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Smarter race 5 3

Manufactured by Takara Bio
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The SMARTer® RACE 5′/3′ is a molecular biology kit used for rapid amplification of cDNA ends (RACE). It enables the generation of full-length cDNA sequences from RNA samples, including the 5' and 3' untranslated regions.

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6 protocols using smarter race 5 3

1

Obtaining full-length cDNA of Pv-eng-5 and Pv-eng-8

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Race experiments were carried out to obtain the full-length cDNA of Pv-eng-5 and Pv-eng-8 by using 1 μg of total RNA from nematode mixed stages with SMARTer® RACE 5′/3′ (Clontech, Mountain View, CA, USA) according to the manufacturer’s instructions.
The 3′ end of Pv-eng-5 was amplified using the gene specific primer Pv-eng-5R3′-2 and a long primer UPM (Table 1). Nested PCR, using the short universal primer UPS and either Pv-5DB_for2 or Pv-5DB_for3 specific primers (Table 1), generated two bands which were cloned and sequenced. One band corresponded to Pv-eng-5 and the second band to Pv-eng-8.
The 5′ RACE of Pv-eng-8 was generated, using the gene specific primer Pv-eng-8REV3 and a long UPM (Table 1). Nested PCR, using the short universal primer UPS and gene specific primers: Pv-eng-8-race5′1 and Pv-eng-8-race5′2 (Table 1), generated a band which was cloned and sequenced.
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2

Complete CVTR Genome Sequencing

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After the assembly of HTS data, several overlapping primer pairs were designed to validate deep sequencing results by Sanger sequencing. The sequences of the primers used to complete the CVTR genome sequence, are presented in Table S4. The two genome ends were determined by a Rapid Amplification of Complementary DNA Ends (RACE) kit (SMARTer® RACE 5′/3′, Clontech) according to manufacturer’s instructions [30 (link)]. Briefly, first strand cDNA synthesis carried out by SMARTScribe RT using a modified oligo (dT) primer and SMARTer II A Oligonucleotide. Following reverse transcription, 5′ and 3′ RACE PCR reactions were accomplished using four gene specific primers (GSP for direct PCR and NGSP for nested-PCR) and two universal long and short primers. All amplified fragments were directly sequenced by Iontek, Istanbul, Turkey.
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3

Determining RAIN Transcript Sequence

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To determine the sequence of the full RAIN transcripts we perfomed 5΄ RACE and 3΄ RACE using the SMARTer RACE 5′/3′ (Clontech) kit following the manufacturer's instructions. Briefly, 1 μg of DNAse-treated RNA extracted from TPC1 cells has been retro-transcribed to generate 5′ RACE-ready and 3′ RACE-ready cDNA. 5′ ends and 3′ ends of RAIN transcripts have been amplified using the RAIN_RACE_R and RAIN_RACE_F primers respectively (see Supplementary Table SI for sequence) and a touchdown PCR program. Amplified fragments have been extracted from agarose gel, cloned into the pRACE plasmid and sequenced.
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4

Cloning and Sequencing of Pl-eng-2

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The 3′/5′ RACE of Pl-eng-2 was carried out on 1 µg of total RNA from nematode mixed stages with SMARTer® RACE 5′/3′ (Clontech, California, USA) according to the manufacturer’s instructions. The 3′ end of Pl-eng-2 was amplified using the gene specific primer 3′RACE Pl5 eng 3 (CGTGGATGTGGTGGCGGCGA) and a long universal primer UPM.
Nested PCR, using the short universal primer UPS and 3′RACE Pl5 eng 2 (GCCAGTGTTGTGAAGCCATACC) specific primers, generated a band that was cloned and sequenced.
The 5′ end of Pl-eng-2 was generated using the gene specific primer 5′RACE Pl5 eng 3 (TCGCCGCCACCACATCCACG) and a long UPM. Nested PCR, using the short universal primer UPS and gene specific primers 5′RACE Pl5 eng 2 (GGTATGGCTTCACAACACTGGC), generated a band that was cloned and sequenced. 5′/3′ PCR reactions were performed as follows: 94 °C for 2 min; 30 cycles at 94 °C for 30 sec, 66 °C for 30 s, and 72 °C for 3 min and a final extension step at 72 °C for 7 min.
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5

Riboprobe Templates for In Situ Hybridization

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Templates for antisense riboprobes for in situ hybridization were amplified by PCR or SMARTer 3’/5’-RACE (Clontech) from cDNA libraries or from genomic DNA (see Additional file 1 for details on each sequence). Template sequences were cloned either using TOPO-TA cloning (ThermoFisher) into pCRII dual promoter vector, or using restriction enzyme cloning into pCiProbe (see Additional file 1) linearized NotI-EcoRI. In vitro transcription of labeled riboprobes and two-color fluorescent in situ hybridization were performed as previously described [35 (link)].
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6

Multi-Target Fluorescent In Situ Hybridization for Developmental Biology

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Templates for mRNA in situ hybridization probes were cloned by PCR or SMARTer 3’/5’-RACE (Clontech) from cDNA or genomic DNA, or synthesized de novo (Twist Bioscience). See Supporting Information for detailed sequences and sequence IDs to search for further information in the ANISEED database (Dardaillon et al., 2020 (link)). In vitro transcription of labeled probes for fluorescent in situ hybridization was performed as previously described (Ikuta & Saiga, 2007 (link); Stolfi, Lowe, et al., 2014 ). To detect cilia, larvae were incubated with anti-acetylated α-tubulin primary antibody (clone 6-11B-1, Sigma) and AlexaFluor-488 secondary antibody (ThermoFisher) as previously described (Pennati et al., 2015 (link)). Cell outlines were counterstained with phalloidin AlexFluor-546 conjugate (ThermoFisher) incubated 1:50 for at least 2 hours prior to final washes, and nuclei were labeled with DAPI during the final wash. Embryos were imaged on upright and inverted epifluorescence microscopes (Leica), or TCS SP5 AOBS and TCS SP8 X scanning point confocal systems (Leica).
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