Name :
Recombinant Human FABP4/A-FABP Protein (29 Ala/Thr, His Tag)

Biological Activity :

Background :
Fatty acid-binding protein, adipocyte, also known as Adipocyte-type fatty acid-binding protein, Fatty acid-binding protein 4, Adipocyte lipid-binding protein, and FABP4, is a cytoplasm protein which belongs to thecalycin superfamily and Fatty-acid binding protein (FABP) family. In familial combined hyperlipidemia (FCHL), FABP4 correlated to body mass index (BMI), waist circumference and homeostasis model assessment (HOMA) index.FABP4 levels were associated with triglyceride-rich lipoproteins. In humans serum FABP4 levels correlate significantly with features of PCOS. It appears to be a determinant of atherogenic dyslipidemia. FABP4 pathway mediates the sebaceous gland hyperplasia in keratinocyte-specific Pten-null mice. FABP4 concentration significantly increased with an increasing of MS features and was strongly correlated with body-mass index, triglycerides, HDL-cholesterol concentrations and blood pressure. Patients in the highest quartile of FABP4 presented a six-fold increased odds ratio for MS and a three-fold increased odds for LD, adjusted by age, sex, body-mass index and the antiretroviral therapy. FABP4 is a strong plasma marker of metabolic disturbances in HIV-infected patients, and therefore, could serve to guide therapeutic intervention in this group of patients.

Biological Activity :
Testing in progress

Expression Host :
Human

Source :
E. coli

Tag :

Protein Accession No. :
P15090

NCBI Gene ID :

Synonyms :

Synonyms :
fatty acid binding protein 4, adipocyte

Amino Acid Sequence :

Molecular Weight :
The recombinant human FABP4 consisting of 142 amino acids and has a calculated molecular mass of 16 kDa. It migrates as an approximately 15 kDa band in SDS-PAGE under reducing conditions.

Purity :
> 95 % as determined by SDS-PAGE

State of Matter :

Product Concentration :

Storage and Stability :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.

Endotoxin Level :
Please contact us for more information.

Protein Construction :
A DNA sequence encoding the human FABP4 (P15090) (Cys 2-Ala 132) (29 Ala / Thr) was expressed, with a polyhistide tag at the N-terminus.

Buffer Solution :
Lyophilized from sterile 50mM Tris, 200mM NaCl, 10% glycerol, pH 8.2Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hardcopy of datasheet.

Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.

Redissolution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.

Synonyms :
A-FABP Protein, Human; AFABP Protein, Human; ALBP Protein, Human; aP2 Protein, Human; HEL-S-104 Protein, Human FABP4/A-FABP 背景信息 Fatty acid-binding protein, adipocyte, also known as Adipocyte-type fatty acid-binding protein, Fatty acid-binding protein 4, Adipocyte lipid-binding protein, and FABP4, is a cytoplasm protein which belongs to thecalycin superfamily and Fatty-acid binding protein (FABP) family. In familial combined hyperlipidemia (FCHL), FABP4 correlated to body mass index (BMI), waist circumference and homeostasis model assessment (HOMA) index.FABP4 levels were associated with triglyceride-rich lipoproteins. In humans serum FABP4 levels correlate significantly with features of PCOS. It appears to be a determinant of atherogenic dyslipidemia. FABP4 pathway mediates the sebaceous gland hyperplasia in keratinocyte-specific Pten-null mice. FABP4 concentration significantly increased with an increasing of MS features and was strongly correlated with body-mass index, triglycerides, HDL-cholesterol concentrations and blood pressure. Patients in the highest quartile of FABP4 presented a six-fold increased odds ratio for MS and a three-fold increased odds for LD, adjusted by age, sex, body-mass index and the antiretroviral therapy. FABP4 is a strong plasma marker of metabolic disturbances in HIV-infected patients, and therefore, could serve to guide therapeutic intervention in this group of patients.

References & Citations :
van Dongen,M.J. et al., 2002, J Am Chem Soc. 124 (40): 11874-80. Coll, B. et al., 2008, Atherosclerosis 199 (1):147-53. Hoashi,S. et al., 2008, BMC Genet. 9 :84. Cai,H. et al., 2010, Bioorg Med Chem Lett 20 (12):3675-9.

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