======= LIN28B =======


== Gene Information ==
  * **<color #00a2e8>Official Symbol</color>**: LIN28B
  * **<color #00a2e8>Official Name</color>**: lin-28 homolog B
  * **<color #00a2e8>Aliases and Previous Symbols</color>**: N/A
  * **<color #00a2e8>Entrez ID</color>**: [[https://www.ncbi.nlm.nih.gov/gene/?term=389421|389421]]
  * **<color #00a2e8>UniProt</color>**: [[https://www.uniprot.org/uniprot/Q6ZN17|Q6ZN17]]
  * **<color #00a2e8>Interactions</color>**: [[https://thebiogrid.org/search.php?search=LIN28B&organism=9606|BioGRID]]
  * **<color #00a2e8>PubMed articles</color>**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20LIN28B|Open PubMed]]
  * **<color #00a2e8>OMIM</color>**: [[https://omim.org/entry/611044|Open OMIM]]

== Function Summary ==
  * **<color #00a2e8>Entrez Summary</color>**:  The protein encoded by this gene belongs to the lin-28 family, which is characterized by the presence of a cold-shock domain and a pair of CCHC zinc finger domains. This gene is highly expressed in testis, fetal liver, placenta, and in primary human tumors and cancer cell lines. It is negatively regulated by microRNAs that target sites in the 3' UTR, and overexpression of this gene in primary tumors is linked to the repression of let-7 family of microRNAs and derepression of let-7 targets, which facilitates cellular transformation. [provided by RefSeq, Jun 2012]. 
  * **<color #00a2e8>UniProt Summary</color>**:  Suppressor of microRNA (miRNA) biogenesis, including that of let-7 and possibly of miR107, miR-143 and miR-200c. Binds primary let-7 transcripts (pri-let-7), including pri-let-7g and pri-let-7a-1, and sequester them in the nucleolus, away from the microprocessor complex, hence preventing their processing into mature miRNA (PubMed:22118463). Does not act on pri-miR21 (PubMed:22118463). The repression of let-7 expression is required for normal development and contributes to maintain the pluripotent state of embryonic stem cells by preventing let-7-mediated differentiation. When overexpressed, recruits ZCCHC11/TUT4 uridylyltransferase to pre-let-7 transcripts, leading to their terminal uridylation and degradation (PubMed:19703396). This activity might not be relevant in vivo, as LIN28B-mediated inhibition of let-7 miRNA maturation appears to be ZCCHC11- independent (PubMed:22118463). Interaction with target pre-miRNAs occurs via an 5'-GGAG-3' motif in the pre-miRNA terminal loop. Mediates MYC-induced let-7 repression (By similarity). When overexpressed, isoform 1 stimulates growth of the breast adenocarcinoma cell line MCF-7. Isoform 2 has no effect on cell growth. {ECO:0000250|UniProtKB:Q45KJ6, ECO:0000269|PubMed:16971064, ECO:0000269|PubMed:18951094, ECO:0000269|PubMed:19703396, ECO:0000269|PubMed:22118463}.

<button type='primary' size='sm' modal='Pfam_Domains'>Pfam Domains</button>
<button type='primary' size='sm' modal='GO_terms'>GO Terms</button>


<modal id='Pfam_Domains' size='lg' title='Pfam Domains'>
|CSD|
</modal>

<modal id='GO_terms' size='lg' title='GO Terms'>
|miRNA catabolic process|
|pre-miRNA processing|
|miRNA metabolic process|
|ncRNA catabolic process|
|production of miRNAs involved in gene silencing by miRNA|
|dsRNA processing|
|production of small RNA involved in gene silencing by RNA|
|gene silencing by miRNA|
|posttranscriptional gene silencing by RNA|
|posttranscriptional gene silencing|
|gene silencing by RNA|
|RNA 3-end processing|
|gene silencing|
|regulation of gene expression, epigenetic|
|RNA catabolic process|
|nucleobase-containing compound catabolic process|
|ncRNA processing|
|heterocycle catabolic process|
|cellular nitrogen compound catabolic process|
|aromatic compound catabolic process|
|ncRNA metabolic process|
|organic cyclic compound catabolic process|
|posttranscriptional regulation of gene expression|
|zinc ion binding|
|nucleolus|
|RNA processing|
|cellular macromolecule catabolic process|
|macromolecule catabolic process|
|RNA binding|
|RNA metabolic process|
|negative regulation of gene expression|
|organic substance catabolic process|
|cellular catabolic process|
|gene expression|
</modal>
\\

 === CRISPR Data ===
<button type='primary' size='small' modal='Compound_Hit'>Compound Hit</button>
<button type='primary' size='small' modal='Most_Correlated_Genes'>Most Correlated Genes in Chemogenomics</button>
<button type='primary' size='small' modal='Essential_Avana'>Tissues where Essential in the Avana Dataset (DepMap 20Q1)</button>

<modal id='Compound_Hit' size='lg' title='Compound Hit'>
^Screen^Score^
|[[:results:exp191|Hypoxia 5%O2 R04 exp191]]|-2.06|
|[[:results:exp466|Cannabidiol 20μM R08 exp466]]|1.72|
|[[:results:exp317|Geldanamycin 0.015 to 0.05μM on day4 R07 exp317]]|1.74|
|[[:results:exp486|Heregulin-B 44ng/ml R08 exp486]]|1.81|
|[[:results:exp515|PU-H71 1μM R08 exp515]]|1.83|
</modal>

<modal id='Most_Correlated_Genes' size='lg' title='Most Correlated Genes in Chemogenomics'>
^Gene^Correlation^
|[[:human genes:r:rrm1|RRM1]]|0.52|
</modal>

<modal id='Essential_Avana' size='lg' title='Tissues where Essential in the Avana Dataset (DepMap 20Q1)'>
Global Fraction of Cell Lines Where Essential: 1/739
^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|1/20|
|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|
</modal>

== Essentiality in NALM6  ==
    * **<color #00a2e8>Essentiality Rank</color>**: 15330
    * **<color #00a2e8>Expression level (log2 read counts)</color>**: -4.6 
<button type='primary' size='small' modal='Dist_expr'>Expression Distribution</button>
<modal id='Dist_expr' size='lg' title='LIN28B Expression in NALM6 Cells: -4.6'>
{{:chemogenomics:nalm6 dist.png?nolink |}}
</modal>