IntAct European Bioinformatics Institute IntAct intact http://www.ebi.ac.uk/ http://www.ebi.ac.uk/intact/query/${ac} EBI-[0-9]+|IA:[0-9]+ INTerAction database (IntAct) provides an open source database and toolkit for the storage, presentation and analysis of molecular interactions. http://www.ebi.ac.uk/intact European Bioinformatics Institute; Wellcome Trust Genome Campus; Hinxton, Cambridge; CB10 1SD; United Kingdom http://www.ebi.ac.uk/intact/ http://www.ebi.ac.uk/ butte-2008-1 in vitro In vitro spr surface plasmon resonance Optical biosensor BIAcore(r) BIAcore(r) Optical biosensor spr predetermined predetermined participant predetermined Butte MJ., Peña-Cruz V., Kim MJ., Freeman GJ., Sharpe AH. arlene_sharpe@hms.harvard.edu Molecular immunology 2008 imex curation Only protein-protein interactions pd1l1_human Programmed cell death 1 ligand 1 CD274 B7H1 PDCD1L1 PDCD1LG1 PDL1 B7 homolog 1 protein protein human Homo sapiens Human MRIFAVFIFMTYWHLLNAFTVTVPKDLYVVEYGSNMTIECKFPVEKQLDLAALIVYWEMEDKNIIQFVHGEEDLKVQHSSYRQRARLLKDQLSLGNAALQITDVKLQDAGVYRCMISYGGADYKRITVKVNAPYNKINQRILVVDPVTSEHELTCQAEGYPKAEVIWTSSDHQVLSGKTTTTNSKREEKLFNVTSTLRINTTTNEIFYCTFRRLDPEENHTAELVIPELPLAHPPNERTHLVILGAILLCLGVALTFIFRLRKGRMMDVKKCGIQDTNSKKQSDTHLEET cd80_human T-lymphocyte activation antigen CD80 CD80 CD28LG CD28LG1 LAB7 Activation B7-1 antigen CTLA-4 counter-receptor B7.1 BB1 protein protein human Homo sapiens Human MGHTRRQGTSPSKCPYLNFFQLLVLAGLSHFCSGVIHVTKEVKEVATLSCGHNVSVEELAQTRIYWQKEKKMVLTMMSGDMNIWPEYKNRTIFDITNNLSIVILALRPSDEGTYECVVLKYEKDAFKREHLAEVTLSVKADFPTPSISDFEIPTSNIRRIICSTSGGFPEPHLSWLENGEELNAINTTVSQDPETELYAVSSKLDFNMTTNHSFMCLIKYGHLRVNQTFNWNTTKQEHFPDNLLPSWAITLISVNGIFVICCLTYCFAPRCRERRRNERLRRESVRPV cd274-cd80-3 3134361 N/A 3134362 unspecified role unspecified role bait bait ecd sufficient to bind sufficient binding region sufficient to bind certain certain sequence position certain certain certain sequence position certain false c_terminus fc-igg tag fc-igg tag c-term range C-terminal range c-term range c-term range C-terminal range c-term range false N/A 3134363 unspecified role unspecified role prey prey ecd sufficient to bind sufficient binding region sufficient to bind certain certain sequence position certain certain certain sequence position certain false c_terminus his tag his tag Hexa-His-tag 6-His-tag Histidine-tag Hexa-His-tag Histidine-tag 6-His-tag c-term range C-terminal range c-term range c-term range C-terminal range c-term range false c_terminus fc-igg tag fc-igg tag c-term range C-terminal range c-term range c-term range C-terminal range c-term range false 3134369 3134366 direct interaction direct interaction false false false 3134361 Fig1 A/B