BP

GO:0001501

skeletal system development

The process whose specific outcome is the progression of the skeleton over time, from its formation to the mature structure. The skeleton is the bony framework of the body in vertebrates (endoskeleton) or the hard outer envelope of insects (exoskeleton or dermoskeleton).

TAS

BP

GO:0001649

osteoblast differentiation

The process whereby a relatively unspecialized cell acquires the specialized features of an osteoblast, a mesodermal or neural crest cell that gives rise to bone.

IEA

BP

GO:0007267

cell-cell signaling

Any process that mediates the transfer of information from one cell to another. This process includes signal transduction in the receiving cell and, where applicable, release of a ligand and any processes that actively facilitate its transport and presentation to the receiving cell. Examples include signaling via soluble ligands, via cell adhesion molecules and via gap junctions.

TAS

BP

GO:0010862

positive regulation of pathway-restricted SMAD protein phosphorylation

Any process that increases the rate, frequency or extent of pathway-restricted SMAD protein phosphorylation. Pathway-restricted SMAD proteins and common-partner SMAD proteins are involved in the transforming growth factor beta receptor signaling pathways.

IBA

BP

GO:0030509

BMP signaling pathway

A series of molecular signals initiated by the binding of a member of the BMP (bone morphogenetic protein) family to a receptor on the surface of a target cell, and ending with regulation of a downstream cellular process, e.g. transcription.

IBA

BP

GO:0040007

growth

The increase in size or mass of an entire organism, a part of an organism or a cell.

IEA

BP

GO:0042981

regulation of apoptotic process

Any process that modulates the occurrence or rate of cell death by apoptotic process.

IBA

BP

GO:0043408

regulation of MAPK cascade

Any process that modulates the frequency, rate or extent of signal transduction mediated by the MAP kinase (MAPK) cascade.

IBA

BP

GO:0048468

cell development

The process whose specific outcome is the progression of the cell over time, from its formation to the mature structure. Cell development does not include the steps involved in committing a cell to a specific fate.

IBA

BP

GO:0051216

cartilage development

The process whose specific outcome is the progression of a cartilage element over time, from its formation to the mature structure. Cartilage elements are skeletal elements that consist of connective tissue dominated by extracellular matrix containing collagen type II and large amounts of proteoglycan, particularly chondroitin sulfate.

IEA

BP

GO:0060395

SMAD protein signal transduction

The cascade of processes by which a signal interacts with a receptor, causing a change in the activity of a SMAD protein, and ultimately effecting a change in the functioning of the cell.

IBA

CC

GO:0005615

extracellular space

That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.

IBA

CC

GO:0070062

extracellular exosome

A membrane-bounded vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.

IDA

MF

GO:0005102

receptor binding

Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.

TAS

MF

GO:0005125

cytokine activity

Functions to control the survival, growth, differentiation and effector function of tissues and cells.

IBA

MF

GO:0005160

transforming growth factor beta receptor binding

Interacting selectively and non-covalently with the transforming growth factor beta receptor.

IBA

MF

GO:0008083

growth factor activity

The function that stimulates a cell to grow or proliferate. Most growth factors have other actions besides the induction of cell growth or proliferation.

IEA

MF

GO:0070700

BMP receptor binding

Interacting selectively and non-covalently with a BMP receptor.

IDA