Recombinant Escherichia coli RPSD Protein (30S) (2-206 aa), His-tagged

• Cat.No.: RPSD-1226E
• Product Overview: Recombinant Escherichia coli (strain K12) RPSD Protein (30S) (2-206 aa) is produced by E. coli expression system. This protein is fused with a 6xHis tag at the N-terminal. Protein Description: Full Length of Mature Protein.

Specification

• Description: One of two assbly initiator proteins for the 30S subunit, it binds directly to 16S rRNA where it nucleates assbly of the body of the 30S subunit.With S5 and S12 plays an important role in translational accuracy; many suppressors of streptomycin-dependent mutants of protein S12 are found in this protein, some but not all of which decrease translational accuracy (ram, ribosomal ambiguity mutations).Plays a role in mRNA unwinding by the ribosome, possibly by forming part of a processivity clamp.Protein S4 is also a translational repressor protein, it controls the translation of the alpha-operon (which codes for S13, S11, S4, RNA polymerase alpha subunit, and L17) by binding to its mRNA.Also functions as a rho-dependent antiterminator of rRNA transcription, increasing the synthesis of rRNA under conditions of excess protein, allowing a more rapid return to homeostasis. Binds directly to RNA polymerase.
• Source: E. coli
• Species: E. coli
• Tag: His
• Form: Tris-based buffer,50% glycerol
• Molecular Mass: 27.3 kDa
• Protein length: 2-206 aa
• AA Sequence: ARYLGPKLKLSRREGTDLFLKSGVR AIDTKCKIEQAPGQHGARKPRLSDY GVQLREKQKVRRIYGVLERQFRNYY KEAARLKGNTGENLLALLEGRLDNV VYRMGFGATRAEARQLVSHKAIMVN GRVVNIASYQVSPNDVVSIREKAKK QSRVKAALELAEQREKPTWLEVDAG KMEGTFKRKPERSDLSADINEHLIV ELYSK
• Purity: > 90% as determined by SDS-PAGE.
• Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4 centigrade for up to one week.
• 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 centigrade/-80 centigrade. The shelf life of lyophilized form is 12 months at -20 centigrade/-80 centigrade.
• Concentration: A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.

Gene Information

• Gene Name: rpsD 30S ribosomal subunit protein S4 [ Escherichia coli str. K-12 substr. MG1655 ]
• Official Symbol: RPSD
• Synonyms: ECK3283; ramA; sud(2); sud2
• Gene ID: 947793
• Protein Refseq: NP_417755
• UniProt ID: P0A7V8