BP

GO:0000165

MAPK cascade

An intracellular protein kinase cascade containing at least a MAPK, a MAPKK and a MAP3K. The cascade can also contain two additional tiers: the upstream MAP4K and the downstream MAP Kinase-activated kinase (MAPKAPK). The kinases in each tier phosphorylate and activate the kinases in the downstream tier to transmit a signal within a cell.

IEA

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:0001958

endochondral ossification

Replacement ossification wherein bone tissue replaces cartilage.

IEA

BP

GO:0002062

chondrocyte differentiation

The process in which a chondroblast acquires specialized structural and/or functional features of a chondrocyte. A chondrocyte is a polymorphic cell that forms cartilage.

IEA

BP

GO:0006366

transcription from RNA polymerase II promoter

The synthesis of RNA from a DNA template by RNA polymerase II, originating at an RNA polymerase II promoter. Includes transcription of messenger RNA (mRNA) and certain small nuclear RNAs (snRNAs).

IEA

BP

GO:0006915

apoptotic process

A programmed cell death process which begins when a cell receives an internal (e.g. DNA damage) or external signal (e.g. an extracellular death ligand), and proceeds through a series of biochemical events (signaling pathway phase) which trigger an execution phase. The execution phase is the last step of an apoptotic process, and is typically characterized by rounding-up of the cell, retraction of pseudopodes, reduction of cellular volume (pyknosis), chromatin condensation, nuclear fragmentation (karyorrhexis), plasma membrane blebbing and fragmentation of the cell into apoptotic bodies. When the execution phase is completed, the cell has died.

IEA

BP

GO:0007399

nervous system development

The process whose specific outcome is the progression of nervous tissue over time, from its formation to its mature state.

IEA

BP

GO:0007512

adult heart development

The process whose specific outcome is the progression of the adult heart over time, from its formation to the mature structure.

IEP

BP

GO:0007517

muscle organ development

The process whose specific outcome is the progression of the muscle over time, from its formation to the mature structure. The muscle is an organ consisting of a tissue made up of various elongated cells that are specialized to contract and thus to produce movement and mechanical work.

TAS

BP

GO:0035914

skeletal muscle cell differentiation

The process in which a relatively unspecialized cell acquires specialized features of a skeletal muscle cell, a somatic cell located in skeletal muscle.

IEA

BP

GO:0045944

positive regulation of transcription from RNA polymerase II promoter

Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter.

IDA

CC

GO:0005634

nucleus

A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.

IDA

CC

GO:0005654

nucleoplasm

That part of the nuclear content other than the chromosomes or the nucleolus.

IDA

CC

GO:0005737

cytoplasm

All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

IEA

CC

GO:0043231

intracellular membrane-bounded organelle

Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane and occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane.

IDA

MF

GO:0000977

RNA polymerase II regulatory region sequence-specific DNA binding

Interacting selectively and non-covalently with a specific sequence of DNA that is part of a regulatory region that controls the transcription of a gene or cistron by RNA polymerase II.

IDA

MF

GO:0000978

RNA polymerase II core promoter proximal region sequence-specific DNA binding

Interacting selectively and non-covalently with a sequence of DNA that is in cis with and relatively close to a core promoter for RNA polymerase II.

IEA

MF

GO:0000981

RNA polymerase II transcription factor activity, sequence-specific DNA binding

Interacting selectively and non-covalently with a specific DNA sequence in order to modulate transcription by RNA polymerase II. The transcription factor may or may not also interact selectively with a protein or macromolecular complex.

IDA

MF

GO:0001077

transcriptional activator activity, RNA polymerase II core promoter proximal region sequence-specific binding

Interacting selectively and non-covalently with a sequence of DNA that is in cis with and relatively close to a core promoter for RNA polymerase II (RNAP II) in order to activate or increase the frequency, rate or extent of transcription from the RNAP II promoter.

IEA

MF

GO:0003700

transcription factor activity, sequence-specific DNA binding

Interacting selectively and non-covalently with a specific DNA sequence in order to modulate transcription. The transcription factor may or may not also interact selectively with a protein or macromolecular complex.

NAS

MF

GO:0005515

protein binding

Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).

IPI

MF

GO:0033613

activating transcription factor binding

Interacting selectively and non-covalently with an activating transcription factor, any protein whose activity is required to initiate or upregulate transcription.

IPI

MF

GO:0042803

protein homodimerization activity

Interacting selectively and non-covalently with an identical protein to form a homodimer.

IEA

MF

GO:0042826

histone deacetylase binding

Interacting selectively and non-covalently with the enzyme histone deacetylase.

IPI

MF

GO:0046982

protein heterodimerization activity

Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.

IEA