Tissue expression
			
			Cell line expression
			
					
			Protein structure
		
	BTN3A1
Butyrophilin subfamily 3 member A1BT3.1, BTF5, BTN3.1, CD277 
	The butyrophilin (BTN) genes are a group of major histocompatibility complex (MHC)-associated genes that encode type I membrane proteins with 2 extracellular immunoglobulin (Ig) domains and an intracellular B30.2 (PRYSPRY) domain. Three subfamilies of human BTN genes are located in the MHC class I region: the single-copy BTN1A1 gene (MIM 601610) and the BTN2 (e.g., BTN2A1; MIM 613590) and BTN3 (e.g., BNT3A1) genes, which have undergone tandem duplication, resulting in 3 copies of each (summary by Smith et al., 2010 [PubMed 20208008]). [supplied by OMIM, Nov 2010]
	
					Top validated antibodies | 
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| Proteintech Group | 4 references | Polyclonal | 
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| Novus Biologicals | 1 references | Polyclonal | 
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| Invitrogen Antibodies | 4 references | Monoclonal | 
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| antibodies-online | 5 references | Polyclonal | 
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| Atlas Antibodies | 1 references | Polyclonal | 
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