Abstract
We have identified a serum-responsive, cardiac tissue-specific transcription factor, BBF-1, that recognizes an AT-rich sequence (element B), identical to the myocyte enhancer factor (MEF-2) target site, in the cardiac myosin light chain-2 (MLC-2) promoter. Deletion of the element B sequence alone from the cardiac MLC-2 promoter causes, as does that of the MEF-2 site from other promoters and the enhancer of skeletal muscle genes, a marked reduction of transcription. BBF-1 is distinguishable from cardiac MEF-2 on the basis of immunoprecipitation with an antibody which recognizes MEF-2 but not BBF-1. Unlike MEF-2, BBF-1 is present exclusively in nuclear extracts from cardiac muscle cells cultured in a medium containing a high concentration of serum. Removal of serum from culture medium abolishes BBF-1 activity selectively with a concomitant loss of the positive regulatory effect of element B on MLC-2 gene transcription, indicating that there is a correlation between the BBF-1 binding activity and the tissue-specific role of the element B (MEF-2 site) sequence. The loss of element B-mediated activation of transcription is reversed following the refeeding of cells with serum-containing medium. These data demonstrate that cardiac muscle cells contain two distinct protein factors, MEF-2 and BBF-1, which bind to the same target site but that, unlike MEF-2, BBF-1 is serum inducible and cardiac tissue specific. BBF-1 thus appears to be a crucial member of the MEF-2 family of proteins which will serve as an important tool in understanding the regulatory mechanism(s) underlying cardiogenic differentiation.
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- Borrás T., Peterson C. A., Piatigorsky J. Evidence for positive and negative regulation in the promoter of the chicken delta 1-crystallin gene. Dev Biol. 1988 May;127(1):209–219. doi: 10.1016/0012-1606(88)90202-3. [DOI] [PubMed] [Google Scholar]
- Boxer L. M., Prywes R., Roeder R. G., Kedes L. The sarcomeric actin CArG-binding factor is indistinguishable from the c-fos serum response factor. Mol Cell Biol. 1989 Feb;9(2):515–522. doi: 10.1128/mcb.9.2.515. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Braun T., Bober E., Winter B., Rosenthal N., Arnold H. H. Myf-6, a new member of the human gene family of myogenic determination factors: evidence for a gene cluster on chromosome 12. EMBO J. 1990 Mar;9(3):821–831. doi: 10.1002/j.1460-2075.1990.tb08179.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Braun T., Buschhausen-Denker G., Bober E., Tannich E., Arnold H. H. A novel human muscle factor related to but distinct from MyoD1 induces myogenic conversion in 10T1/2 fibroblasts. EMBO J. 1989 Mar;8(3):701–709. doi: 10.1002/j.1460-2075.1989.tb03429.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Braun T., Tannich E., Buschhausen-Denker G., Arnold H. H. Promoter upstream elements of the chicken cardiac myosin light-chain 2-A gene interact with trans-acting regulatory factors for muscle-specific transcription. Mol Cell Biol. 1989 Jun;9(6):2513–2525. doi: 10.1128/mcb.9.6.2513. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Buskin J. N., Hauschka S. D. Identification of a myocyte nuclear factor that binds to the muscle-specific enhancer of the mouse muscle creatine kinase gene. Mol Cell Biol. 1989 Jun;9(6):2627–2640. doi: 10.1128/mcb.9.6.2627. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Clegg C. H., Linkhart T. A., Olwin B. B., Hauschka S. D. Growth factor control of skeletal muscle differentiation: commitment to terminal differentiation occurs in G1 phase and is repressed by fibroblast growth factor. J Cell Biol. 1987 Aug;105(2):949–956. doi: 10.1083/jcb.105.2.949. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Cserjesi P., Olson E. N. Myogenin induces the myocyte-specific enhancer binding factor MEF-2 independently of other muscle-specific gene products. Mol Cell Biol. 1991 Oct;11(10):4854–4862. doi: 10.1128/mcb.11.10.4854. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Davis R. L., Weintraub H., Lassar A. B. Expression of a single transfected cDNA converts fibroblasts to myoblasts. Cell. 1987 Dec 24;51(6):987–1000. doi: 10.1016/0092-8674(87)90585-x. [DOI] [PubMed] [Google Scholar]
- Dignam J. D., Lebovitz R. M., Roeder R. G. Accurate transcription initiation by RNA polymerase II in a soluble extract from isolated mammalian nuclei. Nucleic Acids Res. 1983 Mar 11;11(5):1475–1489. doi: 10.1093/nar/11.5.1475. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Edmondson D. G., Olson E. N. A gene with homology to the myc similarity region of MyoD1 is expressed during myogenesis and is sufficient to activate the muscle differentiation program. Genes Dev. 1989 May;3(5):628–640. doi: 10.1101/gad.3.5.628. [DOI] [PubMed] [Google Scholar]
- Eghbali M., Tomek R., Woods C., Bhambi B. Cardiac fibroblasts are predisposed to convert into myocyte phenotype: specific effect of transforming growth factor beta. Proc Natl Acad Sci U S A. 1991 Feb 1;88(3):795–799. doi: 10.1073/pnas.88.3.795. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Flink I. L., Morkin E. Interaction of thyroid hormone receptors with strong and weak cis-acting elements in the human alpha-myosin heavy chain gene promoter. J Biol Chem. 1990 Jul 5;265(19):11233–11237. [PubMed] [Google Scholar]
- Gorman C. M., Moffat L. F., Howard B. H. Recombinant genomes which express chloramphenicol acetyltransferase in mammalian cells. Mol Cell Biol. 1982 Sep;2(9):1044–1051. doi: 10.1128/mcb.2.9.1044. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gossett L. A., Kelvin D. J., Sternberg E. A., Olson E. N. A new myocyte-specific enhancer-binding factor that recognizes a conserved element associated with multiple muscle-specific genes. Mol Cell Biol. 1989 Nov;9(11):5022–5033. doi: 10.1128/mcb.9.11.5022. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gupta M. P., Gupta M., Zak R., Sukhatme V. P. Egr-1, a serum-inducible zinc finger protein, regulates transcription of the rat cardiac alpha-myosin heavy chain gene. J Biol Chem. 1991 Jul 15;266(20):12813–12816. [PubMed] [Google Scholar]
- Gustafson T. A., Kedes L. Identification of multiple proteins that interact with functional regions of the human cardiac alpha-actin promoter. Mol Cell Biol. 1989 Aug;9(8):3269–3283. doi: 10.1128/mcb.9.8.3269. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Horlick R. A., Benfield P. A. The upstream muscle-specific enhancer of the rat muscle creatine kinase gene is composed of multiple elements. Mol Cell Biol. 1989 Jun;9(6):2396–2413. doi: 10.1128/mcb.9.6.2396. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Horlick R. A., Hobson G. M., Patterson J. H., Mitchell M. T., Benfield P. A. Brain and muscle creatine kinase genes contain common TA-rich recognition protein-binding regulatory elements. Mol Cell Biol. 1990 Sep;10(9):4826–4836. doi: 10.1128/mcb.10.9.4826. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Iannello R. C., Mar J. H., Ordahl C. P. Characterization of a promoter element required for transcription in myocardial cells. J Biol Chem. 1991 Feb 15;266(5):3309–3316. [PubMed] [Google Scholar]
- Izumo S., Mahdavi V. Thyroid hormone receptor alpha isoforms generated by alternative splicing differentially activate myosin HC gene transcription. Nature. 1988 Aug 11;334(6182):539–542. doi: 10.1038/334539a0. [DOI] [PubMed] [Google Scholar]
- Kelvin D. J., Simard G., Tai H. H., Yamaguchi T. P., Connolly J. A. Growth factors, signaling pathways, and the regulation of proliferation and differentiation in BC3H1 muscle cells. I. A pertussis toxin-sensitive pathway is involved. J Cell Biol. 1989 Jan;108(1):159–167. doi: 10.1083/jcb.108.1.159. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lassar A. B., Buskin J. N., Lockshon D., Davis R. L., Apone S., Hauschka S. D., Weintraub H. MyoD is a sequence-specific DNA binding protein requiring a region of myc homology to bind to the muscle creatine kinase enhancer. Cell. 1989 Sep 8;58(5):823–831. doi: 10.1016/0092-8674(89)90935-5. [DOI] [PubMed] [Google Scholar]
- Lee T. C., Chow K. L., Fang P., Schwartz R. J. Activation of skeletal alpha-actin gene transcription: the cooperative formation of serum response factor-binding complexes over positive cis-acting promoter serum response elements displaces a negative-acting nuclear factor enriched in replicating myoblasts and nonmyogenic cells. Mol Cell Biol. 1991 Oct;11(10):5090–5100. doi: 10.1128/mcb.11.10.5090. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lompré A. M., Nadal-Ginard B., Mahdavi V. Expression of the cardiac ventricular alpha- and beta-myosin heavy chain genes is developmentally and hormonally regulated. J Biol Chem. 1984 May 25;259(10):6437–6446. [PubMed] [Google Scholar]
- Miner J. H., Wold B. Herculin, a fourth member of the MyoD family of myogenic regulatory genes. Proc Natl Acad Sci U S A. 1990 Feb;87(3):1089–1093. doi: 10.1073/pnas.87.3.1089. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Minty A., Kedes L. Upstream regions of the human cardiac actin gene that modulate its transcription in muscle cells: presence of an evolutionarily conserved repeated motif. Mol Cell Biol. 1986 Jun;6(6):2125–2136. doi: 10.1128/mcb.6.6.2125. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Miwa T., Kedes L. Duplicated CArG box domains have positive and mutually dependent regulatory roles in expression of the human alpha-cardiac actin gene. Mol Cell Biol. 1987 Aug;7(8):2803–2813. doi: 10.1128/mcb.7.8.2803. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Muscat G. E., Gustafson T. A., Kedes L. A common factor regulates skeletal and cardiac alpha-actin gene transcription in muscle. Mol Cell Biol. 1988 Oct;8(10):4120–4133. doi: 10.1128/mcb.8.10.4120. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Nakatsuji Y., Hidaka K., Tsujino S., Yamamoto Y., Mukai T., Yanagihara T., Kishimoto T., Sakoda S. A single MEF-2 site is a major positive regulatory element required for transcription of the muscle-specific subunit of the human phosphoglycerate mutase gene in skeletal and cardiac muscle cells. Mol Cell Biol. 1992 Oct;12(10):4384–4390. doi: 10.1128/mcb.12.10.4384. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Navankasattusas S., Zhu H., Garcia A. V., Evans S. M., Chien K. R. A ubiquitous factor (HF-1a) and a distinct muscle factor (HF-1b/MEF-2) form an E-box-independent pathway for cardiac muscle gene expression. Mol Cell Biol. 1992 Apr;12(4):1469–1479. doi: 10.1128/mcb.12.4.1469. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Olson E. N. MyoD family: a paradigm for development? Genes Dev. 1990 Sep;4(9):1454–1461. doi: 10.1101/gad.4.9.1454. [DOI] [PubMed] [Google Scholar]
- Olson E. N., Sternberg E., Hu J. S., Spizz G., Wilcox C. Regulation of myogenic differentiation by type beta transforming growth factor. J Cell Biol. 1986 Nov;103(5):1799–1805. doi: 10.1083/jcb.103.5.1799. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pollock R., Treisman R. Human SRF-related proteins: DNA-binding properties and potential regulatory targets. Genes Dev. 1991 Dec;5(12A):2327–2341. doi: 10.1101/gad.5.12a.2327. [DOI] [PubMed] [Google Scholar]
- Prywes R., Dutta A., Cromlish J. A., Roeder R. G. Phosphorylation of serum response factor, a factor that binds to the serum response element of the c-FOS enhancer. Proc Natl Acad Sci U S A. 1988 Oct;85(19):7206–7210. doi: 10.1073/pnas.85.19.7206. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Qasba P., Lin E., Zhou M. D., Kumar A., Siddiqui M. A. A single transcription factor binds to two divergent sequence elements with a common function in cardiac myosin light chain-2 promoter. Mol Cell Biol. 1992 Mar;12(3):1107–1116. doi: 10.1128/mcb.12.3.1107. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rosenthal N. Muscle cell differentiation. Curr Opin Cell Biol. 1989 Dec;1(6):1094–1101. doi: 10.1016/s0955-0674(89)80056-0. [DOI] [PubMed] [Google Scholar]
- Shen R. A., Goswami S. K., Mascareno E., Kumar A., Siddiqui M. A. Tissue-specific transcription of the cardiac myosin light-chain 2 gene is regulated by an upstream repressor element. Mol Cell Biol. 1991 Mar;11(3):1676–1685. doi: 10.1128/mcb.11.3.1676. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Spizz G., Hu J. S., Olson E. N. Inhibition of myogenic differentiation by fibroblast growth factor or type beta transforming growth factor does not require persistent c-myc expression. Dev Biol. 1987 Oct;123(2):500–507. doi: 10.1016/0012-1606(87)90408-8. [DOI] [PubMed] [Google Scholar]
- Spizz G., Roman D., Strauss A., Olson E. N. Serum and fibroblast growth factor inhibit myogenic differentiation through a mechanism dependent on protein synthesis and independent of cell proliferation. J Biol Chem. 1986 Jul 15;261(20):9483–9488. [PubMed] [Google Scholar]
- Treisman R. Identification of a protein-binding site that mediates transcriptional response of the c-fos gene to serum factors. Cell. 1986 Aug 15;46(4):567–574. doi: 10.1016/0092-8674(86)90882-2. [DOI] [PubMed] [Google Scholar]
- Ueno H., Perryman M. B., Roberts R., Schneider M. D. Differentiation of cardiac myocytes after mitogen withdrawal exhibits three sequential states of the ventricular growth response. J Cell Biol. 1988 Nov;107(5):1911–1918. doi: 10.1083/jcb.107.5.1911. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Uetsuki T., Nabeshima Y., Fujisawa-Sehara A., Nabeshima Y. Regulation of the chicken embryonic myosin light-chain (L23) gene: existence of a common regulatory element shared by myosin alkali light-chain genes. Mol Cell Biol. 1990 Jun;10(6):2562–2569. doi: 10.1128/mcb.10.6.2562. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Waspe L. E., Ordahl C. P., Simpson P. C. The cardiac beta-myosin heavy chain isogene is induced selectively in alpha 1-adrenergic receptor-stimulated hypertrophy of cultured rat heart myocytes. J Clin Invest. 1990 Apr;85(4):1206–1214. doi: 10.1172/JCI114554. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wright W. E., Sassoon D. A., Lin V. K. Myogenin, a factor regulating myogenesis, has a domain homologous to MyoD. Cell. 1989 Feb 24;56(4):607–617. doi: 10.1016/0092-8674(89)90583-7. [DOI] [PubMed] [Google Scholar]
- Yu Y. T., Breitbart R. E., Smoot L. B., Lee Y., Mahdavi V., Nadal-Ginard B. Human myocyte-specific enhancer factor 2 comprises a group of tissue-restricted MADS box transcription factors. Genes Dev. 1992 Sep;6(9):1783–1798. doi: 10.1101/gad.6.9.1783. [DOI] [PubMed] [Google Scholar]
- Zarraga A. M., Danishefsky K., Deshpande A., Nicholson D., Mendola C., Siddiqui M. A. Characterization of 5'-flanking region of heart myosin light chain 2A gene. Structural and functional evidence for promoter activity. J Biol Chem. 1986 Oct 15;261(29):13852–13860. [PubMed] [Google Scholar]
- Zhou M. D., Wu Y., Kumar A., Siddiqui M. A. Mechanism of tissue-specific transcription: interplay between positive and negative regulatory factors. Gene Expr. 1992;2(2):127–138. [PMC free article] [PubMed] [Google Scholar]
- Zhu H., Garcia A. V., Ross R. S., Evans S. M., Chien K. R. A conserved 28-base-pair element (HF-1) in the rat cardiac myosin light-chain-2 gene confers cardiac-specific and alpha-adrenergic-inducible expression in cultured neonatal rat myocardial cells. Mol Cell Biol. 1991 Apr;11(4):2273–2281. doi: 10.1128/mcb.11.4.2273. [DOI] [PMC free article] [PubMed] [Google Scholar]