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

YBB983Ra01 50µg

Recombinant Microtubule Associated Protein Tau (MAPt)

Organism Species: Rattus norvegicus (Rat)

Instruction manual

FOR IN VITRO USE AND RESEARCH USE ONLY

NOT FOR USE IN CLINICAL DIAGNOSTIC PROCEDURES

9th Edition (Revised in Jul, 2013)

[ PROPERTIES ]

Residues: Ala34~Ser368 (Accession # P19332), with two N-terminal Tags, His-tag and T7-tag.

Host: E. coli

Subcellular Location: Cytoplasm, cytosol. Cell membrane; Peripheral membrane protein; Cytoplasmic side. Cytoskeleton. Cell projection, axon.

Purity: >95%

Endotoxin Level: <1.0EU per 1μg (determined by the LAL method).

Formulation: Supplied as lyophilized form in 20mM Tris, 500mM NaCl, pH8.0, containing 1mM EDTA, 1mM DTT, 0.01% sarcosyl, 5% trehalose, and preservative.

Predicted isoelectric point: 9.9 Predicted Molecular Mass: 38.5kDa

Accurate Molecular Mass: 48kDa 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:

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 ddH2O.

[ 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 target protein. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37oC for 48h, and no obvious degradation and precipitation were observed. (Referring from China Biological Products Standard, which was calculated by the Arrhenius equation.) The loss of this protein is less than 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, its sequence is listed below.

MGSSHHHHHH SSGLVPRGSH MASMTGGQQM GRGSEF- AEEAGIG DTPNMEDQAA

GHVTQARVAG VSKDRTGNDE KKAKGADGKT GAKIATPRGA ATPGQKGTSN ATRIPAKTTP

SPKTPPGSGE PPKSGERSGY SSPGSPGTPG SRSRTPSLPT PPTREPKKVA VVRTPPKSPS

ASKSRLQTAP VPMPDLKNVR SKIGSTENLK HQPGGGKVQI INKKLDLSNV QSKCGSKDNI

KHVPGGGSVH IVYKPVDLSK VTSKCGSLGN IHHKPGGGQV EVKSEKLDFK DRVQSKIGSL

DNITHVPGGG NKKIETHKLT FRENAKAKTD HGAEIVYKSP VVSGDTSPRH LSNVSSTGSI

DMVDSPQLAT LADEVSAS

[ REFERENCES ]

1.Goedert M., et al. (1992) Proc. Natl. Acad. Sci. U.S.A. 89:1983-1987.

2.Georgieff I.S., et al. (1993) J. Cell Sci. 105:729-737.

3.Sadot E., et al. (1994) J. Mol. Biol. 241:325-331.

4.Kosik K.S., et al. (1989) Neuron 2:1389-1397.

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