関: CFH、factor H

WordNet

make complete or perfect; supply what is wanting or form the complement to; "I need some pepper to complement the sweet touch in the soup"
a complete number or quantity; "a full complement"
one of a series of enzymes in the blood serum that are part of the immune response
something added to complete or embellish or make perfect; "a fine wine is a perfect complement to the dinner"; "wild rice was served as an accompaniment to the main dish" (同)accompaniment
number needed to make up a whole force; "a full complement of workers" (同)full complement
a word or phrase used to complete a grammatical construction
either of two parts that mutually complete each other
be a contributing factor; "make things factor into a companys profitability"
any of the numbers (or symbols) that form a product when multiplied together
an independent variable in statistics
anything that contributes causally to a result; "a number of factors determined the outcome"
consider as relevant when making a decision; "You must factor in the recent developments" (同)factor in, factor out
resolve into factors; "a quantum computer can factor the number 15" (同)factor in, factor out
an event known to have happened or something known to have existed; "your fears have no basis in fact"; "how much of the story is fact and how much fiction is hard to tell"
a concept whose truth can be proved; "scientific hypotheses are not facts"
a piece of information about circumstances that exist or events that have occurred; "first you must collect all the facts of the case"
a statement or assertion of verified information about something that is the case or has happened; "he supported his argument with an impressive array of facts"
the 8th letter of the Roman alphabet (同)h

PrepTutorEJDIC

(あるものを完全にするため)(…を)補う物(事)《+『of』+『名』》 / 補語(文法で文の成分の一つ) / (必要な)全数,全量;(船の)定員 / …を補足する,補う
(…の)『要因』,(…を生み出す)要素《+『in』+『名』(do『ing』)》 / 囲数,約数 / 代理人,《おもに英》仲買人 / =factorize
〈C〉『事実』,実際にある(あった)事 / 〈U〉真相,真実(truth) / 《the~》(法律用語で)犯行
hydrogenの化学記号
鉛筆の硬度 / 《俗》heroin

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/05/26 12:07:47」(JST)

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[Wiki en表示]

A model based on concatenating the various experimentally determined structures of Factor H fragments and C3b

Factor H is a member of the regulators of complement activation family and is a complement control protein. It is a large (155 kilodaltons), soluble glycoprotein that circulates in human plasma (at typical concentrations of 200–300 micrograms per milliliter^[1]). Its principal function is to regulate the Alternative Pathway of the complement system, ensuring that the complement system is directed towards pathogens or other dangerous material and does not damage host tissue. Factor H regulates complement activation on self cells and surfaces by possessing both cofactor activity for the Factor I mediated C3b cleavage, and decay accelerating activity against the alternative pathway C3-convertase, C3bBb. Factor H exerts its protective action on self cells and self surfaces but not on the surfaces of bacteria or viruses, because it binds to glycosaminoglycans (GAGs) that are generally present on host cells but not, normally, on pathogen surfaces.^[2]^[3]

Structure and function

The molecule is made up of 20 complement control protein (CCP) modules (also referred to as Short Consensus Repeats or sushi domains) connected to one another by short linkers (of between three and eight amino acid residues) and arranged in an extended head to tail fashion. Each of the CCP modules consists of around 60 amino acids with four cysteine residues disulfide bonded in a 1-3 2-4 arrangement, and a hydrophobic core built around an almost invariant tryptophan residue. The CCP modules are numbered from 1-20 (from the N-terminus of the protein); CCPs 1-4 and CCPs 19-20 engage with C3b while CCPs 7 and CCPs 19-20 bind to GAGs and sialic acid.^[4] To date atomic structures have been determined for CCPs 1-3,^[5] CCP 5,^[6] CCP 7 (both 402H & 402Y),^[7] CCPs 10-11 and CCPs 11-12,^[8] CCPs 12-13,^[9] CCP 15, CCP 16,^[10] CCPs 15-16,^[11] CCPs 18-20,^[12] and CCPs 19-20.^[13]^[14] The atomic structure for CCPs 6-8 (402H) bound to the GAG mimic sucrose octasulfate,^[15] CCPs 1-4 in complex with C3b^[16] and CCPs 19-20 in complex with C3d (that corresponds to the thioster domain of C3b)^[17]^[18] have also been determined. Although an atomic resolution structure for intact factor H has not yet been determined, low resolution techniques indicate that it may be bent back in solution.^[19] Information available to date indicates that CCP modules 1-4 is responsible for the cofactor and decay acceleration activities of factor H, whereas self/non-self discrimination occurs predominantly through GAG binding to CCP modules 7 and/or 19-20.^[19]^[20]

Clinical significance

Due to the central role that factor H plays in the regulation of complement, there are a number of clinical implications arising from aberrant factor H activity. Overactive factor H may result in reduced complement activity on pathogenic cells - increasing susceptibility to microbial infections. Underactive factor H may result in increased complement activity on healthy host cells - resulting in autoimmune diseases. It is not surprising therefore that mutations or single nucleotide polymorphisms (SNPs) in factor H often result in pathologies. Moreover the complement inhibitory activities of factor H, and other complement regulators, are often used by pathogens to increase virulence.

Age-related macular degeneration

Recently it was discovered that about 35% of individuals carry an at-risk SNP in one or both copies of their factor H gene. Homozygous individuals have an approximately sevenfold increased chance of developing age-related macular degeneration, while heterozygotes have a two-to-threefold increased likelihood of developing the disease. This SNP, located in CCP module 7 of factor H, has been shown to affect the interaction between factor H and heparin indicating a causal relationship between the SNP and disease.^[7]^[21] Deletion of two adjacent genes with a high degree of homology to complement factor H, named complement factor H-related 3 and complement factor H-related 1, protects against age-related macular degeneration because of reduced competition for binding of CFH to vascular surface binding sites.^[22]^[23]

Schizophrenia

Alterations in the immune response are involved in pathogenesis of many neuropsychiatric disorders including schizophrenia. Recent studies indicated alterations in the complement system, including hyperactivation of the alternative complement pathway in patients with schizophrenia. It was investigated functional single nucleotide polymorphisms (SNPs) of gene encoding factor H (CFH), and found CFH rs424535 (2783-526T >A) SNP was positively associated with schizophrenia, so rs424535*A minor allele of the CFH gene may represent a risk factor for schizophrenia.^[24]

Ischemic stroke

It was found that rs800292(184G >A) SNP was positively associated with stroke and rs800912 minor allele of the CFH gene might be considered as a risk factor for ischemic stroke.^[25]

Atypical haemolytic uraemic syndrome

Haemolytic uraemic syndrome (HUS) is a disease associated with microangiopathic haemolytic anemia, thrombocytopenia and acute renal failure. A rare subset of this disease (referred to as atypical haemolytic uraemic syndrome, aHUS), has been strongly linked to mutations in genes of the complement system (including factor H, factor I and membrane cofactor protein), with the factor H mutations being the most numerous. These factor H mutations tend to congregate towards the C-terminus of factor H—a region responsible for discriminating self from non-self—and have been shown to disrupt heparin (a model compound for glycosaminoglycans) and C3d (equivalent to the thioester domain of C3b) binding.^[26]

Recruitment by pathogens

Given the central role of factor H in protecting cells from complement, it is not surprising that several important human pathogens have evolved mechanisms for recruiting factor H. This recruitment of factor H by pathogens provides significant resistance to complement attack, and therefore increased virulence. Pathogens that have been shown to recruit factor H include: Aspergillus spp.; Borrelia burgdorferi; B. duttonii; B. recurrentis; Candida albicans;^[27] Francisella tularensis; Haemophilus influenzae; Neisseria meningitidis; and Streptococcus pyogenes. The Gram-negative bacterium B.burgdorferi has five Factor H binding proteins: CRASP-1, CRASP-2, CRASP-3, CRASP-4 and CRASP-5.^[28] Each CRASP protein also binds plasminogen.^[28]

Interactions

Factor H has been shown to interact with Complement component 3.^[29]^[30]

Recombinant production

Biologically active Factor H has been produced by Ralf Reski and coworkers in the moss bioreactor,^[31] in a process called molecular farming. Large quantities of biologically active human Factor H, potentially suitable for therapeutic purposes, were produced using a synthetic codon-optimised gene expressed in the yeast expression host, Pichia pastoris.^[32]

References

^ Hakobyan S, Harris CL, Tortajada A, Goicochea de Jorge E, García-Layana A, Fernández-Robredo P, Rodríguez de Córdoba S, Morgan BP (2008). "Measurement of factor H variants in plasma using variant-specific monoclonal antibodies: application to assessing risk of age-related macular degeneration". Invest. Ophthalmol. Vis. Sci. 49 (5): 1983–90. doi:10.1167/iovs.07-1523. PMID 18436830.
^ Pangburn MK (August 2000). "Host recognition and target differentiation by factor H, a regulator of the alternative pathway of complement". Immunopharmacology 49 (1–2): 149–57. doi:10.1016/S0162-3109(00)80300-8. PMID 10904114.
^ Rodríguez de Córdoba S, Esparza-Gordillo J, Goicoechea de Jorge E, Lopez-Trascasa M, Sánchez-Corral P (June 2004). "The human complement factor H: functional roles, genetic variations and disease associations". Mol. Immunol. 41 (4): 355–67. doi:10.1016/j.molimm.2004.02.005. PMID 15163532.
^ Schmidt CQ, Herbert AP, Kavanagh D, Gandy C, Fenton CJ, Blaum BS, Lyon M, Uhrín D, Barlow PN (2008). "A new map of glycosaminoglycan and C3b binding sites on factor H". J. Immunol. 181 (4): 2610–9. doi:10.4049/jimmunol.181.4.2610. PMID 18684951.
^ Hocking HG, Herbert AP, Kavanagh D, Soares DC, Ferreira VP, Pangburn MK, Uhrín D, Barlow PN (April 2008). "Structure of the N-terminal Region of Complement Factor H and Conformational Implications of Disease-linked Sequence Variations". J. Biol. Chem. 283 (14): 9475–87. doi:10.1074/jbc.M709587200. PMC 2276370. PMID 18252712.
^ Barlow PN, Norman DG, Steinkasserer A, Horne TJ, Pearce J, Driscoll PC, Sim RB, Campbell ID. (1992). "Solution structure of the fifth repeat of factor H: a second example of the complement control protein module". Biochemistry. 31 (14): 3626–34. doi:10.1021/bi00129a011. PMID 1533152.
^ ^a ^b Herbert AP, Deakin JA, Schmidt CQ, Blaum BS, Egan C, Ferreira VP, Pangburn MK, Lyon M, Uhrín D, Barlow PN (June 2007). "Structure shows that a glycosaminoglycan and protein recognition site in factor H is perturbed by age-related macular degeneration-linked single nucleotide polymorphism". J. Biol. Chem. 282 (26): 18960–8. doi:10.1074/jbc.M609636200. PMID 17360715.
^ Makou E, Mertens HD, Maciejewski M, Soares DC, Matis I, Schmidt CQ, Herbert AP, Svergun DI, Barlow PN (2012). "Solution structure of CCP modules 10-12 illuminates functional architecture of the complement regulator, factor H". J. Mol. Biol. 424 (5): 295–312. doi:10.1016/j.jmb.2012.09.013. PMID 23017427.
^ Schmidt CQ, Herbert AP, Mertens HD, Guariento M, Soares DC, Uhrin D, Rowe AJ, Svergun DI, Barlow PN. (2010). "The Central Portion of Factor H (Modules 10–15) Is Compact and Contains a Structurally Deviant CCP Module". J Mol Biol. 395 (1): 105–22. doi:10.1016/j.jmb.2009.10.010. PMC 2806952. PMID 19835885.
^ Norman DG, Barlow PN, Baron M, Day AJ, Sim RB, Campbell ID. (1991). "Three-dimensional structure of a complement control protein module in solution". J Mol Biol. 219 (4): 717–25. doi:10.1016/0022-2836(91)90666-T. PMID 1829116.
^ Barlow PN, Steinkasserer A, Norman DG, Kieffer B, Wiles AP, Sim RB, Campbell ID. (1993). "Solution structure of a pair of complement modules by nuclear magnetic resonance". J Mol Biol. 232 (1): 268–84. doi:10.1006/jmbi.1993.1381. PMID 8331663.
^ Morgan HP, Mertens HD, Guariento M, Schmidt CQ, Soares DC, Svergun DI, Herbert AP, Barlow PN, Hannan JP (2012). "Structural analysis of the C-terminal region (modules 18-20) of complement regulator factor H (FH)". PLoS ONE 7 (2): e32187. doi:10.1371/journal.pone.0032187. PMC 3289644. PMID 22389686.
^ Herbert AP, Uhrín D, Lyon M, Pangburn MK, Barlow PN. (March 2006). "Disease-associated sequence variations congregate in a polyanion recognition patch on human factor H revealed in three-dimensional structure". J Biol Chem. 281 (24): 16512–20. doi:10.1074/jbc.M513611200. PMID 16533809.
^ Jokiranta TS, Jaakola VP, Lehtinen MJ, Pärepalo M, Meri S, Goldman A. (April 2006). "Structure of complement factor H carboxyl-terminus reveals molecular basis of atypical haemolytic uremic syndrome". EMBO J. 25 (8): 1784–94. doi:10.1038/sj.emboj.7601052. PMC 1440827. PMID 16601698.
^ Prosser BE, Johnson S, Roversi P, Herbert AP, Blaum BS, Tyrrell J, Jowitt TA, Clark SJ, Tarelli E, Uhrín D, Barlow PN, Sim RB, Day AJ, Lea SM. (September 2007). "Structural basis for complement factor H–linked age-related macular degeneration". J Exp Med. 204 (10): 2277–83. doi:10.1084/jem.20071069. PMC 2118454. PMID 17893204.
^ Wu J, Wu YQ, Ricklin D, Janssen BJ, Lambris JD, Gros P. (2009). "Structure of C3b-factor H and implications for host protection by complement regulators". Nat Immunol. 10 (7): 728–33. doi:10.1038/ni.1755. PMC 2713992. PMID 19503104.
^ Morgan HP, Schmidt CQ, Guariento M, Blaum BS, Gillespie D, Herbert AP, Kavanagh D, Mertens HD, Svergun DI, Johansson CM, Uhrín D, Barlow PN, Hannan JP (2011). "Structural basis for engagement by complement factor H of C3b on a self surface". Nat. Struct. Mol. Biol. 18 (4): 463–70. doi:10.1038/nsmb.2018. PMC 3512577. PMID 21317894.
^ Kajander T, Lehtinen MJ, Hyvärinen S, Bhattacharjee A, Leung E, Isenman DE, Meri S, Goldman A, Jokiranta TS (2011). "Dual interaction of factor H with C3d and glycosaminoglycans in host-nonhost discrimination by complement". Proc. Natl. Acad. Sci. U.S.A. 108 (7): 2897–902. doi:10.1073/pnas.1017087108. PMC 3041134. PMID 21285368.
^ ^a ^b Aslam M, Perkins SJ (June 2001). "Folded-back solution structure of monomeric factor H of human complement by synchrotron X-ray and neutron scattering, analytical ultracentrifugation and constrained molecular modelling". J Mol Biol. 309 (25): 1117–1138. doi:10.1006/jmbi.2001.4720. PMID 11399083.
^ Kirkitadze MD, Barlow PN (April 2001). "Structure and flexibility of the multiple domain proteins that regulate complement activation". Immunol. Rev. 180: 146–61. doi:10.1034/j.1600-065X.2001.1800113.x. PMID 11414356.
^ Hageman GS, Anderson DH, Johnson LV, Hancox LS, Taiber AJ, Hardisty LI, Hageman JL, Stockman HA, Borchardt JD, Gehrs KM, Smith RJ, Silvestri G, Russell SR, Klaver CC, Barbazetto I, Chang S, Yannuzzi LA, Barile GR, Merriam JC, Smith RT, Olsh AK, Bergeron J, Zernant J, Merriam JE, Gold B, Dean M, Allikmets R (May 2005). "A common haplotype in the complement regulatory gene factor H (HF1/CFH) predisposes individuals to age-related macular degeneration". Proc. Natl. Acad. Sci. U.S.A. 102 (20): 7227–32. doi:10.1073/pnas.0501536102. PMC 1088171. PMID 15870199.
^ Hughes AE, Orr N, Esfandiary H, Diaz-Torres M, Goodship T, Chakravarthy U (2006). "A common CFH haplotype, with deletion of CFHR1 and CFHR3, is associated with lower risk of age-related macular degeneration". Nat. Genet. 38 (10): 1173–7. doi:10.1038/ng1890. PMID 16998489.
^ Fritsche LG, Lauer N, Hartmann A, Stippa S, Keilhauer CN, Oppermann M, Pandey MK, Köhl J, Zipfel PF, Weber BH, Skerka C (2010). "An imbalance of human complement regulatory proteins CFHR1, CFHR3 and factor H influences risk for age-related macular degeneration (AMD)". Hum. Mol. Genet. 19 (23): 4694–704. doi:10.1093/hmg/ddq399. PMID 20843825.
^ Boyajyan A, Ghazaryan H, Stepanyan A, Zakharyan R (December 2013). "Genetic polymorphisms of complement factor H in schizophrenia and ischemic stroke". Mol. Immunol. 56 (3): 294. doi:10.1016/j.molimm.2013.05.154.
^ Boyajyan A, Ghazaryan H, Stepanyan A, Zakharyan R (December 2013). "Genetic polymorphisms of complement factor H in schizophrenia and ischemic stroke". Mol. Immunol. 56 (3): 294. doi:10.1016/j.molimm.2013.05.154.
^ Atkinson JP, Goodship TH (June 2007). "Complement factor H and the hemolytic uremic syndrome". J. Exp. Med. 204 (6): 1245–8. doi:10.1084/jem.20070664. PMC 2118604. PMID 17548524.
^ Shanshan Luo, Sophia Poltermann, Anja Kunert, Steffen Rupp, Peter F. Zipfel (2009). "Immune evasion of the human pathogenic yeast Candida albicans: Pra1 is a Factor H, FHL-1 and plasminogen binding surface protein". Molecular Immunology 47 (2–3): 541–550. doi:10.1016/j.molimm.2009.07.017. PMID 19850343.
^ ^a ^b PF Zipfel, T Hallstrom and K Riesbeck (2013). ". Human complement control and complement evasion by pathogenic microbes- Tipping the balance". Mol. Immunol. 56 (3): 152–160. doi:10.1016/j.molimm.2013.05.222.
^ Soames CJ, Sim RB (1997). "Interactions between human complement components factor H, factor I and C3b". Biochem. J. 326 (Pt 2): 553–61. PMC 1218704. PMID 9291131.
^ Jokiranta TS, Westin J, Nilsson UR, Nilsson B, Hellwage J, Löfås S, Gordon DL, Ekdahl KN, Meri S (2001). "Complement C3b interactions studied with surface plasmon resonance technique". Int. Immunopharmacol. 1 (3): 495–506. doi:10.1016/S1567-5769(00)00042-4. PMID 11367533.
^ Büttner-Mainik A, Parsons J, Jérôme H, Hartmann A, Lamer S, Schaaf A, Schlosser A, Zipfel PF, Reski R, Decker EL (2011). "Production of biologically active recombinant human factor H in Physcomitrella". Plant Biotechnol. J. 9 (3): 373–83. doi:10.1111/j.1467-7652.2010.00552.x. PMID 20723134.
^ Schmidt CQ, Slingsby FC, Richards A, Barlow PN (2011). "Production of biologically active complement factor H in therapeutically useful quantities". Protein Expr. Purif. 76 (2): 254–63. doi:10.1016/j.pep.2010.12.002. PMID 21146613.

External links

GeneReviews/NCBI/NIH/UW entry on Atypical Hemolytic-Uremic Syndrome
GeneReviews/NCBI/NIH/UW entry on Dense Deposit Disease/Membranoproliferative Glomerulonephritis Type II
OMIM entries on Atypical Hemolytic-Uremic Syndrome
Complement Factor H at the US National Library of Medicine Medical Subject Headings (MeSH)

UpToDate Contents

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1. 補体介在性溶血性尿毒症症候群 complement mediated hemolytic uremic syndrome
2. C3糸球体腎症：デンスデポジット病およびC3糸球体腎炎 c3 glomerulopathies dense deposit disease and c3 glomerulonephritis
3. Approach to the patient with suspected thrombotic thrombocytopenic purpura (TTP) or other thrombotic microangiopathy (TMA)
4. 膜性増殖性糸球体腎炎の臨床像、分類、および原因 clinical presentation classification and causes of membranoproliferative glomerulonephritis
5. 加齢黄斑変性：臨床像、病因、および診断 age related macular degeneration clinical presentation etiology and diagnosis

English Journal

Oxidative stress-induced premature senescence dysregulates VEGF and CFH expression in retinal pigment epithelial cells: Implications for Age-related Macular Degeneration.

Marazita MC1, Dugour A2, Marquioni-Ramella MD1, Figueroa JM2, Suburo AM3.
Redox biology.Redox Biol.2016 Apr;7:78-87. doi: 10.1016/j.redox.2015.11.011. Epub 2015 Nov 29.
Oxidative stress has a critical role in the pathogenesis of Age-related Macular Degeneration (AMD), a multifactorial disease that includes age, gene variants of complement regulatory proteins and smoking as the main risk factors. Stress-induced premature cellular senescence (SIPS) is postulated to c
PMID 26654980

Carboxiterminal pro-endothelin-1 as an endothelial cell biomarker in thrombotic thrombocytopenic purpura.

Mikes B1, Sinkovits G, Farkas P, Csuka D, Rázsó K, Réti M, Radványi G, Demeter J, Prohászka Z.
Thrombosis and haemostasis.Thromb Haemost.2016 Jan 14;115(5). [Epub ahead of print]
Thrombotic thrombocytopenic purpura (TTP) is characterised by the deficiency of the von Willebrand factor (VWF) cleaving protease (ADAMTS-13). Although several observations indicate an important role of endothelial activation in the pathogenesis of TTP, no reliable endothelial activation markers are
PMID 26763086

Relationship of Circulating C5a and Complement Factor H Levels With Disease Control in Pregnant Women With Asthma.

Bohács A1, Bikov A1, Ivancsó I1, Czaller I1, Böcskei R1, Müller V1, Rigó J Jr2, Losonczy G1, Tamási L3.
Respiratory care.Respir Care.2016 Jan 12. pii: respcare.04339. [Epub ahead of print]
BACKGROUND: Asthma often complicates pregnancy and represents a risk of serious pregnancy complications. The complement system contributes to asthma pathogenesis and is up-regulated in healthy gestation as well. The anaphylatoxin C5a has a major pro-inflammatory role, and the complement factor H is
PMID 26759418

Japanese Journal

Atypical hemolytic uremic syndrome and genetic aberrations in the complement factor H-related 5 gene

WESTRA Dineke,VERNON Katherine A,VOLOKHINA Elena B,PICKERING Matthew C,VAN DE KAR Nicole CAJ,VAN DEN HEUVEL Lambert P
Journal of human genetics 57(7), 459-464, 2012-07-01
NAID 10030965816

C3 Glomerulonephritis Associated with a Missense Mutation in the Factor H Gene

SUGIMOTO Keisuke,FUJITA Shinsuke,MIYAZAKI Kouhei,OKADA Mitsuru,TAKEMURA Tsukasa
Tohoku journal of experimental medicine 227(3), 211-215, 2012-07-01
NAID 10030943914

「補体H因子」

Complement factor H
Available structures
PDB	Ortholog search: PDBe, RCSB
List of PDB id codes
	1FHC, 1HAQ, 1HCC, 1HFH, 1HFI, 1KOV, 2BZM, 2G7I, 2IC4, 2JGW, 2JGX, 2KMS, 2QFG, 2QFH, 2RLP, 2RLQ, 2UWN, 2V8E, 2W80, 2W81, 2WII, 2XQW, 3GAU, 3GAV, 3GAW, 3KXV, 3KZJ, 3OXU, 3R62, 3RJ3, 3SW0, 4AYD, 4AYE, 4AYI, 4AYM, 4B2R, 4B2S, 4J38, 4K12
Identifiers
Symbols	CFH ; AHUS1; AMBP1; ARMD4; ARMS1; CFHL3; FH; FHL1; HF; HF1; HF2; HUS
External IDs	OMIM: 134370 MGI: 88385 HomoloGene: 20086 ChEMBL: 4629 GeneCards: CFH Gene
EC number	4.2.1.2
Gene ontology
Molecular function	• protein binding; • heparin binding; • heparan sulfate proteoglycan binding;
Cellular component	• extracellular region; • extracellular space; • blood microparticle;
Biological process	• complement activation; • complement activation, alternative pathway; • regulation of complement activation; • innate immune response;
	Sources: Amigo / QuickGO
RNA expression pattern
	More reference expression data
Orthologs
	This box: view; talk; edit;

　　[★]

英: complement factor H、factor H、CFH
関: H因子、補体因子H

「CFH」

　　[★]

補体H因子

関: complement factor H、factor H

「補体因子H」

　　[★]

英: complement factor H
関: 補体H因子

「human complement factor H」

　　[★]

ヒト補体因子H、ヒト補体H因子

関: human factor H

「factor H」

　　[★]

関: complement-regulatory protein

血漿蛋白
作用：CR1と同様に、factor Bと競合的にC3bに結合し、BbをC3bから遠ざける。factor Iのcofactorとして作用する。(IMM.71)

「complement」

　　[★]

n.

補って完全にする物、補完物。(免疫)補体
(必要な)全数、善良

vt.

補って完全にする。補完する。～の補足となる。

「fact」

　　[★]

n.

事実、現状、実際、実態

関: actual、actually、in fact、in practice、indeed、practically

「factor」

　　[★]

n.

因子、要因、要素、ファクター

関: element、elementary、factorial、parameter

「H」

　　[★]

[Hakobyan-2008-1] Hakobyan S, Harris CL, Tortajada A, Goicochea de Jorge E, García-Layana A, Fernández-Robredo P, Rodríguez de Córdoba S, Morgan BP (2008). "Measurement of factor H variants in plasma using variant-specific monoclonal antibodies: application to assessing risk of age-related macular degeneration". Invest. Ophthalmol. Vis. Sci. 49 (5): 1983–90. doi:10.1167/iovs.07-1523. PMID 18436830.

[pmid10904114-2] Pangburn MK (August 2000). "Host recognition and target differentiation by factor H, a regulator of the alternative pathway of complement". Immunopharmacology 49 (1–2): 149–57. doi:10.1016/S0162-3109(00)80300-8. PMID 10904114.

[pmid15163532-3] Rodríguez de Córdoba S, Esparza-Gordillo J, Goicoechea de Jorge E, Lopez-Trascasa M, Sánchez-Corral P (June 2004). "The human complement factor H: functional roles, genetic variations and disease associations". Mol. Immunol. 41 (4): 355–67. doi:10.1016/j.molimm.2004.02.005. PMID 15163532.

[Schmidt-2008-4] Schmidt CQ, Herbert AP, Kavanagh D, Gandy C, Fenton CJ, Blaum BS, Lyon M, Uhrín D, Barlow PN (2008). "A new map of glycosaminoglycan and C3b binding sites on factor H". J. Immunol. 181 (4): 2610–9. doi:10.4049/jimmunol.181.4.2610. PMID 18684951.

[pmid18252712-5] Hocking HG, Herbert AP, Kavanagh D, Soares DC, Ferreira VP, Pangburn MK, Uhrín D, Barlow PN (April 2008). "Structure of the N-terminal Region of Complement Factor H and Conformational Implications of Disease-linked Sequence Variations". J. Biol. Chem. 283 (14): 9475–87. doi:10.1074/jbc.M709587200. PMC 2276370. PMID 18252712.

[pmid1533152-6] Barlow PN, Norman DG, Steinkasserer A, Horne TJ, Pearce J, Driscoll PC, Sim RB, Campbell ID. (1992). "Solution structure of the fifth repeat of factor H: a second example of the complement control protein module". Biochemistry. 31 (14): 3626–34. doi:10.1021/bi00129a011. PMID 1533152.

[pmid17360715-7] Herbert AP, Deakin JA, Schmidt CQ, Blaum BS, Egan C, Ferreira VP, Pangburn MK, Lyon M, Uhrín D, Barlow PN (June 2007). "Structure shows that a glycosaminoglycan and protein recognition site in factor H is perturbed by age-related macular degeneration-linked single nucleotide polymorphism". J. Biol. Chem. 282 (26): 18960–8. doi:10.1074/jbc.M609636200. PMID 17360715.

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リンク元	「補体H因子」「CFH」「補体因子H」
拡張検索	「human complement factor H」
関連記事	「factor H」「complement」「fact」「factor」「H」

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complement factor H