May promote appropriate targeting of ribosome-nascent polypeptide complexes (By similarity). Required for correct localization of the osk/oskar protein to the posterior pole during embryonic development. The osk protein directs the recruitment of molecules responsible for posterior body patterning and germline formation in the embryo. Drosophila melanogaster (taxid: 7227)
Prevents inappropriate targeting of non-secretory polypeptides to the endoplasmic reticulum (ER). Binds to nascent polypeptide chains as they emerge from the ribosome and blocks their interaction with the signal recognition particle (SRP), which normally targets nascent secretory peptides to the ER. Also reduces the inherent affinity of ribosomes for protein translocation sites in the ER membrane (M sites) (By similarity). Isoform 1 and isoform 2 appear to bind DNA and play roles in transcription. May act to regulate the expression of genes involved in the development of myotubes.
Prevents inappropriate targeting of non-secretory polypeptides to the endoplasmic reticulum (ER). Binds to nascent polypeptide chains as they emerge from the ribosome and blocks their interaction with the signal recognition particle (SRP), which normally targets nascent secretory peptides to the ER. Also reduces the inherent affinity of ribosomes for protein translocation sites in the ER membrane (M sites) (By similarity). Isoform 1 and isoform 2 appear to bind DNA and play roles in transcription. Isoform 1 may function as a specific coactivator for JUN, acting to stabilize the interaction of JUN homodimers with promoter elements.
Prevents inappropriate targeting of non-secretory polypeptides to the endoplasmic reticulum (ER). Binds to nascent polypeptide chains as they emerge from the ribosome and blocks their interaction with the signal recognition particle (SRP), which normally targets nascent secretory peptides to the ER. Also reduces the inherent affinity of ribosomes for protein translocation sites in the ER membrane (M sites). May act as a specific coactivator for JUN, binding to DNA and stabilizing the interaction of JUN homodimers with target gene promoters.
Prevents inappropriate targeting of non-secretory polypeptides to the endoplasmic reticulum (ER). Binds to nascent polypeptide chains as they emerge from the ribosome and blocks their interaction with the signal recognition particle (SRP), which normally targets nascent secretory peptides to the ER. Also reduces the inherent affinity of ribosomes for protein translocation sites in the ER membrane (M sites). May act as a specific coactivator for JUN, binding to DNA and stabilizing the interaction of JUN homodimers with target gene promoters.
Prevents inappropriate targeting of non-secretory polypeptides to the endoplasmic reticulum (ER). Binds to nascent polypeptide chains as they emerge from the ribosome and blocks their interaction with the signal recognition particle (SRP), which normally targets nascent secretory peptides to the ER. Also reduces the inherent affinity of ribosomes for protein translocation sites in the ER membrane (M sites). May act as a specific coactivator for JUN, binding to DNA and stabilizing the interaction of JUN homodimers with target gene promoters.
Prevents inappropriate targeting of non-secretory polypeptides to the endoplasmic reticulum (ER). Binds to nascent polypeptide chains as they emerge from the ribosome and blocks their interaction with the signal recognition particle (SRP), which normally targets nascent secretory peptides to the ER. Also reduces the inherent affinity of ribosomes for protein translocation sites in the ER membrane (M sites). May act as a specific coactivator for JUN, binding to DNA and stabilizing the interaction of JUN homodimers with target gene promoters.
Chinchilla lanigera (taxid: 34839)
Close Homologs in the Non-Redundant Database Detected by BLAST
>PF01849 NAC: NAC domain; InterPro: IPR002715 Nascent polypeptide-associated complex (NAC) is among the first ribosome-associated entities to bind the nascent polypeptide after peptide bond formation
The nascent polypeptide-associated complex (NAC) of yeast functions in the targeting process of ribosomes to the ER membrane []. NAC may prevent binding of ribosome nascent chains (RNCs) without a signal sequence to yeast membranes.; PDB: 3MCE_D 3MCB_A 3LKX_B 1TR8_B.
This hypothetical protein is found so far only in the Archaea. Its C-terminal domain of about 40 amino acids is homologous to the C-termini of the nascent polypeptide-associated complex alpha chain (alpha-NAC) and its yeast ortholog Egd2p and to the huntingtin-interacting protein HYPK. It shows weaker similarity, possibly through shared structural constraints rather than through homology, with the amino-terminal domain of elongation factor Ts. Alpha-NAC plays a role in preventing nascent polypeptides from binding inappropriately to membrane-targeting apparatus during translation, but is also active as a transcription regulator.
>COG1308 EGD2 Transcription factor homologous to NACalpha-BTF3 [Transcription]
The whole molecule is V-shaped, where each arm is a DsbC monomer of two domains linked by a hinge; and the N-termini of each monomer join to form the dimer interface at the base of the V, so are vital for dimerisation []. DsbC is required for disulphide bond formation and functions as a disulphide bond isomerase during oxidative protein-folding in bacterial periplasm. It also has chaperone activity []. ; PDB: 1EEJ_B 2IYJ_A 1TJD_A 1JZD_B 1JZO_A 1G0T_B 1T3B_A.