The Jiangsu Provincial Center for Disease Prevention and Control released a small set of sequences at GenBank on 2010-12-06 from the late 2009 pH1N1 reservoir. These sequences are related to several of the most recent and most concerning Chinese sequences on file that also came from Jiangsu. In an unusual presentation, the early sequences appear to be more elaborate genetically than the later group. Are we seeing the PF11 reservoir select the most useful revisions to continue attacking humans while dropping extraneous or sub-optimal genetic material?
Recall that the Ukraine produced an early Vaccine Escape strain, UkrLvivN6_26M_2009_10_27_xL_VxX_f, that carried only one amino acid change, 225G, and one silent change, syn413K. A variant passage of that same UkrLvivN6 patient created a sequence, UkrLvivN6_2009_10_27_C3C1_xL_f, with an additional amino acid change producing the following polymorphisms.
UkrLvivN6_2009_10_27_C3C1_xL_f
- 158E
- 225G
- syn413K (AAg) - synonymous cross-linkage (xL) marker
The Chinese sequences discussed today have a limited set of metadata, and are perhaps more highly correlated than they appear. A slight possibility for duplicate submission exists. Six geographically-sited sequences with this type of combination is a set worthy of investigation. Although some potential exists for errors in the names and dates of these Chinese sequences, the data at hand suggests that a sub-clade may be emerging in the Jiangsu region with five polymorphisms traveling together in a group that boasts rarity and Vaccine Escape documentation.
Jiangsu province is on the east coast of China and boasts the highest population density of any province in the country. Water covers 18% of the province with another 68% as low-lying plains. Jiangsu is also known as the “land of water” due to a thousand kilometer coast line with the Yellow Sea, the Yangtze River passing through the south, an extensive irrigation system and the canals found throughout several of the cities. Nanjing, the capital, is situated within the Yangtze River Delta. [Jiangsu, Nanjing]
With this deposit, polymorphisms at amino acid position 454 may now be correlated with RBD changes. An affinity exists in the aa223 to aa226 range and with HA 188T. These Chinese sequences carry the 158E revision that is useful for infecting the human upper respiratory tract and the 225G that is equally as useful in deep lung infection.
The recent 230I bearing sequence from Russia also demonstrates that 158E and 225G combination. A more current sequence from Australia, OzBrisbane209_51F_2010_08_09, shows a tendency toward this framing via domaining with 156E and matching the 225G while also carrying the H7N7 viral conjunctivitis-correlated polymorphism of HA 188T. Perhaps the SNP coding for the Southern Hemisphere 156E will be discovered in the animal reservoir of H7N7 or H9N2, paralleling the potential donor pools for 188T and 454N onto the human pandemic.
Declaration of Pandemic conclusion via press release has not effectively prevented emergent behaviour in this zoonoticly-active disease reservoir. Influenza Flux is apparently ongoing as the world remains in a pre-PF11Ω phase.
An enterprising question might be, “How many Hydra strains of Vaccine Escape capacity will co-circulate in this Northern Hemisphere winter?”
. . . . ChinaJiangsuNanjing1_2010_06_30 (
. . . . . . . . 131P,
. . . . . . . . 158E [H3N8, H5N1],
. . . . . . . . 225G,
. . . . . . . . 454G [Unique to PF11 Jiangsu],
. . . . . . . . 488N [H3N8 2009, H6, H9N2, NewJersey01_2010_01_01])
. . . . ChinaJiangsuNanjing2_2010_06_30 (
. . . . . . . . 131P,
. . . . . . . . 158E [H3N8, H5N1],
. . . . . . . . 225G,
. . . . . . . . 454G [Unique to PF11 Jiangsu],
. . . . . . . . 488N [H3N8 2009, H6, H9N2, NewJersey01_2010_01_01])
. . . . ChinaJiangsu1_2009_11_20_re (
. . . . . . . . 131P,
. . . . . . . . 158E [H3N8, H5N1],
. . . . . . . . 225G,
. . . . . . . . 454G [Unique to PF11 Jiangsu],
. . . . . . . . 488N [H3N8 2009, H6, H9N2, NewJersey01_2010_01_01])
. . . . ChinaJiangsu2_2009_11_13_re (
. . . . . . . . 131P,
. . . . . . . . 158E [H3N8, H5N1],
. . . . . . . . 225G,
. . . . . . . . 454G [Unique to PF11 Jiangsu],
. . . . . . . . 488N [H3N8 2009, H6, H9N2, NewJersey01_2010_01_01])
. . . . ChinaJiangsuS61_2009_11_10 (
. . . . . . . . 54R,
. . . . . . . . 84G [Unique to GenBank PF11],
. . . . . . . . 131P,
. . . . . . . . 158E [H3N8, H5N1],
. . . . . . . . 211R [swOR4060_2009_12_31],
. . . . . . . . 225G,
. . . . . . . . syn319T [MississippiAF2473_2010_03_04 with 60T, 225E,
. . . . . . . . . . . . . . . FloridaAF2199_2010_03_11 with 60T, 225E,
. . . . . . . . . . . . . . . YaroslavlIIV196_2009_12_04_f with 225G
. . . . . . . . . . . . . . . SpainCatS1236_2009_08_13 with 225E,
. . . . . . . . . . . . . . . Finland612_2009_07_21 with 225E,
. . . . . . . . . . . . . . . KazAstana818_2009_07,
. . . . . . . . . . . . . . . KazAlmati01_2009 with 225E],
. . . . . . . . 454G [Unique to PF11 Jiangsu],
. . . . . . . . 488N [H3N8 2009, H6, H9N2, NewJersey01_2010_01_01])
. . . . ChinaJiangsuS62_2009_11_10 (
. . . . . . . . 60T [MississippiAF2473_2010_03_04 with 225E, syn319T,
. . . . . . . . . . . FloridaAF2199_2010_03_11 with 225E, syn319T],
. . . . . . . . 131P,
. . . . . . . . 158E [H3N8, H5N1],
. . . . . . . . 225G,
. . . . . . . . 454G [Unique to PF11 Jiangsu],
. . . . . . . . 481G,
. . . . . . . . 488N [H3N8 2009, H6, H9N2, NewJersey01_2010_01_01])
Supporting Sequences
. . . . RussiaBelgorod2_2010_03_15 (
. . . . . . . . syn13N [WiscD0459_2009_12_18_xL
. . . . . . . . . . . . . . . . . . with 189T, 324I & 499K,
. . . . . . . . . . . . . . LouisianaAF2435_2009_11_30
. . . . . . . . . . . . . . . . . . with syn338G],
. . . . . . . . 77N [tn, swine, S5]
. . . . . . . . . . . [JapanOsaka60_2010_07_02
. . . . . . . . . . . . . . . . with syn276H,
. . . . . . . . . . . Maryland04_2010_02_08
. . . . . . . . . . . . . . . . with syn276H,
. . . . . . . . . . . ShandongShizhongSWL24_2010_01_24,
. . . . . . . . . . . NY7020_2009_12_14
. . . . . . . . . . . . . . . . with syn166K & 189T,
. . . . . . . . . . . CalifVRDL115_2009_12_04
. . . . . . . . . . . . . . . . with syn276H,
. . . . . . . . . . . JapanAF2267_2009_11_09
. . . . . . . . . . . . . . . . with 286E,
. . . . . . . . . . . NevadaAF2490_2009_11_02
. . . . . . . . . . . . . . . . with 100N & syn270I,
. . . . . . . . . . . AlaskaAF2093_2009_11_02
. . . . . . . . . . . . . . . . with 286E,
. . . . . . . . . . . Russia74_2009_11_01_xL,
. . . . . . . . . . . ThailandTHB0441_2009_07_28,
. . . . . . . . . . . Lisboa40_2009_06_23,
. . . . . . . . . . . AnhuiSWL1_2009_06_18
. . . . . . . . . . . . . . . . with 275I,
. . . . . . . . . . . Lithuania1942_2009,
. . . . . . . . . . . swKoreaSCJ10_2009_12,
. . . . . . . . . . . swKoreaSCJ09_2009_12]
. . . . . . . . 158E mix,
. . . . . . . . 225G (Gga) stepwise from 225E,
. . . . . . . . 230I (ATa),
. . . . . . . . 238D [H2N3, H7N3, H7N7, tn, swine],
. . . . . . . . . . . . [PNG_Goroka17_2010_04_14,
. . . . . . . . . . . . AthensINS398_2010_01_24,
. . . . . . . . . . . . AthensINS339_2009_12_30,
. . . . . . . . . . . . Kaliningrad01_11M_2009_11_02
. . . . . . . . . . . . . . . . . . with 225E & 226R,
. . . . . . . . . . . . KaliningradCRIE_DA_2009_09_26,
. . . . . . . . . . . . KaliningradCRIE_KG_2009_09_25,
. . . . . . . . . . . . KaliningradCRIE_SHD_2009_09_25,
. . . . . . . . . . . . KaliningradCRIE_MA_2009_09_25,
. . . . . . . . . . . . KaliningradCRIE_ZD_2009_09_25],
. . . . . . . . syn245F [H2N3, H5N1, H7N7, H10N7, H11]
. . . . . . . . . . . . . . [SingON2416_2009_12_15
. . . . . . . . . . . . . . . . . . . . . with syn166K & 300P,
. . . . . . . . . . . . . . . EgyptAswan2288_2009_11_02
. . . . . . . . . . . . . . . . . . . . . with 189T],
. . . . . . . . 300S [H7N3, H7N7 (tCt)],
. . . . . . . . 305N (AAc) [ThaiChiangRai226_2M_2010_03_04
. . . . . . . . . . . . . . . . . . . . . . . with 270T,
. . . . . . . . . . . . . . . . . . Brunei5_52M_2010,
. . . . . . . . . . . . . . . . . . SouthCarolinaAF2562_2009_11_15 (AAt),
. . . . . . . . . . . . . . . . . . DenmarkAalborgINS133_2009_12_02 (AAt)],
. . . . . . . . syn343G [H3N8, H5N1, H6N1, H7N3, H7N7, H10N7, H11, 1918],
. . . . . . . . . . . . . . . [Thuringen189_2009_11_24_xL,
. . . . . . . . . . . . . . . Thuringen227_11_17_xL])
. . . . Brisbane209_51F_2010_08_09 (
. . . . . . . . 156E,
. . . . . . . . 188T [H6N1, H7N7],
. . . . . . . . 225G,
. . . . . . . . syn338G [H3N8, H4, H5, H6, sw],
. . . . . . . . . . . . . . . [Victoria670_30M_2010_11_14
. . . . . . . . . . . . . . . . . . . . . with 188T, 454N,
. . . . . . . . . . . . . . . Emergent across Australia
. . . . . . . . . . . . . . . . . . . . . during late 2010 season,
. . . . . . . . . . . . . . . Florida14_24M_2010_08_05
. . . . . . . . . . . . . . . . . . . . . with 188T, 454N,
. . . . . . . . . . . . . . . OZVictoria512_2010_07_30
. . . . . . . . . . . . . . . . . . . . . with 188T, 454N,
. . . . . . . . . . . . . . . NZChristchurch15_2010_07_12
. . . . . . . . . . . . . . . . . . . . . with 188T, 454N,
. . . . . . . . . . . . . . . India5107_2010_06_28
. . . . . . . . . . . . . . . . . . . . . with 188T, 454N,
. . . . . . . . . . . . . . . MississippiAF2474_2010_03_10
. . . . . . . . . . . . . . . . . . . . . with syn235T,
. . . . . . . . . . . . . . . FloridaAF2197_2010_03_07
. . . . . . . . . . . . . . . . . . . . . with 156T,
. . . . . . . . . . . . . . . CalifVRDL9_2010_02_09
. . . . . . . . . . . . . . . . . . . . . with syn193S,
. . . . . . . . . . . . . . . Georgia06_2010_02_05
. . . . . . . . . . . . . . . . . . . . . with syn161Y,
. . . . . . . . . . . . . . . NY4662_2010_02_03
. . . . . . . . . . . . . . . . . . . . . with 97N, syn276H, syn283Q, syn304G,
. . . . . . . . . . . . . . . TexasJMS406_2010_01_10
. . . . . . . . . . . . . . . . . . . . . with 187A, syn193S, syn283Q,
. . . . . . . . . . . . . . . TexasJMS405_2010_01_09
. . . . . . . . . . . . . . . . . . . . . with 187A, syn283Q,
. . . . . . . . . . . . . . . CalifVRDL131_2009_12_30
. . . . . . . . . . . . . . . . . . . . . with 225G, syn455Q,
. . . . . . . . . . . . . . . LouisianaAF2435_2009_11_30
. . . . . . . . . . . . . . . . . . . . . with syn13N,
. . . . . . . . . . . . . . . Vienna291_2009_11_19
. . . . . . . . . . . . . . . catOregon29573_2009_11_09
. . . . . . . . . . . . . . . . . . . . . with 226R, syn283Q,
. . . . . . . . . . . . . . . Calif_SanDiegoINS63_2009_10_26
. . . . . . . . . . . . . . . . . . . . . with syn283Q, et al],
. . . . . . . . 377K [H9N2],
. . . . . . . . 454N [H7N3, H7N7, H9N2],
. . . . . . . . . . [Florida14_24M_2010_08_05
. . . . . . . . . . . . . . . . . . with 188T, 454N,
. . . . . . . . . . FL_Pen210_2009_11_10
. . . . . . . . . . . . . . . . . . with 225E,
. . . . . . . . . . SouthCarolina18_2009_09_16_VxX
. . . . . . . . . . . . . . . . . . with 159D, 224K,
. . . . . . . . . . Texas45131774_2009_09_13
. . . . . . . . . . . . . . . . . . with syn223V,
. . . . . . . . . . IndiaPune9355_2009_08
. . . . . . . . . . . . . . . . . . with 225G,
. . . . . . . . . . IndiaBlore236_2009_06_xL
. . . . . . . . . . . . . . . . . . with 226R, et al],
. . . . . . . . syn465N)
