SPEB Protein, Streptococcus pyogenes (His-SUMO)
SPEB Protein, Streptococcus pyogenes (His-SUMO) is the recombinant SPEB protein, expressed by E. coli, with N-6*His & N-SUMO tag.
- Species: Others
- Source: E. coli
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Storage:Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
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Biological Activity
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Technical Parameters
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Product Properties
- Documentation
- Help & FAQs
Biological Activity
SPEB Protein, Streptococcus pyogenes (His-SUMO) is the recombinant SPEB protein, expressed by E. coli, with N-6*His & N-SUMO tag.
SPEB, or agmatine ureohydrolase, is an enzyme that catalyzes the formation of putrescine from agmatine. This enzymatic reaction is a crucial step in the biosynthetic pathway of polyamines. Putrescine is a diamine that serves as a precursor for the synthesis of higher polyamines, such as spermidine and spermine, which are essential for various cellular processes, including cell growth, differentiation, and nucleic acid stabilization. By converting agmatine into putrescine, SPEB plays a central role in regulating polyamine levels, influencing cellular functions critical for growth and development. It has to succinctly outline SPEB's specific catalytic activity in the biosynthesis of putrescine, emphasizing its importance in the polyamine metabolic pathway.
Technical Parameters
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Species Others
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Source E. coli
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Tag N-6*His;N-SUMO
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Accession
P0C0J0 (Q146-P398)
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Gene ID69901512
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Molecular Construction
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N-term
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6*His
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SUMO
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SPEB (Q146-P398)
Accession # P0C0J0 -
C-term
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Protein Length
Full Length of Mature Protein
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Synonyms
Streptopain; EC:3.4.22.10; Exotoxin type B; Group A streptococcal cysteine protease; Streptococcal cysteine proteinase; Streptococcal cysteine proteinase; SPE B; Streptococcus peptidase A; SPP; speB
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AA Sequence
QPVVKSLLDSKGIHYNQGNPYNLLTPVIEKVKPGEQSFVGQHAATGCVATATAQIMKYHNYPNKGLKDYTYTLSSNNPYFNHPKNLFAAISTRQYNWNNILPTYSGRESNVQKMAISELMADVGISVDMDYGPSSGSAGSSRVQRALKENFGYNQSVHQINRSDFSKQDWEAQIDKELSQNQPVYYQGVGKVGGHAFVIDGADGRNFYHVNWGWGGVSDGFFRLDALNPSALGTGGGAGGFNGYQSAVVGIKP
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Predicted Molecular Mass
43.6 kDa
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Purity
≥ 90%, as determined by reducing SDS-PAGE.
Product Properties
Lyophilized powder.
<1 EU/μg, determined by LAL method.
It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).
Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
Room temperature in continental US; may vary elsewhere.
Documentation
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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