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1x first strand buffer  (Thermo Fisher)


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    Thermo Fisher 1x first strand buffer
    1x First Strand Buffer, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 95/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/first+strand+buffer/Tris+EDTA+buffer%2C+for+molecular+biology%2C+DNAse%2C+RNAse%2C+Protease+free+ready+to+use%2C+pH+8%2E0/pm42002808-95-17-21
    Average 95 stars, based on 1 article reviews
    1x first strand buffer - by Bioz Stars, 2026-09
    95/100 stars

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    Related Articles

    Reverse Transcription:

    Article Title: CD13 is a bona-fide marker of bovine pre-adipocytes with potential in cultivated fat applications.
    Article Snippet: RNA (300 ng) was incubated with 0.5 μl random primers (250ng/μl, Promega, 1181), 1 μl dNTPs (10mM, Invitrogen, 18427- 013) and nuclease free-water in a thermocycler (Biometra) at 65 °C for 5 min, followed by 5 min at 4 °C. .. Then, 1 μl DTT (0.1 M, Invitrogen, 18080-93), 1 μl RNasin Plus RNase inhibitor (40 U/μL, Promega, N2611), 1 μl SuperScript III reverse transcriptase (Invitrogen, 18080-93), and 4 μl first strand buffer (5X, Invitrogen, 18080-93) were added and samples incubated at 25 °C for 5 min, followed by 50 °C for 60 min, 70 °C for 15 min and a cooling step at 4 °C for 5 min. No-templateand a no-RT-controls were included. cDNA was kept frozen at –20 °C. .. Duplicate cDNA samples (2 μl, 1/40 dilution) were combined with 5 μl SensiFAST SYBR green (Kit, Meridian Bioscience, BIO94020), forward and reverse primer (10 μM, 0.4 μl each, Supplementary Table 5), and 2.2 μl nuclease-free water, and subjected to 95 °C x 2 min, followed by 40 cycles of 95 °C x 5 sec, 60 °C x 11 sec and 72 °C x 5 sec, and a final incubation at 95 °C x 1 min, 60 °C x 30 sec and 95 °C x 30 sec in a AriaMx Real-time PCR System (Agilent).

    Article Title: cxcl18b -defined transitional state-specific nitric oxide drives injury-induced Müller glia cell-cycle re-entry in the zebrafish retina
    Article Snippet: .. Interesting cells were collected into a 1.5 ml tube containing lysis buffer (20 mg/ml PK in TE buffer) and total RNA was isolated using this lysis buffer. cDNA synthesis was conducted by adding RT mix containing: 200 U Superscript II reverse transcriptase (Invitrogen, 18064‐014), 1 × First‐strand buffer (Invitrogen, 18064‐014), 5 mM DTT (Invitrogen, 18064‐014), 20 U Recombinant RNase inhibitor (Clontech, 2313A), 6 mM MgCl 2 (Sigma, M8266), 1 μM TSO ( ); 8% PEG8000 (Sigma, P1458). ..

    Article Title: Impaired function of Vγ9Vδ2 T cells in frail elderly.
    Article Snippet: .. The RT reaction mixture contained 0.5 μL SuperScript II reverse transcriptase (200 U/μL, Invitrogen), 0.25 μL RNase inhibitor (40 U/μL, Clontech), 2 μL 5× SuperScript II First-Strand Buffer (Invitrogen), 0.5 μL DTT (0.1 M, Invitrogen), 2 μL Betaine (5 M, Sigma), 0.06 μL MgCl2 (1 M, Sigma), and 0.1 μL TSO (100 μM final concentration). ..

    Article Title: Compositions, devices, systems, and methods for using a nanopore
    Article Snippet: Five micrograms of mRNA is mixed with 1 mg random primer (Life Technologies), incubated at 70° C. for 10 minutes, and lyophilized. .. The lyophilized sample is resuspended in 50 ml of 1× first strand buffer (cDNA Synthesis systems; Life Technologies) containing a dNTP mix, [a-32 P]dCTP, dithiothreitol, and MMLV reverse transcriptase (Stratagene), and incubated at 42° C. for 1-2 hours. ..

    Article Title: Pharmacological perturbation of splicing elicits SMG1 reduction: Implications for cancer therapy
    Article Snippet: After RNA quantification using NanoDrop, 4.000 μg of RNA were used for cDNA generation, by mixing 4.000 μg in 13 μL RNasa free water with 1 μL of GeneAmp dNTP Blend 100 mM (Applied Biosystems) and 1 μL of Random Hexamer (Invitrogen). .. The mix was incubated for 5 minutes in 65°C, and, after that, 1 μL of RNase OUT Recombinant Ribonuclease Inhibitor, 1 μL of M-MLV Reverse Transcriptase, 1 μL of 0.1M DTT, and 4 μL 5× First Strand Buffer (all from Invitrogen) were added in order to perform reverse transcriptase PCR in the following conditions: 25°C, 10 minutes; 37°C, 50 minutes; 70°C, 15 minutes. ..

    Article Title: A cocktail vaccine with monkeypox virus antigens confers protection without selecting mutations in potential immune evasion genes in the vaccinia WR strain challenge.
    Article Snippet: Total RNA was reverse transcribed with random nonamer primers (Sigma) as previously established (61, 65). .. The 20 μL cDNA synthesis system contained the following: 10 μL RNA template, 4 μL 5× first-strand buffer, 1 μL random nonamers (Sigma), 1 μL 10 mM dNTP mix, 2 μL 0.1 M DTT, 1 μL RNaseOUT (Thermo Fisher), and 1 μL SuperScript II reverse transcriptase (Invitrogen). .. The reaction was carried out at 42°C for 60 min followed by enzyme inactivation at 70°C for 15 min. Target amplification was employed using Phusion high-fidelity DNA polymerase (Thermo Fisher) under standard cycling conditions.

    Incubation:

    Article Title: CD13 is a bona-fide marker of bovine pre-adipocytes with potential in cultivated fat applications.
    Article Snippet: RNA (300 ng) was incubated with 0.5 μl random primers (250ng/μl, Promega, 1181), 1 μl dNTPs (10mM, Invitrogen, 18427- 013) and nuclease free-water in a thermocycler (Biometra) at 65 °C for 5 min, followed by 5 min at 4 °C. .. Then, 1 μl DTT (0.1 M, Invitrogen, 18080-93), 1 μl RNasin Plus RNase inhibitor (40 U/μL, Promega, N2611), 1 μl SuperScript III reverse transcriptase (Invitrogen, 18080-93), and 4 μl first strand buffer (5X, Invitrogen, 18080-93) were added and samples incubated at 25 °C for 5 min, followed by 50 °C for 60 min, 70 °C for 15 min and a cooling step at 4 °C for 5 min. No-templateand a no-RT-controls were included. cDNA was kept frozen at –20 °C. .. Duplicate cDNA samples (2 μl, 1/40 dilution) were combined with 5 μl SensiFAST SYBR green (Kit, Meridian Bioscience, BIO94020), forward and reverse primer (10 μM, 0.4 μl each, Supplementary Table 5), and 2.2 μl nuclease-free water, and subjected to 95 °C x 2 min, followed by 40 cycles of 95 °C x 5 sec, 60 °C x 11 sec and 72 °C x 5 sec, and a final incubation at 95 °C x 1 min, 60 °C x 30 sec and 95 °C x 30 sec in a AriaMx Real-time PCR System (Agilent).

    Article Title: Compositions, devices, systems, and methods for using a nanopore
    Article Snippet: Five micrograms of mRNA is mixed with 1 mg random primer (Life Technologies), incubated at 70° C. for 10 minutes, and lyophilized. .. The lyophilized sample is resuspended in 50 ml of 1× first strand buffer (cDNA Synthesis systems; Life Technologies) containing a dNTP mix, [a-32 P]dCTP, dithiothreitol, and MMLV reverse transcriptase (Stratagene), and incubated at 42° C. for 1-2 hours. ..

    Article Title: Pharmacological perturbation of splicing elicits SMG1 reduction: Implications for cancer therapy
    Article Snippet: After RNA quantification using NanoDrop, 4.000 μg of RNA were used for cDNA generation, by mixing 4.000 μg in 13 μL RNasa free water with 1 μL of GeneAmp dNTP Blend 100 mM (Applied Biosystems) and 1 μL of Random Hexamer (Invitrogen). .. The mix was incubated for 5 minutes in 65°C, and, after that, 1 μL of RNase OUT Recombinant Ribonuclease Inhibitor, 1 μL of M-MLV Reverse Transcriptase, 1 μL of 0.1M DTT, and 4 μL 5× First Strand Buffer (all from Invitrogen) were added in order to perform reverse transcriptase PCR in the following conditions: 25°C, 10 minutes; 37°C, 50 minutes; 70°C, 15 minutes. ..

    Amplification:

    Article Title: Nucleotide analogues
    Article Snippet: “Phospho” This lane was loaded with the amplification product obtained from amplifying genomic RNA from the 2019 Novel Coronavirus; Strain: 2019-nCoV/USA-WA1/2020 (Reference: ATCC-VR-1986D, ATCC), using the RdRp catalytic domain of RNA-directed RNA polymerase (Reference: PX-COV-P006, ProteoGenix) of SARS-CoV2 and the RNA primers (same as the lane “RNA Primer”), using the 10× First Strand Buffer and RNase Inhibitor from Amino Allyl MessageAmpTM II aRNA Amplification Kit (Reference: AM1753, Thermo), and rNTPs in equimolar amounts, except that the standard amount for rATP was split 50:50 between rATP and Compound C. “Fluoro” This lane was loaded with the amplification product obtained from amplifying genomic RNA from the 2019 Novel Coronavirus; Strain: 2019-nCoV/USA-WA1/2020 (Reference: ATCC-VR-1986D, ATCC), using the RdRp catalytic domain of RNA-directed RNA polymerase (Reference: PX-COV-P006, ProteoGenix) of SARS-CoV2 and the RNA primers (same as the lane “RNA Primer”), using the 10× First Strand Buffer and RNase Inhibitor from Amino Allyl MessageAmpTM II aRNA Amplification Kit (Reference: AM1753, Thermo), and rNTPs in equimolar amounts, except that the standard amount for rATP was split 50:50 between rATP and Compound B. .. “Hydroxy” This lane was loaded with the amplification product obtained from amplifying genomic RNA from the 2019 Novel Coronavirus; Strain: 2019-nCoV/USA-WA1/2020 (Reference: ATCC-VR-1986D, ATCC), using the RdRp catalytic domain of RNA-directed RNA polymerase (Reference: PX-COV-P006, ProteoGenix) of SARS-CoV2 and the RNA primers (same as the lane “RNA Primer”), using the 10× First Strand Buffer and RNase Inhibitor from Amino Allyl MessageAmpTM II aRNA Amplification Kit (Reference: AM1753, Thermo), and rNTPs in equimolar amounts, except that the standard amount for rATP was split 50:50 between rATP and Compound A. .. “Commercial Inhibitor” This lane was loaded with the amplification product obtained from amplifying genomic RNA from the 2019 Novel Coronavirus; Strain: 2019-nCoV/USA-WA1/2020 (Reference: ATCC-VR-1986D, ATCC), using the NSP12/RdRp catalytic domain of RNA-directed RNA polymerase (Reference: PX-COV-P006, ProteoGenix) of SARS-CoV2 and the RNA primers (same as the lane “RNA Primer”), using the 10× First Strand Buffer and RNase Inhibitor from Amino Allyl MessageAmpTM II aRNA Amplification Kit (Reference: AM1753, Thermo), and rNTPs, in equimolar amounts, except that the standard amount for rATP was split 50:50 between rATP and the commercial inhibitor.

    Lysis:

    Article Title: cxcl18b -defined transitional state-specific nitric oxide drives injury-induced Müller glia cell-cycle re-entry in the zebrafish retina
    Article Snippet: .. Interesting cells were collected into a 1.5 ml tube containing lysis buffer (20 mg/ml PK in TE buffer) and total RNA was isolated using this lysis buffer. cDNA synthesis was conducted by adding RT mix containing: 200 U Superscript II reverse transcriptase (Invitrogen, 18064‐014), 1 × First‐strand buffer (Invitrogen, 18064‐014), 5 mM DTT (Invitrogen, 18064‐014), 20 U Recombinant RNase inhibitor (Clontech, 2313A), 6 mM MgCl 2 (Sigma, M8266), 1 μM TSO ( ); 8% PEG8000 (Sigma, P1458). ..

    Isolation:

    Article Title: cxcl18b -defined transitional state-specific nitric oxide drives injury-induced Müller glia cell-cycle re-entry in the zebrafish retina
    Article Snippet: .. Interesting cells were collected into a 1.5 ml tube containing lysis buffer (20 mg/ml PK in TE buffer) and total RNA was isolated using this lysis buffer. cDNA synthesis was conducted by adding RT mix containing: 200 U Superscript II reverse transcriptase (Invitrogen, 18064‐014), 1 × First‐strand buffer (Invitrogen, 18064‐014), 5 mM DTT (Invitrogen, 18064‐014), 20 U Recombinant RNase inhibitor (Clontech, 2313A), 6 mM MgCl 2 (Sigma, M8266), 1 μM TSO ( ); 8% PEG8000 (Sigma, P1458). ..

    cDNA Synthesis:

    Article Title: cxcl18b -defined transitional state-specific nitric oxide drives injury-induced Müller glia cell-cycle re-entry in the zebrafish retina
    Article Snippet: .. Interesting cells were collected into a 1.5 ml tube containing lysis buffer (20 mg/ml PK in TE buffer) and total RNA was isolated using this lysis buffer. cDNA synthesis was conducted by adding RT mix containing: 200 U Superscript II reverse transcriptase (Invitrogen, 18064‐014), 1 × First‐strand buffer (Invitrogen, 18064‐014), 5 mM DTT (Invitrogen, 18064‐014), 20 U Recombinant RNase inhibitor (Clontech, 2313A), 6 mM MgCl 2 (Sigma, M8266), 1 μM TSO ( ); 8% PEG8000 (Sigma, P1458). ..

    Article Title: IL-4/STAT6-signaling Influences Local Inflammation and Regeneration Processes During Acute Pancreatitis and Promotes Fibrosis by a Direct Activation of Pancreatic Fibroblasts During Chronic Pancreatitis.
    Article Snippet: Total RNA was extracted from macrophages, fibroblasts as well as pancreatic tissue using Trizol reagent (15596026, life technologies) according to the manufacturer’s instructions. .. The RNA samples with an A260 /A280 ratio between 1.5 and 2.0 were used for the following cDNA synthesis reaction: 2 μg RNA; 5 μM OligodT primers; 75 ng random primers; 0.5 μM dNTP Mix; 1 × First Strand Buffer (18080044, Invitrogen); 10 μM DTT; 40 Units RNasin Ribonuclease Inhibitor (N251B, Promega) and 200 Units M-MLV RT (28025013, Invitrogen). .. The obtained cDNA was used as a template for quantitative PCR (qPCR) with SYBR Green PCR Master Mix (4309155, applied biosystems).

    Article Title: Compositions, devices, systems, and methods for using a nanopore
    Article Snippet: Five micrograms of mRNA is mixed with 1 mg random primer (Life Technologies), incubated at 70° C. for 10 minutes, and lyophilized. .. The lyophilized sample is resuspended in 50 ml of 1× first strand buffer (cDNA Synthesis systems; Life Technologies) containing a dNTP mix, [a-32 P]dCTP, dithiothreitol, and MMLV reverse transcriptase (Stratagene), and incubated at 42° C. for 1-2 hours. ..

    Article Title: A cocktail vaccine with monkeypox virus antigens confers protection without selecting mutations in potential immune evasion genes in the vaccinia WR strain challenge.
    Article Snippet: Total RNA was reverse transcribed with random nonamer primers (Sigma) as previously established (61, 65). .. The 20 μL cDNA synthesis system contained the following: 10 μL RNA template, 4 μL 5× first-strand buffer, 1 μL random nonamers (Sigma), 1 μL 10 mM dNTP mix, 2 μL 0.1 M DTT, 1 μL RNaseOUT (Thermo Fisher), and 1 μL SuperScript II reverse transcriptase (Invitrogen). .. The reaction was carried out at 42°C for 60 min followed by enzyme inactivation at 70°C for 15 min. Target amplification was employed using Phusion high-fidelity DNA polymerase (Thermo Fisher) under standard cycling conditions.

    Recombinant:

    Article Title: cxcl18b -defined transitional state-specific nitric oxide drives injury-induced Müller glia cell-cycle re-entry in the zebrafish retina
    Article Snippet: .. Interesting cells were collected into a 1.5 ml tube containing lysis buffer (20 mg/ml PK in TE buffer) and total RNA was isolated using this lysis buffer. cDNA synthesis was conducted by adding RT mix containing: 200 U Superscript II reverse transcriptase (Invitrogen, 18064‐014), 1 × First‐strand buffer (Invitrogen, 18064‐014), 5 mM DTT (Invitrogen, 18064‐014), 20 U Recombinant RNase inhibitor (Clontech, 2313A), 6 mM MgCl 2 (Sigma, M8266), 1 μM TSO ( ); 8% PEG8000 (Sigma, P1458). ..

    Article Title: Pharmacological perturbation of splicing elicits SMG1 reduction: Implications for cancer therapy
    Article Snippet: After RNA quantification using NanoDrop, 4.000 μg of RNA were used for cDNA generation, by mixing 4.000 μg in 13 μL RNasa free water with 1 μL of GeneAmp dNTP Blend 100 mM (Applied Biosystems) and 1 μL of Random Hexamer (Invitrogen). .. The mix was incubated for 5 minutes in 65°C, and, after that, 1 μL of RNase OUT Recombinant Ribonuclease Inhibitor, 1 μL of M-MLV Reverse Transcriptase, 1 μL of 0.1M DTT, and 4 μL 5× First Strand Buffer (all from Invitrogen) were added in order to perform reverse transcriptase PCR in the following conditions: 25°C, 10 minutes; 37°C, 50 minutes; 70°C, 15 minutes. ..

    Concentration Assay:

    Article Title: Impaired function of Vγ9Vδ2 T cells in frail elderly.
    Article Snippet: .. The RT reaction mixture contained 0.5 μL SuperScript II reverse transcriptase (200 U/μL, Invitrogen), 0.25 μL RNase inhibitor (40 U/μL, Clontech), 2 μL 5× SuperScript II First-Strand Buffer (Invitrogen), 0.5 μL DTT (0.1 M, Invitrogen), 2 μL Betaine (5 M, Sigma), 0.06 μL MgCl2 (1 M, Sigma), and 0.1 μL TSO (100 μM final concentration). ..

    Polymerase Chain Reaction:

    Article Title: Pharmacological perturbation of splicing elicits SMG1 reduction: Implications for cancer therapy
    Article Snippet: After RNA quantification using NanoDrop, 4.000 μg of RNA were used for cDNA generation, by mixing 4.000 μg in 13 μL RNasa free water with 1 μL of GeneAmp dNTP Blend 100 mM (Applied Biosystems) and 1 μL of Random Hexamer (Invitrogen). .. The mix was incubated for 5 minutes in 65°C, and, after that, 1 μL of RNase OUT Recombinant Ribonuclease Inhibitor, 1 μL of M-MLV Reverse Transcriptase, 1 μL of 0.1M DTT, and 4 μL 5× First Strand Buffer (all from Invitrogen) were added in order to perform reverse transcriptase PCR in the following conditions: 25°C, 10 minutes; 37°C, 50 minutes; 70°C, 15 minutes. ..



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    a Schematic illustration of the SCAN-seq method. Briefly, control and Hnrnpm cKO GV oocytes were lysed to release <t>mRNAs.</t> <t>First-strand</t> cDNAs were synthesized using a 24-nt barcode RT primer. Following amplification, the cDNAs derived from multiple cells were combined, pooled together, and purified. Subsequently, the full-length cDNAs were used for the construction of nanopore libraries and sequencing. The mouse, oocyte, and nucleic acid schematics are modified adaptations of original resources from SciDraw and Servier Medical Art, respectively, and are employed under a CC BY 4.0 license. b – j PCR and Sanger sequencing validation of genes ( Nlrp14, Meikin, Vrk1 , and Zar1l ) with novel isoforms identified in GV oocytes. Ref. Reference. Representative results shown in ( b – e ) were obtained from at least three independent experiments with similar results. Source data ( b – e ) are provided as a Source data file.
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    Image Search Results


    Journal: STAR Protocols

    Article Title: Protocol to isolate broadly neutralizing monoclonal antibodies against SARS-CoV-2 from human B cells

    doi: 10.1016/j.xpro.2025.104275

    Figure Lengend Snippet: RT mix-II

    Article Snippet: 5× First-Strand Buffer (part of the SuperScript III Reverse Transcriptase) , Thermo Fisher Scientific , Cat#18080044.

    Techniques:

    a Schematic illustration of the SCAN-seq method. Briefly, control and Hnrnpm cKO GV oocytes were lysed to release mRNAs. First-strand cDNAs were synthesized using a 24-nt barcode RT primer. Following amplification, the cDNAs derived from multiple cells were combined, pooled together, and purified. Subsequently, the full-length cDNAs were used for the construction of nanopore libraries and sequencing. The mouse, oocyte, and nucleic acid schematics are modified adaptations of original resources from SciDraw and Servier Medical Art, respectively, and are employed under a CC BY 4.0 license. b – j PCR and Sanger sequencing validation of genes ( Nlrp14, Meikin, Vrk1 , and Zar1l ) with novel isoforms identified in GV oocytes. Ref. Reference. Representative results shown in ( b – e ) were obtained from at least three independent experiments with similar results. Source data ( b – e ) are provided as a Source data file.

    Journal: Nature Communications

    Article Title: hnRNPM cooperates with BCAS2 to modulate alternative splicing during oocyte development

    doi: 10.1038/s41467-026-69176-8

    Figure Lengend Snippet: a Schematic illustration of the SCAN-seq method. Briefly, control and Hnrnpm cKO GV oocytes were lysed to release mRNAs. First-strand cDNAs were synthesized using a 24-nt barcode RT primer. Following amplification, the cDNAs derived from multiple cells were combined, pooled together, and purified. Subsequently, the full-length cDNAs were used for the construction of nanopore libraries and sequencing. The mouse, oocyte, and nucleic acid schematics are modified adaptations of original resources from SciDraw and Servier Medical Art, respectively, and are employed under a CC BY 4.0 license. b – j PCR and Sanger sequencing validation of genes ( Nlrp14, Meikin, Vrk1 , and Zar1l ) with novel isoforms identified in GV oocytes. Ref. Reference. Representative results shown in ( b – e ) were obtained from at least three independent experiments with similar results. Source data ( b – e ) are provided as a Source data file.

    Article Snippet: Then, each sample was mixed with 2.83 μL of reverse transcription mixture, comprising SuperScript IV reverse transcriptase (Invitrogen, 18090050), RNase inhibitor (Takara, Cat. 2313A), SuperScript IV first-strand buffer, 1 M betaine (Sigma-Aldrich, B0300-1VL), 100 mM DTT (Invitrogen, 18090050), 50 mM MgCl2 (Sangon, A610328-0500), and template-switching oligo primers.

    Techniques: Control, Synthesized, Amplification, Derivative Assay, Purification, Sequencing, Modification, Biomarker Discovery