白细胞弹性蛋白酶抑制因子(LEI)重组蛋白

白细胞弹性蛋白酶抑制因子(LEI)重组蛋白

Recombinant Leukocyte Elastase Inhibitor (LEI)

SERPINB1; EI; ELANH2; LEI; M/NEI; MNEI; PI2; Serpin Peptidase Inhibitor Clade B Member 1; Anti-Elastase; Monocyte/Neutrophil Elastase Inhibitor

[ PROPERTIES ]

Residues: His17~Glu332 (Accession # Q4G075),

with two N-terminal Tags, His-tag and T7-tag. Host: E. coli

Subcellular Location: Cytoplasm.

Purity: >95%

Endotoxin Level: <1.0EU per 1μg

(determined by the LAL method).

Formulation: Supplied as lyophilized form in PBS,

pH7.4, containing 5% trehalose, 0.01% sarcosyl.

Predicted isoelectric point: 7.3

Predicted Molecular Mass: 40.5kDa

Applications: SDS-PAGE; WB; ELISA; IP.

(May be suitable for use in other assays to be determined by the end user.)

[ USAGE ]

Reconstitute in sterile PBS, pH7.2-pH7.4.

[ STORAGE AND STABILITY ]

Storage: Avoid repeated freeze/thaw cycles.

Store at 2-8oC for one month.

Aliquot and store at -80oC for 12 months.

Stability Test: The thermal stability is described by the loss rate of the targetprotein. The loss rate was determined by accelerated thermal degradation test,that is, incubate the protein at 37oC for 48h, and no obvious degradation andprecipitation were observed. (Referring from China Biological Products Standard,which was calculated by the Arrhenius equation.) The loss of this protein is lessthan 5% within the expiration date under appropriate storage condition.

[ SEQUENCES ]

The target protein is fused with two N-terminal Tags, His-tag and T7-tag, itssequence is listed below.

MGSSHHHHHH SSGLVPRGSH MASMTGGQQM GRGSEFELRR QAC- HTLS ESSPTGNIFFSPFSISSALA MVFLGTKGTT AAQLSKTFHF DSVEDVHSRF QSLNAEVSKR GASHTLKLANRLYGEKTYNF LPEFLTSTQK MYGADLAPVD FQHASEDARK EINQWVKGQT EGKIPELLAVGVVDSMTKLV LVNAIYFKGM WEEKFMKQDT TDAPFRLNKK NTKSVKMMYQ KKKFFFGYISDLKCKVLEMP YQGGELSMVI LLPEDIEDES TGLKKIEEQI TLEKLREWTK RENLENIDVH

VKLPRFKIEE SYILNSNLGR LGLQDLFNSS KADLSGMSGS RDLFISKIVH KAFVEVNEEG TE

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