CCAAT/enhancer binding protein (C/EBP) alpha is a family of transcription factors that all contain a highly conserved, basic-leucine zipper domain at the C-terminus that is involved in dimerization and DNA binding. C/EBP family of transcription factors regulates viral and cellular CCAAT/enhancer element-mediated transcription. C/EBP family consist of several related proteins, C/EBP alpha, beta, gamma, delta, that form homodimers and that form heterodimers with each other. C/EBP proteins contain the bZIP region, which is characterized by two motifs in the C-terminal half of the protein, a basic region involved in DNA binding and a leucine zipper motif involved in dimerization. C/EBPs differ significantly in their physiological functions and in their downstream target genes. For example, mice lacking C/EBP alpha die shortly after birth due to severe hypoglycemia and the absence of glycogen storage in liver, whereas knockout of C/EBP beta causes defects in female reproduction. Recombinant protein corresponding to aa270-358 from the bZIP Region of human CDBP alpha, expressed in E.coli. Accession Number: NP_004355 Molecular Weight: ~14.5kD (126 amino acids) Amino Acid Sequence: GAG KAKKSVDKNS NEYRVRRERN NIAVRKSRDK AKQRNVETQQ KVLELTSDND RLRKRVEQLS RELDTLRGIF RQLPESSLVK AMGNCA Storage and Stability: May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing.. Store at -20C. Aliquots are stable for 6 months after receipt at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.