LTA
The encoded protein, a member of the tumor necrosis factor family, is a cytokine produced by lymphocytes. The protein is highly inducible, secreted, and forms heterotrimers with lymphotoxin-beta which anchor lymphotoxin-alpha to the cell surface. This protein also mediates a large variety of inflammatory, immunostimulatory, and antiviral responses, is involved in the formation of secondary lymphoid organs during development and plays a role in apoptosis. Genetic variations in this gene are associated with susceptibility to leprosy type 4 and psoriatic arthritis
Function
Cytokine that in its homotrimeric form binds to TNFRSF1A/TNFR1, TNFRSF1B/TNFBR and TNFRSF14/HVEM (PubMed:9462508).
In its heterotrimeric form with LTB binds to TNFRSF3/LTBR. Lymphotoxin is produced by lymphocytes and is cytotoxic for a wide range of tumor cells in vitro and in vivo.
Biological Process
Apoptotic processManual Assertion Based On ExperimentTAS:ProtInc
Cell-cell signalingManual Assertion Based On ExperimentTAS:ProtInc
Defense response to Gram-positive bacteriumIEA:Ensembl
Humoral immune responseIEA:Ensembl
Lymph node developmentIEA:Ensembl
Negative regulation of fibroblast proliferationIEA:Ensembl
Positive regulation of apoptotic processIEA:Ensembl
Positive regulation of chronic inflammatory response to antigenic stimulusIEA:Ensembl
Positive regulation of glial cell proliferationIEA:Ensembl
Positive regulation of humoral immune response mediated by circulating immunoglobulinIEA:Ensembl
Positive regulation of interferon-gamma productionIEA:Ensembl
Response to hypoxiaIEA:Ensembl
Response to lipopolysaccharideIEA:Ensembl
Response to nutrientIEA:Ensembl
Response to xenobiotic stimulusIEA:Ensembl
Signal transductionManual Assertion Based On ExperimentTAS:ProtInc
Cellular Location
Secreted
Membrane
The homotrimer is secreted. The heterotrimer is membrane-associated.
Involvement in disease
Psoriatic arthritis (PSORAS):
An inflammatory, seronegative arthritis associated with psoriasis. It is a heterogeneous disorder ranging from a mild, non-destructive disease to a severe, progressive, erosive arthropathy. Five types of psoriatic arthritis have been defined: asymmetrical oligoarthritis characterized by primary involvement of the small joints of the fingers or toes; asymmetrical arthritis which involves the joints of the extremities; symmetrical polyarthritis characterized by a rheumatoid like pattern that can involve hands, wrists, ankles, and feet; arthritis mutilans, which is a rare but deforming and destructive condition; arthritis of the sacroiliac joints and spine (psoriatic spondylitis).
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Datasheet