The splicing of Group II introns. This occurs by a ribozymic mechanism where the intron sequence forms a distinct 3D structure, characteristic of Group II introns and containing splice site consensus sequences, that is involved in catalyzing the splicing reactions, though protein factors are also required in vivo. Splicing occurs by a series of two transesterification reactions (mechanistically similar to those for splicing of nuclear mRNAs) initiated by a bulged adenosine residue within the intron sequence as the initiating nucleophile. The intron is excised as a lariat.

The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules.

The contractile fiber of smooth muscle cells.

The attachment of an adhesion molecule in one cell to an identical molecule in an adjacent cell.

RNA splicing, via transesterification reactions

Splicing of RNA via a series of two transesterification reactions.

The attachment of an adhesion molecule in one cell to a nonidentical adhesion molecule in an adjacent cell.

Catalysis of the removal of a phosphate group from the carbon-5 position of D-myo-inositol 4,5-bisphosphate.

RNA splicing, via transesterification reactions with guanosine as nucleophile

Splicing of RNA via a series of two transesterification reactions with exogenous guanosine as the initiating nucleophile.

The posttranslational modification of peptidyl-proline to form 4-hydroxy-L-proline; catalyzed by procollagen-proline,2-oxoglutarate-4-dioxygenase.

The attachment of an adhesion molecule on a neuronal cell to a nonidentical adhesion molecule in an adjacent cell.

The posttranscriptional addition of methyl groups to specific residues in a tRNA molecule.

RNA splicing, via transesterification reactions with bulged adenosine as nucleophile

Splicing of RNA via a series of two transesterification reactions with a bulged adenosine residue from the intron branch point as the initiating nucleophile. When the initial RNA for the splicing reaction is a single molecule (cis splicing), the excised intron is released in a lariat structure.