Product Name:	Human TRIM5 (Tripartite motif-containing protein 5) ELISA Kit
Product Code:	HUFI05952
Size:	96 Assays
Alias:	Tripartite motif-containing protein 5 (EC:2.3.2.27) ELISA Kit, RING finger protein 88 ELISA Kit, RING-type E3 ubiquitin transferase TRIM5 ELISA Kit, TRIM5 ELISA Kit, RNF88 ELISA Kit
Detection method:	Sandwich ELISA, Double Antibody
Application:	This immunoassay kit allows for the in vitro quantitative determination of Human TRIM5 (Tripartite motif-containing protein 5) concentrations in serum plasma and other biological fluids.
Sensitivity:	< 46.875pg/ml
Range:	78.125-5000pg/ml
Storage:	4°C for 6 months
Note:	For Research Use Only

Recovery:

Matrices listed below were spiked with certain level of Human TRIM5 (Tripartite motif-containing protein 5) and the recovery rates were calculated by comparing the measured value to the expected amount of Human TRIM5 (Tripartite motif-containing protein 5) in samples.

Matrix	Recovery range(%)	Average(%)
serum(n=5)	85-95	90
EDTA plasma(n=5)	91-96	94
heparin plasma(n=5)	86-102	93

Linearity:

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Human TRIM5 (Tripartite motif-containing protein 5) 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)	99-104%	92-102%	86-104%
EDTA plasma(n=5)	83-98%	82-101%	83-96%
UFH plasma(n=5)	84-99%	85-95%	85-97%

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 Protein Function:	TRIM5: Isoform Alpha is a retrovirus restriction factor, which mediates species-specific, early block to retrovirus infection. Targets retroviral capsid soon after entry into the cell, and prevents reverse transcription of the virus RNA genome. Isoform Alpha trimers may make multiple contacts with the hexameric lattice of CA proteins which constitute the surface of retrovirion core, and somehow inactivate the virus. Restricts efficiently infection by N-MLV, but not HIV-1. May have E3 ubiquitin-protein ligase activity. Belongs to the TRIM/RBCC family. 6 isoforms of the human protein are produced by alternative splicing.
UniProt Protein Details:	Protein type:EC 6.3.2.19; EC 6.3.2.-; Ubiquitin conjugating system; Ligase; Ubiquitin ligase Chromosomal Location of Human Ortholog: 11p15 Cellular Component: cytoplasm; cytosol Molecular Function:identical protein binding; protein binding; protein homodimerization activity; zinc ion binding; ubiquitin-protein ligase activity; pattern recognition receptor activity; ligase activity Biological Process: positive regulation of I-kappaB kinase/NF-kappaB cascade; viral reproduction; positive regulation of MAPKKK cascade; negative regulation of virion penetration into host cell; cytokine and chemokine mediated signaling pathway; innate immune response; positive regulation of transcription factor activity; pattern recognition receptor signaling pathway; activation of innate immune response; regulation of lipopolysaccharide-mediated signaling pathway; defense response to virus; activation of NF-kappaB transcription factor
NCBI Summary:	The protein encoded by this gene is a member of the tripartite motif (TRIM) family. The TRIM motif includes three zinc-binding domains, a RING, a B-box type 1 and a B-box type 2, and a coiled-coil region. The protein forms homo-oligomers via the coilel-coil region and localizes to cytoplasmic bodies. It appears to function as a E3 ubiquitin-ligase and ubiqutinates itself to regulate its subcellular localization. It may play a role in retroviral restriction. Multiple alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Dec 2009]
UniProt Code:	Q9C035
NCBI GenInfo Identifier:	283046694
NCBI Gene ID:	85363
NCBI Accession:	NP_149023.2
UniProt Secondary Accession:	Q9C035,Q2MLV4, Q2MLV8, Q2MLV9, Q2MLW1, Q2MLW3, Q2MLW4 A6NGQ1, A8WFA8, D3DQS8, D3DQS9, G3GJY1,
UniProt Related Accession:	Q9C035
Molecular Weight:	70.3 kDa
NCBI Full Name:	tripartite motif-containing protein 5 isoform alpha
NCBI Synonym Full Names:	tripartite motif containing 5
NCBI Official Symbol:	TRIM5
NCBI Official Synonym Symbols:	RNF88; TRIM5alpha
NCBI Protein Information:	tripartite motif-containing protein 5; ring finger protein 88; tripartite motif protein TRIM5; tripartite motif containing 5 transcript variant iota; tripartite motif containing 5 transcript variant kappa
UniProt Protein Name:	Tripartite motif-containing protein 5
UniProt Synonym Protein Names:	RING finger protein 88
Protein Family:	Tripartite motif-containing protein
UniProt Gene Name:	TRIM5
UniProt Entry Name:	TRIM5_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 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.