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/ yang-2020-12 in vitro In vitro ms of complexes mass spectrometry studies of complexes ms of complexes predetermined predetermined participant predetermined Yang Y., Du Y., Kaltashov IA. Virus - Publications including interactions involving viral proteins Native MS combined with a gas-phase ion manipulation technique -"limited charge reduction"; based on mass selecting a narrow distribution of ionic species followed by their incomplete charge reduction;this results in a reduction of the extent of multiple charging of RBD ions without fragmentation. The progeny ions have the same narrow mass distribution as the parent ions, but their charges differ from parent ions, giving rise to very distinct and easily interpretable signals in mass spectra. kaltashov@chem.umass.edu Analytical chemistry 2020 Only protein-protein interactions imex curation imex curation Coronavirus - Interactions investigated in the context of Coronavirus spike_sars2 Spike glycoprotein S E2 Peplomer protein 2 protein protein SARS-CoV-2 SARS-CoV-2 SARS-CoV-2 Severe acute respiratory syndrome coronavirus 2 2019-nCoV MFVFLVLLPLVSSQCVNLTTRTQLPPAYTNSFTRGVYYPDKVFRSSVLHSTQDLFLPFFSNVTWFHAIHVSGTNGTKRFDNPVLPFNDGVYFASTEKSNIIRGWIFGTTLDSKTQSLLIVNNATNVVIKVCEFQFCNDPFLGVYYHKNNKSWMESEFRVYSSANNCTFEYVSQPFLMDLEGKQGNFKNLREFVFKNIDGYFKIYSKHTPINLVRDLPQGFSALEPLVDLPIGINITRFQTLLALHRSYLTPGDSSSGWTAGAAAYYVGYLQPRTFLLKYNENGTITDAVDCALDPLSETKCTLKSFTVEKGIYQTSNFRVQPTESIVRFPNITNLCPFGEVFNATRFASVYAWNRKRISNCVADYSVLYNSASFSTFKCYGVSPTKLNDLCFTNVYADSFVIRGDEVRQIAPGQTGKIADYNYKLPDDFTGCVIAWNSNNLDSKVGGNYNYLYRLFRKSNLKPFERDISTEIYQAGSTPCNGVEGFNCYFPLQSYGFQPTNGVGYQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKCVNFNFNGLTGTGVLTESNKKFLPFQQFGRDIADTTDAVRDPQTLEILDITPCSFGGVSVITPGTNTSNQVAVLYQDVNCTEVPVAIHADQLTPTWRVYSTGSNVFQTRAGCLIGAEHVNNSYECDIPIGAGICASYQTQTNSPRRARSVASQSIIAYTMSLGAENSVAYSNNSIAIPTNFTISVTTEILPVSMTKTSVDCTMYICGDSTECSNLLLQYGSFCTQLNRALTGIAVEQDKNTQEVFAQVKQIYKTPPIKDFGGFNFSQILPDPSKPSKRSFIEDLLFNKVTLADAGFIKQYGDCLGDIAARDLICAQKFNGLTVLPPLLTDEMIAQYTSALLAGTITSGWTFGAGAALQIPFAMQMAYRFNGIGVTQNVLYENQKLIANQFNSAIGKIQDSLSSTASALGKLQDVVNQNAQALNTLVKQLSSNFGAISSVLNDILSRLDKVEAEVQIDRLITGRLQSLQTYVTQQLIRAAEIRASANLAATKMSECVLGQSKRVDFCGKGYHLMSFPQSAPHGVVFLHVTYVPAQEKNFTTAPAICHDGKAHFPREGVFVSNGTHWFVTQRNFYEPQIITTDNTFVSGNCDVVIGIVNNTVYDPLQPELDSFKEELDKYFKNHTSPDVDLGDISGINASVVNIQKEIDRLNEVAKNLNESLIDLQELGKYEQYIKWPWYIWLGFIAGLIAIVMVTIMLCCMTSCCSCLKGCCSCGSCCKFDEDDSEPVLKGVKLHYT fondaparinux fondaparinux fondaparin Natural heparin pentasaccharide methyl 2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranosyl-(1->4)-beta-D-glucopyranuronosyl-(1->4)-2-deoxy-3,6-di-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranosyl-(1->4)-2-O-sulfo-alpha-L-idopyranuronosyl-(1->4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-gl small molecule small molecule chemical synthesis Chemical synthesis (Chemical synthesis) heparin icosasaccharide heparin icosasaccharide heparin eicosasaccharide heparin eicosasaccharides heparin icosasaccharides small molecule small molecule chemical synthesis Chemical synthesis (Chemical synthesis) ace2_human Angiotensin-converting enzyme 2 ACE2 UNQ868/PRO1885 Angiotensin-converting enzyme homolog Metalloprotease MPROT15 Angiotensin-converting enzyme-related carboxypeptidase protein protein human Homo sapiens Human MSSSSWLLLSLVAVTAAQSTIEEQAKTFLDKFNHEAEDLFYQSSLASWNYNTNITEENVQNMNNAGDKWSAFLKEQSTLAQMYPLQEIQNLTVKLQLQALQQNGSSVLSEDKSKRLNTILNTMSTIYSTGKVCNPDNPQECLLLEPGLNEIMANSLDYNERLWAWESWRSEVGKQLRPLYEEYVVLKNEMARANHYEDYGDYWRGDYEVNGVDGYDYSRGQLIEDVEHTFEEIKPLYEHLHAYVRAKLMNAYPSYISPIGCLPAHLLGDMWGRFWTNLYSLTVPFGQKPNIDVTDAMVDQAWDAQRIFKEAEKFFVSVGLPNMTQGFWENSMLTDPGNVQKAVCHPTAWDLGKGDFRILMCTKVTMDDFLTAHHEMGHIQYDMAYAAQPFLLRNGANEGFHEAVGEIMSLSAATPKHLKSIGLLSPDFQEDNETEINFLLKQALTIVGTLPFTYMLEKWRWMVFKGEIPKDQWMKKWWEMKREIVGVVEPVPHDETYCDPASLFHVSNDYSFIRYYTRTLYQFQFQEALCQAAKHEGPLHKCDISNSTEAGQKLFNMLRLGKSEPWTLALENVVGAKNMNVRPLLNYFEPLFTWLKDQNKNSFVGWSTDWSPYADQSIKVRISLKSALGDKAYEWNDNEMYLFRSSVAYAMRQYFLKVKNQMILFGEEDVRVANLKPRISFNFFVTAPKNVSDIIPRTEVEKAIRMSRSRINDAFRLNDNSLEFLGIQPTLGPPNQPPVSIWLIVFGVVMGVIVVGIVILIFTGIRDRKKKNKARSGENPYASIDISKGENNPGFQNTDDVQTSF mint Carboxypeptidase which converts angiotensin I to angiotensin 1-9, a peptide of unknown function, and angiotensin II to angiotensin 1-7, a vasodilator. Also able to hydrolyze apelin-13 and dynorphin-13 with high efficiency. May be an important regulator of heart function. In case of human coronaviruses SARS and HCoV-NL63 infections, serve as functional receptor for the spike glycoprotein of both coronaviruses s-59 3947873 N/A 3947874 unspecified role unspecified role neutral component neutral component purified purified 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 rbd sufficient to bind sufficient binding region sufficient to bind certain certain sequence position certain certain certain sequence position certain false 9inse 9inse Stoichiometry: 2.0 direct interaction direct interaction false false false 1A, Supp. figure 2 Analysis of the minor ionic species (m/z 4200–6500) led to their assignment as the RBD dimers with an average MW 65.5 kDa. fondaparinux-s-1 3947873 N/A 3947875 unspecified role unspecified role neutral component neutral component chemical synthesis Chemical synthesis (Chemical synthesis) Stoichiometry: 1.0 N/A 3947874 unspecified role unspecified role neutral component neutral component purified purified 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 rbd sufficient to bind sufficient binding region sufficient to bind certain certain sequence position certain certain certain sequence position certain false 9inse 9inse Stoichiometry: 1.0 direct interaction direct interaction false false false 1B heparin icosasaccharide-s-1 3947873 N/A 3947876 unspecified role unspecified role neutral component neutral component chemical synthesis Chemical synthesis (Chemical synthesis) Stoichiometry: 1.0 N/A 3947874 unspecified role unspecified role neutral component neutral component purified purified 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 rbd sufficient to bind sufficient binding region sufficient to bind certain certain sequence position certain certain certain sequence position certain false 9inse 9inse Stoichiometry: 1.0 direct interaction direct interaction false false false 1C ace2-75 3947873 N/A 3947877 unspecified role unspecified role neutral component neutral component purified purified 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 ecd sufficient to bind sufficient binding region sufficient to bind certain certain sequence position certain certain certain sequence position certain false 9inse 9inse Stoichiometry: 2.0 direct interaction direct interaction false false false Supp. figure 3 ace2-76 3947873 N/A 3947877 unspecified role unspecified role neutral component neutral component purified purified 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 ecd sufficient to bind sufficient binding region sufficient to bind certain certain sequence position certain certain certain sequence position certain false 9inse 9inse Stoichiometry: 2.0 N/A 3947874 unspecified role unspecified role neutral component neutral component purified purified 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 rbd sufficient to bind sufficient binding region sufficient to bind certain certain sequence position certain certain certain sequence position certain false 9inse 9inse Stoichiometry: 2.0 direct interaction direct interaction false false false Figure 3A ace2-fondaparinux-1 3947873 N/A 3947877 unspecified role unspecified role neutral component neutral component purified purified 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 ecd sufficient to bind sufficient binding region sufficient to bind certain certain sequence position certain certain certain sequence position certain false 9inse 9inse Stoichiometry: 2.0 N/A 3947875 inhibitor inhibitor neutral component neutral component chemical synthesis Chemical synthesis (Chemical synthesis) N/A 3947874 unspecified role unspecified role neutral component neutral component purified purified 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 rbd sufficient to bind sufficient binding region sufficient to bind certain certain sequence position certain certain certain sequence position certain false 9inse 9inse Stoichiometry: 2.0 direct interaction direct interaction false false false Figure 3B ace2-heparin icosasaccharide-1 3947873 N/A 3947877 unspecified role unspecified role neutral component neutral component purified purified 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 ecd sufficient to bind sufficient binding region sufficient to bind certain certain sequence position certain certain certain sequence position certain false 9inse 9inse Stoichiometry: 2.0 N/A 3947876 inhibitor inhibitor neutral component neutral component chemical synthesis Chemical synthesis (Chemical synthesis) N/A 3947874 unspecified role unspecified role neutral component neutral component purified purified 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 rbd sufficient to bind sufficient binding region sufficient to bind certain certain sequence position certain certain certain sequence position certain false 9inse 9inse Stoichiometry: 2.0 direct interaction direct interaction false false false Figure 3C