======= AP4B1 =======
== Gene Information ==
* **Official Symbol**: AP4B1
* **Official Name**: adaptor related protein complex 4 subunit beta 1
* **Aliases and Previous Symbols**: N/A
* **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=10717|10717]]
* **UniProt**: [[https://www.uniprot.org/uniprot/Q9Y6B7|Q9Y6B7]]
* **Interactions**: [[https://thebiogrid.org/search.php?search=AP4B1&organism=9606|BioGRID]]
* **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20AP4B1|Open PubMed]]
* **OMIM**: [[https://omim.org/entry/607245|Open OMIM]]
== Function Summary ==
* **Entrez Summary**: This gene encodes a subunit of a heterotetrameric adapter-like complex 4 that is involved in targeting proteins from the trans-Golgi network to the endosomal-lysosomal system. Mutations in this gene are associated with cerebral palsy spastic quadriplegic type 5 (CPSQ5) disorder. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2011].
* **UniProt Summary**: Component of the adaptor protein complex 4 (AP-4). Adaptor protein complexes are vesicle coat components involved both in vesicle formation and cargo selection. They control the vesicular transport of proteins in different trafficking pathways (PubMed:10066790, PubMed:10436028). AP-4 forms a non clathrin- associated coat on vesicles departing the trans-Golgi network (TGN) and may be involved in the targeting of proteins from the trans-Golgi network (TGN) to the endosomal-lysosomal system. It is also involved in protein sorting to the basolateral membrane in epithelial cells and the proper asymmetric localization of somatodendritic proteins in neurons. AP-4 is involved in the recognition and binding of tyrosine-based sorting signals found in the cytoplasmic part of cargos, but may also recognize other types of sorting signal (Probable). {ECO:0000269|PubMed:10066790, ECO:0000269|PubMed:10436028, ECO:0000305|PubMed:10066790, ECO:0000305|PubMed:10436028}.
|B2-adapt-app C|
|Cnd1|
|Adaptin N|
|AP-4 adaptor complex|
|clathrin adaptor complex|
|endosome lumen|
|clathrin binding|
|extrinsic component of membrane|
|trans-Golgi network membrane|
|trans-Golgi network|
|protein targeting|
|intracellular protein transport|
|protein transport|
|intracellular transport|
|peptide transport|
|amide transport|
|cellular protein localization|
|cellular macromolecule localization|
|establishment of protein localization|
|establishment of localization in cell|
|nitrogen compound transport|
|vesicle-mediated transport|
\\
=== CRISPR Data ===
^Screen^Score^
|[[:results:exp287|HMS-I2 5μM R06 exp287]]|-2.24|
|[[:results:exp54|Taxol 0.002μM R01 exp54]]|-2.24|
|[[:results:exp224|CB-839 10μM R05 exp224]]|-2.05|
|[[:results:exp28|Pimelic-diphenylamide-106 5μM R00 exp28]]|-1.82|
|[[:results:exp277|Curcumin 6.5μM R06 exp277]]|-1.71|
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**: 17294
* **Expression level (log2 read counts)**: 5.61
{{:chemogenomics:nalm6 dist.png?nolink |}}