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. 2021 Jun 11;6:233. doi: 10.1038/s41392-021-00653-w

Table 2.

Summary of peptides showing SARS-CoV-2 entry inhibition

Name Description Sequence Target Inhibitory activity (IC50) Clinical status Ref
SBP1 A peptide derived from ACE-PD α1 helix IEEQAKTFLDKFNHEAEDLFYQS RBD Preclinical 280
AHB1

Derived from ACE2

Deep sequencing identified three ACE2 helix scaffolded designs

DEDLEELERLYRKAEEVAKEAKDASRRGDDERAKEQMERAMRLFDQVFELAQELQEKQTDGNRQKATHLDKAVKEAADELYQRVRELEEQVMHVLDQVSELAHELLHKLTGEELERAAYFNWWATEMMLELIKSDDEREIREIEEEARRILEHLEELARK RBD LV: IC50 = 35 nM Preclinical 281
AHB2 A truncate of AHB2 ELEEQVMHVLDQVSELAHELLHKLTGEELERAAYFNWWATEMMLELIKSDDEREIREIEEEARRILEHLEELARK RBD LV: IC50 = 15.5 nM Preclinical 281
LCB1 De novo interface designs DKEWILQKIYEIMRLLDELGHAEASMRVSDLIYEFMKKGDERLLEEAERLLEEVER RBD LV: IC50 = 23.54 pM Preclinical 281
LCB3 De novo interface designs NDDELHMLMTDLVYEALHFAKDEEIKKRVFQLFELADKAYKNNDRQKLEKVVEELKELLERLLS RBD LV: IC50 = 48.1 pM Preclinical 281
IPB02 A lipopeptide made by adding a cholesterol group to the C-terminal of IBP01 ISGINASVVNIQKEIDRLNEVAKNLNESLIDLQELK (Chol) S2-HR1 PsV: IC50 = 0.08 μM Preclinical 293
EK1 Derived from HR2 (OC43) SLDQINVTFLDLEYEMKKLEEAIKKLEESYIDLKEL S2-HR1 PsV: IC50 = 2.375 μM Preclinical 289
LV: IC50 = 2.468 nM
EK1C4 cholesterol group to the C-terminal of EK1 SLDQINVTFLDLEYEMKKLEEAIKKLEESYIDLKELGSGSG-PEG4 (Chol) S2-HR1 PsV: IC50 = 15.8 nM Preclinical 289
LV: IC50 = 36.5 nM
2019-nCoV-HR2P HR2 (1150–1185) DISGINASVVNIQKEIDRLNEVAKNLNESLIDLQEL (aa1168–1203) S2-HR1 PsV: IC50 = 0.98 μM Preclinical 200

PsV pseudovirus, LV live virus