======= CTNS ======= == Gene Information == * **Official Symbol**: CTNS * **Official Name**: cystinosin, lysosomal cystine transporter * **Aliases and Previous Symbols**: N/A * **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=1497|1497]] * **UniProt**: [[https://www.uniprot.org/uniprot/O60931|O60931]] * **Interactions**: [[https://thebiogrid.org/search.php?search=CTNS&organism=9606|BioGRID]] * **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20CTNS|Open PubMed]] * **OMIM**: [[https://omim.org/entry/606272|Open OMIM]] == Function Summary == * **Entrez Summary**: This gene encodes a seven-transmembrane domain protein that functions to transport cystine out of lysosomes. Its activity is driven by the H+ electrochemical gradient of the lysosomal membrane. Mutations in this gene cause cystinosis, a lysosomal storage disorder. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2009]. * **UniProt Summary**: Cystine/H(+) symporter thought to transport cystine out of lysosomes. Plays an important role in melanin synthesis, possibly by preventing melanosome acidification and subsequent degradation of tyrosinase TYR. {ECO:0000269|PubMed:22649030}. |PQ-loop| |negative regulation of hydrogen peroxide biosynthetic process| |L-cystine transport| |L-cystine transmembrane transporter activity| |sulfur amino acid transport| |negative regulation of hydrogen peroxide metabolic process| |negative regulation of cofactor metabolic process| |regulation of hydrogen peroxide biosynthetic process| |positive regulation of mitochondrial membrane potential| |melanin biosynthetic process| |grooming behavior| |melanin metabolic process| |positive regulation of membrane potential| |secondary metabolite biosynthetic process| |regulation of hydrogen peroxide metabolic process| |modified amino acid transport| |vacuolar membrane| |negative regulation of reactive oxygen species biosynthetic process| |adult walking behavior| |walking behavior| |long-term memory| |phenol-containing compound biosynthetic process| |regulation of cofactor metabolic process| |neutral amino acid transport| |sulfur compound transport| |intermediate filament cytoskeleton| |visual learning| |pigment biosynthetic process| |visual behavior| |negative regulation of reactive oxygen species metabolic process| |secondary metabolic process| |glutathione metabolic process| |L-amino acid transport| |pigment metabolic process| |regulation of mitochondrial membrane potential| |adult locomotory behavior| |lens development in camera-type eye| |associative learning| |phenol-containing compound metabolic process| |regulation of reactive oxygen species biosynthetic process| |melanosome| |memory| |amino acid transport| |late endosome| |adult behavior| |learning| |regulation of reactive oxygen species metabolic process| |organic hydroxy compound biosynthetic process| |locomotory behavior| |cellular modified amino acid metabolic process| |ATP metabolic process| |lysosome| |early endosome| |learning or memory| |carboxylic acid transport| |organic acid transport| |cognition| |lysosomal membrane| |response to light stimulus| |cellular amino acid metabolic process| |camera-type eye development| |eye development| |visual system development| |sulfur compound metabolic process| |sensory system development| |regulation of membrane potential| |cofactor metabolic process| |response to radiation| |organic hydroxy compound metabolic process| |organic anion transport| |peptide metabolic process| |sensory organ development| |behavior| |anion transport| |intracellular membrane-bounded organelle| |brain development| |head development| |cellular amide metabolic process| |carboxylic acid metabolic process| |central nervous system development| |oxoacid metabolic process| |organic acid metabolic process| |response to abiotic stimulus| |aromatic compound biosynthetic process| |transmembrane transport| |organic cyclic compound biosynthetic process| |ion transport| |nervous system process| |negative regulation of cellular biosynthetic process| |negative regulation of biosynthetic process| |small molecule metabolic process| |nitrogen compound transport| |system process| \\ === CRISPR Data === ^Screen^Score^ |[[:results:exp80|RO-3307 4.7μM R02 exp80]]|-1.76| |[[:results:exp274|Citral 50μM R06 exp274]]|1.89| |[[:results:exp316|Geldanamycin 0.015 to 0.025μM on day4 R07 exp316]]|2.01| |[[:results:exp317|Geldanamycin 0.015 to 0.05μM on day4 R07 exp317]]|2.5| 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**: 9713 * **Expression level (log2 read counts)**: 5.59 {{:chemogenomics:nalm6 dist.png?nolink |}}