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SPTLC2 | serine palmitoyltransferase, long chain base subunit 2; Serine palmitoyltransferase (SPT). The heterodimer formed with LCB1/SPTLC1 constitutes the catalytic core. The composition of the serine palmitoyltransferase (SPT) complex determines the substrate preference. The SPTLC1-SPTLC2-SPTSSA complex shows a strong preference for C16-CoA substrate, while the SPTLC1-SPTLC2-SPTSSB complex displays a preference for C18-CoA substrate (562 aa) | |||
SGPP1 | sphingosine-1-phosphate phosphatase 1; Has enzymatic activity against both sphingosine 1- phosphate (S1P) and dihydro-S1P. Regulates intracellular and extracellular S1P levels (441 aa) | |||
SDS | serine dehydratase (328 aa) | |||
SPTLC1 | serine palmitoyltransferase, long chain base subunit 1; Serine palmitoyltransferase (SPT). The heterodimer formed with SPTLC2 or SPTLC3 constitutes the catalytic core. The composition of the serine palmitoyltransferase (SPT) complex determines the substrate preference. The SPTLC1-SPTLC2-SPTSSA complex shows a strong preference for C16-CoA substrate, while the SPTLC1-SPTLC3-SPTSSA isozyme uses both C14-CoA and C16-CoA as substrates, with a slight preference for C14-CoA. The SPTLC1- SPTLC2-SPTSSB complex shows a strong preference for C18-CoA substrate, while the SPTLC1-SPTLC3-SPTSSB isoz [...] (473 aa) | |||
PSPH | phosphoserine phosphatase; Catalyzes the last step in the biosynthesis of serine from carbohydrates. The reaction mechanism proceeds via the formation of a phosphoryl-enzyme intermediates (225 aa) | |||
SPTSSA | serine palmitoyltransferase, small subunit A; Stimulates the activity of serine palmitoyltransferase (SPT). The composition of the serine palmitoyltransferase (SPT) complex determines the substrate preference. The SPTLC1-SPTLC2- SPTSSA complex shows a strong preference for C16-CoA substrate, while the SPTLC1-SPTLC3-SPTSSA isozyme uses both C14-CoA and C16- CoA as substrates, with a slight preference for C14-CoA (71 aa) | |||
AGXT | alanine-glyoxylate aminotransferase (392 aa) | |||
UBB | ubiquitin B (229 aa) | |||
ORMDL3 | ORM1-like 3 (S. cerevisiae); Negative regulator of sphingolipid synthesis. May indirectly regulate endoplasmic reticulum-mediated Ca(+2) signaling (153 aa) | |||
SGPP2 | sphingosine-1-phosphate phosphatase 2; Has specific phosphohydrolase activity towards sphingoid base 1-phosphates. Has high phosphohydrolase activity against dihydrosphingosine-1-phosphate and sphingosine-1-phosphate (S1P) in vitro. May play a role in attenuating intracellular sphingosine 1-phosphate (S1P) signaling. May play a role in pro-inflammatory signaling (399 aa) | |||
SHMT1 | serine hydroxymethyltransferase 1 (soluble); Interconversion of serine and glycine (By similarity) (483 aa) | |||
ORMDL1 | ORM1-like 1 (S. cerevisiae); Negative regulator of sphingolipid synthesis (153 aa) | |||
SHMT2 | serine hydroxymethyltransferase 2 (mitochondrial); Contributes to the de novo mitochondrial thymidylate biosynthesis pathway. Required to prevent uracil accumulation in mtDNA. Interconversion of serine and glycine. Associates with mitochondrial DNA (504 aa) | |||
SRR | serine racemase; Catalyzes the synthesis of D-serine from L-serine. D- serine is a key coagonist with glutamate at NMDA receptors. Has dehydratase activity towards both L-serine and D-serine (340 aa) | |||
SDSL | serine dehydratase-like; Has low serine dehydratase and threonine dehydratase activity (329 aa) | |||
CBS | cystathionine-beta-synthase; Only known pyridoxal phosphate-dependent enzyme that contains heme. Important regulator of hydrogen sulfide, especially in the brain, utilizing cysteine instead of serine to catalyze the formation of hydrogen sulfide. Hydrogen sulfide is a gastratransmitter with signaling and cytoprotective effects such as acting as a neuromodulator in the brain to protect neurons against hypoxic injury (By similarity) (551 aa) | |||
UBC | ubiquitin C (685 aa) | |||
ZDHHC9 | zinc finger, DHHC-type containing 9 (364 aa) | |||
GOLGA7 | golgin A7; May be involved in protein transport from Golgi to cell surface. The ZDHHC9-GOLGA7 complex is a palmitoyltransferase specific for HRAS and NRAS (137 aa) | |||
SPTSSB | serine palmitoyltransferase, small subunit B; Stimulates the activity of serine palmitoyltransferase (SPT). The composition of the serine palmitoyltransferase (SPT) complex determines the substrate preference, complexes with this subunit showing a clear preference for longer acyl-CoAs. The SPTLC1-SPTLC2-SPTSSB complex shows a strong preference for C18-CoA substrate, while the SPTLC1-SPTLC3-SPTSSB isozyme displays an ability to use a broader range of acyl-CoAs, without apparent preference. May play a role in signal transduction (76 aa) | |||
ABCA1 | ATP-binding cassette, sub-family A (ABC1), member 1 (2261 aa) | |||
AUP1 | ancient ubiquitous protein 1; May play a role in the translocation of terminally misfolded proteins from the endoplasmic reticulum lumen to the cytoplasm and their degradation by the proteasome (410 aa) | |||
SACM1L | SAC1 suppressor of actin mutations 1-like (yeast); Phosphoinositide phosphatase that hydrolyzes PtdIns(3)P and PtdIns(4)P. Has low activity towards PtdIns(3,5)P2 (By similarity) (587 aa) | |||
SPTLC3 | serine palmitoyltransferase, long chain base subunit 3; Serine palmitoyltransferase (SPT). The heterodimer formed with LCB1/SPTLC1 constitutes the catalytic core. The composition of the serine palmitoyltransferase (SPT) complex determines the substrate preference. The SPTLC1-SPTLC3-SPTSSA isozyme uses both C14-CoA and C16-CoA as substrates, while the SPTLC1-SPTLC3-SPTSSB has the ability to use a broader range of acyl-CoAs without apparent preference (552 aa) | |||
KDSR | 3-ketodihydrosphingosine reductase; Catalyzes the reduction of 3-ketodihydrosphingosine (KDS) to dihydrosphingosine (DHS) (332 aa) |