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Protein Page:
CRX (human)

Overview
CRX Binds and transactivates the sequence 5'-TAATC[CA]-3' which is found upstream of several photoreceptor-specific genes, including the opsin genes. Acts synergistically with other transcription factors, e.g. NRL and RX, to regulate photoreceptor cell-specific gene transcription. Essential for the maintenance of mammalian photoreceptors. Defects in CRX are the cause of Leber congenital amaurosis type 7 (LCA7). LCA designates a clinically and genetically heterogeneous group of childhood retinal degenerations, generally inherited in an autosomal recessive manner. Affected infants have little or no retinal photoreceptor function as tested by electroretinography. LCA represents the most common genetic cause of congenital visual impairment in infants and children. Defects in CRX are the cause of cone-rod dystrophy type 2 (CORD2); also known as cone-rod retinal dystrophy 2 (CRD2). CORDs are inherited retinal dystrophies belonging to the group of pigmentary retinopathies. CORDs are characterized by retinal pigment deposits visible on fundus examination, predominantly in the macular region, and initial loss of cone photoreceptors followed by rod degeneration. This leads to decreased visual acuity and sensitivity in the central visual field, followed by loss of peripheral vision. Severe loss of vision occurs earlier than in retinitis pigmentosa. Defects in CRX are a cause of retinitis pigmentosa (RP). RP leads to degeneration of retinal photoreceptor cells. Patients typically have night vision blindness and loss of midperipheral visual field. As their condition progresses, they lose their far peripheral visual field and eventually central vision as well. Belongs to the paired homeobox family. Note: This description may include information from UniProtKB.
Protein type: DNA binding protein
Cellular Component: transcription factor complex; nucleus
Molecular Function: leucine zipper domain binding; chromatin binding; transcription factor activity; nuclear hormone receptor binding
Biological Process: circadian rhythm; organ morphogenesis; visual perception; regulation of transcription, DNA-dependent; transcription, DNA-dependent; positive regulation of photoreceptor cell differentiation; retina development in camera-type eye; response to stimulus; positive regulation of transcription from RNA polymerase II promoter
Reference #:  O43186 (UniProtKB)
Alt. Names/Synonyms: cone-rod homeobox; Cone-rod homeobox protein; CORD2; CRD; CRX; LCA7; orthodenticle homeobox 3; OTX3
Gene Symbols: CRX
Molecular weight: 32,261 Da
Basal Isoelectric point: 9.23  Predict pI for various phosphorylation states
Select Structure to View Below

CRX

Protein Structure Not Found.


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Modification Sites and Domains  

Modification Sites in Parent Protein, Orthologs, and Isoforms  
 

Show Multiple Sequence Alignment


 SS 

SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.


 MS 

MS: The number of records in which this modification site was assigned using ONLY proteomic discovery-mode mass spectrometry.


       human

 
0 1 Y63-p ALFAKTQyPDVyARE
0 1 Y67-p KTQyPDVyAREEVAL
  mouse

 
Y63 ALFAKTQYPDVYARE
Y67 KTQYPDVYAREEVAL
  rat

 
Y63 ALFAKTQYPDVYARE
Y67 KTQYPDVYAREEVAL
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