Guanine nucleotide-exchange proteins (GEPs) accelerate replacement of bound GDP with GTP and thereby activate ADP-ribosylation factors (ARFs), a family of guanine nucleotide-binding proteins that play an important role in intracellular vesicular trafficking. GEPs comprise two major families, large GEPs that are inhibited by brefeldin A (BFA), a protein that effects Golgi structure and a group of smaller GEPs that are insenstive to BFA. Two genes for GEPs found on human chromosomes 8 and 20 encode BFA sensitive GEPs designated BIG1 and BIG2. Both GEPS contain a sec7 domain that is responsible for their brefeldin inhibition and also their catalytic activity. In vivo, BIG1 and BIG2 exist in macromolecular complexes that move between the Golgi membranes and cytosol. BIG2 associates with PKA regulatory subunits, implying that BIG2 may act as an A kinase-anchoring protein (AKAP) that could coordinate the cAMP and ARF regulatory pathways.

ARFGEF1; ADPribosylation factor guanine nucleotide exchange factor 1(brefeldin A inhibited); ARFGEP1; Brefeldin A inhibited GEP 1; Brefeldin A inhibited guanine nucleotide exchange protein 1; p200 ARF GEP1; p200 ARF guanine nucleotide exchange factor; BIG1_HUMAN.

Mouse,Human,Rat,Chicken,Dog,Pig,Cow,Sheep

WB

WB 1:500-2000

209kD

10565

Q9Y6D6

https://www.uniprot.org/uniprotkb/Q9Y6D6

Cytoplasm. Cytoplasm, perinuclear region. Golgi apparatus. Golgi apparatus, trans-Golgi network (By similarity). Nucleus. Nucleus, nucleolus. Nucleus matrix. Membrane. Note=Translocates from cytoplasm to membranes and nucleus upon cAMP treatment.

Expressed in placenta, lung, heart, brain, kidney and pancreas.

KLH conjugated synthetic peptide derived from human BIG1/ARFGEF1

Rabbit

Polyclonal

IgG

affinity purified by Protein A

Liquid

0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.

Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles.