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Abi prism 7300 sequence detector

Manufactured by Thermo Fisher Scientific
Sourced in United States

The ABI Prism 7300 Sequence Detector is a real-time PCR instrument designed for gene expression analysis, SNP genotyping, and allelic discrimination. The instrument uses fluorescent dye-based detection to monitor the amplification of target DNA sequences during the PCR process.

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62 protocols using abi prism 7300 sequence detector

1

Quantification of Stem Cell Markers

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RNA was extracted from frozen tumor specimens by using an RNeasy mini kit (Invitrogen), and cDNA was synthesized by using the Superscript II system (Fermentas) in accordance with the manufacturer's instructions. Quantification of SOX-2, NANOG, OCT-4 and GLI1 mRNA was conducted using the SYBR Green RT-PCR kit (Fermentas) and ABI PRISM 7300 sequence detector (Applied BioSystems, Foster City, CA) according to manufacturers' instructions. Gene expression levels were calculated according to the following formula: 2-rCT [rCT= Ct (target)-Ct (β-bactin)]. The amplification was performed using the following thermocycler parameters: initial denaturation at 95℃ for 15 min, followed by 30 cycles at 94℃ for 30 sec, 55℃ for 30 sec and 72℃ for 45 seconds. The results were analyzed with melting curve analysis software (Dissociation Curve 1.0; Applied BioSystems) provided with the ABI PRISM 7300 sequence detector. The expression of mRNA was normalized to that of the reference gene, GAPDH. Relative quantification of mRNA within the samples was examined using the comparative Ct method. The details of primers are given in Table 1. Each experiment was repeated three times to confirm the results.
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2

Optimized qRT-PCR Analysis of EndoC-βH2 Cells

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Total RNA was extracted from EndoC-βH2 cells by using the RNeasy Micro kit (Qiagen, Hilden, Germany). First-strand cDNA was prepared by employing the Maxima First Strand cDNA synthesis kit (Thermo Fisher, Waltham, MA, USA). Real-time PCR was performed using Power SYBR Green mix (Applied Biosystems, Foster City, CA, USA) with ABI Prism 7300 sequence detector (Applied Biosystems). Cyclophilin A transcript levels were used for the normalization of each target gene. The custom primers were designed with IDT Primer-Quest online software, and the amplification efficiency for each primer was determined with serial dilution of total cDNA from EndoC-βH2 cells (4 (link)).
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3

Quantitative Real-Time PCR Assay for Gene Expression

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Total RNA was isolated from the correspondent mice or human tissue using Trizol reagent (Sigma-Aldrich). The RNA was treated with DNase at 37 °C for 30 min and reverse-transcribed into cDNA using SuperScript® III Reverse Transcriptase (Invitrogen, Waltham, MA, USA).
Quantitative real-time PCR was performed to quantified gene expression. Assays were done using Power SYBR Green PCR Master Mix (Applied Biosystems, Walthman, MA, USA) and the corresponding specific primers: Serpin3n (Fw: 5′GGGATGATCAAGGAACTGGTCT3′, Rev: 5′CCGCGTAGAACTCAGACTTGAA3′), Clxcl10 (Fw: 5′CCAAGTGCTGCCGTCATTTTC3′, Rev: 5′GGCTCGCAGGGATGATTTCAA3′), Adora2A (Fw: 5′GCCATCCCATTCGCCATCA3′, Rev: 5′GCAATAGCCAAGAGGCTGAAGA3′), murine CD4 (Fw: 5′AGGTGATGGGACCCTACCTCTC3′, Rev: 5′GGGGCCACCACTTGAACTAC3′), Tgfα (Fw: 5′CACTCTGGGTACGTGGGTG3′, Rev: 5′CACAGGTGATAATGAGGACAGC3′, human CD4 (Fw: 5′CAAGGAGGCAAAGGTCTCGAA3′, Rev: 5′CGGCACCTGACACAGAAGA3′) andthe internal control 36B4 (Fw: 5′AACATCTCCCCCTTCTCCTT3′, Rev: 5′GAAGGCCTTGACCTTTTCAG3′). Real-time was carried out using an ABI Prism 7300 sequence detector (Applied Biosystems, Walthman, MA, USA) and data were analyzed using the Sequence Detection software v.3.0 (Applied Biosystems). Relative gene expression was calculated in reference to the control group using the DDCT method.
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4

qRT-PCR Analysis of Cell Polarity Genes

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qRT-PCR analysis was performed on cDNA synthesized from total RNA using the Superscript III cDNA synthesis system (Life Technologies). cDNA samples were then amplified using the SYBR green qPCR assay kit (Applied Biosystems) and the ABI Prism 7300 Sequence Detector (Applied Biosystems)(32 (link)). qPCR primers used for detection of CRB3, HUGL2, PATJ, CDC42, CTGF, CYR61, MYC, MUC1 and GAPDH are listed in Supplemental Table S1. Statistical significance was determined by the Student’s t-test.
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5

RNA Extraction and Real-Time PCR Analysis of Follicles

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Total RNA of follicles was extracted by TRIzol (TRI reagent, Sigma, Pool, UK) following IVM. A spectrophotometer was used to calculate the optical density (OD) of the samples and the RNA quantity was obtained. Super-script II kit (Fermentase, Sankt leon-rot, Germany) was used to produce the cDNA by Random Hexamer Primers that binds to mRNA as a template, predisposing RNA transcription with dNTPs by a reverse transcriptase enzyme. The real-time PCR process in triplicate using the cDNA from the follicles of different groups was performed using the ABI Prism 7300 Sequence Detector (Applied Biosystems, Foster, USA). The protocol of amplification were 45 cycles with the optimal reaction conditions of activating polymerase enzyme at 95°C for 10 min, denaturation cycle at 95°C for 15 min, and the annealing and elongation at 60°C (based on the primer temperature) for 60 sec (5). Moreover, the β -actin primer was considered as an internal control (Table I). The whole reaction was repeated in 45 cycles and three separate technical replicates were performed for each group.
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6

Quantitative Analysis of Heat Stress Response Genes

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The RNA was treated with DNase at 37°C for 30 min and reverse-transcribed into cDNA using SuperScript® III Reverse Transcriptase (Invitrogen, Carlsbad, CA, USA). Quantitative real-time PCR (QRT-PCR) was performed to quantified gene expression. All the assays were done in triplicate using Power SYBR Green PCR Master Mix (Applied Biosystems, Warrington, UK) and the corresponding specific primers for heat shock protein family A (Hsp70) member 1 A/B (HSPA1A/B; Fw: 5′-AGCCTTCCAGAAGCAGAGC-3′; Rev: 5′-GGTCGTTGGCGATGATCT-3′), 78-KDa glucose regulated protein (GRP78; Fw: 5′-ACCAACTGCTGAATCTTTGGAAT-3′; Rev: 5′-GAGCTGTGCAGAAACTCCGGCG-3′) and for the internal control 36B4 (5′-AACATCTCCCCCTTCTCCTT-3′; 5′-GAAGGCCTTGACCTTTTCAG-3′). Real-time was carried out using an ABI Prism 7300 sequence detector (Applied Biosystems, Foster City, CA, USA) and data were analyzed using the Sequence Detection software v.3.0 (Applied Biosystems, Foster City, CA, USA). The relative gene expression was calculated with reference to the control group using the DDCT method (Livak and Schmittgen, 2001 (link)).
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7

Chromatin Immunoprecipitation and Re-ChIP Protocol

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Soluble chromatin was precipitated with anti-MUC1-C (#HM-1630-P1ABX; Thermo Fisher Scientific), anti-MTA1 (#5647), anti-MBD3 (#14540), anti-CHD4 (#11912), anti-HDAC1 (#5356; Cell Signaling Technology), anti-MYC (#ab56), anti-H3K27ac (#ab4729; Abcam) or a control non-immune IgG (Santa Cruz Biotechnology). For re-ChIP analysis, anti-MUC1-C complexes from the primary ChIP were eluted and reprecipitated with anti-MYC. The precipitates were analyzed by qPCR using the Power SYBR Green PCR Master Mix and the ABI Prism 7300 sequence detector (Applied Biosystems). Data are reported as relative-fold enrichment compared to IgG (9 (link)). Primers used for ChIP qPCR are listed in Supplemental Table S2.
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8

Investigating miRNA-4461 Regulatory Mechanism

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HO8910 miR-4461 sponge or A2780 cells miR-4461 sponge and their control cells were planted into six-well plates for 48 h. Then total RNA from cells or tissues was extracted with the TRIzol reagent (Takara). SYBR PrimeScript TM miRNA RT-PCR Kit (TaKaRa Bio Group, Shiga, Japan) was used for miRNA reverse transcription and miRNA expression measuring. U6 RNA was used as the internal control for miRNA. The total mRNA was synthesized into cDNA by ThermoScript TM RT-PCR system (Invitrogen, 11146-057), and mRNA expression was measured by RT-PCR using the ABI PRISM 7300 sequence detector (Applied Biosystems). PCR conditions included 1 cycle at 95°C for 5 min, followed by up to 40 cycles of 95°C for 15 s (denaturation), 60°C for 30 s (annealing) and 72°C for 30 s (extension). β-actin was used as the internal reference for mRNA. The PTEN primer sequences were as follow: 5′ TCCCAGACATGACAGCCATC 3′, reverse: 5′ TGCTTTGAATCCAAAAACCTTACT 3′. The β-actin primer sequences were as follow: 5′ GGCCCAGAATGCAGTTCGCCTT 3′, reverse: 5′ AATGGCACCCTGCTCACGCA 3′. All data were normalized to the internal controls, and fold changes were calculated by the specific quantification method (2−ΔΔCT).
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9

Chromatin Immunoprecipitation Quantification

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Soluble chromatin was precipitated with anti-MUC1-C (NeoMarkers, Fremont, CA, USA), anti-E2F (Cell Signaling Technology, Danvers, MA, USA), anti-NF-κB p65 (Santa Cruz Biotechnology), anti-H3K27me3 (Abcam, Cambridge, MA, USA), anti-H3K27 (Abcam), or a control non-immune IgG (Santa Cruz Biotechnology). For re-ChIP analysis, complexes from the primary ChIP were eluted and re-immunoprecipitated with a secondary antibody. For real-time ChIP qPCR, the SYBR green system was used with the ABI Prism 7300 sequence detector (Applied Biosystems). Data are reported as relative-fold enrichment40 (link). Primers used for ChIP qPCR are listed in the Supplementary Table S2.
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10

Quantifying B Cell Gene Expression

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Extraction of total RNA, reverse-transcription procedures, design of primers, and cDNA amplification have been described previously [21] (link). Gene expression was analyzed using an ABI Prism 7300 Sequence Detector and ABI Prism Sequence Detection Software version 1.4 (Applied Biosystems). All PCR primers used for quantitative RT-PCR of TFs or κ0, λ0, and Vκ GLT are described in [21] (link), except for Obf1 (forward 5′-CCTGGCCACCTACAGCAC-3′, reverse 5′-GTGGAAGCAGAAA CCTCCAT-3′, obtained from the Roche Universal Probe Library).
Biotin-labeled cRNA was hybridized to the Mouse Gene 1.0 ST Array according to the manufacturer's instructions (Affymetrix); data were analyzed with BRB-ArrayTools (version 3.7.0, National Cancer Institute) using Affymetrix CEL files obtained from GCOS (Affymetrix). The RMA approach was used for normalization. The TIGR MultiExperiment Viewer software package (MeV version 4.8.1) was used to perform data analysis and visualize results [45] (link). One-way ANOVA analysis of the five experimental groups of B cells was used to identify genes significantly different from wild-type VH81X Tg Rag1−/− pre-B cells (p<0.01).
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