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| SEC14L3 | SEC14-like protein 3; Probable hydrophobic ligand-binding protein; may play a role in the transport of hydrophobic ligands like tocopherol, squalene and phospholipids; SEC14 family (400 aa) | |||
| CERK | Ceramide kinase; Catalyzes specifically the phosphorylation of ceramide to form ceramide 1-phosphate. Acts efficiently on natural and analog ceramides (C6, C8, C16 ceramides, and C8-dihydroceramide), to a lesser extent on C2-ceramide and C6-dihydroceramide, but not on other lipids, such as various sphingosines. Binds phosphoinositides (537 aa) | |||
| RPS6KB1 | Ribosomal protein S6 kinase beta-1; Serine/threonine-protein kinase that acts downstream of mTOR signaling in response to growth factors and nutrients to promote cell proliferation, cell growth and cell cycle progression. Regulates protein synthesis through phosphorylation of EIF4B, RPS6 and EEF2K, and contributes to cell survival by repressing the pro-apoptotic function of BAD. Under conditions of nutrient depletion, the inactive form associates with the EIF3 translation initiation complex. Upon mitogenic stimulation, phosphorylation by the mammalian target of rapamycin complex 1 (mTO [...] (525 aa) | |||
| SEC14L5 | SEC14-like protein 5; SEC14 like lipid binding 5; PRELI domain containing (696 aa) | |||
| CERS4 | Ceramide synthase 4; May be either a bona fide (dihydro)ceramide synthase or a modulator of its activity. When overexpressed in cells is involved in the production of sphingolipids containing different fatty acid donors (N-linked stearoyl- (C18) or arachidoyl- (C20) ceramides) in a fumonisin B1-independent manner (By similarity); CERS class homeoboxes (394 aa) | |||
| SMPD2 | Sphingomyelin phosphodiesterase 2; Converts sphingomyelin to ceramide. Hydrolyze 1-acyl-2- lyso-sn-glycero-3-phosphocholine (lyso-PC) and 1-O-alkyl-2-lyso- sn-glycero-3-phosphocholine (lyso-platelet-activating factor). The physiological substrate seems to be Lyso-PAF; Belongs to the neutral sphingomyelinase family (423 aa) | |||
| CHKA | Choline kinase alpha; Has a key role in phospholipid biosynthesis and may contribute to tumor cell growth. Catalyzes the first step in phosphatidylcholine biosynthesis. Contributes to phosphatidylethanolamine biosynthesis. Phosphorylates choline and ethanolamine. Has higher activity with choline (457 aa) | |||
| CERS2 | Ceramide synthase 2; Suppresses the growth of cancer cells. May be involved in sphingolipid synthesis; CERS class homeoboxes (380 aa) | |||
| CERS3 | Ceramide synthase 3; Has (dihydro)ceramide synthesis activity with relatively broad substrate specificity, but a preference for C18-0 and other middle- to long-chain fatty acyl-CoAs (By similarity). It is crucial for the synthesis of very long-chain ceramides in the epidermis, to maintain epidermal lipid homeostasis and terminal differentiation; CERS class homeoboxes (383 aa) | |||
| RPS6KB2 | Ribosomal protein S6 kinase beta-2; Phosphorylates specifically ribosomal protein S6 (482 aa) | |||
| CERS5 | Ceramide synthase 5; Dihydroceramide synthase. Catalyzes the acylation of sphingosine to form dihydroceramide, with high selectivity toward palmitoyl-CoA as acyl donor compared to stearoyl-CoA. Inhibited by fumonisin B1 (By similarity); CERS class homeoboxes (392 aa) | |||
| SGK2 | Serine/threonine-protein kinase Sgk2; Serine/threonine-protein kinase which is involved in the regulation of a wide variety of ion channels, membrane transporters, cell growth, survival and proliferation. Up- regulates Na(+) channels- SCNN1A/ENAC, K(+) channels- KCNA3/Kv1.3, KCNE1 and KCNQ1, amino acid transporter- SLC6A19, glutamate transporter- SLC1A6/EAAT4, glutamate receptors- GRIA1/GLUR1 and GRIK2/GLUR6, Na(+)/H(+) exchanger- SLC9A3/NHE3, and the Na(+)/K(+) ATPase (427 aa) | |||
| CERKL | Ceramide kinase-like protein; Has no detectable ceramide-kinase activity. Overexpression of CERKL protects cells from apoptosis in oxidative stress conditions (558 aa) | |||
| SYNJ2 | Synaptojanin-2; Inositol 5-phosphatase which may be involved in distinct membrane trafficking and signal transduction pathways. May mediate the inhibitory effect of Rac1 on endocytosis; Belongs to the synaptojanin family (1496 aa) | |||
| SGK1 | Serine/threonine-protein kinase Sgk1; Serine/threonine-protein kinase which is involved in the regulation of a wide variety of ion channels, membrane transporters, cellular enzymes, transcription factors, neuronal excitability, cell growth, proliferation, survival, migration and apoptosis. Plays an important role in cellular stress response. Contributes to regulation of renal Na(+) retention, renal K(+) elimination, salt appetite, gastric acid secretion, intestinal Na(+)/H(+) exchange and nutrient transport, insulin-dependent salt sensitivity of blood pressure, salt sensitivity of peri [...] (526 aa) | |||
| ASAH2B | Putative inactive neutral ceramidase B; N-acylsphingosine amidohydrolase 2B (165 aa) | |||
| ITPA | Inosine triphosphate pyrophosphatase; Pyrophosphatase that hydrolyzes the non-canonical purine nucleotides inosine triphosphate (ITP), deoxyinosine triphosphate (dITP) as well as 2’-deoxy-N-6-hydroxylaminopurine triposphate (dHAPTP) and xanthosine 5’-triphosphate (XTP) to their respective monophosphate derivatives. The enzyme does not distinguish between the deoxy- and ribose forms. Probably excludes non-canonical purines from RNA and DNA precursor pools, thus preventing their incorporation into RNA and DNA and avoiding chromosomal lesions (194 aa) | |||
| SEC14L1 | SEC14-like protein 1; May play a role in innate immunity by inhibiting the antiviral RIG-I signaling pathway. In this pathway, functions as a negative regulator of DDX58/RIG-I, the cytoplasmic sensor of viral nucleic acids. Prevents the interaction of DDX58 with MAVS/IPS1, an important step in signal propagation. May also regulate the SLC18A3 and SLC5A7 cholinergic transporters; PRELI domain containing (719 aa) | |||
| CERS6 | Ceramide synthase 6; May be involved in sphingolipid synthesis or its regulation; CERS class homeoboxes (392 aa) | |||
| ASAH2 | Neutral ceramidase; Hydrolyzes the sphingolipid ceramide into sphingosine and free fatty acid at an optimal pH of 6.5-8.5. Acts as a key regulator of sphingolipid signaling metabolites by generating sphingosine at the cell surface. Acts as a repressor of apoptosis both by reducing C16-ceramide, thereby preventing ceramide-induced apoptosis, and generating sphingosine, a precursor of the antiapoptotic factor sphingosine 1-phosphate. Probably involved in the digestion of dietary sphingolipids in intestine by acting as a key enzyme for the catabolism of dietary sphingolipids and regulatin [...] (780 aa) | |||
| SGK3 | Serum/glucocorticoid regulated kinase family, member 3; Serine/threonine-protein kinase which is involved in the regulation of a wide variety of ion channels, membrane transporters, cell growth, proliferation, survival and migration. Up-regulates Na(+) channels- SCNN1A/ENAC and SCN5A, K(+) channels- KCNA3/KV1.3, KCNE1, KCNQ1 and KCNH2/HERG, epithelial Ca(2+) channels- TRPV5 and TRPV6, chloride channel- BSND, creatine transporter- SLC6A8, Na(+)/dicarboxylate cotransporter- SLC13A2/NADC1, Na(+)-dependent phosphate cotransporter- SLC34A2/NAPI-2B, amino acid transporters- SLC1A5/ASCT2 and [...] (496 aa) | |||
| CHKB | Choline/ethanolamine kinase; Has a key role in phospholipid biosynthesis. Catalyzes the first step in phosphatidylethanolamine biosynthesis. Phosphorylates ethanolamine, and can also act on choline (in vitro). Has higher activity with ethanolamine. May not significantly contribute to in vivo phosphatidylcholine biosynthesis; Belongs to the choline/ethanolamine kinase family (395 aa) | |||
| SYNJ1 | Synaptojanin-1; Phosphatase that acts on various phosphoinositides, including phosphatidylinositol 4-phosphate, phosphatidylinositol (4,5)-bisphosphate and phosphatidylinositol (3,4,5)-trisphosphate. Has a role in clathrin-mediated endocytosis (By similarity). Hydrolyzes PIP2 bound to actin regulatory proteins resulting in the rearrangement of actin filaments downstream of tyrosine kinase and ASH/GRB2 (By similarity); Belongs to the synaptojanin family (1612 aa) | |||
| ENSG00000249590 | Uncharacterized protein (338 aa) | |||
| ACER3 | Alkaline ceramidase 3; Hydrolyzes only phytoceramide into phytosphingosine and free fatty acid. Does not have reverse activity; Alkaline ceramidases (267 aa) | |||
| SEC14L2 | SEC14-like protein 2; Carrier protein. Binds to some hydrophobic molecules and promotes their transfer between the different cellular sites. Binds with high affinity to alpha-tocopherol. Also binds with a weaker affinity to other tocopherols and to tocotrienols. May have a transcriptional activatory activity via its association with alpha-tocopherol. Probably recognizes and binds some squalene structure, suggesting that it may regulate cholesterol biosynthesis by increasing the transfer of squalene to a metabolic active pool in the cell; SEC14 family (403 aa) | |||
