RFX1
| RFX1 | |||
|---|---|---|---|
Gene ontology | |||
| Molecular function |
| ||
| Cellular component | |||
| Biological process | |||
| Sources:Amigo / QuickGO | |||
Ensembl | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| UniProt | |||||||||
| RefSeq (mRNA) | |||||||||
| RefSeq (protein) | |||||||||
| Location (UCSC) | Chr 19: 13.96 – 14.01 Mb | Chr 8: 84.79 – 84.82 Mb | |||||||
| PubMed search | [3] | [4] | |||||||
| View/Edit Human | View/Edit Mouse |
MHC class II regulatory factor RFX1 is a protein that, in humans, is encoded by the RFX1 gene located on the short arm of chromosome 19.[5][6][7]
Structure
The RFX1 gene is a member of the regulatory factor X (RFX) gene family, which encodes
Species distribution
The RFX protein family is conserved in S. pombe, S. cerevisiae, C. elegans, mice and humans.[9] There are seven known RFX proteins in humans, five in mice, and one in C. elegans as well as one in each of the two species of yeast.[9][10]
Function
The protein encoded by this gene is structurally related to regulatory factors X2, X3, X4, and X5. It is a transcriptional activator that can bind DNA as a monomer or as a heterodimer with RFX family members X2, X3, and X5, but not with X4. This protein binds to the Xboxes of MHC class II genes and is essential for their expression. Also, it can bind to an inverted repeat that is required for expression of hepatitis B virus genes.[7] The RFX proteins were originally cloned and characterized due to their high affinity for a cis-acting promoter sequence, called the Xbox, found in all MHC class II genes.[6]
Levels of mRNA encoding this protein as well as RFX2 and RFX3 are found to be consistently elevated in the
RFX1 contains a C-terminal sequence with no apparent homology to other RFX proteins. This C-terminal tail contains an acidic region that is thought to aid in crossing the nuclear membrane. Two major functions are hypothesized to this exist for this domain: a contribution to the
Interactions
RFX1 has been shown to
References
- ^ a b c ENSG00000288283 GRCh38: Ensembl release 89: ENSG00000132005, ENSG00000288283 – Ensembl, May 2017
- ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000031706 – Ensembl, May 2017
- ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
- ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
- PMID 1505960.
- ^ PMID 8289803.
- ^ a b "Entrez Gene: RFX1 regulatory factor X, 1 (influences HLA class II expression)".
- PMID 8600444.
- ^ PMID 9583676.
- PMID 18673564.
- PMID 11358531.
Further reading
- Herrero Sanchez C, Reith W, Silacci P, Mach B (1992). "The DNA-binding defect observed in major histocompatibility complex class II regulatory mutants concerns only one member of a family of complexes binding to the X boxes of class II promoters". Mol. Cell. Biol. 12 (9): 4076–83. PMID 1508204.
- Reith W, Herrero-Sanchez C, Kobr M, et al. (1991). "MHC class II regulatory factor RFX has a novel DNA-binding domain and a functionally independent dimerization domain". Genes Dev. 4 (9): 1528–40. PMID 2253877.
- Sáfrány G, Perry RP (1993). "Transcription factor RFX1 helps control the promoter of the mouse ribosomal protein-encoding gene rpL30 by binding to its alpha element". Gene. 132 (2): 279–83. PMID 8224874.
- Siegrist CA, Durand B, Emery P, et al. (1993). "RFX1 is identical to enhancer factor C and functions as a transactivator of the hepatitis B virus enhancer". Mol. Cell. Biol. 13 (10): 6375–84. PMID 8413236.
- Emery P, Durand B, Mach B, Reith W (1996). "RFX proteins, a novel family of DNA binding proteins conserved in the eukaryotic kingdom". Nucleic Acids Res. 24 (5): 803–7. PMID 8600444.
- Doyle J, Hoffman S, Ucla C, et al. (1996). "Locations of human and mouse genes encoding the RFX1 and RFX2 transcription factor proteins". Genomics. 35 (1): 227–30. PMID 8661125.
- Katan-Khaykovich Y, Shaul Y (1998). "RFX1, a single DNA-binding protein with a split dimerization domain, generates alternative complexes". J. Biol. Chem. 273 (38): 24504–12. PMID 9733744.
- Iwama A, Pan J, Zhang P, et al. (1999). "Dimeric RFX proteins contribute to the activity and lineage specificity of the interleukin-5 receptor alpha promoter through activation and repression domains". Mol. Cell. Biol. 19 (6): 3940–50. PMID 10330134.
- Zajac-Kaye M, Ben-Baruch N, Kastanos E, et al. (2000). "Induction of Myc-intron-binding polypeptides MIBP1 and RFX1 during retinoic acid-mediated differentiation of haemopoietic cells". Biochem. J. 345. 345 (3): 535–41. PMID 10642512.
- Morotomi-Yano K, Yano K, Saito H, et al. (2002). "Human regulatory factor X 4 (RFX4) is a testis-specific dimeric DNA-binding protein that cooperates with other human RFX members". J. Biol. Chem. 277 (1): 836–42. PMID 11682486.
- Sengupta PK, Fargo J, Smith BD (2002). "The RFX family interacts at the collagen (COL1A2) start site and represses transcription". J. Biol. Chem. 277 (28): 24926–37. PMID 11986307.
- Nakayama A, Murakami H, Maeyama N, et al. (2003). "Role for RFX transcription factors in non-neuronal cell-specific inactivation of the microtubule-associated protein MAP1A promoter". J. Biol. Chem. 278 (1): 233–40. PMID 12411430.
- Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "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. PMID 12477932.
- Norquay LD, Yang X, Sheppard P, et al. (2003). "RFX1 and NF-1 associate with P sequences of the human growth hormone locus in pituitary chromatin". Mol. Endocrinol. 17 (6): 1027–38. PMID 12624117.
- Maijgren S, Sur I, Nilsson M, Toftgård R (2004). "Involvement of RFX proteins in transcriptional activation from a Ras-responsive enhancer element". Arch. Dermatol. Res. 295 (11): 482–9. S2CID 2408607.
- Beausoleil SA, Jedrychowski M, Schwartz D, et al. (2004). "Large-scale characterization of HeLa cell nuclear phosphoproteins". Proc. Natl. Acad. Sci. U.S.A. 101 (33): 12130–5. PMID 15302935.
External links
- RFX1+protein,+human at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
This article incorporates text from the United States National Library of Medicine, which is in the public domain.
PDB gallery | |
|---|---|
|
