Recombinant Human Nascent polypeptide-associated complex subunit alpha (NACA)

Uniprot Id

Q13765

Target Species

Human

Target Name

NACA

Target Full Name

Nascent polypeptide-associated complex subunit alpha

Target Function

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.

Target Subcellular Location

Cytoplasm. Nucleus.

Target Protein Families

NAC-alpha family

Target Tissue Specificity

Ubiquitously expressed.

Target Research Area

Epigenetics and Nuclear Signaling

Target Synonyms

Alpha NAC; Alpha-NAC; Hom s 2.02; HSD48 ; MGC117224; NAC-alpha; naca; NACA/1.9.2; NACA_HUMAN; NACA1; Nascent polypeptide associated complex alpha polypeptide; Nascent polypeptide associated complex alpha subunit; Nascent polypeptide associated complex subunit alpha; Nascent polypeptide-associated complex subunit alpha

Target Background

This gene encodes a protein that associates with basic transcription factor 3 (BTF3) to form the nascent polypeptide-associated complex (NAC). This complex binds to nascent proteins that lack a signal peptide motif as they emerge from the ribosome, blocking interaction with the signal recognition particle (SRP) and preventing mistranslocation to the endoplasmic reticulum. This protein is an IgE autoantigen in atopic dermatitis patients. Alternative splicing results in multiple transcript variants, but the full length nature of some of these variants, including those encoding very large proteins, has not been determined. There are multiple pseudogenes of this gene on different chromosomes.