UniProt data
UniProt name: ICOSL_HUMAN (O75144)
Gene name: ICOSLG; Synonyms=B7H2, B7RP1, ICOSL, KIAA0653
Organism: Homo sapiens (Human).
Function: Ligand for the T-cell-specific cell surface receptor ICOS. Acts as a costimulatory signal for T-cell proliferation and cytokine secretion; induces also B-cell proliferation and differentiation into plasma cells. Could play an important role in mediating local tissue responses to inflammatory conditions, as well as in modulating the secondary immune response by co- stimulating memory T-cell function (By similarity). {ECO:0000250}.
Subcellular location: Membrane {ECO:0000250}; Single-pass type I membrane protein {ECO:0000250}.
Transmembrane domains:
- 257-277, 21 AA, Helical. {ECO:0000255}.
Sequence: 302 AA
CATM prediction
The sequence of ICOSL_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 |
|---|---|---|---|---|---|---|
| 260 270 2 + | + | + | |
(Å) | (°) | (Å) | (°) | ||
| Model 1 | AATWSILAVLCLLVVVAVAIGWVCRDR | 7.3 | -51.1° | 3.3 | 48.0 | -6.8 |
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, 271, VAL, HA | A, 270, ALA, O | 3.27Å |
| B, 274, GLY, HA1 | A, 271, VAL, O | 3.34Å |
| A, 271, VAL, HA | B, 270, ALA, O | 3.27Å |
| A, 274, GLY, HA1 | B, 271, VAL, O | 3.34Å |

