======= QTRT1 =======
== Gene Information ==
* **Official Symbol**: QTRT1
* **Official Name**: queuine tRNA-ribosyltransferase catalytic subunit 1
* **Aliases and Previous Symbols**: N/A
* **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=81890|81890]]
* **UniProt**: [[https://www.uniprot.org/uniprot/Q9BXR0|Q9BXR0]]
* **Interactions**: [[https://thebiogrid.org/search.php?search=QTRT1&organism=9606|BioGRID]]
* **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20QTRT1|Open PubMed]]
* **OMIM**: [[https://omim.org/entry/609615|Open OMIM]]
== Function Summary ==
* **Entrez Summary**: N/A
* **UniProt Summary**: Catalytic subunit of the queuine tRNA-ribosyltransferase (TGT) that catalyzes the base-exchange of a guanine (G) residue with queuine (Q) at position 34 (anticodon wobble position) in tRNAs with GU(N) anticodons (tRNA-Asp, -Asn, -His and -Tyr), resulting in the hypermodified nucleoside queuosine (7-(((4,5-cis- dihydroxy-2-cyclopenten-1-yl)amino)methyl)-7-deazaguanosine) (PubMed:11255023, PubMed:20354154). Catalysis occurs through a double-displacement mechanism. The nucleophile active site attacks the C1' of nucleotide 34 to detach the guanine base from the RNA, forming a covalent enzyme-RNA intermediate. The proton acceptor active site deprotonates the incoming queuine, allowing a nucleophilic attack on the C1' of the ribose to form the product (By similarity). {ECO:0000250|UniProtKB:P28720, ECO:0000255|HAMAP- Rule:MF_03218, ECO:0000269|PubMed:11255023, ECO:0000269|PubMed:20354154}.
|TGT|
|queuine tRNA-ribosyltransferase activity|
|tRNA-guanine transglycosylation|
|tRNA modification|
|tRNA processing|
|mitochondrial outer membrane|
|RNA modification|
|tRNA metabolic process|
|ncRNA processing|
|ncRNA metabolic process|
|protein heterodimerization activity|
|protein-containing complex|
|RNA processing|
|protein homodimerization activity|
|RNA metabolic process|
|gene expression|
\\
=== CRISPR Data ===
^Screen^Score^
|[[:results:exp41|BI-2536 0.001μM R01 exp41]]|1.7|
|[[:results:exp29|Rapamycin 1μM R00 exp29]]|2.02|
|[[:results:exp422|Wiskostatin 3μM R07 exp422]]|2.43|
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**: 7725
* **Expression level (log2 read counts)**: 5.49
{{:chemogenomics:nalm6 dist.png?nolink |}}