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Table 2 Different biological nanopores characteristics. Adapted from [142]

From: Epigenetic tumor heterogeneity in the era of single-cell profiling with nanopore sequencing

Biological nanopore

Diameter (nm)

Analyte

Comment

α-HL

1.4

RNA, ssDNA, aa, polymers, peptides, proteins

Large-scale application due to its reproducible structure and easy manipulation by site-directed mutagenesis

MspA

1.2

ssDNA, dsDNA

Suitable geometry for nanopore DNA sequencing

Phi 29

3.6

ssDNA, dsDNA

Allowing for the detection of large analysts and offering more space for further modifications

ClyA

3.3

ssDNA, proteins

Suitable for the accommodation of small to medium-sized proteins within the nanopore lumen

FhuA

2.4

Enzymes, protein–DNA interaction

Examining the proteolytic activity of an enzyme at pH 3.9 and determining the kinetics of protein–DNA–aptamer interactions

Aerolysin

1–1.7

Peptides, proteins

Sensing the α-helix peptides and unfolded proteins

SP1

3

ssDNA

Analyzing of ssDNA