Rabbit anti-Human TNPO3 Polyclonal Antibody

Uniprot Id

Q9Y5L0

Target Species

Human

Target Name

TNPO3

Target Full Name

Transportin-3

Target Function

Importin, which transports target proteins into the nucleus. Specifically mediates the nuclear import of splicing factor serine/arginine (SR) proteins, such as RBM4, SFRS1 and SFRS2, by recognizing phosphorylated SR domains. Also mediates the nuclear import of serine/arginine (SR) protein CPSF6, independently of CPSF6 phosphorylation. The nuclear import process is regulated by the small GTPase Ran that partitions between cytoplasm and nucleus in the predominantly GDP- and GTP-bound form, respectively. Importin associates with target cargo proteins in the cytoplasm, and the competitive binding of GTP-bound Ran induces the release of cargos in the nucleus.; (Microbial infection) Involved in immunodeficiency virus (HIV-1) infection by importing the pre-integration complex (PIC) into the nucleus. Required for a nuclear maturation step of HIV-1 prior to integration.

Target Involvement

Limb-girdle muscular dystrophy 1F (LGMD1F)

Target Subcellular Location

Nucleus envelope. Cytoplasm.

Target Tissue Specificity

Expressed in skeletal muscle.

Target Synonyms

IPO12; TRNSR; LGMD1F; LGMDD2; MTR10A; TRN-SR; TRN-SR2; Transportin 3 (TNPO3)

Target Background

The protein encoded by this gene is a nuclear import receptor for serine/arginine-rich (SR) proteins such as the splicing factors SFRS1 and SFRS2. The encoded protein has also been shown to be involved in HIV-1 infection, apparently through interaction with the HIV-1 capsid protein. Several protein-coding and non-coding transcript variants have been found for this gene.