Recombinant Escherichia coli Exopolyphosphatase (ppx) | CSB-EP365319ENV

Recombinant Escherichia coli Exopolyphosphatase (ppx) | CSB-EP365319ENV | Cusabio

Alternative Name(s): Metaphosphatase

Gene Names: ppx

Research Areas: Microbiology

Organism: Escherichia coli (strain K12)

AA Sequence: PIHDKSPRPQEFAAVDLGSNSFHMVIARVVDGAMQIIGRLKQRVHLADGLGPDNMLSEEAMTRGLNCLSLFAERLQGFSPASVCIVGTHTLRQALNATDFLKRAEKVIPYPIEIISGNEEARLIFMGVEHTQPEKGRKLVIDIGGGSTELVIGENFEPILVESRRMGCVSFAQLYFPGGVINKENFQRARMAAAQKLETLTWQFRIQGWNVAMGASGTIKAAHEVLMEMGEKDGIITPERLEKLVKEVLRHRNFASLSLPGLSEERKTVFVPGLAILCGVFDALAIRELRLSDGALREGVLYEMEGRFRHQDVRSRTASSLANQYHIDSEQARRVLDTTMQMYEQWREQQPKLAHPQLEALLRWAAMLHEVGLNINHSGLHRHSAYILQNSDLPGFNQEQQLMMATLVRYHRKAIKLDDLPRFTLFKKKQFLPLIQLLRLGVLLNNQRQATTTPPTLTLITDDSHWTLRFPHDWFSQNALVLLDLEKEQEYWEGVAGWRLKIEEESTPEIAA

Source: E.coli

Tag Info: N-terminal 6xHis-SUMO-tagged

Expression Region: 2-513aa

Sequence Info: Full Length of Mature Protein

MW: 74 kDa

Purity: Greater than 90% as determined by SDS-PAGE.

Relevance: Degradation of inorganic polyphosphates. Orthophosphate is released progressively from the ends of polyphosphate of circa 500 residues long, while chains of circa 15 residues compete poorly with polyphosphate as substrate.

Reference: "An exopolyphosphatase of Escherichia coli. The enzyme and its ppx gene in a polyphosphate operon."Akiyama M., Crooke E., Kornberg A.J. Biol. Chem. 268:633-639(1993)

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?/-80?. The shelf life of lyophilized form is 12 months at -20?/-80?.

Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4? for up to one week.

Function: Degradation of inorganic polyphosphates (polyP). Releases orthophosphate processively from the ends of the polyP chain. Has a strong preference for long-chain polyphosphates and has only weak affinity for smaller size polyP of about 15 residues.

Involvement in disease:

Subcellular Location: Cell membrane, Peripheral membrane protein

Protein Families: GppA/Ppx family

Tissue Specificity:

Paythway:

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?/-80?. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Uniprot ID: P0AFL6

HGNC Database Link: N/A

UniGene Database Link: N/A

KEGG Database Link: KEGG

STRING Database Link: STRING

OMIM Database Link: N/A