[Term] id: PR:000050267 name: spike protein S1 (SARS-CoV-2) def: "A spike glycoprotein, signal peptide removed form (SARS-CoV-2) that has been processed by proteolytic cleavage to yield the N-terminal portion. UniProtKB:P0DTC2, 13-685." [PRO:DAN, UniProtKB:P0DTC2] comment: Category=organism-modification. Note: 672 aa protein. synonym: "S1 (SARS2)" EXACT PRO-short-label [PRO:DAN] synonym: "PRO_0000449647" EXACT PRO-proteoform-ftid [PRO:DAN] synonym: "UniProtKB:P0DTC2, 13-685" EXACT PRO-proteoform-std [PRO:DAN] is_a: PR:000050266 ! spike glycoprotein, signal peptide removed form (SARS-CoV-2) relationship: output_of GO:0016485 ! protein processing relationship: only_in_taxon NCBITaxon:2697049 ! Severe acute respiratory syndrome coronavirus 2