{"id":230207,"date":"2026-01-31T01:21:07","date_gmt":"2026-01-31T07:21:07","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/01\/immunoglobulin-gs-overlooked-hinge-turns-out-to-be-a-structural-control-hub"},"modified":"2026-01-31T01:21:07","modified_gmt":"2026-01-31T07:21:07","slug":"immunoglobulin-gs-overlooked-hinge-turns-out-to-be-a-structural-control-hub","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/01\/immunoglobulin-gs-overlooked-hinge-turns-out-to-be-a-structural-control-hub","title":{"rendered":"Immunoglobulin G\u2019s overlooked hinge turns out to be a structural control hub"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/immunoglobulin-gs-overlooked-hinge-turns-out-to-be-a-structural-control-hub2.jpg\"><\/a><\/p>\n<p>The lower hinge of immunoglobulin G (IgG), an overlooked part of the antibody, acts as a structural and functional control hub, according to a study by researchers at Science Tokyo. Deleting a single amino acid in this region transforms a full-length antibody into a stable half-IgG1 molecule with altered immune activity.<\/p>\n<p>The findings provide a blueprint for engineering next-generation antibody therapies with precisely tailored immune effects for treating diseases such as cancer and autoimmune diseases.<\/p>\n<p>Antibodies are Y-shaped proteins that help the immune system recognize and eliminate foreign threats such as bacteria and viruses. The dominant antibody in the bloodstream is immunoglobulin G (IgG), which accounts for about 75% of circulating antibodies. Its structure is divided into two main functional units connected by a flexible hinge that must work together seamlessly.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The lower hinge of immunoglobulin G (IgG), an overlooked part of the antibody, acts as a structural and functional control hub, according to a study by researchers at Science Tokyo. Deleting a single amino acid in this region transforms a full-length antibody into a stable half-IgG1 molecule with altered immune activity. The findings provide a [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1902,11],"tags":[],"class_list":["post-230207","post","type-post","status-publish","format-standard","hentry","category-bioengineering","category-biotech-medical"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/230207","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=230207"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/230207\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=230207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=230207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=230207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}