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Antigen Description
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CD155, commonly known as PVR (poliovirus receptor) and Necl-5 (nectin-like molecule-5), is a type I transmembrane single-span glycoprotein. It belongs to the nectins and nectin-like (Necl) subfamily and was originally identified based on its ability to mediate the cell attachment and entry of poliovirus (PV), an etiologic agent of the central nervous system disease poliomyelitis. CD155 undergoes cell-matrix contacts by binding to the matrix protein Vitronectin. Along with the receptor form, three soluble isoforms, μ, μ and μ, exist in human serum and cerebrospinal fluid, and CD155 mRNAs are highly expressed in liver tissue. The presence of soluble CD155 reduces polivirus entry mediated by the membrane-bound receptor, implying an important role for these soluble forms in cellular function.
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Antigen Gene Information
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Gene Name
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PVR poliovirus receptor [ Homo sapiens ]
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Official Symbol
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PVR
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Synonyms
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PVR; poliovirus receptor; PVS; CD155; HVED; Necl 5; NECL5; nectin like 5; Tage4; nectin-like 5; nectin-like protein 5; TAGE4; Necl-5; FLJ25946;
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GeneID
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5817
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mRNA Refseq
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NM_001135768
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Protein Refseq
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NP_001129240
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MIM
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173850
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UniProt ID
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P15151
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Chromosome Location
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19q13.2
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Pathway
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Adaptive Immune System, organism-specific biosystem; Adherens junctions interactions, organism-specific biosystem; Cell adhesion molecules (CAMs), organism-specific biosystem; Cell adhesion molecules (CAMs), conserved biosystem; Cell junction organization, organism-specific biosystem; Cell-Cell communication, organism-specific biosystem; Cell-cell junction organization, organism-specific biosystem;
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Function
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cell adhesion molecule binding; protein binding; receptor activity;
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