PPBP
The protein encoded by this gene is a platelet-derived growth factor that belongs to the CXC chemokine family. This growth factor is a potent chemoattractant and activator of neutrophils. It has been shown to stimulate various cellular processes including DNA synthesis, mitosis, glycolysis, intracellular cAMP accumulation, prostaglandin E2 secretion, and sythesis of hyaluronic acid and sulfated glycosaminoglycan. It also stimulates the formation and secretion of plasminogen activator by synovial cells. [provided by RefSeq]
Function
LA-PF4 stimulates DNA synthesis, mitosis, glycolysis, intracellular cAMP accumulation, prostaglandin E2 secretion, and synthesis of hyaluronic acid and sulfated glycosaminoglycan. It also stimulates the formation and secretion of plasminogen activator by human synovial cells. NAP-2 is a ligand for CXCR1 and CXCR2, and NAP-2, NAP-273, NAP-274, NAP-2(1-66), and most potent NAP-2(1-63) are chemoattractants and activators for neutrophils. TC-1 and TC-2 are antibacterial proteins, in vitro released from activated platelet alpha-granules. CTAP-III(1-81) is more potent than CTAP-III desensitize chemokine-induced neutrophil activation.
Biological Process
Antimicrobial humoral immune response mediated by antimicrobial peptideManual Assertion Based On ExperimentIDA:UniProtKB
Cellular response to lipopolysaccharideManual Assertion Based On ExperimentIBA:GO_Central
Chemokine-mediated signaling pathwayManual Assertion Based On ExperimentIBA:GO_Central
Defense response to bacteriumIEA:UniProtKB-KW
Glucose transmembrane transportManual Assertion Based On ExperimentTAS:ProtInc
Inflammatory responseManual Assertion Based On ExperimentIBA:GO_Central
Killing of cells of another organismIDA:UniProtKB
Neutrophil chemotaxisManual Assertion Based On ExperimentIBA:GO_Central
Positive regulation of cell divisionIEA:UniProtKB-KW
Cellular Location
Secreted
PTM
Proteolytic removal of residues 1-9 produces the active peptide connective tissue-activating peptide III (CTAP-III) (low-affinity platelet factor IV (LA-PF4)).
Proteolytic removal of residues 1-13 produces the active peptide beta-thromboglobulin, which is released from platelets along with platelet factor 4 and platelet-derived growth factor.
NAP-2(1-66) is produced by proteolytical processing, probably after secretion by leukocytes other than neutrophils.
NAP-273 and NAP-274 seem not be produced by proteolytical processing of secreted precursors but are released in an active form from platelets.
Loading...
Datasheet