May play a role in the integrity of hemidesmosome and the attachment of basal keratinocytes to the underlying basement membrane.
The 120 kDa linear IgA disease antigen is an anchoring filament component involved in dermal-epidermal cohesion. Is the target of linear IgA bullous dermatosis autoantibodies.
Epidermolysis bullosa, junctional 4, intermediate
JEB4
A form of epidermolysis bullosa, a genodermatosis characterized by recurrent blistering, fragility of the skin and mucosal epithelia, and erosions caused by minor mechanical trauma. JEB4 is an autosomal recessive, intermediate form in which blistering lesions occur between the epidermis and the dermis at the lamina lucida level of the basement membrane zone. In intermediate forms of junctional epidermolysis bullosa, blistering does not lead to the formation of chronic granulation tissue and does not affect the lifespan of affected individuals. Nail dystrophy and dental enamel defects are present. Scarring or non-scarring alopecia and diffuse hair loss may occur. JEB4 patients manifest blisters at birth or shortly afterward. Blisters may heal with atrophic scarring and variable hypo- or hyperpigmentation. Oral mucosa may be involved.
None
The disease is caused by variants affecting the gene represented in this entry.
Epithelial recurrent erosion dystrophy
ERED
A corneal dystrophy characterized by recurrent episodes of epithelial erosions from childhood, with occasional impairment of vision. Most patients have attacks of redness, photophobia, epiphora, and ocular pain. Exposure to sunlight or draught, dust and smoke and lack of sleep can precipitate attacks.
None
The disease is caused by variants affecting the gene represented in this entry.
The intracellular/endo domain is disulfide-linked.
Prolines at the third position of the tripeptide repeating unit (G-X-Y) are hydroxylated in some or all of the chains.
The ectodomain is shedded from the surface of keratinocytes resulting in a 120-kDa soluble form, also named as 120 kDa linear IgA disease antigen. The shedding is mediated by membrane-bound metalloproteases. This cleavage is inhibited by phosphorylation at Ser-544.
Detected in skin (PubMed:8618013). In the cornea, it is detected in the epithelial basement membrane, the epithelial cells, and at a lower level in stromal cells (at protein level) (PubMed:25676728). Stratified squamous epithelia. Found in hemidesmosomes. Expressed in cornea, oral mucosa, esophagus, intestine, kidney collecting ducts, ureter, bladder, urethra and thymus but is absent in lung, blood vessels, skeletal muscle and nerves.
BP180, BPAG2, COL17A1, Collagen alpha-1(XVII) chain, 180 kDa bullous pemphigoid antigen 2, Bullous pemphigoid antigen 2
Proteins
Immuno-oncology
150419Da
We found 1 product in 1 category
ab231939