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Rabbit Anti-RNF131 antibody
PJA2, also known as E3 ubiquitin-protein ligase praja-2, RNF131 (ring finger protein 131) or Neurodap1, is a 708 amino acid protein that contains one ring-type zinc finger and exists as two alternatively spliced isoforms. Significantly conserved in chimpanzee, dog, cow, mouse, rat, chicken and zebrafish, PJA2 shares 52% identity with PJA1, which is involved in protein ubiquitination in brain and may play a role in X-linked mental retardation. Encoded by a gene that maps to human chromosome 5q21.3, PJA2 localizes to both endoplasmic reticulum and Golgi apparatus membranes. Participating in E2-dependent, E3 ubiquitin-protein ligase activity, PJA2 binds to a variety of E2s and interacts with ubiquitin-conjugating enzymes, such as UBE2D2, in vitro.
Function:
Has E2-dependent E3 ubiquitin-protein ligase activity. Responsible for ubiquitination of cAMP-dependent protein kinase type I and type II-alpha/beta regulatory subunits and for targeting them for proteasomal degradation. Essential for PKA-mediated long-term memory processes.
Subunit:
Binds ubiquitin-conjugating enzymes (E2s). In vitro, interacts with the ubiquitin-conjugating enzyme, UBE2D2. The phosphorylated form interacts with PRKAR1A, PRKAR2A and PRKAR2B. Binds the catalytic subunits of cAMP-dependent protein kinase.
[SUBCELLULAR LOCATION] Cytoplasm. Cell membrane. Endoplasmic reticulum membrane; Peripheral membrane protein. Golgi apparatus membrane; Peripheral membrane protein. Cell junction, synapse (By similarity). Cell junction, synapse, postsynaptic cell membrane, postsynaptic density (By similarity). Note=Localizes at the cytoplasmic side of endoplasmic reticulum and Golgi apparatus. Expressed in the postsynaptic density region of synapses (By similarity). Co-localizes with PRKAR2A and PRKAR2B in the cytoplasm and the cell membrane.
Similarity:
Contains 1 RING-type zinc finger.
SWISS:
O43164
Gene ID:
9867
Database links:
Entrez Gene: 9867 Human
SwissProt: O43164 Human
Unigene: 483036 Human
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