PMID- 10993939 OWN - NLM STAT- MEDLINE DCOM- 20001115 LR - 20200213 IS - 0022-1317 (Print) IS - 0022-1317 (Linking) VI - 81 IP - Pt 10 DP - 2000 Oct TI - Variations in the major envelope glycoprotein GP5 of Czech strains of porcine reproductive and respiratory syndrome virus. PG - 2497-2502 LID - 10.1099/0022-1317-81-10-2497 [doi] AB - The major envelope glycoprotein genes (ORF5) of seven Czech isolates of porcine reproductive and respiratory syndrome virus (PRRSV) were amplified and their nucleotide sequences were determined. ORF5 displayed nucleotide and amino acid identities of 87.5-100% and 87. 6-100%, respectively, among the isolates. In a phylogenetic tree, all European isolates were grouped in a genotype distinct from that of reference American strains (VR-2332, IAF-Klop). Among the European isolates, two different clades were identified. Two Czech isolates (V-501 and V-503) and Italian strain PRRSV 2156 fell into one clade. The remaining European strains comprised the second clade. Surprisingly, two separately clustered strains (V-501 and V-516) were isolated from the same herd. Additionally, the possible effect of in vitro cultivation on the nucleotide sequence was analysed. Nine point mutations in the ORF5 region resulted from 152 in vitro passages of the V-502 isolate in MARC-145 cells. FAU - Indik, Stanislav AU - Indik S AD - Veterinary Research Institute, Hudcova 70, Brno 621 32, Czech Republic1. FAU - Valicek, Lubomir AU - Valicek L AD - Veterinary Research Institute, Hudcova 70, Brno 621 32, Czech Republic1. FAU - Klein, Dieter AU - Klein D AD - University of Veterinary Sciences, Veterinarplatz 1, A-1210 Vienna, Austria2. FAU - Klanova, Jana AU - Klanova J AD - Faculty of Science, Masaryk University, Kotlarska 2, Brno 611 37, Czech Republic3. LA - eng SI - GENBANK/AF253531 SI - GENBANK/AF253532 SI - GENBANK/AF253533 SI - GENBANK/AF253534 SI - GENBANK/AF253535 SI - GENBANK/AF253536 SI - GENBANK/AF253537 PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - J Gen Virol JT - The Journal of general virology JID - 0077340 RN - 0 (DNA, Viral) RN - 0 (Membrane Glycoproteins) RN - 0 (Viral Envelope Proteins) RN - 0 (glycoprotein 5, PRRSV) SB - IM MH - Amino Acid Sequence MH - Animals MH - Base Sequence MH - Czech Republic MH - DNA, Viral/chemistry MH - Membrane Glycoproteins/*genetics MH - Molecular Sequence Data MH - Point Mutation MH - Porcine respiratory and reproductive syndrome virus/*genetics MH - Sequence Alignment MH - Swine MH - Viral Envelope Proteins/*genetics EDAT- 2000/09/20 11:00 MHDA- 2001/02/28 10:01 CRDT- 2000/09/20 11:00 PHST- 2000/09/20 11:00 [pubmed] PHST- 2001/02/28 10:01 [medline] PHST- 2000/09/20 11:00 [entrez] AID - 10.1099/0022-1317-81-10-2497 [doi] PST - ppublish SO - J Gen Virol. 2000 Oct;81(Pt 10):2497-2502. doi: 10.1099/0022-1317-81-10-2497.