UniProt data
UniProt name: JTB_HUMAN (O76095)
Gene name: JTB; ORFNames=HSPC222
Organism: Homo sapiens (Human).
Function: Required for normal cytokinesis during mitosis. Plays a role in the regulation of cell proliferation. May be a component of the chromosomal passenger complex (CPC), a complex that acts as a key regulator of mitosis. The CPC complex has essential functions at the centromere in ensuring correct chromosome alignment and segregation and is required for chromatin-induced microtubule stabilization and spindle assembly. Increases AURKB activity. Inhibits apoptosis induced by TGFB1 (By similarity). Overexpression induces swelling of mitochondria and reduces mitochondrial membrane potential (By similarity). {ECO:0000250, ECO:0000269|PubMed:21225229}.
Subcellular location: Membrane {ECO:0000305}; Single-pass type I membrane protein {ECO:0000305}. Mitochondrion {ECO:0000250}. Cytoplasm. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome. Cytoplasm, cytoskeleton, spindle. Note=Detected at the centrosome and along spindle fibers during prophase and metaphase. Detected at the midbody during telophase.
Transmembrane domains:
- 106-126, 21 AA, Helical. {ECO:0000255}.
Sequence: 146 AA
CATM prediction
The sequence of JTB_HUMAN returned 1 potential models
The positions at the dimer's interface are highlighted in yellow. The position at the crossing point is highlighted in orange.
| # | Sequence and interface | d | θ | Z' | ω' | Score |
|---|---|---|---|---|---|---|
| 110 120 + | + | + |
(Å) | (°) | (Å) | (°) | ||
| Model 1 | QRLFWKFEGAVVCVALIFACLVIIRQR | 6.9 | -53.1° | 2.0 | 45.0 | -8.5 |
Click on the model number to visualize its details below.
MODEL 1 DETAILS
Precited structure:
Download model 1 structure: PDB, PyMOL session
List of hydrogen bonds:
| Donor | Acceptor | Distance |
|---|---|---|
| B, 108, LYS, HA | A, 107, TRP, O | 3.21Å |
| B, 111, GLY, HA1 | A, 108, LYS, O | 2.87Å |
| A, 108, LYS, HA | B, 107, TRP, O | 3.21Å |
| A, 111, GLY, HA1 | B, 108, LYS, O | 2.87Å |

