human rna Search Results


90
ATCC vr 1580dq
Cross-reaction evaluation of Lyo-CRISPR SARS-CoV-2 kit with other respiratory pathogens.
Vr 1580dq, supplied by ATCC, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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93
Twist Bioscience synthetic human coronavirus 229e rna
Cross-reaction evaluation of Lyo-CRISPR SARS-CoV-2 kit with other respiratory pathogens.
Synthetic Human Coronavirus 229e Rna, supplied by Twist Bioscience, used in various techniques. Bioz Stars score: 93/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Average 93 stars, based on 1 article reviews
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93
ATCC human rsv strain a2
Cross-reaction evaluation of Lyo-CRISPR SARS-CoV-2 kit with other respiratory pathogens.
Human Rsv Strain A2, supplied by ATCC, used in various techniques. Bioz Stars score: 93/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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93
ATCC total rna
Ongoing transcription of SVA_F1 subfamily members is demonstrated by ESTs and RT-PCR analyses. (A) ESTs (arrows) aligning specifically to the source element H10_1 and its descendants (DB277120, AA582071) and to MAST2–SVA junctions of a subset of SVA_F1 subfamily members. Extensions of the queries used to identify ESTs (black bars) are shown. (B) Transcriptional control of transduction group 1 members H20_1 and H1_F_160 is effected by external promoters. Identified ESTs match 5′ junctions of the SVA elements with primary 5′ transductions. MER57A is an internal portion of the nonautonomous retrovirus 1 (ERV1). (C) ESTs indicating ongoing transcription of source element HX_4. Those ESTs that correspond to the 3′-end (BI325030, AW627827) and the 3′ junction (BX110444) of HX_4 are also consistent with transcription of the HX_4 derivative H3_8 (Fig. 7C). 3′-Ends of sense ESTs BI325030 and BX110444 as well as the 5′-end of antisense EST BX373748 are directly at the polyadenylation sites of HX_4 and/or H3_8. SVA copies highlighted in red were verified to be source elements. (D) RT-PCR analyses confirm transcription of distinct SVA_F1 subfamily members. Agarose gel electrophoresis of H20_1 and HX_4/H3_8-specific RT-PCR products derived from <t>total</t> <t>RNA</t> from human tissues and NCCIT cells. Primer binding sites and extension of the RT-PCR products are indicated as short arrows and red bars, respectively, in B and C. To control for both successful cDNA synthesis and DNA-free RNA preparations, PCRs with GAPDH-specific, intron-spanning primers (see Methods) were performed on RNA preparations from each tissue before (−RT) and after (+RT) cDNA synthesis. PCR on genomic HeLa DNA served as a positive control. The 766- and 481-bp products originate from the unspliced GAPDH gene and a processed GAPDH pseudogene, respectively (Harper et al. 2003). Sizes of obtained PCR products are indicated and correspond to expected fragment sizes. RT, reverse transcriptase; M, size marker; NTC, no template control.
Total Rna, supplied by ATCC, used in various techniques. Bioz Stars score: 93/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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90
ATCC hrsv strain long
Ongoing transcription of SVA_F1 subfamily members is demonstrated by ESTs and RT-PCR analyses. (A) ESTs (arrows) aligning specifically to the source element H10_1 and its descendants (DB277120, AA582071) and to MAST2–SVA junctions of a subset of SVA_F1 subfamily members. Extensions of the queries used to identify ESTs (black bars) are shown. (B) Transcriptional control of transduction group 1 members H20_1 and H1_F_160 is effected by external promoters. Identified ESTs match 5′ junctions of the SVA elements with primary 5′ transductions. MER57A is an internal portion of the nonautonomous retrovirus 1 (ERV1). (C) ESTs indicating ongoing transcription of source element HX_4. Those ESTs that correspond to the 3′-end (BI325030, AW627827) and the 3′ junction (BX110444) of HX_4 are also consistent with transcription of the HX_4 derivative H3_8 (Fig. 7C). 3′-Ends of sense ESTs BI325030 and BX110444 as well as the 5′-end of antisense EST BX373748 are directly at the polyadenylation sites of HX_4 and/or H3_8. SVA copies highlighted in red were verified to be source elements. (D) RT-PCR analyses confirm transcription of distinct SVA_F1 subfamily members. Agarose gel electrophoresis of H20_1 and HX_4/H3_8-specific RT-PCR products derived from <t>total</t> <t>RNA</t> from human tissues and NCCIT cells. Primer binding sites and extension of the RT-PCR products are indicated as short arrows and red bars, respectively, in B and C. To control for both successful cDNA synthesis and DNA-free RNA preparations, PCRs with GAPDH-specific, intron-spanning primers (see Methods) were performed on RNA preparations from each tissue before (−RT) and after (+RT) cDNA synthesis. PCR on genomic HeLa DNA served as a positive control. The 766- and 481-bp products originate from the unspliced GAPDH gene and a processed GAPDH pseudogene, respectively (Harper et al. 2003). Sizes of obtained PCR products are indicated and correspond to expected fragment sizes. RT, reverse transcriptase; M, size marker; NTC, no template control.
Hrsv Strain Long, supplied by ATCC, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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98
Illumina Inc truseq stranded total rna library prep kit
Ongoing transcription of SVA_F1 subfamily members is demonstrated by ESTs and RT-PCR analyses. (A) ESTs (arrows) aligning specifically to the source element H10_1 and its descendants (DB277120, AA582071) and to MAST2–SVA junctions of a subset of SVA_F1 subfamily members. Extensions of the queries used to identify ESTs (black bars) are shown. (B) Transcriptional control of transduction group 1 members H20_1 and H1_F_160 is effected by external promoters. Identified ESTs match 5′ junctions of the SVA elements with primary 5′ transductions. MER57A is an internal portion of the nonautonomous retrovirus 1 (ERV1). (C) ESTs indicating ongoing transcription of source element HX_4. Those ESTs that correspond to the 3′-end (BI325030, AW627827) and the 3′ junction (BX110444) of HX_4 are also consistent with transcription of the HX_4 derivative H3_8 (Fig. 7C). 3′-Ends of sense ESTs BI325030 and BX110444 as well as the 5′-end of antisense EST BX373748 are directly at the polyadenylation sites of HX_4 and/or H3_8. SVA copies highlighted in red were verified to be source elements. (D) RT-PCR analyses confirm transcription of distinct SVA_F1 subfamily members. Agarose gel electrophoresis of H20_1 and HX_4/H3_8-specific RT-PCR products derived from <t>total</t> <t>RNA</t> from human tissues and NCCIT cells. Primer binding sites and extension of the RT-PCR products are indicated as short arrows and red bars, respectively, in B and C. To control for both successful cDNA synthesis and DNA-free RNA preparations, PCRs with GAPDH-specific, intron-spanning primers (see Methods) were performed on RNA preparations from each tissue before (−RT) and after (+RT) cDNA synthesis. PCR on genomic HeLa DNA served as a positive control. The 766- and 481-bp products originate from the unspliced GAPDH gene and a processed GAPDH pseudogene, respectively (Harper et al. 2003). Sizes of obtained PCR products are indicated and correspond to expected fragment sizes. RT, reverse transcriptase; M, size marker; NTC, no template control.
Truseq Stranded Total Rna Library Prep Kit, supplied by Illumina Inc, used in various techniques. Bioz Stars score: 98/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Average 98 stars, based on 1 article reviews
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94
ATCC hiv rna cat vr 3351sd atcc
Ongoing transcription of SVA_F1 subfamily members is demonstrated by ESTs and RT-PCR analyses. (A) ESTs (arrows) aligning specifically to the source element H10_1 and its descendants (DB277120, AA582071) and to MAST2–SVA junctions of a subset of SVA_F1 subfamily members. Extensions of the queries used to identify ESTs (black bars) are shown. (B) Transcriptional control of transduction group 1 members H20_1 and H1_F_160 is effected by external promoters. Identified ESTs match 5′ junctions of the SVA elements with primary 5′ transductions. MER57A is an internal portion of the nonautonomous retrovirus 1 (ERV1). (C) ESTs indicating ongoing transcription of source element HX_4. Those ESTs that correspond to the 3′-end (BI325030, AW627827) and the 3′ junction (BX110444) of HX_4 are also consistent with transcription of the HX_4 derivative H3_8 (Fig. 7C). 3′-Ends of sense ESTs BI325030 and BX110444 as well as the 5′-end of antisense EST BX373748 are directly at the polyadenylation sites of HX_4 and/or H3_8. SVA copies highlighted in red were verified to be source elements. (D) RT-PCR analyses confirm transcription of distinct SVA_F1 subfamily members. Agarose gel electrophoresis of H20_1 and HX_4/H3_8-specific RT-PCR products derived from <t>total</t> <t>RNA</t> from human tissues and NCCIT cells. Primer binding sites and extension of the RT-PCR products are indicated as short arrows and red bars, respectively, in B and C. To control for both successful cDNA synthesis and DNA-free RNA preparations, PCRs with GAPDH-specific, intron-spanning primers (see Methods) were performed on RNA preparations from each tissue before (−RT) and after (+RT) cDNA synthesis. PCR on genomic HeLa DNA served as a positive control. The 766- and 481-bp products originate from the unspliced GAPDH gene and a processed GAPDH pseudogene, respectively (Harper et al. 2003). Sizes of obtained PCR products are indicated and correspond to expected fragment sizes. RT, reverse transcriptase; M, size marker; NTC, no template control.
Hiv Rna Cat Vr 3351sd Atcc, supplied by ATCC, used in various techniques. Bioz Stars score: 94/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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94
ATCC quantitative genomic rna
Ongoing transcription of SVA_F1 subfamily members is demonstrated by ESTs and RT-PCR analyses. (A) ESTs (arrows) aligning specifically to the source element H10_1 and its descendants (DB277120, AA582071) and to MAST2–SVA junctions of a subset of SVA_F1 subfamily members. Extensions of the queries used to identify ESTs (black bars) are shown. (B) Transcriptional control of transduction group 1 members H20_1 and H1_F_160 is effected by external promoters. Identified ESTs match 5′ junctions of the SVA elements with primary 5′ transductions. MER57A is an internal portion of the nonautonomous retrovirus 1 (ERV1). (C) ESTs indicating ongoing transcription of source element HX_4. Those ESTs that correspond to the 3′-end (BI325030, AW627827) and the 3′ junction (BX110444) of HX_4 are also consistent with transcription of the HX_4 derivative H3_8 (Fig. 7C). 3′-Ends of sense ESTs BI325030 and BX110444 as well as the 5′-end of antisense EST BX373748 are directly at the polyadenylation sites of HX_4 and/or H3_8. SVA copies highlighted in red were verified to be source elements. (D) RT-PCR analyses confirm transcription of distinct SVA_F1 subfamily members. Agarose gel electrophoresis of H20_1 and HX_4/H3_8-specific RT-PCR products derived from <t>total</t> <t>RNA</t> from human tissues and NCCIT cells. Primer binding sites and extension of the RT-PCR products are indicated as short arrows and red bars, respectively, in B and C. To control for both successful cDNA synthesis and DNA-free RNA preparations, PCRs with GAPDH-specific, intron-spanning primers (see Methods) were performed on RNA preparations from each tissue before (−RT) and after (+RT) cDNA synthesis. PCR on genomic HeLa DNA served as a positive control. The 766- and 481-bp products originate from the unspliced GAPDH gene and a processed GAPDH pseudogene, respectively (Harper et al. 2003). Sizes of obtained PCR products are indicated and correspond to expected fragment sizes. RT, reverse transcriptase; M, size marker; NTC, no template control.
Quantitative Genomic Rna, supplied by ATCC, used in various techniques. Bioz Stars score: 94/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/human+rna/Quantitative+Genomic+RNA+from+Human+rhinovirus+17/bio_rxiv__2025__05__03__652018-144-9-19
Average 94 stars, based on 1 article reviews
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90
ATCC rsv strain 9320
Ongoing transcription of SVA_F1 subfamily members is demonstrated by ESTs and RT-PCR analyses. (A) ESTs (arrows) aligning specifically to the source element H10_1 and its descendants (DB277120, AA582071) and to MAST2–SVA junctions of a subset of SVA_F1 subfamily members. Extensions of the queries used to identify ESTs (black bars) are shown. (B) Transcriptional control of transduction group 1 members H20_1 and H1_F_160 is effected by external promoters. Identified ESTs match 5′ junctions of the SVA elements with primary 5′ transductions. MER57A is an internal portion of the nonautonomous retrovirus 1 (ERV1). (C) ESTs indicating ongoing transcription of source element HX_4. Those ESTs that correspond to the 3′-end (BI325030, AW627827) and the 3′ junction (BX110444) of HX_4 are also consistent with transcription of the HX_4 derivative H3_8 (Fig. 7C). 3′-Ends of sense ESTs BI325030 and BX110444 as well as the 5′-end of antisense EST BX373748 are directly at the polyadenylation sites of HX_4 and/or H3_8. SVA copies highlighted in red were verified to be source elements. (D) RT-PCR analyses confirm transcription of distinct SVA_F1 subfamily members. Agarose gel electrophoresis of H20_1 and HX_4/H3_8-specific RT-PCR products derived from <t>total</t> <t>RNA</t> from human tissues and NCCIT cells. Primer binding sites and extension of the RT-PCR products are indicated as short arrows and red bars, respectively, in B and C. To control for both successful cDNA synthesis and DNA-free RNA preparations, PCRs with GAPDH-specific, intron-spanning primers (see Methods) were performed on RNA preparations from each tissue before (−RT) and after (+RT) cDNA synthesis. PCR on genomic HeLa DNA served as a positive control. The 766- and 481-bp products originate from the unspliced GAPDH gene and a processed GAPDH pseudogene, respectively (Harper et al. 2003). Sizes of obtained PCR products are indicated and correspond to expected fragment sizes. RT, reverse transcriptase; M, size marker; NTC, no template control.
Rsv Strain 9320, supplied by ATCC, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/human+rna/Genomic+Genomic+RNA+from+Human+respiratory+syncitial+virus+strain+9320/pm34062939-30-30-33
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94
ATCC tongue scc154
Ongoing transcription of SVA_F1 subfamily members is demonstrated by ESTs and RT-PCR analyses. (A) ESTs (arrows) aligning specifically to the source element H10_1 and its descendants (DB277120, AA582071) and to MAST2–SVA junctions of a subset of SVA_F1 subfamily members. Extensions of the queries used to identify ESTs (black bars) are shown. (B) Transcriptional control of transduction group 1 members H20_1 and H1_F_160 is effected by external promoters. Identified ESTs match 5′ junctions of the SVA elements with primary 5′ transductions. MER57A is an internal portion of the nonautonomous retrovirus 1 (ERV1). (C) ESTs indicating ongoing transcription of source element HX_4. Those ESTs that correspond to the 3′-end (BI325030, AW627827) and the 3′ junction (BX110444) of HX_4 are also consistent with transcription of the HX_4 derivative H3_8 (Fig. 7C). 3′-Ends of sense ESTs BI325030 and BX110444 as well as the 5′-end of antisense EST BX373748 are directly at the polyadenylation sites of HX_4 and/or H3_8. SVA copies highlighted in red were verified to be source elements. (D) RT-PCR analyses confirm transcription of distinct SVA_F1 subfamily members. Agarose gel electrophoresis of H20_1 and HX_4/H3_8-specific RT-PCR products derived from <t>total</t> <t>RNA</t> from human tissues and NCCIT cells. Primer binding sites and extension of the RT-PCR products are indicated as short arrows and red bars, respectively, in B and C. To control for both successful cDNA synthesis and DNA-free RNA preparations, PCRs with GAPDH-specific, intron-spanning primers (see Methods) were performed on RNA preparations from each tissue before (−RT) and after (+RT) cDNA synthesis. PCR on genomic HeLa DNA served as a positive control. The 766- and 481-bp products originate from the unspliced GAPDH gene and a processed GAPDH pseudogene, respectively (Harper et al. 2003). Sizes of obtained PCR products are indicated and correspond to expected fragment sizes. RT, reverse transcriptase; M, size marker; NTC, no template control.
Tongue Scc154, supplied by ATCC, used in various techniques. Bioz Stars score: 94/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/human+rna/Quantitative+Synthetic+Human+immunodeficiency+virus+1+(HIV-1)+RNA/pmc11209625-74-31-36
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92
ATCC human parain uenza virus type ii
Ongoing transcription of SVA_F1 subfamily members is demonstrated by ESTs and RT-PCR analyses. (A) ESTs (arrows) aligning specifically to the source element H10_1 and its descendants (DB277120, AA582071) and to MAST2–SVA junctions of a subset of SVA_F1 subfamily members. Extensions of the queries used to identify ESTs (black bars) are shown. (B) Transcriptional control of transduction group 1 members H20_1 and H1_F_160 is effected by external promoters. Identified ESTs match 5′ junctions of the SVA elements with primary 5′ transductions. MER57A is an internal portion of the nonautonomous retrovirus 1 (ERV1). (C) ESTs indicating ongoing transcription of source element HX_4. Those ESTs that correspond to the 3′-end (BI325030, AW627827) and the 3′ junction (BX110444) of HX_4 are also consistent with transcription of the HX_4 derivative H3_8 (Fig. 7C). 3′-Ends of sense ESTs BI325030 and BX110444 as well as the 5′-end of antisense EST BX373748 are directly at the polyadenylation sites of HX_4 and/or H3_8. SVA copies highlighted in red were verified to be source elements. (D) RT-PCR analyses confirm transcription of distinct SVA_F1 subfamily members. Agarose gel electrophoresis of H20_1 and HX_4/H3_8-specific RT-PCR products derived from <t>total</t> <t>RNA</t> from human tissues and NCCIT cells. Primer binding sites and extension of the RT-PCR products are indicated as short arrows and red bars, respectively, in B and C. To control for both successful cDNA synthesis and DNA-free RNA preparations, PCRs with GAPDH-specific, intron-spanning primers (see Methods) were performed on RNA preparations from each tissue before (−RT) and after (+RT) cDNA synthesis. PCR on genomic HeLa DNA served as a positive control. The 766- and 481-bp products originate from the unspliced GAPDH gene and a processed GAPDH pseudogene, respectively (Harper et al. 2003). Sizes of obtained PCR products are indicated and correspond to expected fragment sizes. RT, reverse transcriptase; M, size marker; NTC, no template control.
Human Parain Uenza Virus Type Ii, supplied by ATCC, used in various techniques. Bioz Stars score: 92/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/human+rna/Quantitative+Genomic+RNA+from+Human+parainfluenza+virus+2+strain+Greer/ppr0696572-74-52-58
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92
Cusabio anti rna polymerase iii
Ongoing transcription of SVA_F1 subfamily members is demonstrated by ESTs and RT-PCR analyses. (A) ESTs (arrows) aligning specifically to the source element H10_1 and its descendants (DB277120, AA582071) and to MAST2–SVA junctions of a subset of SVA_F1 subfamily members. Extensions of the queries used to identify ESTs (black bars) are shown. (B) Transcriptional control of transduction group 1 members H20_1 and H1_F_160 is effected by external promoters. Identified ESTs match 5′ junctions of the SVA elements with primary 5′ transductions. MER57A is an internal portion of the nonautonomous retrovirus 1 (ERV1). (C) ESTs indicating ongoing transcription of source element HX_4. Those ESTs that correspond to the 3′-end (BI325030, AW627827) and the 3′ junction (BX110444) of HX_4 are also consistent with transcription of the HX_4 derivative H3_8 (Fig. 7C). 3′-Ends of sense ESTs BI325030 and BX110444 as well as the 5′-end of antisense EST BX373748 are directly at the polyadenylation sites of HX_4 and/or H3_8. SVA copies highlighted in red were verified to be source elements. (D) RT-PCR analyses confirm transcription of distinct SVA_F1 subfamily members. Agarose gel electrophoresis of H20_1 and HX_4/H3_8-specific RT-PCR products derived from <t>total</t> <t>RNA</t> from human tissues and NCCIT cells. Primer binding sites and extension of the RT-PCR products are indicated as short arrows and red bars, respectively, in B and C. To control for both successful cDNA synthesis and DNA-free RNA preparations, PCRs with GAPDH-specific, intron-spanning primers (see Methods) were performed on RNA preparations from each tissue before (−RT) and after (+RT) cDNA synthesis. PCR on genomic HeLa DNA served as a positive control. The 766- and 481-bp products originate from the unspliced GAPDH gene and a processed GAPDH pseudogene, respectively (Harper et al. 2003). Sizes of obtained PCR products are indicated and correspond to expected fragment sizes. RT, reverse transcriptase; M, size marker; NTC, no template control.
Anti Rna Polymerase Iii, supplied by Cusabio, used in various techniques. Bioz Stars score: 92/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Image Search Results


Cross-reaction evaluation of Lyo-CRISPR SARS-CoV-2 kit with other respiratory pathogens.

Journal: Viruses

Article Title: Evaluation of a Lyophilized CRISPR-Cas12 Assay for a Sensitive, Specific, and Rapid Detection of SARS-CoV-2

doi: 10.3390/v13030420

Figure Lengend Snippet: Cross-reaction evaluation of Lyo-CRISPR SARS-CoV-2 kit with other respiratory pathogens.

Article Snippet: Respiratory syncytial virus , ATCC ® VR-1580DQ , 10 5 copies/mL , 0/3 , Negative , 3/3 , Valid.

Techniques: Concentration Assay

Ongoing transcription of SVA_F1 subfamily members is demonstrated by ESTs and RT-PCR analyses. (A) ESTs (arrows) aligning specifically to the source element H10_1 and its descendants (DB277120, AA582071) and to MAST2–SVA junctions of a subset of SVA_F1 subfamily members. Extensions of the queries used to identify ESTs (black bars) are shown. (B) Transcriptional control of transduction group 1 members H20_1 and H1_F_160 is effected by external promoters. Identified ESTs match 5′ junctions of the SVA elements with primary 5′ transductions. MER57A is an internal portion of the nonautonomous retrovirus 1 (ERV1). (C) ESTs indicating ongoing transcription of source element HX_4. Those ESTs that correspond to the 3′-end (BI325030, AW627827) and the 3′ junction (BX110444) of HX_4 are also consistent with transcription of the HX_4 derivative H3_8 (Fig. 7C). 3′-Ends of sense ESTs BI325030 and BX110444 as well as the 5′-end of antisense EST BX373748 are directly at the polyadenylation sites of HX_4 and/or H3_8. SVA copies highlighted in red were verified to be source elements. (D) RT-PCR analyses confirm transcription of distinct SVA_F1 subfamily members. Agarose gel electrophoresis of H20_1 and HX_4/H3_8-specific RT-PCR products derived from total RNA from human tissues and NCCIT cells. Primer binding sites and extension of the RT-PCR products are indicated as short arrows and red bars, respectively, in B and C. To control for both successful cDNA synthesis and DNA-free RNA preparations, PCRs with GAPDH-specific, intron-spanning primers (see Methods) were performed on RNA preparations from each tissue before (−RT) and after (+RT) cDNA synthesis. PCR on genomic HeLa DNA served as a positive control. The 766- and 481-bp products originate from the unspliced GAPDH gene and a processed GAPDH pseudogene, respectively (Harper et al. 2003). Sizes of obtained PCR products are indicated and correspond to expected fragment sizes. RT, reverse transcriptase; M, size marker; NTC, no template control.

Journal: Genome Research

Article Title: 5?-Transducing SVA retrotransposon groups spread efficiently throughout the human genome

doi: 10.1101/gr.093435.109

Figure Lengend Snippet: Ongoing transcription of SVA_F1 subfamily members is demonstrated by ESTs and RT-PCR analyses. (A) ESTs (arrows) aligning specifically to the source element H10_1 and its descendants (DB277120, AA582071) and to MAST2–SVA junctions of a subset of SVA_F1 subfamily members. Extensions of the queries used to identify ESTs (black bars) are shown. (B) Transcriptional control of transduction group 1 members H20_1 and H1_F_160 is effected by external promoters. Identified ESTs match 5′ junctions of the SVA elements with primary 5′ transductions. MER57A is an internal portion of the nonautonomous retrovirus 1 (ERV1). (C) ESTs indicating ongoing transcription of source element HX_4. Those ESTs that correspond to the 3′-end (BI325030, AW627827) and the 3′ junction (BX110444) of HX_4 are also consistent with transcription of the HX_4 derivative H3_8 (Fig. 7C). 3′-Ends of sense ESTs BI325030 and BX110444 as well as the 5′-end of antisense EST BX373748 are directly at the polyadenylation sites of HX_4 and/or H3_8. SVA copies highlighted in red were verified to be source elements. (D) RT-PCR analyses confirm transcription of distinct SVA_F1 subfamily members. Agarose gel electrophoresis of H20_1 and HX_4/H3_8-specific RT-PCR products derived from total RNA from human tissues and NCCIT cells. Primer binding sites and extension of the RT-PCR products are indicated as short arrows and red bars, respectively, in B and C. To control for both successful cDNA synthesis and DNA-free RNA preparations, PCRs with GAPDH-specific, intron-spanning primers (see Methods) were performed on RNA preparations from each tissue before (−RT) and after (+RT) cDNA synthesis. PCR on genomic HeLa DNA served as a positive control. The 766- and 481-bp products originate from the unspliced GAPDH gene and a processed GAPDH pseudogene, respectively (Harper et al. 2003). Sizes of obtained PCR products are indicated and correspond to expected fragment sizes. RT, reverse transcriptase; M, size marker; NTC, no template control.

Article Snippet: Total RNA was extracted from human teratocarcinoma cell line NCCIT (ATCC CRL-2073) using TRIzol reagent (Invitrogen).

Techniques: Reverse Transcription Polymerase Chain Reaction, Transduction, Agarose Gel Electrophoresis, Derivative Assay, Binding Assay, Positive Control, Marker