BYSL
Summary: Bystin is expressed as a 2-kb major transcript and a 3.6-kb minor transcript in SNG-M cells and in human trophoblastic teratocarcinoma HT-H cells. Protein binding assays determined that bystin binds directly to trophinin and tastin, and that binding is enhanced when cytokeratins 8 and 18 are present. Immunocytochemistry of HT-H cells showed that bystin colocalizes with trophinin, tastin, and the cytokeratins, suggesting that these molecules form a complex in trophectoderm cells at the time of implantation. Using immunohistochemistry it was determined that trophinin and bystin are found in the placenta from the sixth week of pregnancy. Both proteins were localized in the cytoplasm of the syncytiotrophoblast in the chorionic villi and in endometrial decidual cells at the uteroplacental interface. After week 10, the levels of trophinin, tastin, and bystin decreased and then disappeared from placental villi. [provided by RefSeq, Jul 2008].
Name | OMIM ID | Ensembl ID | HGNC ID | PHARMGKB ID | Map Location |
---|---|---|---|---|---|
bystin like | MIM:603871 | Ensembl:ENSG00000112578 | HGNC:HGNC:1157 | PA25472 | 6p21.1 |
GO terms in BYSL
Term Type | Evidence Type | GO Term ID | GO Des. |
---|---|---|---|
BP | IEA | GO:0000462 | maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) |
BP | IEA | GO:0001829 | trophectodermal cell differentiation |
BP | IBA | GO:0006364 | rRNA processing |
BP | TAS | GO:0007155 | cell adhesion |
BP | TAS | GO:0007565 | female pregnancy |
BP | IEA | GO:0008283 | cell proliferation |
CC | IBA | GO:0005634 | nucleus |
CC | IDA | GO:0005634 | nucleus |
CC | TAS | GO:0005654 | nucleoplasm |
CC | IBA | GO:0005730 | nucleolus |
CC | IDA | GO:0005730 | nucleolus |
CC | IBA | GO:0005737 | cytoplasm |
CC | TAS | GO:0005737 | cytoplasm |
CC | TAS | GO:0005829 | cytosol |
CC | HDA | GO:0016020 | membrane |
CC | IBA | GO:0030688 | preribosome, small subunit precursor |
CC | IDA | GO:0043231 | intracellular membrane-bounded organelle |
CC | IEA | GO:0045177 | apical part of cell |
MF | HDA | GO:0003723 | RNA binding |
MF | IPI | GO:0005515 | protein binding |
MF | IBA | GO:0030515 | snoRNA binding |
Gene expression in normal tissue: BYSL
Gene-model tissue-cancer distribution: Bubble Plot
Gene-drug pathway distribution
Pathways in BYSL
Database | Pathway ID | Pathway Des. |
---|---|---|
reactome | R-HSA-6791226 | Major pathway of rRNA processing in the nucleolus and cytosol |
reactome | R-HSA-72312 | rRNA processing |
reactome | R-HSA-8868773 | rRNA processing in the nucleus and cytosol |
reactome | R-HSA-8953854 | Metabolism of RNA |
Gene in drug-gene network: Network Plot

Gene-drug targets distribution
Gene Structure: PDB
Models in BYSL