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Our customer service representatives are available 24 hours, Monday through Friday to assist you.| Introduction | P4HB is a multifunctional and highly abundant enzyme that is part of the protein disulfide isomerase family. When present as a tetramer consisting of two alpha and two beta subunits, P4HB has a role in hydroxylation of prolyl residues in preprocollagen. P4HB is a disulfide isomerase containing two thioredoxin domains that catalyze the formation, breakage and rearrangement of disulfide bonds. | 
| Synonyms | P4Hbeta, PDI, PDIA1, PHD, PO4DB, PO4HB, ERBA2L. | 
| Source | Escherichia Coli. | 
| Physical Appearance | Sterile Filtered colorless solution. | 
| Formulation | The P4HB 1mg/ml protein solution contains 20mM Tris-HCl pH-8, and 10% glycerol. | 
| Stability | P4HB althoµgh stable 4°C for 4 weeks, should be stored desiccated below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles. | 
| Amino Acid Sequence | MGSSHHHHHH SSGLVPRGSH MDAPEEEDHV LVLRKSNFAE ALAAHKYLLV EFYAPWCGHC KALAPEYAKA AGKLKAEGSE IRLAKVDATEESDLAQQYGV RGYPTIKFFR NGDTASPKEY TAGREADDIV NWLKKRTGPA ATTLPDGAAA ESLVESSEVA VIGFFKDVES DSAKQFLQAA EAIDDIPFGI TSNSDVFSKY QLDKDGVVLF KKFDEGRNNF EGEVTKENLL DFI  | 
| Purity | Greater than 90.0% as determined by SDS-PAGE. | 
| Usage | NeoBiolab''s products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drµgs, agricultural or pesticidal products, food additives or household chemicals. | 
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