UBA5 (ubiquitin-like modifier activating enzyme 5) belongs to the ubiquitin-activating E1 family and UBA5 subfamily. Ubiquitin and ubiquitin-like proteins are known to be covalently conjugated to a variety of cellular substrates via a three-step enzymatic pathway. The ubiquitin-activating enzyme (E1) plays a key role in the first step of ubiquitination pathway to activate ubiquitin or ubiquitin-like proteins. UBA5 had been proved to activate an ubiquitin-like protein, ubiquitin-fold modifier 1 (Ufm1), by forming a high-energy thioester bond. It localizes mainly in cytoplasm, while it mainly localizes to the nucleus in presence of SUMO2. Recombinant protein corresponding to aa1-404 from human UBA5, fused to His-tag at N-terminal expressed in E. coli. Molecular Weight: ~47.4kD(428aa) Amino Acid Sequence: MGSSHHHHHH SSGLVPRGSH MGSHMAESVE RLQQRVQELE RELAQERSLQ VPRSGDGGGG RVRIEKMSSE VVDSNPYSRL MALKRMGIVS DYEKIRTFAV AIVGVGGVGS VTAEMLTRCG IGKLLLFDYD KVELANMNRL FFQPHQAGLS KVQAAEHTLR NINPDVLFEV HNYNITTVEN FQHFMDRISN GGLEEGKPVD LVLSCVDNFE ARMTINTACN ELGQTWMESG VSENAVSGHI QLIIPGESAC FACAPPLVVA ANIDEKTLKR EGVCAASLPT TMGVVAGILV QNVLKFLLNF GTVSFYLGYN AMQDFFPTMS MKPNPQCDDR NCRKQQEEYK KKVAALPKQE VIQEEEEIIH EDNEWGIELV SEVSEEELKN FSGPVPDLPE GITVAYTIPK KQEDSVTELT VEDSGESLED LMAKMKNM 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.
