Kruppel-like factor 13, also known as KLF13, is a protein that in humans is encoded by the KLF13gene.[1][2][3]
There is some evidence for KLF13 having a role in obesity. A methylation site, cg07814318, within the first intron of KLF13 has been associated with obesity and orexigenic processes.[4]Ghrelin levels also positively correlated with methylation levels of cg07814318.[4] Moreover, expression levels of KLF13 were decreased and increased in the brains of starved and obese mice, respectively.[4]
KLF13 belongs to a family of transcription factors that contain 3 classical zinc finger DNA-binding domains consisting of a zinc atom tetrahedrally coordinated by 2 cysteines and 2 histidines (C2H2 motif). These transcription factors bind to GC-rich sequences and related GT and CACCC boxes.[1][5]
KLF13 was first described as the RANTES factor of late activated T lymphocytes (RFLAT)-1.[3] It regulates the expression of the chemokine RANTES in T lymphocytes. It functions as a lynchpin, inducing a large enhancesome. KLF13 knock-out mice show a defect in lymphocyte survival as KLF13 is a regulator of Bcl-xL expression.[3][6][7][8][9][10][11]
↑Cook T, Gebelein B, Urrutia R (Jun 1999). "Sp1 and its likes: biochemical and functional predictions for a growing family of zinc finger transcription factors". Annals of the New York Academy of Sciences. 880 (1 CELL AND MOLE): 94–102. doi:10.1111/j.1749-6632.1999.tb09513.x. PMID10415854.
↑ 3.03.13.2Song A, Chen YF, Thamatrakoln K, Storm TA, Krensky AM (Jan 1999). "RFLAT-1: a new zinc finger transcription factor that activates RANTES gene expression in T lymphocytes". Immunity. 10 (1): 93–103. doi:10.1016/S1074-7613(00)80010-2. PMID10023774.
↑ 4.04.14.2Wiemerslage L, Islam R, van der Kamp C, Cao H, Olivo G, Ence-Eriksson F, Castillo S, Larsen AL, Bandstein M, Dahlberg LS, Perland E, Gustavsson V, Nilsson J, Vogel H, Schürmann A, Larsson EM, Rask-Andersen M, Benedict C, Schiöth HB (14 Feb 2017). "A DNA methylation site within the KLF13 gene is associated with orexigenic processes based on neural responses and ghrelin levels". Int J Obes (Lond). 43. doi:10.1038/ijo.2017.43. PMID28194012.
↑Scohy S, Gabant P, Van Reeth T, Hertveldt V, Drèze PL, Van Vooren P, Rivière M, Szpirer J, Szpirer C (Nov 2000). "Identification of KLF13 and KLF14 (SP6), novel members of the SP/XKLF transcription factor family". Genomics. 70 (1): 93–101. doi:10.1006/geno.2000.6362. PMID11087666.
↑Song A, Nikolcheva T, Krensky AM (Oct 2000). "Transcriptional regulation of RANTES expression in T lymphocytes". Immunological Reviews. 177 (1): 236–45. doi:10.1034/j.1600-065X.2000.17610.x. PMID11138780.
↑Song A, Patel A, Thamatrakoln K, Liu C, Feng D, Clayberger C, Krensky AM (Aug 2002). "Functional domains and DNA-binding sequences of RFLAT-1/KLF13, a Krüppel-like transcription factor of activated T lymphocytes". The Journal of Biological Chemistry. 277 (33): 30055–65. doi:10.1074/jbc.M204278200. PMID12050170.
Cook T, Gebelein B, Urrutia R (Jun 1999). "Sp1 and its likes: biochemical and functional predictions for a growing family of zinc finger transcription factors". Annals of the New York Academy of Sciences. 880 (1 CELL AND MOLE): 94–102. doi:10.1111/j.1749-6632.1999.tb09513.x. PMID10415854.
Song A, Chen YF, Thamatrakoln K, Storm TA, Krensky AM (Jan 1999). "RFLAT-1: a new zinc finger transcription factor that activates RANTES gene expression in T lymphocytes". Immunity. 10 (1): 93–103. doi:10.1016/S1074-7613(00)80010-2. PMID10023774.
Asano H, Li XS, Stamatoyannopoulos G (Jun 2000). "FKLF-2: a novel Krüppel-like transcriptional factor that activates globin and other erythroid lineage genes". Blood. 95 (11): 3578–84. PMID10828046.
Scohy S, Gabant P, Van Reeth T, Hertveldt V, Drèze PL, Van Vooren P, Rivière M, Szpirer J, Szpirer C (Nov 2000). "Identification of KLF13 and KLF14 (SP6), novel members of the SP/XKLF transcription factor family". Genomics. 70 (1): 93–101. doi:10.1006/geno.2000.6362. PMID11087666.
Kaczynski J, Zhang JS, Ellenrieder V, Conley A, Duenes T, Kester H, van Der Burg B, Urrutia R (Sep 2001). "The Sp1-like protein BTEB3 inhibits transcription via the basic transcription element box by interacting with mSin3A and HDAC-1 co-repressors and competing with Sp1". The Journal of Biological Chemistry. 276 (39): 36749–56. doi:10.1074/jbc.M105831200. PMID11477107.
Song A, Patel A, Thamatrakoln K, Liu C, Feng D, Clayberger C, Krensky AM (Aug 2002). "Functional domains and DNA-binding sequences of RFLAT-1/KLF13, a Krüppel-like transcription factor of activated T lymphocytes". The Journal of Biological Chemistry. 277 (33): 30055–65. doi:10.1074/jbc.M204278200. PMID12050170.