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. Author manuscript; available in PMC: 2022 Oct 21.
Published in final edited form as: Mol Cell. 2021 Aug 25;81(20):4300–4318.e13. doi: 10.1016/j.molcel.2021.07.042

KEY RESOURCES TABLE.

REAGENT or RESOURCE SOURCE IDENTIFIER

Antibodies

Anti-GFP antibody - ChIP Grade (1:300 for WB) Abcam Cat# ab290, RRID:AB_303395
CD4 [EPR6855] antibody (1:500 for WB) Abcam Cat# ab133616, RRID:AB_2750883
Cre recombinase antibody [7.23] (1:200 for WB) Abcam Cat# ab24607, RRID:AB_448179
anti-SMAD5 antibody[3H9] (1:200 for WB) Novus Biologicals Cat# NBP2–37648
FGFR1 Antibody (1:200 for WB) Novus Cat# NB100–2079, RRID:AB_10144921
FGFR1 (phospho Y654) antibody (1:200 for WB) Abcam Cat# ab59194, RRID:AB_941585
Monoclonal ANTI-FLAG® M2 antibody (1:400 for WB; 1:150 for IF) Sigma-Aldrich Cat# F1804, RRID:AB_262044
HA tag antibody - ChIP Grade (1:400 for WB; 1:150 for IF) Abcam Cat# ab9110, RRID:AB_307019
beta Tubulin antibody - Loading Control (1:500 for WB) Abcam Cat# ab6046, RRID:AB_2210370
Anti-GAPDH antibody [EPR16891] (1:500 for WB) Abcam Cat# ab181602, RRID:AB_2630358
IRDye 680RD Goat anti-Mouse IgG antibody (1:5,000 for WB) LI-COR Biosciences Cat# 926–68070, RRID:AB_10956588
IRDye® 800CW Goat anti-Rabbit IgG (H + L) (1:5000 for WB) LI-COR Biosciences Cat# 926–32611
Goat anti-Mouse IgG (H+L) Highly Cross-Adsorbed Secondary Antibody, Alexa Fluor 488 (1:1,500 for IF) Thermo Fisher Scientific Cat# A-11029, RRID:AB_2534088
Goat anti-Rabbit IgG (H+L) Cross-Adsorbed Secondary Antibody, Alexa Fluor 594 (1:150 for IF) Thermo Fisher Scientific Cat# A-11012, RRID:AB_2534079
Customize rabbit anti-circFGFR1p Thermo Fisher Scientific Project# VJ2580

Bacterial and Virus Strains

NEB® 10-beta Competent E. coli New England Biolabs C3019H

Chemicals, Peptides, and Recombinant Proteins

SYBR™ Gold Nucleic Acid Gel Stain Thermo Fisher Scientific Cat# S11494
BrightStar™-Plus Positively Charged Nylon Membrane Thermo Fisher Scientific Cat# AM10100
Millennium™ RNA Markers Thermo Fisher Scientific Cat# AM7150
Cycloheximide,≥93.0% (HPLC) Sigma-Aldrich Cat# 01810
Puromycin Dihydrochloride Thermo Fisher Scientific Cat# A11138–03
Pierce™ IP Lysis Buffer Thermo Fisher Scientific Cat# 87788
Pierce™ Protein A/G Magnetic Beads Thermo Fisher Scientific Cat# 88803
NuPAGE™ 4 to 12%, Bis-Tris, 1.5 mm, Mini Protein Gel, 10-well Thermo Fisher Scientific Cat# NP0335BOX
Corning® BioCoat™ Poly-D-Lysine 12 mm #1 German Glass Coverslip Corning Cat# 354086
ON-TARGET plus non-targeting pool Dharmacon Cat# D-001810–10-05
SMARTpool: ON-TARGETplus FGFR1 siRNA Dharmacon Cat# L-003131–00-0005
Gibco FGF1 Recombinant Human Protein Thermo Fisher Scientific Cat# 13–241-013
PrestoBlue™ Cell Viability Reagent Thermo Fisher Scientific Cat# A13261
E-Gel™ EX Agarose Gels, 2% Thermo Fisher Scientific Cat# G402022
NEB® 10-beta/Stable Outgrowth Medium New England Biolabs Cat# B9035S
Opti-MEM™ I Reduced Serum Medium Thermo Fisher Scientific Cat# 31985070
Q5® Hot Start High-Fidelity 2X Master Mix New England Biolabs Cat# M0409L
TrypLE™ Express Enzyme (1X), no phenol red Thermo Fisher Scientific Cat# 12604013
NEBNext® Ultra™ II Q5® Master Mix New England Biolabs Cat# M0544L
Invitrogen Ambion SUPERase·In RNase Inhibitor (20U/μL) Thermo Fisher Scientific Cat# AM2694
SuperBlock Blocking Buffers Thermo Fisher Scientific Cat# 37517
TURBO DNase (2U/μL) Thermo Fisher Scientific Cat# AM2238
SuperScript IV Reverse Transcriptase Thermo Fisher Scientific Cat# 18090050
Normal Rabbit IgG Sigma-Aldrich Cat# 12–370
RIPA Lysis and Extraction Buffer Thermo Fisher Scientific Cat# 89900
Halt Protease and Phosphatase Inhibitor Cocktails Thermo Fisher Scientific Cat# 78441
RNaseR MCLAB Products Cat# RNASR-200

Critical Commercial Assays

Lipofectamine™ 3000 Transfection Reagent Thermo Fisher Scientific Cat# L3000015
Quick-DNA Microprep Plus Kit Zymo Research Cat# D4074
NorthernMax™-Gly Kit Thermo Fisher Scientific Cat# AM1946
RNeasy Mini Kit Qiagen Cat# 74004
SuperScript™ IV One-Step RT-PCR System Thermo Fisher Scientific Cat# 12594100
HiScribe™ T7 High Yield RNA Synthesis Kit New England Biolabs Cat# E2040S
GeneMorph II Random Mutagenesis Kit Agilent Cat# 200550
DNA Clean & Concentrator-25 Zymo Research Cat# D4033
Zymoclean Gel DNA Recovery Kit (uncapped columns) Zymo Research Cat# D4002
Direct-zol RNA Microprep Zymo Research Cat# R2061
RNA Clean & Concentrator-25 Zymo Research Cat# R1017
RNA Clean & Concentrator-5 Zymo Research Cat# R1013
Zymoclean Gel RNA Recovery Kit Zymo Research Cat# R1011
NEBuilder® HiFi DNA Assembly Master Mix New England Biolabs Cat# E2621L
ZymoPURE II Plasmid Maxiprep Kit Zymo Research Cat# D4203
Complete kit (optimized for Roche® LightCycler 480) Kapa Biosystems Cat# KK4854
NEBuilder® HiFi DNA Assembly Master Mix New England Biolabs Cat# E2621L

Deposited Data

IRES screening, polysome profiling, and M2-seq sequencing This paper GEO: GSE178718
Ribosome footprinting Chen et al., 2020 GEO: GSM3791725, GSM3791726, GSM3791727, GSM3791728, GSM3791729, and GSM3791730
iPSC peptidomics Chen et al., 2020 PRIDE: PXD014031
SCBC peptidomics Orre et al., 2019 ProteomeXchange: PXD006895
GTEx peptidomics Jiang et al., 2020 ProteomeXchange: PXD016999
K562/U2OS/H358 peptidomics This paper ProteomeXchange: PXD025233
HLA class I peptidomes Bassani-Sternberg et al., 2015 PRIDE: PXD014031
circFGFR1p IP-MS This paper ProteomeXchange: PXD024993
K562/U2OS PRM-MS This paper ProteomeXchange: PXD025235
circFGFR1p PRM-MS This paper ProteomeXchange: PXD025203
QTI-seq Gao et al., 2015 SRA: 160745

Experimental Models: Cell Lines

HEK293T ATCC Cat# CRL-3216; RRID: CVCL_0063
HeLa ATCC Cat# CCL-2; RRID: CVCL_0030
BJ ATCC Cat# CRL-2522; RRID:CVCL_3653
U2OS ATCC Cat# HTB-96, RRID:CVCL_0042

Oligonucleotides

qRT-PCR primers This paper Table S7
IRES screening oligo library Weingarten-Gabbay et al., 2016 N/A

Recombinant DNA

Plasmid: pcDNA3.1(+) ZKSCAN1 Sense Addgene Cat# 60631
Plasmid: pHAGE-FGFR1 Addgene Cat# 116740
Plasmid: pUC19 Vector New England Biolabs Cat# N3041L
Plasmid: pLV-mCherry Addgene Cat# 36084
Plasmid: mRuby-ZKSCAN-split-eGFP reporter This paper N/A
Plasmid: mRuby-IRES-eGFP reporter This paper N/A
Plasmid: autocatalytic-splicing circEGFP This paper N/A

Software and Algorithms

ZEN (blue edition) Carl Zeiss Microscopy https://www.zeiss.com/microscopy/us/products/microscope-software/zen.html
FlowJo_V10 FlowJo, LLC https://flowjo.com/solutions/flowjo/downloads
Bowtie2 Langmead and Salzberg, 2012 https://sourceforge.net/projects/bowtie-bio/files/bowtie2/2.4.4/
TopHat2 Kim et al., 2013 https://ccb.jhu.edu/software/tophat/downloads/tophat-2.1.1.tar.gz
M2-seq and M2-net Cheng et al., 2017 https://ribokit.github.io/M2seq/
ViennaRNA Lorenz et al., 2011 https://www.tbi.univie.ac.at/RNA/
MaxQuant Cox and Mann, 2008 https://www.maxquant.org/download_asset/maxquant/latest
Trans Proteomic Pipeline Collaborative open-source http://tools.proteomecenter.org/wiki/index.php?title=Software:TPP
Byonic Protein Metrics https://proteinmetrics.com/byos/
Skyline 19.1.0.193 MacLean et al., 2010 https://skyline.ms/wiki/home/software/Skyline/page.view?name=install-administator-64