FK506结合蛋白1B(FKBP1B)重组蛋白

FK506结合蛋白1B(FKBP1B)重组蛋白

Recombinant FK506 Binding Protein 1B (FKBP1B)

FKBP12.6; FKBP1L; FKBP9; OTK4; PKBP1L; Rotamase; 12.6 kDa FK506-binding protein; Immunophilin FKBP12.6; Peptidyl-prolyl cis-trans isomerase FKBP1B

[ PROPERTIES ]

Residues: Gly2~Glu108 (Accession # P68106),

with N-terminal His-Tag.

Host: E. coli

Subcellular Location: Cytoplasm. Sarcoplasmic

reticulum.

Purity: >95%

Endotoxin Level: <1.0EU per 1μg

(determined by the LAL method).

Formulation: Supplied as lyophilized form in PBS,

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

Predicted isoelectric point: 7.9

Predicted Molecular Mass: 13.2kDa

Accurate Molecular Mass: 17kDa as determined by SDS-PAGE reducing conditions.

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

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

Note: The possible reasons that the actual band size differs from the predicted are as follows:

1. Splice variants: Alternative splicing may create different sized proteins from the same gene.

2. Relative charge: The composition of amino acids may affects the charge of the protein.

3. Post-translational modification: Phosphorylation, glycosylation, methylation etc.

4. Post-translation cleavage: Many proteins are synthesized as pro-proteins, and then cleaved to

give the active form.

5. Polymerization of the target protein: Dimerization, multimerization etc.

[ 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 N-terminal His-Tag, its sequence is listed below.

MGHHHHHHSGSEF-GVEIETISP GDGRTFPKKG QTCVVHYTGM LQNGKKFDSSRDRNKPFKFR IGKQEVIKGF EEGAAQMSLG QRAKLTCTPD VAYGATGHPG VIPPNATLIFDVELLNLE

[ REFERENCES ]

1. Arakawa H., et al. (1994) Biochem. Biophys. Res. Commun. 200:836-843. 

2. Lam E., et al. (1995) J. Biol. Chem. 270:26511-26522. 

3. Nakazawa T., et al. (2005) Gene 360:55-64. 

4. Marx S.O., et al. (2000) Cell 101:365-376

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