26957 Sec63
Thalassiosira pseudonana

The process of assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure.

Interacting selectively and non-covalently with a heat shock protein, any protein synthesized or activated in response to heat shock.

Interacting selectively and non-covalently with an unfolded protein.

The action of a molecule that contributes to the structural integrity of the ribosome.

The living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm.

An intracellular organelle, about 200 A in diameter, consisting of RNA and protein. It is the site of protein biosynthesis resulting from translation of messenger RNA (mRNA). It consists of two subunits, one large and one small, each containing only protein and RNA. Both the ribosome and its subunits are characterized by their sedimentation coefficients, expressed in Svedberg units (symbol: S). Hence, the prokaryotic ribosome (70S) comprises a large (50S) subunit and a small (30S) subunit, while the eukaryotic ribosome (80S) comprises a large (60S) subunit and a small (40S) subunit. Two sites on the ribosomal large subunit are involved in translation, namely the aminoacyl site (A site) and peptidyl site (P site). Ribosomes from prokaryotes, eukaryotes, mitochondria, and chloroplasts have characteristically distinct ribosomal proteins.

The cellular metabolic process in which a protein is formed, using the sequence of a mature mRNA molecule to specify the sequence of amino acids in a polypeptide chain. Translation is mediated by the ribosome, and begins with the formation of a ternary complex between aminoacylated initiator methionine tRNA, GTP, and initiation factor 2, which subsequently associates with the small subunit of the ribosome and an mRNA. Translation ends with the release of a polypeptide chain from the ribosome.

Catalysis of the reaction: a 1,2-diacyl-sn-glycerol 3-diphosphate + H2O = a 1,2-diacyl-sn-glycerol 3-phosphate + phosphate.

Catalysis of the reaction: TDP + H2O = TMP + phosphate.

NA

Catalysis of the reaction: H2O + UDP-2,3-bis(3-hydroxymyristoyl)glucosamine = 2,3-bis(3-hydroxymyristoyl)-beta-D-glucosaminyl 1-phosphate + UMP.

Catalysis of the hydrolysis of P(1),P(4)-bis(5'-nucleosyl)tetraphosphate into two nucleotides.

Catalysis of the reaction: deoxy-ATP + H2O = dAMP + diphosphate.

Catalysis of the hydrolysis of a pyrophosphate bond between two phosphate groups, leaving one phosphate on each of the two fragments.

Catalysis of the hydrolysis of any acid anhydride which contains phosphorus.

Catalysis of the reaction: dihydroneopterin monophosphate = dihydroneopterin + phosphate.

Catalysis of the reaction: dihydroneopterin triphosphate = dihydroneopterin phosphate + diphosphate.