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prolactin regulatory element-binding protein; mammalian guanine nucleotide exchange factor msec12 (PREB, SEC12)
Function:
- first identified based on its probable role in the regulation of pituitary gene transcription
- binds to the prolactin gene promoter & seems to activate transcription
- guanine nucleotide exchange factor that activates SARA2
- required for the formation of COP2 transport vesicles from the ER
- binds SARA2
Structure: contains 3 WD repeats
Compartment:
- nucleus (putative)
- endoplasmic reticulum membrane
- single-pass membrane protein (putative)
Expression: ubiquitous
General
guanine nucleotide exchange factor (GDP/GTP dissociation stimulator, guanine nucleotide-releasing factor/protein, GNEF, GNDS, GDS)
membrane protein
transcription factor (TF)
WD repeat protein family
Properties
SIZE: entity length = 417 aa
MW = 45 kD
COMPARTMENT: cell nucleus
MOTIF: WD repeat {152-191}
WD repeat {194-232}
WD repeat {298-337}
transmembrane domain {389-409}
Database Correlations
OMIM 606395
UniProt Q9HCU5
Pfam PF00400
Entrez Gene 10113
Kegg hsa:10113
References
UniProt :accession Q9HCU5