Adenoviruses and cytomegalo virus use to reduce the surface expression of class I MHC molecules, 

Measles virus and HIV, reduce levels of class II MHC molecules on the surface, 

Vaccinia virus, secreting a protein that binds to the C4b complement component.

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Pattern recognition receptors (PRRs)

Receptors of the innate immune system that recognize molecular patterns or motifs present on pathogens but absent in the host.

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Pattern recognition

Families of PRRs (TLRs, CLRs, RLRs, and NLRs) recognize a wide variety of PAMP (and DAMP) ligands.

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#Id: 9893

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Toll-Like Receptors Recognize Many Types of Pathogen Molecules - Vertebrate Toll-like receptors  are dimers of chains with extracellular leucine-rich (LRR) domains that bind PAMPs and DAMPs. 

TLS Online TPP Program

#Id: 9894

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TLS Online TPP Program

#Id: 9895

#XL - T Zoology

TLS Online TPP Program

#Id: 9896

#XL - T Zoology