PMID- 10973697 OWN - NLM STAT- MEDLINE DCOM- 20001122 LR - 20201208 IS - 0378-1135 (Print) IS - 0378-1135 (Linking) VI - 76 IP - 3 DP - 2000 Oct 1 TI - Analysis of ORF 1 in European porcine reproductive and respiratory syndrome virus by long RT-PCR and restriction fragment length polymorphism (RFLP) analysis. PG - 221-8 AB - A rapid method was developed for partial characterization of the replicase-encoding open reading frame 1 (ORF 1) of porcine reproductive and respiratory syndrome virus (PRRSV). It comprised long RT-PCR amplification of 11.1 kb (94%) of ORF 1, followed by restriction fragment length polymorphism analysis. The method was used to compare ORF 1 sequences of two divergent European-type PRRSV strains. Our results indicated that the structural and replicase parts of these two strains had evolved at overall similar rates. FAU - Nielsen, H S AU - Nielsen HS AD - Danish Veterinary Institute for Virus Research, Ministry of Agriculture and Fisheries, Lindholm, DK-4771 Kalvehave, Denmark. FAU - Storgaard, T AU - Storgaard T FAU - Oleksiewicz, M B AU - Oleksiewicz MB LA - eng PT - Journal Article PL - Netherlands TA - Vet Microbiol JT - Veterinary microbiology JID - 7705469 RN - 0 (DNA, Complementary) RN - 0 (RNA, Viral) RN - EC 2.7.7.48 (RNA-Dependent RNA Polymerase) SB - IM MH - Blotting, Southern/veterinary MH - Cloning, Molecular MH - DNA, Complementary/chemistry MH - *Open Reading Frames MH - Polymorphism, Restriction Fragment Length MH - Porcine respiratory and reproductive syndrome virus/*genetics MH - RNA, Viral/chemistry MH - RNA-Dependent RNA Polymerase/*metabolism MH - Reverse Transcriptase Polymerase Chain Reaction/*veterinary EDAT- 2000/09/06 11:00 MHDA- 2001/02/28 10:01 CRDT- 2000/09/06 11:00 PHST- 2000/09/06 11:00 [pubmed] PHST- 2001/02/28 10:01 [medline] PHST- 2000/09/06 11:00 [entrez] AID - S0378-1135(00)00258-3 [pii] AID - 10.1016/s0378-1135(00)00258-3 [doi] PST - ppublish SO - Vet Microbiol. 2000 Oct 1;76(3):221-8. doi: 10.1016/s0378-1135(00)00258-3.