CRX (gene)

Cone-rod homeobox

Identifiers

CRX; CORD2; CRD; LCA7; OTX3

External IDs

OMIM: 602225 MGI: 1194883 HomoloGene: 467 GeneCards: CRX Gene

Gene Ontology
Molecular function	• chromatin binding • sequence-specific DNA binding transcription factor activity • sequence-specific DNA binding
Cellular component	• nucleus • transcription factor complex
Biological process	• transcription, DNA-dependent • regulation of transcription, DNA-dependent • multicellular organismal development • visual perception • organ morphogenesis • positive regulation of transcription from RNA polymerase II promoter • response to stimulus
Sources: Amigo / QuickGO

RNA expression pattern

More reference expression data

Orthologs

Species

Human

Mouse

RefSeq (mRNA)

RefSeq (protein)

Location (UCSC)

Chr 19:
48.33 – 48.36 Mb

Chr 7:
16.45 – 16.47 Mb

PubMed search

[1]

[2]

Cone-rod homeobox protein is a protein that in humans is encoded by the CRX gene.^[1]^[2]^[3]

The protein encoded by this gene is a photoreceptor-specific transcription factor which plays a role in the differentiation of photoreceptor cells. This homeodomain protein is necessary for the maintenance of normal cone and rod function. Mutations in this gene are associated with photoreceptor degeneration, Leber congenital amaurosis type III and the autosomal dominant cone-rod dystrophy 2. Several alternatively spliced transcript variants of this gene have been described, but the full-length nature of some variants has not been determined.^[3]

References

^ Freund CL, Gregory-Evans CY, Furukawa T, Papaioannou M, Looser J, Ploder L, Bellingham J, Ng D, Herbrick JA, Duncan A, Scherer SW, Tsui LC, Loutradis-Anagnostou A, Jacobson SG, Cepko CL, Bhattacharya SS, McInnes RR (Dec 1997). "Cone-rod dystrophy due to mutations in a novel photoreceptor-specific homeobox gene (CRX) essential for maintenance of the photoreceptor". Cell 91 (4): 543–53. doi:10.1016/S0092-8674(00)80440-7. PMID 9390563.
^ Freund CL, Wang QL, Chen S, Muskat BL, Wiles CD, Sheffield VC, Jacobson SG, McInnes RR, Zack DJ, Stone EM (Apr 1998). "De novo mutations in the CRX homeobox gene associated with Leber congenital amaurosis". Nat Genet 18 (4): 311–2. doi:10.1038/ng0498-311. PMID 9537410.
^ ^a ^b "Entrez Gene: CRX cone-rod homeobox". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=1406.

External links

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

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, JDP2, 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, L3) · NFIL3 · NRL · NRF (1, 2, 3) · XBP1

(1.2) Basic helix-loop-helix (bHLH)	ATOH1 · AhR · AHRR · ARNT · ASCL1 · BHLHB2 · BMAL (ARNTL, ARNTL2) · CLOCK · EPAS1 · FIGLA · HAND (1, 2) · HES (5, 6) · HEY (1, 2, L) · HES1 · HIF (1A, 3A) · ID (1, 2, 3, 4) · LYL1 · MESP2 · MXD4 · MYCL1 · MYCN · Myogenic regulatory factors (MyoD, Myogenin, MYF5, MYF6) · Neurogenins (1, 2, 3) · NeuroD (1, 2) · NPAS (1, 2, 3) · OLIG (1, 2) · Pho4 · Scleraxis · SIM (1, 2) · TAL (1, 2) · Twist · USF1

(1.3) bHLH-ZIP	AP-4 · MAX · MITF · MNT · MLX · MXI1 · Myc · SREBP (1, 2)

(1.4) NF-1	NFI (A, B, C, X) · SMAD (R-SMAD (1, 2, 3, 5, 9) - I-SMAD (6, 7) - 4)

(1.5) RF-X	RFX (1, 2, 3, 4, 5, ANK)

(1.6) Basic helix-span-helix (bHSH)	AP-2 (α, β, γ, δ, ε)

(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 (Androgen, Estrogen (α, β), Glucocorticoid, Mineralocorticoid, Progesterone), Estrogen related (α, β, γ)) 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) · TRPS1

(2.3) Cys₂His₂	General transcription factors (TFIIA, TFIIB, TFIID, TFIIE (1, 2), TFIIF (1, 2), TFIIH (1, 2, 4, 2I, 3A, 3C1, 3C2)) ATBF1 · BCL (6, 11A, 11B) · CTCF · E4F1 · EGR (1, 2, 3, 4) · ERV3 · GFI1 · GLI-Krüppel family (1, 2, 3, REST, S2, YY1) · HIC (1, 2) · HIVEP (1, 2, 3) · IKZF (1, 2, 3) · ILF (2, 3) · KLF (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17) · MTF1 · MYT1 · OSR1 · PRDM9 · SALL (1, 2, 3, 4) · SP (1, 2, 4, 7, 8) · TSHZ3 · WT1 · Zbtb7 (7A, 7B) · ZBTB (16, 17, 20, 32, 33, 40) · 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, 300, 318, 330, 346, 350, 365, 366, 384, 423, 451, 452, 471, 593, 638, 644, 649, 655)

(2.4) Cys₆	HIVEP1

(2.5) Alternating composition	AIRE · DIDO1 · GRLF1 · ING (1, 2, 4) · JARID (1A, 1B, 1C, 1D, 2) · JMJD1B

(3) Helix-turn-helix domains

(3.1) Homeodomain	ARX · CDX (1, 2) · CRX · CUTL1 · DBX (1, 2) · DLX (3, 4, 5) · EMX2 · EN (1, 2) · FHL (1, 2, 3) · HESX1 · HHEX · HLX · Homeobox (A1, A2, 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, C12, C13, D1, D3, D4, D8, D9, D10, D11, D12, D13) · HOPX · IRX (1, 2, 3, 4, 5, 6, MKX) · LMX (1A, 1B) · MEIS (1, 2) · MEOX2 · MNX1 · MSX (1, 2) · NANOG · NKX (2-1, 2-2, 2-3, 2-5, 3-1, 3-2, 6-1, 6-2) · NOBOX · PBX (1, 2, 3) · PHF (1, 3, 6, 8, 10, 16, 17, 20, 21A) · PHOX (2A, 2B) · PITX (1, 2, 3) · POU domain (PIT-1, BRN-3: A, B, C, Octamer transcription factor: 1, 2, 3/4, 6, 7, 11) · OTX (1, 2) · PDX1 · SATB2 · SHOX2 · VAX1 · ZEB (1, 2)

(3.2) Paired box	PAX (1, 2, 3, 4, 5, 6, 7, 8, 9)

(3.3) Fork head / winged helix	E2F (1, 2, 3, 4, 5) · FOX proteins (A1, A2, A3, C1, C2, D3, D4, E1, E3, F1, G1, H1, I1, J1, J2, K1, K2, L2, M1, N1, N3, O1, O3, O4, P1, P2, P3, P4)

(3.4) Heat Shock Factors	HSF (1, 2, 4)

(3.5) Tryptophan clusters	ELF (2, 4, 5) · EGF · ELK (1, 3, 4) · ERF · ETS (1, 2, ERG, SPIB) · 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, 3, 4)

(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	p53 · TBX (1, 2, 3, 5, 19, 21, 22, Brachyury, TBR1, TBR2) · TP63

(4.4) MADS box	Mef2 (A, B, C, D) · SRF

(4.6) TATA binding proteins	TBP · TBPL1

(4.7) High-mobility group	BBX · HMGB (1, 2, 3, 4) · HMGN (1, 2, 3, 4) · HNF (1A, 1B) · LEF1 · SOX (1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 18, 21) · SRY · SSRP1 · TCF (3, 4) · TOX (1, 2, 3, 4)

(4.10) Cold-shock domain	CSDA, YBX1

(4.11) Runt	CBF (CBFA2T2, CBFA2T3, RUNX1, RUNX2, RUNX3, RUNX1T1)

(0) Other transcription factors

(0.2) HMGI(Y)	HMGA (1, 2) · HBP1

(0.3) Pocket domain	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 · NFY (A, B, C) · Rho/Sigma

see also transcription factor/coregulator deficiencies
B bsyn: dna (repl, cycl, reco, repr) · tscr (fact, tcrg, nucl, rnat, rept, ptts) · tltn (risu, pttl, nexn) · dnab, rnab/runp · stru (domn, 1°, 2°, 3°, 4°)

CRX (gene)

References

Further reading

External links