IA2 Protein, Human (293a.a, N-His)

IA2 Protein is pivotal in vesicle-mediated secretory processes, crucial for secretory vesicle accumulation in the hippocampus, pituitary, and pancreatic islets. Essential for insulin-related functions, IA2 ensures normal insulin-containing vesicle levels, preventing degradation and promoting glucose-stimulated insulin secretion. IA2's influence extends to neurotransmitter regulation, required for normal norepinephrine, dopamine, and serotonin accumulation. In females, IA2 is uniquely essential for pituitary hormone accumulation and secretion. It also maintains normal renin expression. Despite lacking intrinsic enzyme activity, IA2 may regulate active protein-tyrosine phosphatases, like PTPRA, through dimerization. IA2's interaction with ICA512-TMF highlights its role in modulating insulin secretory granule dynamics and proposes a tethering mechanism to the actin cytoskeleton, dependent on UTRN and regulated by ICA512-CFF dimerization. IA2 Protein, Human (293a.a, N-His) is the recombinant human-derived IA2 protein, expressed by E. coli , with N-6*His labeled tag. The total length of IA2 Protein, Human (293a.a, N-His) is 293 a.a., with molecular weight of ~35 kDa.

The IA2 protein plays a pivotal role in vesicle-mediated secretory processes, with essential functions extending across various tissues. It is required for the normal accumulation of secretory vesicles in key areas such as the hippocampus, pituitary, and pancreatic islets. Particularly crucial for insulin-related processes, IA2 is necessary for the accumulation of normal levels of insulin-containing vesicles, preventing their degradation and contributing to insulin secretion in response to glucose stimuli. IA2's influence also extends to neurotransmitter regulation in the brain, where it is required for the normal accumulation of norepinephrine, dopamine, and serotonin. Interestingly, in females, IA2 is uniquely indispensable for the normal accumulation and secretion of pituitary hormones like luteinizing hormone (LH) and follicle-stimulating hormone (FSH). Moreover, IA2 plays a role in maintaining normal levels of renin expression and release. Despite lacking intrinsic enzyme activity, IA2 may regulate catalytic active protein-tyrosine phosphatases, such as PTPRA, through dimerization. The intricate dynamics of IA2 are further highlighted in its interaction with ICA512-TMF, where it modulates the dynamics and exocytosis of insulin secretory granules, proposing a tethering mechanism to the actin cytoskeleton dependent on UTRN and regulated by ICA512-CFF dimerization.

Data is not available.

Human

E. coli

N-6*His

Q16849-1 (M687-Q979)

5798  [NCBI]

MDISTGHMILAYMEDHLRNRDRLAKEWQALCAYQAEPNTCATAQGEGNIKKNRHPDFLPYDHARIKLKVESSPSRSDYINASPIIEHDPRMPAYIATQGPLSHTIADFWQMVWESGCTVIVMLTPLVEDGVKQCDRYWPDEGASLYHVYEVNLVSEHIWCEDFLVRSFYLKNVQTQETRTLTQFHFLSWPAEGTPASTRPLLDFRRKVNKCYRGRSCPIIVHCSDGAGRTGTYILIDMVLNRMAKGVKEIDIAATLEHVRDQRPGLVRSKDQFEFALTAVAEEVNAILKALPQ

Approximately 35 kDa

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  Greater than 95% as determined by reducing SDS-PAGE.

Lyophilized powder.

Lyophilized from a 0.2 μm filtered solution of 50 mM Tris-HCL, 300 mM NaCl, pH 7.4.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.