Pabedaan antaro revisi dari "Antigen"

'''Antigen''' (disingkek '''Ag''') adolah zat apo sajo nan mampu manyababkan [[sistem imun]] maasilkan [[antibodi]] nan spesifik,<ref name="medlineag">{{Cite web|last=|first=|date=|title=Antigen: MedlinePlus Medical Encyclopedia|url=https://medlineplus.gov/ency/article/002224.htm|website=Medline Plus|access-date=23 Desember 2020}}</ref> nan mampu baikatan jo sajumlah komponen sistem imun. Antigen marupoan [[molekul]] atau [[struktur]] molekul, saparti nan ado di bagian lua suatu [[patogen]], nan dapek diikek dek antibodi nan spesifik taadok antigen tasabuik atau dek [[Reseptor (biokimia)|reseptor]] antigen [[sel B]].<ref name="gen">{{Cite web|date=2020|title=Antibody|url=https://www.genome.gov/genetics-glossary/Antibody|publisher=National Human Genome Research Institute, US National Institutes of Health|access-date=13 October 2020}}</ref> Tanggapan yang diberikan oleh sistem imun disebut [[respons imun]]. Singkatan Ag sendiri marupoan kapanjangan dari ''antibody generator'' atau pambangkik antibodi.<ref>{{Cite book|last=Male|first=David K.|date=2006|url=https://books.google.com/books?id=gE6o5ZRJUawC&q=antibody+generator&pg=PA10|title=Immunology|publisher=Elsevier Health Sciences|isbn=978-0323033992|pages=10|language=en}}</ref>. Antigen "dijadian sasaran" dek antibodi.<ref name="gen" /> Satiok antibodi diproduksi sacaro khusus dek sistem imun untuak disasuaian jo antigen satalah [[Sel penyaji antigen|sel-sel]] dalam sistem imun basingguangan jo antigen tasabuik; proses iko digunoan untuak maidentifikasi antigen sacaro tapek, mamproduksi antibodi nan sasuai, nan mainisiasi timbuanyo [[Sistem imun adaptif|respons imun adaptif]].<ref name="gen" /><ref name="mlp">{{Cite web|date=28 September 2020|title=Immune system and disorders|url=https://medlineplus.gov/immunesystemanddisorders.html|publisher=MedlinePlus, US National Institute of Medicine|access-date=13 October 2020}}</ref> Antibodi dikatokan "sesuai" jo antigen dalam arti bahwsonyo inyo dapek mangikeknyo akibek adaptasi molekuler pado [[fragmen pangikek antigen]].<ref name="gen" /> Dalam kabanyakan kasus, antibodi hanyo dapek bareaksi nan mangikek satu antigen tatantu; dalam babarapo kasus lain, antibodi dapek [[Reaktivitas silang|bareaksi silang]] nan mangikek labiah dari ciek antigen. Antigen dapek barupo molekul [[protein]], [[peptida]] (rantai [[asam amino]]), jo [[polisakarida]] (rantai [[monosakarida]]/gula sadarano), samantaro molekul [[lipid]] jo [[asam nukleat]] manjadi antigen jiko hanyo digabuangan jo protein sarato polisakarida.<ref name="ReferenceA">{{Cite journal|last=Gavin|first=AL|last2=Hoebe|first2=K|last3=Duong|first3=B|last4=Ota|first4=T|last5=Martin|first5=C|last6=Beutler|first6=B|last7=Nemazee|first7=D|date=22 December 2006|title=Adjuvant-enhanced antibody responses in the absence of toll-like receptor signaling|journal=Science|volume=314|issue=5807|pages=1936–38|bibcode=2006Sci...314.1936G|doi=10.1126/science.1135299|pmc=1868398|pmid=17185603}}</ref>