Monofunctional C1-tetrahydrofolate synthase, mitochondrial also known as formyltetrahydrofolate synthetase , is an enzyme that in humans is encoded by the MTHFD1L gene (methylenetetrahydrofolate dehydrogenase (NADP+ dependent) 1-like).[1] [2] [3]
Function One-carbon substituted forms of tetrahydrofolate (THF) are involved in the de novo synthesis of purines and thymidylate and support cellular methylation reactions through the regeneration of methionine from homocysteine . MTHFD1L is an enzyme involved in THF synthesis in mitochondria .[3]
In contrast to MTHFD1 that has trifunctional methylenetetrahydrofolate dehydrogenase , methenyltetrahydrofolate cyclohydrolase , and formyltetrahydrofolate synthetase enzymatic activities, MTHFD1L only has formyltetrahydrofolate synthetase activity.[4]
Clinical significance Certain variants of the MTHFD1L are associated neural tube defects .[5]
Model organisms Model organisms have been used in the study of MTHFD1L function. A conditional knockout mouse line, called Mthfd1ltm1a(EUCOMM)Wtsi [10] [11] International Knockout Mouse Consortium program — a high-throughput mutagenesis project to generate and distribute animal models of disease to interested scientists.[12] [13] [14]
Male and female animals underwent a standardized phenotypic screen to determine the effects of deletion.[8] [15] mutant mice and two significant abnormalities were observed.[8] homozygous mutant embryos identified during gestation had exencephaly . None survived until weaning . The remaining tests were carried out on heterozygous mutant adult mice and no further abnormalities were observed.[8]
References
↑ Prasannan P, Pike S, Peng K, Shane B, Appling DR (October 2003). "Human mitochondrial C1-tetrahydrofolate synthase: gene structure, tissue distribution of the mRNA, and immunolocalization in Chinese hamster ovary calls" . J. Biol. Chem . 278 (44): 43178–87. doi :10.1074/jbc.M304319200 . PMC 1457088 PMID 12937168 . ↑ Christensen KE, Mackenzie RE (2008). "Mitochondrial methylenetetrahydrofolate dehydrogenase, methenyltetrahydrofolate cyclohydrolase, and formyltetrahydrofolate synthetases". Vitam. Horm . 79 : 393–410. doi :10.1016/S0083-6729(08)00414-7 . PMID 18804703 . ↑ 3.0 3.1 "Entrez Gene: methylenetetrahydrofolate dehydrogenase (NADP+ dependent) 1-like" .↑ Christensen KE, Patel H, Kuzmanov U, Mejia NR, MacKenzie RE (March 2005). "Disruption of the mthfd1 gene reveals a monofunctional 10-formyltetrahydrofolate synthetase in mammalian mitochondria". J. Biol. Chem . 280 (9): 7597–602. doi :10.1074/jbc.M409380200 . PMID 15611115 . ↑ Parle-McDermott A, Pangilinan F, O'Brien KK, Mills JL, Magee AM, Troendle J, Sutton M, Scott JM, Kirke PN, Molloy AM, Brody LC (December 2009). "A common variant in MTHFD1L is associated with neural tube defects and mRNA splicing efficiency" . Hum. Mutat . 30 (12): 1650–6. doi :10.1002/humu.21109 . PMC 2787683 PMID 19777576 . ↑ "Salmonella infection data for Mthfd1l" . Wellcome Trust Sanger Institute.↑ "Citrobacter infection data for Mthfd1l" . Wellcome Trust Sanger Institute.↑ 8.0 8.1 8.2 8.3 Gerdin AK (2010). "The Sanger Mouse Genetics Programme: High throughput characterisation of knockout mice". Acta Ophthalmologica . 88 : 925–7. doi :10.1111/j.1755-3768.2010.4142.x . ↑ Mouse Resources Portal , Wellcome Trust Sanger Institute.↑ "International Knockout Mouse Consortium" .↑ "Mouse Genome Informatics" .↑ Skarnes, W. C.; Rosen, B.; West, A. P.; Koutsourakis, M.; Bushell, W.; Iyer, V.; Mujica, A. O.; Thomas, M.; Harrow, J.; Cox, T.; Jackson, D.; Severin, J.; Biggs, P.; Fu, J.; Nefedov, M.; De Jong, P. J.; Stewart, A. F.; Bradley, A. (2011). "A conditional knockout resource for the genome-wide study of mouse gene function" . Nature . 474 (7351): 337–342. doi :10.1038/nature10163 . PMC 3572410 PMID 21677750 . ↑ Dolgin E (2011). "Mouse library set to be knockout". Nature . 474 (7351): 262–3. doi :10.1038/474262a . PMID 21677718 . ↑ Collins FS, Rossant J, Wurst W (2007). "A Mouse for All Reasons". Cell . 128 (1): 9–13. doi :10.1016/j.cell.2006.12.018 . PMID 17218247 . ↑ van der Weyden L, White JK, Adams DJ, Logan DW (2011). "The mouse genetics toolkit: revealing function and mechanism" . Genome Biol . 12 (6): 224. doi :10.1186/gb-2011-12-6-224 . PMC 3218837 PMID 21722353 .
Further reading
McKnight AJ, Maxwell AP, Fogarty DG, et al. (2009). "Genetic analysis of coronary artery disease single-nucleotide polymorphisms in diabetic nephropathy". Nephrol. Dial. Transplant . 24 (8): 2473–6. doi :10.1093/ndt/gfp015 . PMID 19336575 . Bressler J, Folsom AR, Couper DJ, et al. (2010). "Genetic variants identified in a European genome-wide association study that were found to predict incident coronary heart disease in the atherosclerosis risk in communities study" . Am. J. Epidemiol . 171 (1): 14–23. doi :10.1093/aje/kwp377 . PMC 2800304 PMID 19955471 . Sugiura T, Nagano Y, Inoue T, Hirotani K (2004). "A novel mitochondrial C1-tetrahydrofolate synthetase is upregulated in human colon adenocarcinoma". Biochem. Biophys. Res. Commun . 315 (1): 204–11. doi :10.1016/j.bbrc.2004.01.035 . PMID 15013446 . Samani NJ, Erdmann J, Hall AS, et al. (2007). "Genomewide association analysis of coronary artery disease" . N. Engl. J. Med . 357 (5): 443–53. doi :10.1056/NEJMoa072366 . PMC 2719290 PMID 17634449 . Parle-McDermott A, Pangilinan F, O'Brien KK, et al. (2009). "A common variant in MTHFD1L is associated with neural tube defects and mRNA splicing efficiency" . Hum. Mutat . 30 (12): 1650–6. doi :10.1002/humu.21109 . PMC 2787683 PMID 19777576 . Pridgeon JW, Webber EA, Sha D, et al. (2009). "Proteomic analysis reveals Hrs ubiquitin-interacting motif-mediated ubiquitin signaling in multiple cellular processes" . FEBS J . 276 (1): 118–31. doi :10.1111/j.1742-4658.2008.06760.x . PMC 2647816 PMID 19019082 . Strausberg RL, Feingold EA, Grouse LH, et al. (2002). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences" . Proc. Natl. Acad. Sci. U.S.A . 99 (26): 16899–903. doi :10.1073/pnas.242603899 . PMC 139241 PMID 12477932 . Walkup AS, Appling DR (2005). "Enzymatic characterization of human mitochondrial C1-tetrahydrofolate synthase". Arch. Biochem. Biophys . 442 (2): 196–205. doi :10.1016/j.abb.2005.08.007 . PMID 16171773 . Fountoulakis M, Gulesserian T, Lubec G (2003). "Overexpression of C1-tetrahydrofolate synthase in fetal Down syndrome brain". J. Neural Transm. Suppl. (67): 85–93. doi :10.1007/978-3-7091-6721-2_7 . PMID 15068241 . Sowa ME, Bennett EJ, Gygi SP, Harper JW (2009). "Defining the human deubiquitinating enzyme interaction landscape" . Cell . 138 (2): 389–403. doi :10.1016/j.cell.2009.04.042 . PMC 2716422 PMID 19615732 . Vieira AR, McHenry TG, Daack-Hirsch S, et al. (2008). "Candidate gene/loci studies in cleft lip/palate and dental anomalies finds novel susceptibility genes for clefts" . Genet. Med . 10 (9): 668–74. doi :10.1097/GIM.0b013e3181833793 . PMC 2734954 PMID 18978678 . Ewing RM, Chu P, Elisma F, et al. (2007). "Large-scale mapping of human protein-protein interactions by mass spectrometry" . Mol. Syst. Biol . 3 (1): 89. doi :10.1038/msb4100134 . PMC 1847948 PMID 17353931 .
This article incorporates text from the United States National Library of Medicine , which is in the public domain .
6.1 : Carbon-Oxygen6.2 : Carbon-Sulfur6.3 : Carbon-Nitrogen
Activity Regulation Classification Kinetics Types