CDX2

From Wikipedia, the free encyclopedia


Caudal type homeobox transcription factor 2
Identifiers
Symbol(s) CDX2; CDX-3; CDX3
External IDs OMIM: 600297 MGI: 88361 HomoloGene: 968
RNA expression pattern

More reference expression data
Orthologs
Human Mouse
Entrez 1045 12591
Ensembl ENSG00000165556 ENSMUSG00000029646
Uniprot Q99626 Q543L9
Refseq NM_001265 (mRNA)
NP_001256 (protein)		 NM_007673 (mRNA)
NP_031699 (protein)
Location Chr 13: 27.43 - 27.44 Mb Chr 5: 147.61 - 147.62 Mb
Pubmed search [1] [2]

Caudal type homeobox transcription factor 2, also known as CDX2, is a human gene.


Cdx2 is the gene that directs early embryogenesis in mice. It is required to form the placenta. This gene (or, more specifically, the equivalent gene in humans) has come up in the proposal by the President's Council on Bioethics, as a solution to the stem cell controversy. According to one of the plans put forth, by deactivating the gene, it would not be possible for a properly organized embryo to form, thus providing stem cells without requiring the destruction of an embryo.

Other genes that have been proposed for this purpose include Hnf4, which is required for gastrulation.

CDX2 is also used in diagnostic surgical pathology as a marker for gastrointestinal differentiation, especially colorectal.

[edit] Further reading

  • German MS, Wang J, Fernald AA, et al. (1995). "Localization of the genes encoding two transcription factors, LMX1 and CDX3, regulating insulin gene expression to human chromosomes 1 and 13.". Genomics 24 (2): 403–4. doi:10.1006/geno.1994.1639. PMID 7698771. 
  • Suh E, Chen L, Taylor J, Traber PG (1994). "A homeodomain protein related to caudal regulates intestine-specific gene transcription.". Mol. Cell. Biol. 14 (11): 7340–51. PMID 7935448. 
  • Inoue H, Riggs AC, Tanizawa Y, et al. (1996). "Isolation, characterization, and chromosomal mapping of the human insulin promoter factor 1 (IPF-1) gene.". Diabetes 45 (6): 789–94. PMID 8635654. 
  • Mallo GV, Rechreche H, Frigerio JM, et al. (1997). "Molecular cloning, sequencing and expression of the mRNA encoding human Cdx1 and Cdx2 homeobox. Down-regulation of Cdx1 and Cdx2 mRNA expression during colorectal carcinogenesis.". Int. J. Cancer 74 (1): 35–44. PMID 9036867. 
  • Chawengsaksophak K, James R, Hammond VE, et al. (1997). "Homeosis and intestinal tumours in Cdx2 mutant mice.". Nature 386 (6620): 84–7. doi:10.1038/386084a0. PMID 9052785. 
  • Walters JR, Howard A, Rumble HE, et al. (1997). "Differences in expression of homeobox transcription factors in proximal and distal human small intestine.". Gastroenterology 113 (2): 472–7. PMID 9247466. 
  • Drummond F, Putt W, Fox M, Edwards YH (1998). "Cloning and chromosome assignment of the human CDX2 gene.". Ann. Hum. Genet. 61 (Pt 5): 393–400. doi:10.1046/j.1469-1809.1997.6150393.x. PMID 9459001. 
  • Yamamoto H, Miyamoto K, Li B, et al. (1999). "The caudal-related homeodomain protein Cdx-2 regulates vitamin D receptor gene expression in the small intestine.". J. Bone Miner. Res. 14 (2): 240–7. PMID 9933478. 
  • Lorentz O, Suh ER, Taylor JK, et al. (1999). "CREB-binding [corrected] protein interacts with the homeodomain protein Cdx2 and enhances transcriptional activity.". J. Biol. Chem. 274 (11): 7196–9. PMID 10066780. 
  • Hussain MA, Habener JF (1999). "Glucagon gene transcription activation mediated by synergistic interactions of pax-6 and cdx-2 with the p300 co-activator.". J. Biol. Chem. 274 (41): 28950–7. PMID 10506141. 
  • Mitchelmore C, Troelsen JT, Spodsberg N, et al. (2000). "Interaction between the homeodomain proteins Cdx2 and HNF1alpha mediates expression of the lactase-phlorizin hydrolase gene.". Biochem. J. 346 Pt 2: 529–35. PMID 10677375. 
  • Sivagnanasundaram S, Islam I, Talbot I, et al. (2001). "The homeobox gene CDX2 in colorectal carcinoma: a genetic analysis.". Br. J. Cancer 84 (2): 218–25. doi:10.1054/bjoc.2000.1544. PMID 11161380. 
  • Rings EH, Boudreau F, Taylor JK, et al. (2001). "Phosphorylation of the serine 60 residue within the Cdx2 activation domain mediates its transactivation capacity.". Gastroenterology 121 (6): 1437–50. PMID 11729123. 
  • Hinoi T, Tani M, Lucas PC, et al. (2001). "Loss of CDX2 expression and microsatellite instability are prominent features of large cell minimally differentiated carcinomas of the colon.". Am. J. Pathol. 159 (6): 2239–48. PMID 11733373. 
  • Mizoshita T, Inada K, Tsukamoto T, et al. (2002). "Expression of Cdx1 and Cdx2 mRNAs and relevance of this expression to differentiation in human gastrointestinal mucosa--with special emphasis on participation in intestinal metaplasia of the human stomach.". Gastric Cancer 4 (4): 185–91. PMID 11846061. 
  • Eda A, Osawa H, Yanaka I, et al. (2002). "Expression of homeobox gene CDX2 precedes that of CDX1 during the progression of intestinal metaplasia.". J. Gastroenterol. 37 (2): 94–100. PMID 11871772. 
  • Qualtrough D, Hinoi T, Fearon E, Paraskeva C (2002). "Expression of CDX2 in normal and neoplastic human colon tissue and during differentiation of an in vitro model system.". Gut 51 (2): 184–90. PMID 12117877. 
  • Moucadel V, Totaro MS, Dell CD, et al. (2002). "The homeobox gene Cdx1 belongs to the p53-p21(WAF)-Bcl-2 network in intestinal epithelial cells.". Biochem. Biophys. Res. Commun. 297 (3): 607–15. PMID 12270138. 
  • 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. doi:10.1073/pnas.242603899. PMID 12477932. 
  • Song BL, Qi W, Wang CH, et al. (2003). "Preparation of an anti-Cdx-2 antibody for analysis of different species Cdx-2 binding to acat2 promoter.". Sheng Wu Hua Xue Yu Sheng Wu Wu Li Xue Bao 35 (1): 6–12. PMID 12518221. 

[edit] External links

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v • d • e
Transcription factors and intracellular receptors
(1) Basic domains
(1.1) Basic leucine zipper (bZIP)
Activating transcription factor (AATF, 1, 2, 3, 4, 5, 6, 7) • AP-1 (c-Fos, FOSB, FOSL1, FOSL2, c-Jun, JUNB, JUND) • BACH (1, 2) • BATF • BLZF1 • C/EBP (α, β, γ, δ, ε, ζ) • CREB (1, 3, L1) • CREM • DBP • DDIT3 • GABPA • HLF • MAF (B, F, G, K) • NFE (2, L1, L2) • NRL • NRF1 • XBP1
(1.2) Basic helix-loop-helix (bHLH)
ATOH1 • AhR • AHRR • ARNT • ASCL1 • BHLHB2 • BMAL (ARNTL, ARNTL2) • CLOCK • EPAS1 • HAND (1, 2) • HES (5, 6) • HEY (1, 2, L) • HES1 • HIF (1A, 3A) • ID (1, 2, 3, 4) • LYL1 • MXD4 • MYCL1 • MYCN • Myogenic regulatory factors (MyoD, Myogenin, MYF5, MYF6) • Neurogenins • NeuroD (1, 2) • NPAS (1, 2, 3) • OLIG (1, 2) • Scleraxis • TAL1 • Twist • USF1
(1.3) bHLH-ZIP
MAX • MITF • MNT • MLX • MXI1 • Myc • SREBP (1, 2)
(1.6) Basic helix-span-helix (bHSH)
(2) Zinc finger
DNA-binding domains
(2.1) Nuclear receptor (Cys4)
subfamily 1 (Thyroid hormone (α, β), CAR, FXR, LXR (α, β), PPAR (α, β/δ, γ), PXR, RAR (α, β, γ), ROR (α, β, γ), Rev-ErbA (α, β), VDR) • subfamily 2 (COUP-TF (I, II), Ear-2, HNF4 (α, γ), PNR, RXR (α, β, γ), Testicular receptor (2, 4), TLX) • subfamily 3 (Steroid hormone (Estrogen (α, β), Estrogen related (α, β, γ), Androgen, Glucocorticoid, Mineralocorticoid, Progesterone)) • subfamily 4 NUR (NGFIB, NOR1, NURR1) • subfamily 5 (LRH-1, SF1) • subfamily 6 (GCNF) • subfamily 0 (DAX1, SHP)
(2.2) Other Cys4
GATA (1, 2, 3, 4, 5, 6) • MTA (1, 2, 3)
(2.3) Cys2His2
ATBF1 • BCL(6, 11A, 11B) • CTCF • E4F1 • EGR (2, 3) • ERV3 • General transcription factors (TFIIA, TFIIB, TFIID, TFIIE, TFIIF: 1, 2, TFIIH: 1, 2, 4, 2I, 3A, 3C1, 3C2) • GFI1 • GLI-Krüppel family (1, 2, 3, YY1) • HIC (1, 2) • HIVEP (1, 2, 3) • IKZF (1, 2, 3) • ILF (2, 3) • KLF (2, 4, 5, 6, 9, 10, 11, 12, 13) • MTF1 • MYT1 • OSR1 • Sp1 • zinc finger ((3, 7, 9, 10, 19, 22, 24, 33B, 34, 35, 41, 43, 44, 51, 74, 143, 146, 148, 165, 202, 217, 219, 238, 239, 259, 267, 268, 281, 295, 318, 330, 346, 350, 365, 366, 384, 451, 452, 471, 593, 638, 649, 655) • Zbtb7 (7A) • ZBT (16, 17, 33)
(2.4) Cys6
(2.5) Alternating composition
AIRE • DIDO1 • GRLF1 • ING (1, 2, 4) • JARID (1A, 1B, 1C, 1D, 2) • JMJD1B
(3) Helix-turn-helix
domains
ARX • CDX (1, 2) • CRX • CUTL1 • DLX (3, 4, 5) • EMX2 • EN (1, 2) • FHL (1, 2, 3) • HESX1 • HHEX • HLX • Homeobox (A1, A3, A4, A5, A7, A9, A10, A11, A13, B1, B2, B3, B4, B5, B6, B7, B8, B9, B13, C4, C5, C6, C8, C9, C10, C11, C13, D1, D3, D4, D8, D9, D10, D11, D12, D13) • HOPX • MEIS (1, 2) • MEOX2 • MNX1 • MSX (1, 2) • NANOG • NKX (2-1, 2-5, 3-1) • PHF (3, 6, 10, 17) • POU domain (PIT-1, BRN-3: 1, 2, Octamer transcription factor: 1, 2, 3/4, 6, 7) • OTX (1, 2) • PDX1
(3.2) Paired box
PAX (1, 2, 3, 4, 5, 6, 7, 8, 9)
E2F (1, 2, 3, 4, 5) • FOX proteins (C1, C2, E1, G1, H1, K2, L2, M1, N3, O1A, , O3A, O4, P1, P2, P3)
HSF (1, 2, 4)
(3.5) Tryptophan clusters
ELF (4, 5) • EGF • ELK (1, 3, 4) • ERF • ERG • ETS (1, 2) • ETV (1, 4, 5, 6) • FLI1 • Interferon regulatory factors (1, 2, 3, 4, 5, 6, 7, 8) • MYB • MYBL2
(3.6) TEA domain
transcriptional enhancer factor 1, 2
(4) β-Scaffold factors with
minor groove contacts
(4.1) Rel homology region
NF-κB (NFKB1, NFKB2, REL, RELA, RELB) • NFAT (C1, C2, C3, C4, 5)
(4.2) STAT
STAT (1, 2, 3, 4, 5, 6)
(4.3) p53
(4.4) MADS box
Mef2 (A, B, C, D) • SRF
HNF (1A, 1B) • LEF1 • SOX (2, 3, 4, 5, 6, 8, 9, 10, 11, 13, 15, 18) • SRY • SSRP1
(4.10) Cold-shock domain
(4.11) Runt
(0) Other
transcription factors
(0.2) HMGI(Y)
HMGA (1, 2) • HBP1
Rb • RBL1 • RBL2
(0.5) AP-2/EREBP-related factors
Apetala 2 • EREBP • B3
(0.6) Miscellaneous
ARID (1A, 1B, 2, 3A, 3B, 4A) • CAP • IFI (16, 35) • MLL (2, 3, T1) • MNDA • NFI (A, B, C, X) • NFY (A, B, C) • Rho/Sigma • R-SMAD