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Rabbit Anti-Pumilio 2 antibody
Pumilio 2 is a sequence-specific RNA-binding protein that regulates translation and mRNA stability by binding mRNA targets. It supports proliferation and self-renewal of stem cells by regulating the translation of key transcripts. The Pumilio gene encodes proteins that are required for development of germ stem cells in one or both sexes. The Pumilio protein interacts with the human Nanos1 protein and this interaction may play a conserved role in germ cell development. Pumilio 2 is highly expressed in testis and ovary and at lower levels in brain, heart, kidney, liver, muscle, placenta, intestine and stomach. It is also expressed in stem cells, germ cells and in most fetal tissues.
Function:
Pumilio 2, a human homolog of Pumilio, a protein required to maintain germ line stem cells in Drosophila and Caenorhabditis elegans, forms a stable complex with DAZ through the same functional domain required for RNA binding, protein-protein interactions and rescue of Pumilio mutations in flies. Pumilio 2 is expressed predominantly in human embryonic stem cells and germ cells and colocalizes with DAZ and DAZL in germ cells. Pumilio 2 is a component of conserved cellular machinery that may be required for germ cell development.
Subunit:
Homodimer; homodimerizes in vitro. Interacts with DAZ, DAZL and NANOS1 via its pumilio repeats. Binds to a RNA consensus sequence, that is related to the Nanos Response Element (NRE), a 16 bp sequence found in the 3'-UTR of the Drosophila hb mRNA. Also binds to the NRE. Interacts with NANOS3 (By similarity). Interacts with SNAPIN.
Subcellular Location:
Cytoplasm (Probable). Cytoplasmic granule (By similarity). Cytoplasm, perinuclear region. Note=The cytoplasmic granules are stress granules which are a dense aggregation in the cytosol composed of proteins and RNAs that appear when the cell is under stress. Co-localizes with NANOS3 in the stress granules (By similarity). Co-localizes with NANOS1 and SNAPIN in the perinuclear region of germ cells.
Tissue Specificity:
Expressed in male germ cells of adult testis (at protein level). Highly expressed in testis and ovary. Predominantly expressed in stem cells and germ cells. Expressed at lower level in brain, heart, kidney, liver, muscle, placenta, intestine and stomach Expressed in cerebellum, corpus callosum, caudate nucleus, hippocampus, medulla oblongata and putamen. Expressed in all fetal tissues tested.
Similarity:
Contains 1 PUM-HD domain.
Contains 8 pumilio repeats.
SWISS:
Q8TB72
Gene ID:
23369
Database links:
Entrez Gene: 282441 Cow
Entrez Gene: 23369 Human
Entrez Gene: 80913 Mouse
Omim: 607205 Human
SwissProt: Q8TB72 Human
SwissProt: Q80U58 Mouse
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