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MAX (gene)

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MYC associated factor X

PDB rendering based on 1an2.
Identifiers
Symbols MAX; MGC10775; MGC11225; MGC18164; MGC34679; MGC36767; bHLHd4; bHLHd5; bHLHd6; bHLHd7; bHLHd8; orf1
External IDs OMIM154950 MGI96921 HomoloGene1786 GeneCards: MAX Gene
RNA expression pattern
PBB GE MAX 214108 at tn.png
PBB GE MAX 208403 x at tn.png
PBB GE MAX 209331 s at tn.png
More reference expression data
Orthologs
Species Human Mouse
Entrez 4149 17187
Ensembl ENSG00000125952 ENSMUSG00000059436
UniProt P61244 P28574
RefSeq (mRNA) NM_002382.3 NM_008558
RefSeq (protein) NP_002373.3 NP_032584
Location (UCSC) Chr 14:
65.47 – 65.57 Mb
Chr 12:
78.04 – 78.06 Mb
PubMed search [1] [2]

Protein max also known as myc-associated factor X is a protein that in humans is encoded by the MAX gene.[1][2]

Contents

[edit] Function

Protein max is a member of the basic helix-loop-helix leucine zipper (bHLHZ) family of transcription factors. It is able to form homodimers and heterodimers with other family members, which include Mad, Mxl1 and Myc. Myc is an oncoprotein implicated in cell proliferation, differentiation and apoptosis. The homodimers and heterodimers compete for a common DNA target site (the E-box) and rearrangement among these dimer forms provides a complex system of transcriptional regulation. Multiple alternatively spliced transcript variants have been described for this gene but the full-length nature for some of them is unknown.[2]

Max binds to itself and to other transcription factors through its leucine zipper to form homo- and hetero-dimers respectively. Max itself lacks a transactivation domain so that Max homodimers have a repressive function. In contrast, Myc contains a transactivation domain but cannot homodimerize. However Myc can heterodimerize with Max to form heterodimers that can both bind DNA and transactivate. The transcriptionally active Max/Myc dimer promotes cell proliferation as well as apoptosis.[3]

[edit] Interactions

MAX (gene) has been shown to interact with MSH2,[4] MXD1,[5][6][7][8] MXI1,[9][10][7][11][12] SPAG9,[5] N-Myc,[13][12] MYCL1,[13][12] Myc,[14][15][16][17][4][13][5][10][7][11][8][12][18] Transformation/transcription domain-associated protein,[15][16] MNT[11] and TEAD1.[19]

[edit] References

  1. ^ Wagner AJ, Le Beau MM, Diaz MO, Hay N (May 1992). "Expression, regulation, and chromosomal localization of the Max gene". Proc Natl Acad Sci U S A 89 (7): 3111–5. doi:10.1073/pnas.89.7.3111. PMC 48814. PMID 1557420. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=48814. 
  2. ^ a b "Entrez Gene: MAX MYC associated factor X". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=4149. 
  3. ^ Amati B, Land H (February 1994). "Myc-Max-Mad: a transcription factor network controlling cell cycle progression, differentiation and death". Curr. Opin. Genet. Dev. 4 (1): 102–8. doi:10.1016/0959-437X(94)90098-1. PMID 8193530. 
  4. ^ a b Mac Partlin, Mary; Homer Elizabeth, Robinson Helen, McCormick Carol J, Crouch Dorothy H, Durant Stephen T, Matheson Elizabeth C, Hall Andrew G, Gillespie David A F, Brown Robert (Feb. 2003). "Interactions of the DNA mismatch repair proteins MLH1 and MSH2 with c-MYC and MAX". Oncogene (England) 22 (6): 819–25. doi:10.1038/sj.onc.1206252. ISSN 0950-9232. PMID 12584560. 
  5. ^ a b c Lee, Clement M; Onésime Djamila, Reddy C Damodara, Dhanasekaran N, Reddy E Premkumar (Oct. 2002). "JLP: A scaffolding protein that tethers JNK/p38MAPK signaling modules and transcription factors". Proc. Natl. Acad. Sci. U.S.A. (United States) 99 (22): 14189–94. doi:10.1073/pnas.232310199. ISSN 0027-8424. PMC 137859. PMID 12391307. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=137859. 
  6. ^ Ayer, D E; Kretzner L, Eisenman R N (Jan. 1993). "Mad: a heterodimeric partner for Max that antagonizes Myc transcriptional activity". Cell (UNITED STATES) 72 (2): 211–22. doi:10.1016/0092-8674(93)90661-9. ISSN 0092-8674. PMID 8425218. 
  7. ^ a b c Gupta, K; Anand G, Yin X, Grove L, Prochownik E V (Mar. 1998). "Mmip1: a novel leucine zipper protein that reverses the suppressive effects of Mad family members on c-myc". Oncogene (ENGLAND) 16 (9): 1149–59. doi:10.1038/sj.onc.1201634. ISSN 0950-9232. PMID 9528857. 
  8. ^ a b Nair, Satish K; Burley Stephen K (Jan. 2003). "X-ray structures of Myc-Max and Mad-Max recognizing DNA. Molecular bases of regulation by proto-oncogenic transcription factors". Cell (United States) 112 (2): 193–205. doi:10.1016/S0092-8674(02)01284-9. ISSN 0092-8674. PMID 12553908. 
  9. ^ Rual, Jean-François; Venkatesan Kavitha, Hao Tong, Hirozane-Kishikawa Tomoko, Dricot Amélie, Li Ning, Berriz Gabriel F, Gibbons Francis D, Dreze Matija, Ayivi-Guedehoussou Nono, Klitgord Niels, Simon Christophe, Boxem Mike, Milstein Stuart, Rosenberg Jennifer, Goldberg Debra S, Zhang Lan V, Wong Sharyl L, Franklin Giovanni, Li Siming, Albala Joanna S, Lim Janghoo, Fraughton Carlene, Llamosas Estelle, Cevik Sebiha, Bex Camille, Lamesch Philippe, Sikorski Robert S, Vandenhaute Jean, Zoghbi Huda Y, Smolyar Alex, Bosak Stephanie, Sequerra Reynaldo, Doucette-Stamm Lynn, Cusick Michael E, Hill David E, Roth Frederick P, Vidal Marc (Oct. 2005). "Towards a proteome-scale map of the human protein-protein interaction network". Nature (England) 437 (7062): 1173–8. doi:10.1038/nature04209. PMID 16189514. 
  10. ^ a b Billin, A N; Eilers A L, Queva C, Ayer D E (Dec. 1999). "Mlx, a novel Max-like BHLHZip protein that interacts with the Max network of transcription factors". J. Biol. Chem. (UNITED STATES) 274 (51): 36344–50. doi:10.1074/jbc.274.51.36344. ISSN 0021-9258. PMID 10593926. 
  11. ^ a b c Meroni, G; Reymond A, Alcalay M, Borsani G, Tanigami A, Tonlorenzi R, Lo Nigro C, Messali S, Zollo M, Ledbetter D H, Brent R, Ballabio A, Carrozzo R (May. 1997). "Rox, a novel bHLHZip protein expressed in quiescent cells that heterodimerizes with Max, binds a non-canonical E box and acts as a transcriptional repressor". EMBO J. (ENGLAND) 16 (10): 2892–906. doi:10.1093/emboj/16.10.2892. ISSN 0261-4189. PMC 1169897. PMID 9184233. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1169897. 
  12. ^ a b c d FitzGerald, M J; Arsura M, Bellas R E, Yang W, Wu M, Chin L, Mann K K, DePinho R A, Sonenshein G E (Apr. 1999). "Differential effects of the widely expressed dMax splice variant of Max on E-box vs initiator element-mediated regulation by c-Myc". Oncogene (ENGLAND) 18 (15): 2489–98. doi:10.1038/sj.onc.1202611. ISSN 0950-9232. PMID 10229200. 
  13. ^ a b c Blackwood, E M; Eisenman R N (Mar. 1991). "Max: a helix-loop-helix zipper protein that forms a sequence-specific DNA-binding complex with Myc". Science (UNITED STATES) 251 (4998): 1211–7. doi:10.1126/science.2006410. ISSN 0036-8075. PMID 2006410. 
  14. ^ Ewing, Rob M; Chu Peter, Elisma Fred, Li Hongyan, Taylor Paul, Climie Shane, McBroom-Cerajewski Linda, Robinson Mark D, O'Connor Liam, Li Michael, Taylor Rod, Dharsee Moyez, Ho Yuen, Heilbut Adrian, Moore Lynda, Zhang Shudong, Ornatsky Olga, Bukhman Yury V, Ethier Martin, Sheng Yinglun, Vasilescu Julian, Abu-Farha Mohamed, Lambert Jean-Philippe, Duewel Henry S, Stewart Ian I, Kuehl Bonnie, Hogue Kelly, Colwill Karen, Gladwish Katharine, Muskat Brenda, Kinach Robert, Adams Sally-Lin, Moran Michael F, Morin Gregg B, Topaloglou Thodoros, Figeys Daniel (2007). "Large-scale mapping of human protein-protein interactions by mass spectrometry". Mol. Syst. Biol. (England) 3 (1): 89. doi:10.1038/msb4100134. PMC 1847948. PMID 17353931. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1847948. 
  15. ^ a b McMahon, S B; Wood M A, Cole M D (Jan. 2000). "The essential cofactor TRRAP recruits the histone acetyltransferase hGCN5 to c-Myc". Mol. Cell. Biol. (UNITED STATES) 20 (2): 556–62. doi:10.1128/MCB.20.2.556-562.2000. ISSN 0270-7306. PMC 85131. PMID 10611234. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=85131. 
  16. ^ a b McMahon, S B; Van Buskirk H A, Dugan K A, Copeland T D, Cole M D (Aug. 1998). "The novel ATM-related protein TRRAP is an essential cofactor for the c-Myc and E2F oncoproteins". Cell (UNITED STATES) 94 (3): 363–74. doi:10.1016/S0092-8674(00)81479-8. ISSN 0092-8674. PMID 9708738. 
  17. ^ Cheng, S W; Davies K P, Yung E, Beltran R J, Yu J, Kalpana G V (May. 1999). "c-MYC interacts with INI1/hSNF5 and requires the SWI/SNF complex for transactivation function". Nat. Genet. (UNITED STATES) 22 (1): 102–5. doi:10.1038/8811. ISSN 1061-4036. PMID 10319872. 
  18. ^ Meroni, G; Cairo S, Merla G, Messali S, Brent R, Ballabio A, Reymond A (Jul. 2000). "Mlx, a new Max-like bHLHZip family member: the center stage of a novel transcription factors regulatory pathway?". Oncogene (ENGLAND) 19 (29): 3266–77. doi:10.1038/sj.onc.1203634. ISSN 0950-9232. PMID 10918583. 
  19. ^ Gupta, M P; Amin C S, Gupta M, Hay N, Zak R (Jul. 1997). "Transcription enhancer factor 1 interacts with a basic helix-loop-helix zipper protein, Max, for positive regulation of cardiac alpha-myosin heavy-chain gene expression". Mol. Cell. Biol. (UNITED STATES) 17 (7): 3924–36. ISSN 0270-7306. PMC 232245. PMID 9199327. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=232245. 

[edit] Further reading

[edit] External links

This article incorporates text from the United States National Library of Medicine, which is in the public domain.

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