Squamous cell carcinoma antigen recognized by T-cells 3 (SART3), partial, human, recombinant

Organism: Homo sapiens (Human). Source: E.coli. Expression Region: 600-900aa. Protein Length: Partial. Tag Info: N-terminal 6xHis-SUMO-tagged. Target Protein Sequence: QRKRARAEKK ALKKKKKIRG PEKRGADEDD EKEWGDDEEE QPSKRRRVEN SIPAAGETQN VEVAAGPAGK CAAVDVEPPS KQKEKAASLK RDMPKVLHDS SKDSITVFVS NLPYSMQEPD TKLRPLFEAC GEVVQIRPIF SNRGDFRGYC YVEFKEEKSA LQALEMDRKS VEGRPMFVSP CVDKSKNPDF KVFRYSTSLE KHKLFISGLP FSCTKEELEE ICKAHGTVKD LRLVTNRAGK PKGLAYVEYE NESQASQAVM KMDGMTIKEN IIKVAISNPP QRKVPEKPET RKAPGGPMLL P. Purity: Greater than 90% as determined by SDS-PAGE. Endotoxin: Not test. Biological Activity: n/a. Form: Liquid or Lyophilized powder. Buffer: If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0. Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20 °C/-80 °C. Our default final concentration of glycerol is 50%. Customers could use it as reference. Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20 °C/-80 °C. The shelf life of lyophilized form is 12 months at -20 °C/-80 °C. Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4 °C for up to one week. Relevance: U6 snRNP-binding protein that functions as a recycling factor of the splicing machinery. Promotes the initial reassbly of U4 and U6 snRNPs following their ejection from the spliceosome during its maturation . Also binds U6atac snRNPs and may function as a recycling factor for U4atac/U6atac spliceosomal snRNP, an initial step in the assbly of U12-type spliceosomal complex. The U12-type spliceosomal complex plays a role in the splicing of introns with non-canonical splice sites . May also function as a substrate-targeting factor for deubiquitinases like USP4 and USP15. Recruits USP4 to ubiquitinated PRPF3 within the U4/U5/U6 tri-snRNP complex, promoting PRPF3 deubiquitination and thereby regulating the spliceosome U4/U5/U6 tri-snRNP spliceosomal complex disassbly . May also recruit the deubiquitinase USP15 to histone H2B and mediate histone deubiquitination, thereby regulating gene expression and/or DNA repair . May play a role in hatopoiesis probably through transcription regulation of specific genes including MYC . Reference: Targeting of U4/U6 small nuclear RNP assembly factor SART3/p110 to Cajal bodies.Stanek D., Rader S.D., Klingauf M., Neugebauer K.M.J. Cell Biol. 160:505-516(2003). Function: U6 snRNP-binding protein that functions as a recycling factor of the splicing machinery. Promotes the initial reassembly of U4 and U6 snRNPs following their ejection from the spliceosome during its maturation