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Table 2 Prediction programs showing membrane topologies of four different CoV E proteins with predicted locations of N- and C-termini, and TMDs. Prediction programs used: TM Pred, HMMTop, TMHMM 2.0, MEMSAT3, and MEMSAT-SVM [96,97,98,99,100]. Taken from Ruch and Machamer [41]

From: Coronavirus envelope protein: current knowledge

Prediction Program

IBV E

MHV E

SARS E

TGEV E

N

C

TMDs

N

C

TMDs

N

C

TMDs

N

C

TMDs

TM Pred

lumen

lumen

2

lumen

cyto

1

lumen

cyto

1

lumen

cyto

1

HMMTop

lumen

lumen

2

cyto

cyto

2

lumen

cyto

1

cyto

cyto

2

TMHMM 2.0

lumen

lumen

2

lumen

cyto

1

cyto

lumen

1

lumen

cyto

1

MEMSAT-SVM

lumen

lumen

2

lumen

lumen

2

lumen

lumen

2

cyto

lumen

1

MEMSAT3

cyto

cyto

2

lumen

cyto

1

lumen

lumen

2

lumen

cyto

1