Human Nucleoside diphosphate kinase A / NME1 ELISA Kit
- SKU:
- HUFI01308
- Product Type:
- ELISA Kit
- Size:
- 96 Assays
- Uniprot:
- P15531
- Sensitivity:
- 0.094ng/ml
- Range:
- 0.156-10ng/ml
- ELISA Type:
- Sandwich
- Synonyms:
- NME1, Nucleoside diphosphate kinase A, NDK A, NDP kinase A, nm23-H1, Tumor metastatic process-associated protein, Granzyme A-activated Dnase, GAAD, Metastasis inhibition factor nm23
- Reactivity:
- Human
- Research Area:
- Developmental Biology
Frequently bought together:
Description
Human Nucleoside diphosphate kinase A / NME1 ELISA Kit
NME1 was discovered due to low mRNA transcript levels in highly metastatic cells. Nucleoside diphosphate kinase (NDK) exists as a hexamer made up of isoforms 'A' and 'B' (encoded by NME2). NME1 mutations have been found in aggressive neuroblastomas. Co-transcription of NME1 and the downstream neighbouring gene (NME2) results in naturally occurring transcripts (NME1-NME2) that encode a fusion protein composed of sequences that share identity with each individual gene product. Anal Canal Carcinoma and Larynx Cancer are two diseases linked to NME1. The superpathway of pyrimidine deoxyribonucleotide de novo biosynthesis and the Zidovudine Pathway, Pharmacokinetics/Pharmacodynamics are two related pathways associated with NME1.
| Product Name: | Human Nucleoside diphosphate kinase A / NME1 ELISA Kit |
| Product Code: | HUFI01308 |
| Size: | 96 Assays |
| Alias: | NME1, Nucleoside diphosphate kinase A, NDK A, NDP kinase A, nm23-H1, Tumor metastatic process-associated protein, Granzyme A-activated Dnase, GAAD, Metastasis inhibition factor nm23 |
| Detection method: | Sandwich ELISA, Double Antibody |
| Application: | This immunoassay kit allows for the in vitro quantitative determination of Human NME1 concentrations in serum plasma and other biological fluids. |
| Sensitivity: | 0.094ng/ml |
| Range: | 0.156-10ng/ml |
| Storage: | 4°C for 6 months |
| Note: | For Research Use Only |
| Recovery: | Matrices listed below were spiked with certain level of Human NME1 and the recovery rates were calculated by comparing the measured value to the expected amount of Human NME1 in samples. | ||||||||||||||||
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| Linearity: | The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Human NME1 and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected. | ||||||||||||||||
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| 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 | P15531 |
| UniProt Protein Function: | NME1: an enzyme with multiple activities including histidine protein kinase, nucleoside-diphosphate kinase, serine/threonine-specific protein kinase, geranyl and farnesyl pyrophosphate kinase and 3'-5' exonuclease activities. Plays a major role in the synthesis of nucleoside triphosphates other than ATP. The ATP gamma phosphate is transferred to the NDP beta phosphate via a ping-pong mechanism, using a phosphorylated active-site intermediate. Involved in cell proliferation, differentiation and development, G protein-coupled receptor endocytosis, cytotoxic T cell and NK cell-mediated cell death, and gene expression. Required for neural development including neural patterning and cell fate determination. During granzyme A (GZMA)-mediated cell death, works in concert with TREX1. NME1 nicks one strand of DNA and TREX1 removes bases from the free 3' end to enhance DNA damage and prevent DNA end reannealing and rapid repair. Three alternatively spliced human proteins have been reported. |
| UniProt Protein Details: | Protein type:Kinase, other; EC 2.7.4.6; Tumor suppressor; Nucleotide Metabolism - pyrimidine; Kinase, nucleoside diphosphate; Protein kinase, histidine; Nucleotide Metabolism - purine; Other group; NDK family Chromosomal Location of Human Ortholog: 17q21.3 Cellular Component: cytoplasm; cytosol; membrane; nucleus Molecular Function:ATP binding; deoxyribonuclease activity; GTP binding; identical protein binding; magnesium ion binding; nucleoside diphosphate kinase activity; protein binding; ribosomal small subunit binding Biological Process: negative regulation of cell proliferation; nucleobase, nucleoside and nucleotide interconversion; nucleoside triphosphate biosynthetic process; positive regulation of DNA binding; positive regulation of epithelial cell proliferation; purine nucleotide metabolic process; pyrimidine nucleotide metabolic process; regulation of apoptosis Disease: Neuroblastoma, Susceptibility To |
| NCBI Summary: | This gene (NME1) was identified because of its reduced mRNA transcript levels in highly metastatic cells. Nucleoside diphosphate kinase (NDK) exists as a hexamer composed of 'A' (encoded by this gene) and 'B' (encoded by NME2) isoforms. Mutations in this gene have been identified in aggressive neuroblastomas. Two transcript variants encoding different isoforms have been found for this gene. Co-transcription of this gene and the neighboring downstream gene (NME2) generates naturally-occurring transcripts (NME1-NME2), which encodes a fusion protein comprised of sequence sharing identity with each individual gene product. [provided by RefSeq, Jul 2008] |
| UniProt Code: | P15531 |
| NCBI GenInfo Identifier: | 127981 |
| NCBI Gene ID: | 4830 |
| NCBI Accession: | P15531.1 |
| UniProt Secondary Accession: | P15531,Q6FGK3, Q86XQ2, Q9UDJ6, |
| UniProt Related Accession: | P15531 |
| Molecular Weight: | 30,137 Da |
| NCBI Full Name: | Nucleoside diphosphate kinase A |
| NCBI Synonym Full Names: | NME/NM23 nucleoside diphosphate kinase 1 |
| NCBI Official Symbol: | NME1 |
| NCBI Official Synonym Symbols: | NB; AWD; NBS; GAAD; NDKA; NM23; NDPKA; NDPK-A; NM23-H1 |
| NCBI Protein Information: | nucleoside diphosphate kinase A |
| UniProt Protein Name: | Nucleoside diphosphate kinase A |
| UniProt Synonym Protein Names: | Granzyme A-activated DNase; GAAD; Metastasis inhibition factor nm23; NM23-H1; Tumor metastatic process-associated protein |
| Protein Family: | Nucleoside diphosphate kinase |
| UniProt Gene Name: | NME1 |
| UniProt Entry Name: | NDKA_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. |
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