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Overview

The eCLIP Core provides comprehensive mapping of RNA–protein interactions at transcriptome-wide scale. By utilizing an optimized protocol that decreases requisite amplification by ~1,000-fold, we reduce experimental failure rates and deliver high-complexity libraries for authentic binding site discovery.

Available Services

Standard eCLIP

Maps the precise occupancy of RBPs on RNA to deduce biological function and target transcript regulation.

Ribo-eCLIP

Measures ribosome occupancy to distinguish mRNA targets of ribosomes with varying protein compositions, offering mechanistic insight into translation efficiency.

OligoCLIP Multiplexing

Simultaneously captures up to 10 RBPs from a single sample. Ideal for establishing rapid, highly parallelized RBP–RNA networks from limited clinical inputs.

Bioinformatics Pipeline & Data Delivery

All eCLIP sequencing data is rigorously processed to identify high-confidence, reproducible RNA-binding windows using our standardized SKIPPER pipeline. Results are securely delivered via Globus, providing researchers with reliable, high-speed data transfer directly to their institutional or cloud endpoints.

Interactive Analysis Portal: Example eCLIP (SRSF1)

Upon project completion, your data is loaded into our interactive hub. Researchers receive comprehensive quality control metrics and analysis figures, including region distributions, basic read statistics, and reproducible enriched windows autolinked to UCSC's genome browser.

Example eCLIP output of binding site positions.
Sample Initial Reads Trimmed Reads Deduped Reads Usable %
SRSF1_K562_4045_IP_1 25,141,300 24,927,766 17,194,358 0.68
SRSF1_K562_4045_IN_1 20,572,437 20,541,064 14,936,346 0.73
eCLIP binding site distribution across transcriptomic regions
Distribution of binding sites across transcriptomic regions of interest (3′ UTR, CDS, intron, etc.).
Example UCSC genome browser trackhub for eCLIP binding site
Reproducible enriched binding window visualized in the UCSC Genome Browser via our integrated trackhub.
# Secure Globus Data Transfer Endpoint:
https://g-ba9d59.0ed28.75bc.data.globus.org/analysis/public/eclip_example/

# UCSC Genome Browser Trackhub — paste into My Data › Trackhubs › Connected Hubs:
http://s3-us-west-2.amazonaws.com/yeolab-trackhubs/20240722-ExampleeCLIP-SKIPPER/20240722-ExampleeCLIP-SKIPPER.hub.txt

How It Works

eCLIP captures direct, in vivo RNA–protein interactions through UV crosslinking followed by immunoprecipitation and strand-specific library preparation. UV irradiation induces covalent bonds between RBPs and their directly contacted RNA targets, after which stringent purification and a size-matched input (SMInput) control enable precise, quantitative identification of reproducible binding windows across the transcriptome.

eCLIP experimental workflow schematic — from UV crosslinking to sequencing library
eCLIP experimental workflow: UV crosslinking → lysis → immunoprecipitation → RNA fragmentation → adapter ligation → reverse transcription → library amplification → sequencing. A size-matched input (SMInput) control is processed in parallel for normalization and specificity assessment.
  • 1. Van Nostrand EL, et al. Robust transcriptome-wide discovery of RNA-binding protein binding sites with enhanced CLIP (eCLIP). Nat Methods. 2016;13(6):508–514. PMID: 27018577
  • 2. Van Nostrand EL, et al. Transcriptome-wide identification of RNA-binding protein binding sites using seCLIP-seq. Nat Protoc. 2022;17(5):1223–1265. PMID: 35322209