======= SPTLC3 ======= == Gene Information == * **Official Symbol**: SPTLC3 * **Official Name**: serine palmitoyltransferase long chain base subunit 3 * **Aliases and Previous Symbols**: N/A * **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=55304|55304]] * **UniProt**: [[https://www.uniprot.org/uniprot/Q9NUV7|Q9NUV7]] * **Interactions**: [[https://thebiogrid.org/search.php?search=SPTLC3&organism=9606|BioGRID]] * **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20SPTLC3|Open PubMed]] * **OMIM**: [[https://omim.org/entry/611120|Open OMIM]] == Function Summary == * **Entrez Summary**: This gene encodes a subunit of the serine palmitoyltransferase complex which catalyzes the rate-limiting step in sphingolipid biosynthesis. This subunit metabolizes lauroyl- and myristoyl-CoA and generates C14 and C16-sphingoid bases. [provided by RefSeq, Mar 2017]. * **UniProt Summary**: 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. {ECO:0000269|PubMed:19416851}. |Beta elim lyase| |Aminotran 1 2| |serine C-palmitoyltransferase complex| |serine C-palmitoyltransferase activity| |sphingoid biosynthetic process| |sphingoid metabolic process| |pyridoxal phosphate binding| |sphingolipid biosynthetic process| |membrane lipid biosynthetic process| |sphingolipid metabolic process| |ammonium ion metabolic process| |membrane lipid metabolic process| |lipid biosynthetic process| |endoplasmic reticulum membrane| |cellular lipid metabolic process| |lipid metabolic process| |organonitrogen compound biosynthetic process| \\ === CRISPR Data === ^Screen^Score^ |[[:results:exp357|Dorsomorphin 5μM R07 exp357]]|-1.9| |[[:results:exp501|Methotrexate 0.01μM R08 exp501]]|1.91| |[[:results:exp58|UM131593 0.1μM R01 exp58]]|2.23| No correlation found to any other genes in chemogenomics. Global Fraction of Cell Lines Where Essential: 0/739 ^Tissue^Fraction Of Cell Lines Where Essential^ |1290807.0|0/1| |909776.0|0/1| |bile duct|0/28| |blood|0/28| |bone|0/26| |breast|0/33| |central nervous system|0/56| |cervix|0/4| |colorectal|0/17| |esophagus|0/13| |fibroblast|0/1| |gastric|0/16| |kidney|0/21| |liver|0/20| |lung|0/75| |lymphocyte|0/16| |ovary|0/26| |pancreas|0/24| |peripheral nervous system|0/16| |plasma cell|0/15| |prostate|0/1| |skin|0/24| |soft tissue|0/9| |thyroid|0/2| |upper aerodigestive|0/22| |urinary tract|0/29| |uterus|0/5| == Essentiality in NALM6 == * **Essentiality Rank**: 10627 * **Expression level (log2 read counts)**: 6.01 {{:chemogenomics:nalm6 dist.png?nolink |}}