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Table 1 Basic information, HA cleavage region, receptor-binding pocket and HA glycosylation site of H4N1

From: Isolation and genetic characteristics of Novel H4N1 Avian Influenza viruses in ChongQing, China

Isolate ID

Location

Collection Date

Host

HA Cleavage Region

Receptor-binding Pocket

Glycosylation Site

130-loop

190-helix

220-loop

cs2301

CHN

2022

Environment

PEKAAR/GLF

VKQNGKS

EQTNLYKNNP

RPWVR

GQSGR

14,18,34,178,310,497

EPI_ISL_697696

MGL

2018

Duck

PEKASR/GLF

VKQNGKS

EQTNLYENNP

RPWVR

GQSGR

18,34,178,310,497

EPI_ISL_14768252

AUS

2016

Pacific black duck

PEKASR/GLF

VKQNGKS

EQTNLYKNNP

RPWVR

GQSGR

18,34,178,310,497

EPI_ISL_215543

USA

2014

Anas platyrhynchos

PEKATR/GLF

VKQNGKS

EQTNLYKNNP

RPWVR

GQSGR

18,34,178,310,497

EPI_ISL_290232

MGL

2013

Duck

PEKASR/GLF

VKQNGKS

EQTNLYKNNP

RPWVR

GQSGR

14,18,34,178,310,497

EPI_ISL_237135

JPN

2013

Duck

PEKASR/GLF

VKQNGKS

EQTNLYKNNP

RPWVR

GQSGR

18,34,178,310,497

EPI_ISL_135110

USA

2011

Anas platyrhynchos

PEKATR/GLF

VKQNGKS

EQTNLYKNNP

RPWVR

GQSGR

18,34,178,310,497

EPI_ISL_133649

USA

2011

Anas platyrhynchos

PEKATR/GLF

VKQNGKS

EQTNLYKNNP

RPWVR

GQSGR

18,34,178,310,497

EPI_ISL_142569

USA

2009

Anas platyrhynchos

PEKATR/GLF

VKQNGKS

EQTNLYKNNP

RPWVR

GQSGR

18,34,178,310,497

EPI_ISL_130351

CHN

2009

Swine

PEKASR/GLF

VKQDGKS

EQTNLYKNNP

RPWVR

GQSGR

14,18,34,178,310,497

EPI_ISL_85216

USA

2008

Anas acuta

PEKATR/GLF

VKQNGKS

EQTNLYKNNP

RPWVR

GQSGR

18,34,178,310,497

EPI_ISL_158278

SWE

2006

Anas platyrhynchos

PEKASR/GLF

VKQNGKS

EQTDLYKNNP

RPWVR

GQSGR

18,34,178,310,497

EPI_ISL_8858

CAN

1998

Anas platyrhynchos

PEKATR/GLF

VKQNGKS

EQTDLYKNNP

RPWVR

GQSGR

18,34,178,310,497

EPI_ISL_8863

CAN

1977

Anas platyrhynchos

PEKATR/GLF

VKQNGKS

EQINLYKNNP

RPWVR

GQSGR

18,34,178,310,497

EPI_ISL_379554

CAN

1976

Duck

PEKATR/GLF

VKQNGKS

EQTNLYKNNP

RPWVR

GQSGR

18,34,178,310,497

  1. The amino acid sequence number is represented by the classical H3 strain number, and bold text indicates differences