PMID- 20032174 OWN - NLM STAT- MEDLINE DCOM- 20100402 LR - 20211020 IS - 1098-5514 (Electronic) IS - 0022-538X (Print) IS - 0022-538X (Linking) VI - 84 IP - 6 DP - 2010 Mar TI - Identification of the CD163 protein domains involved in infection of the porcine reproductive and respiratory syndrome virus. PG - 3101-5 LID - 10.1128/JVI.02093-09 [doi] AB - Scavenger receptor CD163 is a key entry mediator for porcine reproductive and respiratory syndrome virus (PRRSV). To identify the CD163 protein domains involved in PRRSV infection, deletion mutants and chimeric mutants were created. Infection experiments revealed that scavenger receptor cysteine-rich (SRCR) domain 5 (SRCR 5) is essential for PRRSV infection, while the four N-terminal SRCR domains and the cytoplasmic tail are not required. The remaining CD163 protein domains need to be present but can be replaced by corresponding SRCR domains from CD163-L1, resulting in reduced (SRCR 6 and interdomain regions) or unchanged (SRCR 7 to SRCR 9) infection efficiency. In addition, CD163-specific antibodies recognizing SRCR 5 are able to reduce PRRSV infection. FAU - Van Gorp, Hanne AU - Van Gorp H AD - Department of Virology, Parasitology and Immunology, Ghent University, 9820 Merelbeke, Belgium. FAU - Van Breedam, Wander AU - Van Breedam W FAU - Van Doorsselaere, Jan AU - Van Doorsselaere J FAU - Delputte, Peter L AU - Delputte PL FAU - Nauwynck, Hans J AU - Nauwynck HJ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20091223 PL - United States TA - J Virol JT - Journal of virology JID - 0113724 RN - 0 (Antigens, CD) RN - 0 (Antigens, Differentiation, Myelomonocytic) RN - 0 (CD163 antigen) RN - 0 (Protein Isoforms) RN - 0 (Receptors, Cell Surface) RN - 0 (Recombinant Fusion Proteins) RN - 0 (Scavenger Receptors, Class B) SB - IM MH - Animals MH - Antigens, CD/*chemistry/genetics/*metabolism MH - Antigens, Differentiation, Myelomonocytic/*chemistry/genetics/*metabolism MH - Humans MH - Porcine Reproductive and Respiratory Syndrome/*metabolism/virology MH - Porcine respiratory and reproductive syndrome virus/genetics/*metabolism/pathogenicity MH - Protein Isoforms/chemistry/genetics/metabolism MH - Protein Structure, Tertiary MH - Receptors, Cell Surface/*chemistry/genetics/*metabolism MH - Recombinant Fusion Proteins/chemistry/genetics/metabolism MH - Scavenger Receptors, Class B/genetics/metabolism MH - Sequence Deletion MH - Swine MH - Virus Internalization PMC - PMC2826032 EDAT- 2009/12/25 06:00 MHDA- 2010/04/03 06:00 PMCR- 2010/09/01 CRDT- 2009/12/25 06:00 PHST- 2009/12/25 06:00 [entrez] PHST- 2009/12/25 06:00 [pubmed] PHST- 2010/04/03 06:00 [medline] PHST- 2010/09/01 00:00 [pmc-release] AID - JVI.02093-09 [pii] AID - 2093-09 [pii] AID - 10.1128/JVI.02093-09 [doi] PST - ppublish SO - J Virol. 2010 Mar;84(6):3101-5. doi: 10.1128/JVI.02093-09. Epub 2009 Dec 23.