| Structural highlights
4ibl is a 3 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
| | Ligands: | , , , , , , , |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Disease
FA7_HUMAN Defects in F7 are the cause of factor VII deficiency (FA7D) [MIM:227500. A hemorrhagic disease with variable presentation. The clinical picture can be very severe, with the early occurrence of intracerebral hemorrhages or repeated hemarthroses, or, in contrast, moderate with cutaneous-mucosal hemorrhages (epistaxis, menorrhagia) or hemorrhages provoked by a surgical intervention. Finally, numerous subjects are completely asymptomatic despite very low factor VII levels.[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24]
Function
FA7_HUMAN Initiates the extrinsic pathway of blood coagulation. Serine protease that circulates in the blood in a zymogen form. Factor VII is converted to factor VIIa by factor Xa, factor XIIa, factor IXa, or thrombin by minor proteolysis. In the presence of tissue factor and calcium ions, factor VIIa then converts factor X to factor Xa by limited proteolysis. Factor VIIa will also convert factor IX to factor IXa in the presence of tissue factor and calcium.
Publication Abstract from PubMed
Coagulation factor VIIa (FVIIa) consists of a gamma-carboxyglutamic acid (GLA) domain, two epidermal growth factor-like (EGF) domains and a protease domain. FVIIa binds three Mg(2+) ions and four Ca(2+) ions in the GLA domain, one Ca(2+) ion in the EGF1 domain and one Ca(2+) ion in the protease domain. Further, FVIIa contains an Na(+) site in the protease domain. Since Na(+) and water share the same number of electrons, Na(+) sites in proteins are difficult to distinguish from waters in X-ray structures. Here, to verify the Na(+) site in FVIIa, the structure of the FVIIa-soluble tissue factor (TF) complex was solved at 1.8 A resolution containing Mg(2+), Ca(2+) and Rb(+) ions. In this structure, Rb(+) replaced two Ca(2+) sites in the GLA domain and occupied three non-metal sites in the protease domain. However, Rb(+) was not detected at the expected Na(+) site. In kinetic experiments, Na(+) increased the amidolytic activity of FVIIa towards the synthetic substrate S-2288 (H-D-Ile-Pro-Arg-p-nitroanilide) by approximately 20-fold; however, in the presence of Ca(2+), Na(+) had a negligible effect. Ca(2+) increased the hydrolytic activity of FVIIa towards S-2288 by approximately 60-fold in the absence of Na(+) and by approximately 82-fold in the presence of Na(+). In molecular-dynamics simulations, Na(+) stabilized the two Na(+)-binding loops (the 184-loop and 220-loop) and the TF-binding region spanning residues 163-180. Ca(2+) stabilized the Ca(2+)-binding loop (the 70-loop) and Na(+)-binding loops but not the TF-binding region. Na(+) and Ca(2+) together stabilized both the Na(+)-binding and Ca(2+)-binding loops and the TF-binding region. Previously, Rb(+) has been used to define the Na(+) site in thrombin; however, it was unsuccessful in detecting the Na(+) site in FVIIa. A conceivable explanation for this observation is provided.
Structure of human factor VIIa-soluble tissue factor with calcium, magnesium and rubidium.,Vadivel K, Schmidt AE, Cascio D, Padmanabhan K, Krishnaswamy S, Brandstetter H, Bajaj SP Acta Crystallogr D Struct Biol. 2021 Jun 1;77(Pt 6):809-819. doi:, 10.1107/S2059798321003922. Epub 2021 May 14. PMID:34076594[25]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Bernardi F, Liney DL, Patracchini P, Gemmati D, Legnani C, Arcieri P, Pinotti M, Redaelli R, Ballerini G, Pemberton S, et al.. Molecular defects in CRM+ factor VII deficiencies: modelling of missense mutations in the catalytic domain of FVII. Br J Haematol. 1994 Mar;86(3):610-8. PMID:8043443
- ↑ O'Brien DP, Gale KM, Anderson JS, McVey JH, Miller GJ, Meade TW, Tuddenham EG. Purification and characterization of factor VII 304-Gln: a variant molecule with reduced activity isolated from a clinically unaffected male. Blood. 1991 Jul 1;78(1):132-40. PMID:2070047
- ↑ Marchetti G, Patracchini P, Gemmati D, DeRosa V, Pinotti M, Rodorigo G, Casonato A, Girolami A, Bernardi F. Detection of two missense mutations and characterization of a repeat polymorphism in the factor VII gene (F7). Hum Genet. 1992 Jul;89(5):497-502. PMID:1634227
- ↑ Marchetti G, Ferrati M, Patracchini P, Redaelli R, Bernardi F. A missense mutation (178Cys-->Tyr) and two neutral dimorphisms (115His and 333Ser) in the human coagulation factor VII gene. Hum Mol Genet. 1993 Jul;2(7):1055-6. PMID:8364544
- ↑ Chaing S, Clarke B, Sridhara S, Chu K, Friedman P, VanDusen W, Roberts HR, Blajchman M, Monroe DM, High KA. Severe factor VII deficiency caused by mutations abolishing the cleavage site for activation and altering binding to tissue factor. Blood. 1994 Jun 15;83(12):3524-35. PMID:8204879
- ↑ Bernardi F, Castaman G, Redaelli R, Pinotti M, Lunghi B, Rodeghiero F, Marchetti G. Topologically equivalent mutations causing dysfunctional coagulation factors VII (294Ala-->Val) and X (334Ser-->Pro). Hum Mol Genet. 1994 Jul;3(7):1175-7. PMID:7981691
- ↑ Ohiwa M, Hayashi T, Wada H, Minamikawa K, Shirakawa S, Suzuki K. Factor VII Mie: homozygous asymptomatic type I deficiency caused by an amino acid substitution of His (CAC) for Arg(247) (CGC) in the catalytic domain. Thromb Haemost. 1994 Jun;71(6):773-7. PMID:7974346
- ↑ Arbini AA, Mannucci M, Bauer KA. A Thr359Met mutation in factor VII of a patient with a hereditary deficiency causes defective secretion of the molecule. Blood. 1996 Jun 15;87(12):5085-94. PMID:8652821
- ↑ Bernardi F, Castaman G, Pinotti M, Ferraresi P, Di Iasio MG, Lunghi B, Rodeghiero F, Marchetti G. Mutation pattern in clinically asymptomatic coagulation factor VII deficiency. Hum Mutat. 1996;8(2):108-15. PMID:8844208 doi:<108::AID-HUMU2>3.0.CO;2-7 10.1002/(SICI)1098-1004(1996)8:2<108::AID-HUMU2>3.0.CO;2-7
- ↑ Bharadwaj D, Iino M, Kontoyianni M, Smith KJ, Foster DC, Kisiel W. Factor VII central. A novel mutation in the catalytic domain that reduces tissue factor binding, impairs activation by factor Xa, and abolishes amidolytic and coagulant activity. J Biol Chem. 1996 Nov 29;271(48):30685-91. PMID:8940045
- ↑ Tamary H, Fromovich Y, Shalmon L, Reich Z, Dym O, Lanir N, Brenner B, Paz M, Luder AS, Blau O, Korostishevsky M, Zaizov R, Seligsohn U. Ala244Val is a common, probably ancient mutation causing factor VII deficiency in Moroccan and Iranian Jews. Thromb Haemost. 1996 Sep;76(3):283-91. PMID:8883260
- ↑ Leonard BJ, Chen Q, Blajchman MA, Ofosu FA, Sridhara S, Yang D, Clarke BJ. Factor VII deficiency caused by a structural variant N57D of the first epidermal growth factor domain. Blood. 1998 Jan 1;91(1):142-8. PMID:9414278
- ↑ Ozawa T, Takikawa Y, Niiya K, Ejiri N, Suzuki K, Sato S, Sakuragawa N. Factor VII Morioka (FVII L-26P): a homozygous missense mutation in the signal sequence identified in a patient with factor VII deficiency. Br J Haematol. 1998 Apr;101(1):47-9. PMID:9576180
- ↑ Alshinawi C, Scerri C, Galdies R, Aquilina A, Felice AE. Two new missense mutations (P134T and A244V) in the coagulation factor VII gene. Hum Mutat. 1998;Suppl 1:S189-91. PMID:9452082
- ↑ Au WY, Lam CC, Chan EC, Kwong YL. Two novel factor VII gene mutations in a Chinese family with factor VII deficiency. Br J Haematol. 2000 Oct;111(1):143-5. PMID:11091194
- ↑ Millar DS, Kemball-Cook G, McVey JH, Tuddenham EG, Mumford AD, Attock GB, Reverter JC, Lanir N, Parapia LA, Reynaud J, Meili E, von Felton A, Martinowitz U, Prangnell DR, Krawczak M, Cooper DN. Molecular analysis of the genotype-phenotype relationship in factor VII deficiency. Hum Genet. 2000 Oct;107(4):327-42. PMID:11129332
- ↑ Wulff K, Herrmann FH. Twenty two novel mutations of the factor VII gene in factor VII deficiency. Hum Mutat. 2000;15(6):489-96. PMID:10862079 doi:<489::AID-HUMU1>3.0.CO;2-J 10.1002/1098-1004(200006)15:6<489::AID-HUMU1>3.0.CO;2-J
- ↑ Nagaizumi K, Inaba H, Suzuki T, Hatta Y, Hagiwara T, Amano K, Arai M, Fukutake K. Two double heterozygous mutations in the F7 gene show different manifestations. Br J Haematol. 2002 Dec;119(4):1052-8. PMID:12472587
- ↑ Takamiya O, Hino K. A patient homozygous for a Gly354Cys mutation in factor VII that results in severely impaired secretion of the molecule, but not complete deficiency. Br J Haematol. 2004 Feb;124(3):336-42. PMID:14717781
- ↑ Mota L, Shetty S, Idicula-Thomas S, Ghosh K. Phenotypic and genotypic characterization of Factor VII deficiency patients from Western India. Clin Chim Acta. 2009 Nov;409(1-2):106-11. doi: 10.1016/j.cca.2009.09.007. Epub, 2009 Sep 13. PMID:19751712 doi:10.1016/j.cca.2009.09.007
- ↑ Herrmann FH, Wulff K, Auerswald G, Schulman S, Astermark J, Batorova A, Kreuz W, Pollmann H, Ruiz-Saez A, De Bosch N, Salazar-Sanchez L. Factor VII deficiency: clinical manifestation of 717 subjects from Europe and Latin America with mutations in the factor 7 gene. Haemophilia. 2009 Jan;15(1):267-80. doi: 10.1111/j.1365-2516.2008.01910.x. Epub, 2008 Oct 30. PMID:18976247 doi:10.1111/j.1365-2516.2008.01910.x
- ↑ Landau D, Rosenberg N, Zivelin A, Staretz-Chacham O, Kapelushnik J. Familial factor VII deficiency with foetal and neonatal fatal cerebral haemorrhage associated with homozygosis to Gly180Arg mutation. Haemophilia. 2009 May;15(3):774-8. doi: 10.1111/j.1365-2516.2009.02004.x. PMID:19432927 doi:10.1111/j.1365-2516.2009.02004.x
- ↑ Kwon MJ, Yoo KY, Lee KO, Kim SH, Kim HJ. Recurrent mutations and genotype-phenotype correlations in hereditary factor VII deficiency in Korea. Blood Coagul Fibrinolysis. 2011 Mar;22(2):102-5. doi:, 10.1097/MBC.0b013e328343641a. PMID:21206266 doi:10.1097/MBC.0b013e328343641a
- ↑ Jiang M, Wang Z, Yu Z, Bai X, Su J, Cao L, Zhang W, Ruan C. A novel missense mutation close to the charge-stabilizing system in a patient with congenital factor VII deficiency. Blood Coagul Fibrinolysis. 2011 Jun;22(4):264-70. doi:, 10.1097/MBC.0b013e3283447388. PMID:21372693 doi:10.1097/MBC.0b013e3283447388
- ↑ Vadivel K, Schmidt AE, Cascio D, Padmanabhan K, Krishnaswamy S, Brandstetter H, Bajaj SP. Structure of human factor VIIa-soluble tissue factor with calcium, magnesium and rubidium. Acta Crystallogr D Struct Biol. 2021 Jun 1;77(Pt 6):809-819. doi:, 10.1107/S2059798321003922. Epub 2021 May 14. PMID:34076594 doi:http://dx.doi.org/10.1107/S2059798321003922
|
