Molecular weight (DA)
55kD
Immunogen
Synthesized peptide derived from part region of human protein
Specificity
MYOC Polyclonal Antibody detects endogenous levels of protein.
Formulation
Liquid in PBS containing 50% glycerol, and 0.02% sodium azide.
Dilution rate
WB 1:500-2000 ELISA 1:5000-20000
Purification process (Immunogen)
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Background
MYOC encodes the protein myocilin, which is believed to have a role in cytoskeletal function. MYOC is expressed in many occular tissues, including the trabecular meshwork, and was revealed to be the trabecular meshwork glucocorticoid-inducible response protein (TIGR). The trabecular meshwork is a specialized eye tissue essential in regulating intraocular pressure, and mutations in MYOC have been identified as the cause of hereditary juvenile-onset open-angle glaucoma. [provided by RefSeq, Jul 2008],
Function
disease:Defects in MYOC are the cause of primary open angle glaucoma type 1A (GLC1A) [MIM:137750]. Primary open angle glaucoma (POAG) is characterized by a specific pattern of optic nerve and visual field defects. The angle of the anterior chamber of the eye is open, and usually the intraocular pressure is increased. The disease is asymptomatic until the late stages, by which time significant and irreversible optic nerve damage has already taken place.,disease:Defects in MYOC may also contribute to primary congenital glaucoma type 3A (GLC3A) [MIM:231300]. Defects in MYOC may contribute to this phenotype via digenic inheritance. GLC3A is an autosomal recessive form of primary congenital glaucoma (PCG). PCG is characterized by marked increase of intraocular pressure at birth or early choldhood, large ocular globes (buphthalmos) and corneal edema. It results from developmental defects of th
Gene Name
MYOC GLC1A TIGR
Protein name
Myocilin (Trabecular meshwork-induced glucocorticoid response protein)
Human protein sequence Database
Q99972
Mouse protein sequence database
O70624
Rat protein sequence database
Q9R1J4
Cellular localization
Secreted . Golgi apparatus . Cytoplasmic vesicle . Secreted, extracellular space. Secreted, extracellular space, extracellular matrix . Secreted, extracellular exosome . Mitochondrion . Mitochondrion intermembrane space . Mitochondrion inner membrane . Mitochondrion outer membrane . Rough endoplasmic reticulum . Cell projection. Cell projection, cilium . Located preferentially in the ciliary rootlet and basal body of the connecting cilium of photoreceptor cells, and in the rough endoplasmic reticulum (PubMed:9169133). It is only imported to mitochondria in the trabecular meshwork (PubMed:17516541). Localizes to the Golgi apparatus in Schlemm's canal endothelial cells (PubMed:11053284). Appears in the extracellular space of trabecular meshwork cells by an unconventional mechanism, likely as
Tissue expression
Detected in aqueous humor (PubMed:12697062). Detected in the eye (at protein level) (PubMed:11431441). Widely expressed. Highly expressed in various types of muscle, ciliary body, papillary sphincter, skeletal muscle, heart, and bone marrow-derived mesenchymal stem cells. Expressed predominantly in the retina. In normal eyes, found in the inner uveal meshwork region and the anterior portion of the meshwork. In contrast, in many glaucomatous eyes, it is found in more regions of the meshwork and seems to be expressed at higher levels than in normal eyes, regardless of the type or clinical severity of glaucoma. The myocilin 35 kDa fragment is detected in aqueous humor and to a lesser extent in iris and ciliary body.
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