Deep mining of antibody phage-display selections using Oxford Nanopore Technologies and Dual Unique Molecular Identifiers

Abbreviations2xYT

Double Yeast Tryptone, a rich bacterial growth medium

CDR

Complementarity-Determining Region

CDR1

Complementarity-Determining Region 1

CDR2

Complementarity-Determining Region 2

CDR3

Complementarity-Determining Region 3

CDRH3

Third Heavy Chain Complementarity-Determining Region

ELISA

Enzyme-Linked Immunosorbent Assay

Fab

Fragment Antigen Binding

GRAVY

Grand Average of Hydropathicity

HRP

Horseradish Peroxidase

IMAC

Immobilized Nickel Affinity Chromatography

IPTG

Isopropyl β-D-1-thiogalactopyranoside

KM13

Trypsin-sensitive M13 phage

MPBS

Milk Powder in Phosphate Buffer Saline

NGS

Next Generation Sequencing

ONT

Oxford Nanopore Technologies

ONT-UMIs

Oxford Nanopore Technologies sequencing with Unique Molecular Identifiers

PEG

Polyethylene Glycol 6000

PBS

Phosphate Buffer Saline

PBST

PBS with 0,05% Tween 20

PCR

Polymerase Chain Reaction

scFv

Single Chain Variable Fragment

sdAb

Single-domain Antibody

TBS-T

Tris-buffered saline with Tween 20

TG1

A strain of E. coli used expressing F' pilus

UMIs

Unique Molecular Identifiers

VH

Heavy Chain Variable Region

VL

Light Chain Variable Region

Keywords

Antibody phage-display

Oxford Nanopore Technologies

High-accuracy long-read sequencing

Unique Molecular Identifiers (UMIs)

Diversity monitoring

Enrichment monitoring

Rare binder recovery

Data availability

Code is available at https://gitlab.gbar.dtu.dk/laebgroup/optimized_ont_umi. Raw sequencing data available upon request.

© 2024 The Authors. Published by Elsevier B.V.

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