SPEA 蛋白, E.coli (His)

SPEA is a key enzyme in cellular metabolism responsible for the biosynthesis of agmatine from arginine. This catalytic process involves the conversion of arginine to agmatine, thereby forming a complex network of biochemical pathways within the cell. SPEA Protein, E.coli (His) is the recombinant E. coli-derived SPEA protein, expressed by E. coli , with N-His labeled tag. The total length of SPEA Protein, E.coli (His) is 654 a.a., with molecular weight of ~77.4 kDa.

SPEA，也称为胍丁胺尿素水解酶，是一种在精氨酸生物合成胍丁胺中发挥核心作用的酶。具体来说，SPEA 催化精氨酸转化为胍丁胺，这是含氮化合物代谢的关键过程。这种酶活性是精氨酸分解代谢途径的关键步骤，有助于产生胍丁胺，一种具有多种生理功能的生物胺。参考文献强调了 SPEA 在胍丁胺合成中的作用，阐明了其在细胞氮代谢中的重要性以及胍丁胺在各种生物过程中的更广泛影响。

E.coli

E. coli

N-His

P21170 (3D-656E)

947432  [NCBI]

DDMSMGLPSSAGEHGVLRSMQEVAMSSQEASKMLRTYNIAWWGNNYYDVNELGHISVCPDPDVPEARVDLAQLVKTREAQGQRLPALFCFPQILQHRLRSINAAFKRARESYGYNGDYFLVYPIKVNQHRRVIESLIHSGEPLGLEAGSKAELMAVLAHAGMTRSVIVCNGYKDREYIRLALIGEKMGHKVYLVIEKMSEIAIVLDEAERLNVVPRLGVRARLASQGSGKWQSSGGEKSKFGLAATQVLQLVETLREAGRLDSLQLLHFHLGSQMANIRDIATGVRESARFYVELHKLGVNIQCFDVGGGLGVDYEGTRSQSDCSVNYGLNEYANNIIWAIGDACEENGLPHPTVITESGRAVTAHHTVLVSNIIGVERNEYTVPTAPAEDAPRALQSMWETWQEMHEPGTRRSLREWLHDSQMDLHDIHIGYSSGIFSLQERAWAEQLYLSMCHEVQKQLDPQNRAHRPIIDELQERMADKMYVNFSLFQSMPDAWGIDQLFPVLPLEGLDQVPERRAVLLDITCDSDGAIDHYIDGDGIATTMPMPEYDPENPPMLGFFMVGAYQEILGNMHNLFGDTEAVDVFVFPDGSVEVELSDEGDTVADMLQYVQLDPKTLLTQFRDQVKKTDLDAELQQQFLEEFEAGLYGYTYLE

Approximately 77.4 kDa

Greater than 90% as determined by reducing SDS-PAGE.

无菌粉末.

Lyophilized after extensive dialysis against solution in 20 mM Tris-HCl, 0.5 M NaCl, 6% Trehalose, pH 8.0.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O.

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.