Human Dicer ELISA Kit (HUFI00521)- High Sensitivity

Product Name:	Human Dicer ELISA Kit
Product Code:	HUFI00521
Size:	96 Assays
Alias:	DICER1, DCR1, MNG1, Dicer, HERNA, RMSE2
Detection method:	Sandwich ELISA, Double Antibody
Application:	This immunoassay kit allows for the in vitro quantitative determination of Human DICER1 concentrations in serum plasma and other biological fluids.
Sensitivity:	0.188ng/ml
Range:	0.313-20ng/ml
Storage:	4°C for 6 months
Note:	For Research Use Only

Recovery:

Matrices listed below were spiked with certain level of Human DICER1 and the recovery rates were calculated by comparing the measured value to the expected amount of Human DICER1 in samples.

Matrix	Recovery range(%)	Average(%)
serum(n=5)	86-95	91
EDTA plasma(n=5)	89-101	94
UFH plasma(n=5)	90-103	97

Linearity:

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Human DICER1 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)	89-105%	86-105%	86-105%
EDTA plasma(n=5)	85-98%	83-100%	86-101%
UFH plasma(n=5)	81-99%	83-98%	80-100%

CV(%):

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

Q9UPY3

UniProt Protein Function:	DICER1: a cytoplasmic type-III RNase that plays a central role in RNA interference (RNAi) pathways to produce the active small RNAs that represses gene expression. Possesses a DEAD box RNA helicase motif in its amino terminus and a dsRNA-binding motif in the carboxy terminus. Dicer, along with Ago2 andTRBP, are the main components of the RNA-induced silencing complex (RISC). Fragile X syndrome repeats form RNA hairpins that are cut by Dicer but do not activate the interferon-inducible protein kinase, PKR. Four alternatively spliced isoforms have been described.
UniProt Protein Details:	Protein type:Helicase; Cell development/differentiation; Ribonuclease; RNA-binding; EC 3.1.26.3; RNA processing Chromosomal Location of Human Ortholog: 14q32.13 Cellular Component: growth cone; axon; cytoplasm; dendrite; ER-Golgi intermediate compartment; nucleus; cytosol Molecular Function:endoribonuclease activity; protein binding; miRNA binding; ribonuclease III activity; metal ion binding; double-stranded RNA binding; deoxyribonuclease I activity; helicase activity; ATP binding Biological Process: zygote asymmetric cell division; regulation of neuron differentiation; regulation of cell cycle; regulation of oligodendrocyte differentiation; miRNA-mediated gene silencing, miRNA loading onto RISC; negative regulation of transcription from RNA polymerase II promoter; embryonic hindlimb morphogenesis; olfactory bulb interneuron differentiation; post-embryonic development; cardiac muscle cell development; pre-microRNA processing; angiogenesis; DNA fragmentation during apoptosis; defense response to virus; regulation of viral genome replication; spleen development; positive regulation of myelination; positive regulation of Schwann cell differentiation; hair follicle morphogenesis; inner ear receptor cell development; mRNA stabilization; RNA interference, targeting of mRNA for destruction; multicellular organism growth; stem cell maintenance; RNA interference, conversion of ds siRNA to ss siRNA; spindle assembly; spinal cord motor neuron differentiation; miRNA-mediated gene silencing, production of miRNAs; myelin formation in the peripheral nervous system; branching morphogenesis of a tube; cartilage development; gene expression; nerve development; cerebral cortex development; RNA interference, production of siRNA; reproductive structure development; neurite morphogenesis; lung development; myoblast cell differentiation involved in skeletal muscle regeneration Disease: Pleuropulmonary Blastoma; Goiter, Multinodular 1, With Or Without Sertoli-leydig Cell Tumors; Rhabdomyosarcoma, Embryonal, 2
NCBI Summary:	This gene encodes a protein possessing an RNA helicase motif containing a DEXH box in its amino terminus and an RNA motif in the carboxy terminus. The encoded protein functions as a ribonuclease and is required by the RNA interference and small temporal RNA (stRNA) pathways to produce the active small RNA component that represses gene expression. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2010]
UniProt Code:	Q9UPY3
NCBI GenInfo Identifier:	257051056
NCBI Gene ID:	23405
NCBI Accession:	Q9UPY3.3
UniProt Secondary Accession:	Q9UPY3,O95943, Q9UQ02, A7E2D3, B3KRG4, E0AD28,
UniProt Related Accession:	Q9UPY3
Molecular Weight:	1922
NCBI Full Name:	Endoribonuclease Dicer
NCBI Synonym Full Names:	dicer 1, ribonuclease type III
NCBI Official Symbol:	DICER1
NCBI Official Synonym Symbols:	DCR1; MNG1; Dicer; HERNA; RMSE2; Dicer1e; K12H4.8-LIKE
NCBI Protein Information:	endoribonuclease Dicer; helicase MOI; Dicer1, Dcr-1 homolog; helicase with RNAse motif; dicer 1, double-stranded RNA-specific endoribonuclease
UniProt Protein Name:	Endoribonuclease Dicer
UniProt Synonym Protein Names:	Helicase with RNase motif; Helicase MOI
Protein Family:	Endoribonuclease
UniProt Gene Name:	DICER1
UniProt Entry Name:	DICER_HUMAN

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

Before adding to wells, equilibrate the SABC working solution and TMB substrate for at least 30 min at 37°C. When diluting samples and reagents, they must be mixed completely and evenly. It is recommended to plot a standard curve for each test.

Step	Protocol
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 Âµl 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 Âµl 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.

Human Dicer ELISA Kit (HUFI00521)

Description