Basic Information |
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Product Name: | AVIDIN |
CAS: | 1405-69-2 |
English Synonyms: | AVIDIN FROM EGG WHITE ; AVIDIN, EGG WHITE ; AVIDIN, HEN EGG WHITE ; AVIDIN |
MDL Number.: | MFCD00130572 |
H bond acceptor: | 0 |
H bond donor: | 0 |
InChi: | InChI=1S// |
InChiKey: | InChIKey=MOSFIJXAXDLOML-UHFFFAOYSA-N |
Property |
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Comments: | A CONVENIENT, ACCURATE METHOD FOR DETERMINING THE DEGREE OF BIOTINYLATION APPLICATIONS: BLOCKING PROTEIN FOR BIOTIN-RICH TISSUE SECTIONS (USE AT 0.1% FOR INHIBITION OF ENDOGENOUS BIOTIN) APPLICATIONS: IMMUNOASSAY REAGENT WHEN BOUND TO BIOTINYLATED ENZYMES OR WHEN CONJUGATED TO ENZYMES COMMENT 1: DETERMINE THE MOLAR RATIO OF BIOTIN INCORPORATED INTO A PROTEIN USING THE HABA-AVIDIN METHOD COMMENT 2: THE HABA DYE (2-HYDROXYAZOBENZENE-4'-CARBOXYLIC ACID) BINDS TO AVIDIN TO PRODUCE A YELLOW-ORANGE COLORED COMPLEX THAT ABSORBS AT 500 NM COMMENT 3: FREE BIOTIN PRESENT IN SOLUTION WITH THIS AVIDIN-HABA COMPLEX WILL DISPLACE THE HABA DYE AND CAUSE THE ABSORBANCE TO DECREASE COMMENT 4: A STANDARD CURVE CAN BE ESTABLISHED USING THE FREE BIOTIN TO ESTIMATE THE NUMBER OF MOLES OF BIOTIN INCORPORATED AFTER BIOTINYLATING A PROTEIN ECONOMICALLY PRICED IN JUMBO QUANTITIES FEATURES/BENEFITS: AMOUNT OF AVIDIN CAN BE CALCULATED DIRECTLY FROM THE INCREASED ABSORBANCE AT 500 NM COMPLEXING WITH THE HABA DYE FEATURES/BENEFITS: AVIDIN IS A GLYCOPROTEIN PURIFIED FROM CHICKEN EGG WHITE AND HAS AN IP OF 10.5 FEATURES/BENEFITS: HABA-AVIDIN COMPLEX CAN BE USED OVER A WIDE RANGE OF PH AND SALT CONCENTRATIONS FEATURES/BENEFITS: HEN EGG WHITE GLYCOPROTEIN, AFFINITY-PURIFIED, SALT-FREE, LYOPHILIZED POWDER FEATURES/BENEFITS: ISOELECTRIC POINT OF 10-10.5 FEATURES/BENEFITS: LOWER NOISE LEVEL (LESS NONSPECIFIC BINDING) THAN AVIDIN IN DETECTION SYSTEMS FEATURES/BENEFITS: PURIFIED OVER AN AFFINITY COLUMN TO ASSURE THE INTEGRITY OF THE FOUR BIOTIN-BINDING SITES FEATURES/BENEFITS: STABLE OVER A WIDE RANGE OF PH VALUES AND TEMPERATURE RANGES GUANIDINE HYDROCHLORIDE WILL DISSOCIATE AVIDIN AND STREPTAVIDIN INTO SUBUNITS, BUT STREPTAVIDIN IS MORE RESISTANT TO DISSOCIATION IMMUNOPURE(R) STREPTAVIDIN PRODUCTS ARE AFFINITY-PURIFIED AND HAVE A SPECIFIC ACTIVITY GREATER THAN 12 UNITS/MG LOWER NONSPECIFIC BINDING THAN AVIDIN NOTE: 1 UNIT OF BIOTIN BINDING EQUALS 1 MICROMOLE OF BIOTIN PIERCE OFFERS STREPTAVIDIN PRODUCTS THAT PRODUCE HIGH-QUALITY RESULTS STREPTAVIDIN IS ALSO A TETRAMERIC PROTEIN, AND EACH SUBUNIT BINDS ONE MOLECULE OF BIOTIN STREPTAVIDIN IS MUCH LESS SOLUBLE IN WATER THAN AVIDIN AND CAN BE CRYSTALLIZED FROM WATER OR 50% ISOPROPANOL UNLIKE AVIDIN (MW 67,000), STREPTAVIDIN HAS NO CARBOHYDRATE AND HAS AN ACIDIC ISOELECTRIC POINT OF 5 |
Specification: | IMMUNOPURE(R) |
Information: | MOLECULAR MASS OF 67,000-68,000 DALTONS |
Safety information |
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Safe Code: | S:22,24/25 |
WGK Germany: | 3 |
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