Carboxypeptidase-B

• Description:

  Proteases (also called Proteolytic Enzymes, Peptidases, or Proteinases) are enzymes that hydrolyze the amide bonds within proteins or peptides. Most proteases act in a specific manner, hydrolyzing bonds at or adjacent to specific residues or a specific sequence of residues contained within the substrate protein or peptide. Proteases play an important role in most diseases and biological processes including prenatal and postnatal development, reproduction, signal transduction, the immune response, various autoimmune and degenerative diseases, and cancer. They are also an important research tool, frequently used in the analysis and production of proteins. Carboxypeptidase-B sequentially cleaves C terminal K and R residues. Recombinant rat Carboxypeptidase-B is a 35.1 kDa protein consisting of 307 amino acids.

• Synonyms:

  Cpb1; Cpb

• NCBI Gene ID:

  24271

• UniProt:

  P19223

• Accession Number:

  NP_036665.1

• Accession Number mRNA:

  NM_012533.1

• Reactivity:

  Rat

• Cross Reactivity:

  Rat

• Sequence:

  ASGHSYTKYN NWETIEAWIQ QVATDNPDLV TQSVIGTTFE GRNMYVLKIG KTRPNKPAIF IDCGFHAREW ISPAFCQWFV REAVRTYNQE IHMKQLLDEL DFYVLPVVNI DGYVYTWTKD RMWRKTRSTM AGSSCLGVDP NRNFNAGWCE VGASRSPCSE TYCGPAPESE KETKALADFI RNNLSTIKAY LTIHSYSQMM LYPYSYDYKL PENYEELNAL VKGAAKELAT LHGTKYTYGP GATTIYPAAG GSDDWSYDQG IKYSFTFELR DTGFFGFLLP ESQIRQTCEE TMLAVKYIAN YVREHLY

• Assay Protocol:

  Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer (e.g. PBS) containing a carrier protein (e.g. 0.1% BSA) and store in working aliquots at -20°C to -80°C.

• Endotoxin:

  < 0.1 ng/µg of protein (< 1EU/µg)

• Purity:

  >95% by SDS-PAGE & HPLC analysis

• Bioactivity:

  Carboxypeptidase-B sequentially cleaves C terminal K and R residues.

• Length:

  307

• Form:

  Lyophilized

• Buffer:

  20mM Tris, pH 8.0 + 50mM NaCl

• Reconstitution:

  Water

• Molecular Weight:

  35.1 kDa

• Storage Conditions:

  The lyophilized protein is stable at room temperature for 1 month and at 4°C for 6 months. Reconstituted working aliquots are stable for 1 week at 2°C to 8°C and for 3 months at -20°C to -80°C.

• Host or Source:

  E. coli