All Photos(2)
Synonym(s):
Guanidinobiotin, Hexahydro-2-imino-1H-thieno[3,4-d]imidazole-4-pentanoic acid
Empirical Formula (Hill Notation):
C10H17N3O2S
CAS Number:
Molecular Weight:
243.33
Beilstein:
18952
MDL number:
UNSPSC Code:
12352203
PubChem Substance ID:
NACRES:
NA.46
Recommended Products
biological source
synthetic (organic)
Quality Level
Assay
≥98% (TLC)
form
powder
solubility
1 M HCl: 50 mg/mL, clear, colorless
storage temp.
2-8°C
SMILES string
[H][C@]12CS[C@@H](CCCCC(O)=O)[C@@]1([H])NC(=N)N2
InChI
1S/C10H17N3O2S/c11-10-12-6-5-16-7(9(6)13-10)3-1-2-4-8(14)15/h6-7,9H,1-5H2,(H,14,15)(H3,11,12,13)/t6-,7-,9-/m0/s1
InChI key
WWVANQJRLPIHNS-ZKWXMUAHSA-N
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General description
2-Iminobiotin is a cyclic guanidino analog of biotin that has high affinity for avidin at high pH (>9) and low affinity at low pH (<6). The proteins that are iminobiotinylated are selectively contained within the avidin column at pH 9 to 11 and may be eluted at pH 4 or by the addition of biotin. This technique may be very useful in the study of cell surface proteins by labeling and selectively recovering the components that are periodate-sensitive from intact human erythrocyte surface. 2-Iminobiotin reversibly inhibits NOS (nitric oxide synthases) via its guanidino group. It inhibits NO biosynthesis and may be important to understand the binding-site interactions for this important class of enzymes. NOS oxidizes the guanidino-nitrogen of L-arginine to produce nitric oxide and L-citrulline.
Application
2-Iminobiotin has been used as a competitive inhibitor to bind to biotic binding sites on streptavidin in order to restore fluorescence signal.
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
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Cacha Peeters-Scholte et al.
Experimental brain research, 147(2), 200-208 (2002-11-01)
The purpose of this study was to investigate whether combined inhibition of neuronal and inducible nitric oxide synthase (NOS) by 2-iminobiotin, free radical scavenging by allopurinol, and non-protein-bound iron chelation with deferoxamine improved cerebral oxygenation, electrocortical brain activity, and brain
F Garret-Flaudy et al.
Biotechnology and bioengineering, 71(3), 223-234 (2001-04-06)
Affinity precipitation, especially secondary effect affinity precipitation, has repeatedly been suggested as a valuable technique for the biotechnical downstream process. The present lack of applications is related to the scarcity of predictable affinity macroligands and to the fact that rather
J Clarkson et al.
Biopolymers, 62(6), 307-314 (2002-02-22)
UV resonance Raman (UVRR) spectroscopy is used to study the binding of biotin and 2-iminobiotin by streptavidin, and the results are compared to those previously obtained from the avidin-biotin complex and new data from the avidin-2-iminobiotin complex. UVRR difference spectroscopy
Hiroyuki Inoue et al.
Langmuir : the ACS journal of surfaces and colloids, 21(18), 8354-8359 (2005-08-24)
Layered thin films composed of avidin and 2-iminobiotin-labeled poly(ethyleneimine) (ib-PEI) were prepared by a layer-by-layer deposition of avidin and ib-PEI on a solid surface, and the disintegration induced by changing environmental pH and adding biotin in the solution was studied.
Amesh B Patel et al.
Journal of the American Chemical Society, 126(5), 1318-1319 (2004-02-05)
The strength of a multimolecular system depends on the number of interactions that hold it together. Using dynamic force spectroscopy, we show how the kinetic stability of a system decreases as the number of molecular bonds is increased, as predicted
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