The target protein is fused with two N-terminal Tags, His-tag and GST-tag, its sequence is listed below.
MRNKKFELGL EFPNLPYYID GDVKLTQSMA IIRYIADKHN MLGGCPKERA EISMLEGAVL DIRYGVSRIA YSKDFETLKV DFLSKLPEML KMFEDRLCHK TYLNGDHVTH PDFMLYDALD VVLYMDPMCL DAFPKLVCFK KRIEAIPQID KYLKSSKYIA  CD5CD5抗原样蛋白(CD5L)重组蛋白WPLQGWQATF GGGDHPPKSD GSTSGSGHHH HHHSAGLVPR GSTAIGMKET AAAKFERQHM DSPDLGTLEV LFQGPLGSEF-ESPTKVQLV GGAHRCEGRV EVEHNGQWGT VCDDGWDRRD VAVVCRELNC GAVIQTPRGA SYQPPASEQR VLIQGVDCNG TEDTLAQCEL NYDVFDCSHE EDAGAQCENP DSDLLFIPED VRLVDGPGHC QGRVEVLHQS QWSTVCKAGW NLQVSKVVCR QLGCGRALLT YGSCNKNTQG KGPIWMGKMS CSGQEANLRS CLLSRLENNC THGEDTWMEC EDPFELKLVG GDTPCSGRLE VLHKGSWGSV CDDNWGEKED QVVCKQLGCG KSLHPSPKTR KIYGPGAGRI WLDDVNCSGK EQSLEFCRHR LWGYHDCTHK EDVEVICTDF DV

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

Storage: Avoid repeated freeze/thaw cycles. Store at 2-8^oC for one month. Aliquot and store at -80^oC 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 37^oC 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.