	glypican 3
NCBI Official Symbol:	GPC3
NCBI Official Synonym Symbols:	SGB; DGSX; MXR7; SDYS; SGBS; OCI-5; SGBS1; GTR2-2; GPC3
NCBI Protein Information:	glypican-3; secreted glypican-3; glypican proteoglycan 3; intestinal protein OCI-5; heparan sulphate proteoglycan
UniProt Protein Name:	Glypican-3
UniProt Synonym Protein Names:	GTR2-2; Intestinal protein OCI-5; MXR7
Protein Family:	Glypican
UniProt Gene Name:	GPC3
UniProt Entry Name:	GPC3_HUMAN

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.

ELISA	Antibodies
Human GPC3 (Glypican 3) ELISA Kit	Anti-Glypican 3 Antibody (CAB11686)
Human GPC3 (Glypican 3) CLIA Kit (HUES00957)	Anti-GPC3 Antibody (CAB12383)
	Anti-GPC3 Antibody (CAB12384)
	Anti-GPC3 Antibody (CAB13988)
	Anti-Glypican 3 Antibody (CAB1946)

Human Glypican-3 (GPC3) ELISA Kit (HUEB0918)

Description