Introduction
Carboxylesterase 1D (CES1D) belongs to a large family of carboxylesterases that hydrolyze ester and amide bonds. It is a primary lipase found in white adipose tissue fat cake extracts. Partially purified CES1D from white adipose tissue exhibits lipase activity and, to a lesser extent, neutral cholesteryl ester hydrolase activity. CES1D shows limited efficiency in hydrolyzing CPT-11, a camptothecin prodrug used in cancer treatment.
Description
Recombinant Mouse CES1D, expressed in Sf9 Baculovirus cells, is a single, glycosylated polypeptide chain. It consists of 555 amino acids (19-565 a.a), has a molecular mass of 60.9kDa, and appears at approximately 50-70kDa on SDS-PAGE due to glycosylation. The protein is purified using proprietary chromatographic techniques and includes an 8 amino acid His-tag at the C-terminus.
Physical Appearance
Sterile, colorless solution.
Formulation
The CES1D protein solution (0.5mg/ml) is supplied in Phosphate Buffered Saline (pH 7.4) with 10% glycerol.
Stability
For short-term storage (2-4 weeks), store at 4°C. For extended periods, store frozen at -20°C. Adding a carrier protein (0.1% HSA or BSA) is recommended for long-term storage. Avoid repeated freeze-thaw cycles.
Purity
Purity exceeds 90.0% as determined by SDS-PAGE analysis.
Biological Activity
The specific activity is greater than 80,000 pmol/min/ug. This is defined as the amount of enzyme required to hydrolyze 1 pmole of p-nitrophenyl acetate to p-nitrophenol per minute at pH 7.5 and 37°C.
Synonyms
Carboxylesterase 1D, Carboxylesterase 3 (EC:3.1.1.1, EC:3.1.1.67), Fatty acid ethyl ester synthase, FAEE synthase, Triacylglycerol hydrolase, TGH, CES1D.
Source
Sf9,
Baculovirus cells.
Amino Acid Sequence
YPSSPPVVNT VKGKVLGKYV NLEGFTQPVA VFLGVPFAKP PLGSLRFAPP QPAEPWSFVK NTTSYPPMCS QDAVGGQVLS ELFTNRKENI PLQFSEDCLY LNIYTPADLT KNSRLPVMVW IHGGGLVVGG ASTYDGLALS AHENVVVVTI QYRLGIWGFF STGDEHSRGN WGHLDQVAAL
RWVQDNIANF GGNPGSVTIF GESAGGFSVS VLVLSPLAKN LFHRAISESG VSLTAALITT DVKPIAGLVA TLSGCKTTTS AVMVHCLRQK TEDELLETSL KLNLFKLDLL GNPKESYPFL PTVIDGVVLP KAPEEILAEK SFSTVPYIVG INKQEFGWII PTLMGYPLAE GKLDQKTANS
LLWKSYPTLK ISENMIPVVA EKYLGGTDDL TKKKDLFQDL MADVVFGVPS VIVSRSHRDA GASTYMYEFE YRPSFVSAMR PKAVIGDHGD EIFSVFGSPF LKDGASEEET NLSKMVMKFW ANFARNGNPN GGGLPHWPEY DQKEGYLKIG ASTQAAQRLK DKEVSFWAEL RAKESAQRPS
HREHVELLEH HHHHH.