Cytokine-inducible SH2-containing protein (CISH), human, recombinant

Organism: Homo sapiens (Human). Source: E.coli. Expression Region: 1-258aa. Protein Length: Full Length. Tag Info: N-terminal GST-tagged. Target Protein Sequence: MVLCVQGPRP LLAVERTGQR PLWAPSLELP KPVMQPLPAG AFLEEVAEGT PAQTESEPKV LDPEEDLLCI AKTFSYLRES GWYWGSITAS EARQHLQKMP EGTFLVRDST HPSYLFTLSV KTTRGPTNVR IEYADSSFRL DSNCLSRPRI LAFPDVVSLV QHYVASCTAD TRSDSPDPAP TPALPMPKED APSDPALPAP PPATAVHLKL VQPFVRRSSA RSLQHLCRLV INRLVADVDC LPLPRRMADY LRQYPFQL. 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: SOCS family proteins form part of a classical negative feedback system that regulates cytokine signal transduction. CIS is involved in the negative regulation of cytokines that signal through the JAK-STAT5 pathway such as erythropoietin, prolactin and interleukin 3 (IL3) receptor. Inhibits STAT5 trans-activation by suppressing its tyrosine phosphorylation. May be a substrate-recognition component of a SCF-like ECS (Elongin BC-CUL2/5-SOCS-box protein) E3 ubiquitin-protein ligase complex which mediates the ubiquitination and subsequent proteasomal degradation of target proteins. Reference: "The human G18 is an ortholog of the rodent gene CIS-2 and is located in 3p21.3 and homozygously deleted in lung cancer." Wei M.-H., Minna J.D., Lerman M.I. Submitted (MAR-2000). Function: SOCS family proteins form part of a classical negative feedback system that regulates cytokine signal transduction. CIS is involved in the negative regulation of cytokines that signal through the JAK-STAT5 pathway such as erythropoietin, prolactin and interleukin 3 (IL3) receptor. Inhibits STAT5 trans-activation by suppressing its tyrosine phosphorylation. May be a substrate-recognition component of a SCF-like ECS (Elongin BC-CUL2/5-SOCS-box protein) E3 ubiquitin-protein ligase complex which mediates the ubiquitination and subsequent proteasomal degradation of target proteins (By similarity).