Recombinant Human Fatty-acid-binding Protein 2 (Human FABP2)_C230337

Description

Fatty acid binding protein-2 (FABP-2; also named I- or intestinal FABP) is a member of a large superfamily of lipid binding proteins that are expressed in a tissue specific manner. FABP-2 is one of nine cytoplasmic FABPs that are 14-15 kDa in size and range from 126-134 amino acids (aa) in length. Although all are highly conserved in their tertiary structure, there is only modest aa identity between any two members. Nevertheless, based on aa sequence, the nine FABP family members have been shown to form three subgroups, with FABP- 2/I- FABP linked with liver/L-FABP and heart/H-FABP. The designation of a tissue type, such as intestinal, does not suggest the binding protein is universally expressed in all cell types that make up the organ or tissue. Human I-FABP, the product of the FABP-2 gene, is a 132 aa cytosolic protein that shows a flattened beta -barrel structure (called a beta -clam) generated by a series of antiparallel beta -strands and two alpha - helices. Preferred ligands for FABP-2 include sixteen to twenty carbon long chain fatty acids. It is suggested that ligands first bind to the outside of the molecule, and this binding subsequently induces a conformational change in the binding protein, resulting in "internalization" of the ligand. An Ala-to-Thr polymorphism at position #54 has been reported to potentially impact FABP-2 function. This polymorphism has been suggested to be associated with an increased risk of type II diabetes. To date, the evidence appears to be equivocal. This polymorphism may, however, have unusual metabolic effects depending upon the type of diet involved. Human FABP-2 is 78%, 82% and 86% aa identical to mouse, rat and canine FABP-2, respectively. It also shows 33% and 24% aa identity to human H-FABP and L- FABP, respectively. FABP-2 is proposed to transport fatty acids (FA) into cells, increase FA availability to enzymes, protect cell structures from FA attack, and target FA to transcription factors in the nuclear lumen.

 

Product Properties

Synonyms

IFABP; I-FABP
Accession
P12104
GeneID
2169
Source
E.coli-derived Human FABP2, Ala2-Asp132.
Molecular Weight
Approximately 15.1 kDa.
AA Sequence
AFDSTWKVDR SENYDKFMEK MGVNIVKRKL AAHDNLKLTI TQEGNKFTVK ESSAFRNIEV VFELGVTFNY NLADGTELRG TWSLEGNKLI GKFKRTDNGN ELNTVREIIG DELVQTYVYE
GVEAKRIFKK D
Tag
None
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Purity
> 97 % by SDS-PAGE and HPLC analyses.
Biological Activity
Data Not Available.
Endotoxin
< 0.1 EU per 1μg of the protein by the LAL method.
Formulation
Lyophilized from a 0.2 µm filtered concentrated solution in PBS, pH 7.0
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20℃. Further dilutions should be made in appropriate buffered solutions.

 

Shipping and Storage

The products are shipped with ice pack and can be stored at -20℃ to -80℃ for 1 year.
Recommend to aliquot the protein into smaller quantities when first used and avoid repeated freeze-thaw cycles.

 

Cautions

1. Avoid repeated freeze-thaw cycles.
2. For your safety and health, please wear lab coats and disposable gloves for operation.
3. For research use only!

Recombinant Human Fatty-acid-binding Protein 2 (Human FABP2)_C230337

Product form

SKU: C230337E

$74.00

      • Tell a unique detail about this product

      Description

      Fatty acid binding protein-2 (FABP-2; also named I- or intestinal FABP) is a member of a large superfamily of lipid binding proteins that are expressed in a tissue specific manner. FABP-2 is one of nine cytoplasmic FABPs that are 14-15 kDa in size and range from 126-134 amino acids (aa) in length. Although all are highly conserved in their tertiary structure, there is only modest aa identity between any two members. Nevertheless, based on aa sequence, the nine FABP family members have been shown to form three subgroups, with FABP- 2/I- FABP linked with liver/L-FABP and heart/H-FABP. The designation of a tissue type, such as intestinal, does not suggest the binding protein is universally expressed in all cell types that make up the organ or tissue. Human I-FABP, the product of the FABP-2 gene, is a 132 aa cytosolic protein that shows a flattened beta -barrel structure (called a beta -clam) generated by a series of antiparallel beta -strands and two alpha - helices. Preferred ligands for FABP-2 include sixteen to twenty carbon long chain fatty acids. It is suggested that ligands first bind to the outside of the molecule, and this binding subsequently induces a conformational change in the binding protein, resulting in "internalization" of the ligand. An Ala-to-Thr polymorphism at position #54 has been reported to potentially impact FABP-2 function. This polymorphism has been suggested to be associated with an increased risk of type II diabetes. To date, the evidence appears to be equivocal. This polymorphism may, however, have unusual metabolic effects depending upon the type of diet involved. Human FABP-2 is 78%, 82% and 86% aa identical to mouse, rat and canine FABP-2, respectively. It also shows 33% and 24% aa identity to human H-FABP and L- FABP, respectively. FABP-2 is proposed to transport fatty acids (FA) into cells, increase FA availability to enzymes, protect cell structures from FA attack, and target FA to transcription factors in the nuclear lumen.

       

      Product Properties

      Synonyms

      IFABP; I-FABP
      Accession
      P12104
      GeneID
      2169
      Source
      E.coli-derived Human FABP2, Ala2-Asp132.
      Molecular Weight
      Approximately 15.1 kDa.
      AA Sequence
      AFDSTWKVDR SENYDKFMEK MGVNIVKRKL AAHDNLKLTI TQEGNKFTVK ESSAFRNIEV VFELGVTFNY NLADGTELRG TWSLEGNKLI GKFKRTDNGN ELNTVREIIG DELVQTYVYE
      GVEAKRIFKK D
      Tag
      None
      Physical Appearance
      Sterile Filtered White lyophilized (freeze-dried) powder.
      Purity
      > 97 % by SDS-PAGE and HPLC analyses.
      Biological Activity
      Data Not Available.
      Endotoxin
      < 0.1 EU per 1μg of the protein by the LAL method.
      Formulation
      Lyophilized from a 0.2 µm filtered concentrated solution in PBS, pH 7.0
      Reconstitution
      We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20℃. Further dilutions should be made in appropriate buffered solutions.

       

      Shipping and Storage

      The products are shipped with ice pack and can be stored at -20℃ to -80℃ for 1 year.
      Recommend to aliquot the protein into smaller quantities when first used and avoid repeated freeze-thaw cycles.

       

      Cautions

      1. Avoid repeated freeze-thaw cycles.
      2. For your safety and health, please wear lab coats and disposable gloves for operation.
      3. For research use only!

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