{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,20]],"date-time":"2026-09-20T15:12:30Z","timestamp":1789917150115,"version":"4.0.1"},"reference-count":42,"publisher":"American Society for Microbiology","issue":"6","license":[{"start":{"date-parts":[[2016,6,1]],"date-time":"2016-06-01T00:00:00Z","timestamp":1464739200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"funder":[{"DOI":"10.13039\/100000060","name":"HHS | NIH | National Institute of Allergy and Infectious Diseases","doi-asserted-by":"publisher","award":["R01 AI99125"],"award-info":[{"award-number":["R01 AI99125"]}],"id":[{"id":"10.13039\/100000060","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000097","name":"HHS | NIH | National Center for Research Resources","doi-asserted-by":"publisher","award":["C06 RR16226"],"award-info":[{"award-number":["C06 RR16226"]}],"id":[{"id":"10.13039\/100000097","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Infect Immun"],"published-print":{"date-parts":[[2016,6]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            <jats:named-content content-type=\"genus-species\">Neisseria meningitidis<\/jats:named-content>\n            causes cases of bacterial meningitis and sepsis. Factor H binding protein (FHbp) is a component of two licensed meningococcal serogroup B vaccines. FHbp recruits the complement regulator factor H (FH) to the bacterial surface, which inhibits the complement alternative pathway and promotes immune evasion. Binding of human FH impairs the protective antibody responses to FHbp, and mutation of FHbp to decrease binding of FH can increase the protective responses. In a previous study, we identified two amino acid substitutions in FHbp variant group 2 that increased its thermal stability by 21\u00b0C and stabilized epitopes recognized by protective monoclonal antibodies (MAbs). Our hypothesis was that combining substitutions to increase stability and decrease FH binding would increase protective antibody responses in the presence of human FH. In the present study, we generated four new FHbp single mutants that decreased FH binding and retained binding of anti-FHbp MAbs and immunogenicity in wild-type mice. From these mutants, we selected two, K219N and G220S, to combine with the stabilized double-mutant FHbp antigen. The two triple mutants decreased FH binding &gt;200-fold, increased the thermal stability of the N-terminal domain by 21\u00b0C, and bound better to an anti-FHbp MAb than the wild-type FHbp. In human-FH-transgenic mice, the FHbp triple mutants elicited 8- to 15-fold-higher protective antibody responses than the wild-type FHbp antigen. Collectively, the data suggest that mutations to eliminate binding of human FH and to promote conformational stability act synergistically to optimize FHbp immunogenicity.\n          <\/jats:p>","DOI":"10.1128\/iai.01491-15","type":"journal-article","created":{"date-parts":[[2016,3,29]],"date-time":"2016-03-29T02:19:06Z","timestamp":1459217946000},"page":"1735-1742","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":19,"title":["Meningococcal Factor H Binding Protein Vaccine Antigens with Increased Thermal Stability and Decreased Binding of Human Factor H"],"prefix":"10.1128","volume":"84","author":[{"given":"Raffaella","family":"Rossi","sequence":"first","affiliation":[{"name":"Center for Immunobiology and Vaccine Development, Children's Hospital Oakland Research Institute, UCSF Benioff Children's Hospital Oakland, Oakland, California, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Monica","family":"Konar","sequence":"additional","affiliation":[{"name":"Center for Immunobiology and Vaccine Development, Children's Hospital Oakland Research Institute, UCSF Benioff Children's Hospital Oakland, Oakland, California, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5734-083X","authenticated-orcid":false,"given":"Peter T.","family":"Beernink","sequence":"additional","affiliation":[{"name":"Center for Immunobiology and Vaccine Development, Children's Hospital Oakland Research Institute, UCSF Benioff Children's Hospital Oakland, Oakland, California, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.vaccine.2011.04.092"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1086\/649209"},{"key":"e_1_3_2_4_2","first-page":"608","article-title":"Use of serogroup B meningococcal vaccines in persons aged >\/=10 years at increased risk for serogroup B meningococcal disease: recommendations of the Advisory Committee on Immunization Practices, 2015","volume":"64","author":"Folaranmi T","year":"2015","unstructured":"Folaranmi T, Rubin L, Martin SW, Patel M, Macneil JR, Centers for Disease Control and Prevention. 2015. Use of serogroup B meningococcal vaccines in persons aged >\/=10 years at increased risk for serogroup B meningococcal disease: recommendations of the Advisory Committee on Immunization Practices, 2015. MMWR Morb Mortal Wkly Rep 64:608\u2013612.","journal-title":"MMWR Morb Mortal Wkly Rep"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1128\/IAI.72.4.2088-2100.2004"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1084\/jem.20021911"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1099\/mic.0.029876-0"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.vaccine.2010.06.083"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1086\/656741"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1097\/INF.0b013e3181f59f6d"},{"key":"e_1_3_2_11_2","doi-asserted-by":"publisher","DOI":"10.4049\/jimmunol.177.1.501"},{"key":"e_1_3_2_12_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.ppat.1001027"},{"key":"e_1_3_2_13_2","doi-asserted-by":"publisher","DOI":"10.1128\/mBio.00339-13"},{"key":"e_1_3_2_14_2","doi-asserted-by":"publisher","DOI":"10.1038\/nature07769"},{"key":"e_1_3_2_15_2","doi-asserted-by":"publisher","DOI":"10.4049\/jimmunol.1003470"},{"key":"e_1_3_2_16_2","doi-asserted-by":"publisher","DOI":"10.1128\/IAI.00103-12"},{"key":"e_1_3_2_17_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.ppat.1002981"},{"key":"e_1_3_2_18_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0128185"},{"key":"e_1_3_2_19_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.vaccine.2013.08.099"},{"key":"e_1_3_2_20_2","doi-asserted-by":"publisher","DOI":"10.1086\/597806"},{"key":"e_1_3_2_21_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pntd.0001302"},{"key":"e_1_3_2_22_2","doi-asserted-by":"publisher","DOI":"10.1086\/600141"},{"key":"e_1_3_2_23_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1507829112"},{"key":"e_1_3_2_24_2","doi-asserted-by":"crossref","first-page":"571","DOI":"10.1385\/1-59259-890-0:571","volume-title":"The protein protocols handbook","author":"Gasteiger E","year":"2005","unstructured":"Gasteiger E, Hoogland C, Gattiker A, Duvaud S, Wilkins MR, Appel RD, Bairoch A. 2005. Protein identification and analysis tools on the ExPASy server, p 571\u2013607. In Walker JM (ed), The protein protocols handbook. Humana Press, Totowa, NJ."},{"key":"e_1_3_2_25_2","doi-asserted-by":"publisher","DOI":"10.4049\/jimmunol.172.9.5606"},{"key":"e_1_3_2_26_2","doi-asserted-by":"publisher","DOI":"10.1128\/IAI.00367-08"},{"key":"e_1_3_2_27_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.vaccine.2009.12.027"},{"key":"e_1_3_2_28_2","doi-asserted-by":"publisher","DOI":"10.1128\/IAI.00033-08"},{"key":"e_1_3_2_29_2","doi-asserted-by":"publisher","DOI":"10.1128\/CVI.00103-10"},{"key":"e_1_3_2_30_2","doi-asserted-by":"publisher","DOI":"10.1128\/CVI.00097-06"},{"key":"e_1_3_2_31_2","doi-asserted-by":"publisher","DOI":"10.1093\/infdis\/jiv081"},{"key":"e_1_3_2_32_2","doi-asserted-by":"publisher","DOI":"10.1128\/IAI.00849-10"},{"key":"e_1_3_2_33_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.molimm.2009.02.021"},{"key":"e_1_3_2_34_2","doi-asserted-by":"publisher","DOI":"10.1128\/IAI.01183-13"},{"key":"e_1_3_2_35_2","doi-asserted-by":"publisher","DOI":"10.1128\/CVI.00403-08"},{"key":"e_1_3_2_36_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1222845110"},{"key":"e_1_3_2_37_2","doi-asserted-by":"publisher","DOI":"10.1128\/IAI.00891-10"},{"key":"e_1_3_2_38_2","doi-asserted-by":"publisher","DOI":"10.1128\/CVI.00055-11"},{"key":"e_1_3_2_39_2","doi-asserted-by":"publisher","DOI":"10.1038\/nrmicro2366"},{"key":"e_1_3_2_40_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.vaccine.2008.11.058"},{"key":"e_1_3_2_41_2","doi-asserted-by":"publisher","DOI":"10.1128\/CVI.00517-14"},{"key":"e_1_3_2_42_2","doi-asserted-by":"publisher","DOI":"10.1128\/mBio.01625-14"},{"key":"e_1_3_2_43_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.vaccine.2015.10.135"}],"container-title":["Infection and Immunity"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.asm.org\/doi\/pdf\/10.1128\/IAI.01491-15","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.asm.org\/doi\/pdf\/10.1128\/IAI.01491-15","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,3,5]],"date-time":"2022-03-05T10:15:34Z","timestamp":1646475334000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.asm.org\/doi\/10.1128\/IAI.01491-15"}},"subtitle":[],"editor":[{"given":"L.","family":"Pirofski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"editor"}]}],"short-title":[],"issued":{"date-parts":[[2016,6]]},"references-count":42,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2016,6]]}},"alternative-id":["10.1128\/IAI.01491-15"],"URL":"https:\/\/doi.org\/10.1128\/iai.01491-15","relation":{},"ISSN":["0019-9567","1098-5522"],"issn-type":[{"value":"0019-9567","type":"print"},{"value":"1098-5522","type":"electronic"}],"subject":[],"published":{"date-parts":[[2016,6]]},"assertion":[{"value":"2015-12-07","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2016-03-21","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2016-05-24","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}