======= CRYBB3 =======
== Gene Information ==
* **Official Symbol**: CRYBB3
* **Official Name**: crystallin beta B3
* **Aliases and Previous Symbols**: N/A
* **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=1417|1417]]
* **UniProt**: [[https://www.uniprot.org/uniprot/P26998|P26998]]
* **Interactions**: [[https://thebiogrid.org/search.php?search=CRYBB3&organism=9606|BioGRID]]
* **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20CRYBB3|Open PubMed]]
* **OMIM**: [[https://omim.org/entry/123630|Open OMIM]]
== Function Summary ==
* **Entrez Summary**: Crystallins are separated into two classes: taxon-specific, or enzyme, and ubiquitous. The latter class constitutes the major proteins of vertebrate eye lens and maintains the transparency and refractive index of the lens. Since lens central fiber cells lose their nuclei during development, these crystallins are made and then retained throughout life, making them extremely stable proteins. Mammalian lens crystallins are divided into alpha, beta, and gamma families; beta and gamma crystallins are also considered as a superfamily. Alpha and beta families are further divided into acidic and basic groups. Seven protein regions exist in crystallins: four homologous motifs, a connecting peptide, and N- and C-terminal extensions. Beta-crystallins, the most heterogeneous, differ by the presence of the C-terminal extension (present in the basic group, none in the acidic group). Beta-crystallins form aggregates of different sizes and are able to self-associate to form dimers or to form heterodimers with other beta-crystallins. This gene, a beta basic group member, is part of a gene cluster with beta-A4, beta-B1, and beta-B2. Mutations in this gene result in cataract congenital nuclear autosomal recessive type 2. [provided by RefSeq, Feb 2013].
* **UniProt Summary**: Crystallins are the dominant structural components of the vertebrate eye lens.
|Crystall|
|structural constituent of eye lens|
|lens development in camera-type eye|
|visual perception|
|sensory perception of light stimulus|
|camera-type eye development|
|eye development|
|visual system development|
|sensory system development|
|sensory organ development|
|sensory perception|
|nervous system process|
|system process|
\\
=== CRISPR Data ===
^Screen^Score^
|[[:results:exp450|Artemisinin 50μM R08 exp450]]|1.82|
|[[:results:exp406|Thalidomide 20μM R07 exp406]]|1.88|
|[[:results:exp425|Beta-Estradiol 0.55μM R07 exp425]]|1.9|
|[[:results:exp247|UM0130462 0.025 to 0.035μM day4 R05 exp247]]|1.93|
No correlation found to any other genes in chemogenomics.
Global Fraction of Cell Lines Where Essential: 3/739
^Tissue^Fraction Of Cell Lines Where Essential^
|1290807.0|0/1|
|909776.0|0/1|
|bile duct|0/28|
|blood|1/28|
|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|1/5|
== Essentiality in NALM6 ==
* **Essentiality Rank**: 9265
* **Expression level (log2 read counts)**: -3.28
{{:chemogenomics:nalm6 dist.png?nolink |}}