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id3-a recombinant protein :: DNA-binding protein inhibitor ID-3-A (id3-a) Recombinant Protein

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Catalog # MBS1304234
Unit / Price
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  0.05 mg (E-Coli)  /  $510 +1 FREE 8GB USB
  0.05 mg (Yeast)  /  $660 +1 FREE 8GB USB
  0.2 mg (E-Coli)  /  $685 +1 FREE 8GB USB
  0.5 mg (E-Coli)  /  $750 +1 FREE 8GB USB
  0.2 mg (Yeast)  /  $900 +1 FREE 8GB USB
  0.05 mg (Baculovirus)  /  $900 +1 FREE 8GB USB
  0.5 mg (Yeast)  /  $1,010 +1 FREE 8GB USB
  1 mg (E-Coli)  /  $1,125 +1 FREE 8GB USB
  0.05 mg (Mammalian-Cell)  /  $1,130 +1 FREE 8GB USB
  0.1 mg (Baculovirus)  /  $1,285 +1 FREE 8GB USB
  1 mg (Yeast)  /  $1,605 +2 FREE 8GB USB
  0.5 mg (Baculovirus)  /  $1,690 +2 FREE 8GB USB
  0.1 mg (Mammalian-Cell)  /  $1,855 +2 FREE 8GB USB
  1 mg (Baculovirus)  /  $2,635 +3 FREE 8GB USB
id3-a recombinant protein
Product Name

DNA-binding protein inhibitor ID-3-A (id3-a), Recombinant Protein

Full Product Name

Recombinant Xenopus laevis DNA-binding protein inhibitor ID-3-A (id3-a)

Product Synonym Gene Name
Research Use Only
For Research Use Only. Not for use in diagnostic procedures.
Sequence Positions
1-118aa, full length protein
3D Structure
ModBase 3D Structure for Q91399
E Coli or Yeast or Baculovirus or Mammalian Cell
>85% (SDS-PAGE) (lot specific)
Liquid containing glycerol
Tag Information
This protein contains an N-terminal tag and may also contain a C-terminal tag. Tag types are determined by various factors including tag-protein stability, please inquire for tag information.
Sterile filter available upon request.
Low endotoxin available upon request.
Xenopus laevis (African clawed frog)
Storage Buffer
Tris-based buffer, 50% glycerol
Preparation and Storage
Store at -20 degrees C. For long-term storage, store at -20 degrees C or -80 degrees C. Store working aliquots at 4 degrees C for up to one week. Repeated freezing and thawing is not recommended.
ISO Certification
Manufactured in an ISO 13485:2003 and EN ISO 13485:2012 Certified Laboratory.
Other Notes
Small volumes of id3-a recombinant protein vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.
NCBI/Uniprot data below describe general gene information for id3-a. It may not necessarily be applicable to this product.
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Primary Accession #
UniProt Secondary Accession #
UniProt Related Accession #
Molecular Weight
12,857 Da
NCBI Official Full Name
DNA-binding protein inhibitor ID-3-A
NCBI Official Synonym Full Names
inhibitor of DNA binding 3, HLH protein L homeolog
NCBI Official Symbol
id3.L  [Similar Products]
NCBI Official Synonym Symbols
id3; XId3; XIdI; XIdx; XIdIa; XIdIb; id3-a; id3-b; heir-1
  [Similar Products]
NCBI Protein Information
DNA-binding protein inhibitor ID-3-A
UniProt Protein Name
DNA-binding protein inhibitor ID-3-A
UniProt Synonym Protein Names
Inhibitor of DNA binding 3
UniProt Gene Name
id3-a  [Similar Products]
UniProt Synonym Gene Names
; XIdx  [Similar Products]
UniProt Comments for id3-a
Transcriptional regulator (lacking a basic DNA binding domain) which negatively regulates the basic helix-loop-helix (bHLH) transcription factors by forming heterodimers and inhibiting their DNA binding and transcriptional activity. Influences cell fate decisions in the embryo by sequestering and blocking the activity of the bHLH transcription factors that control these decisions. Inhibits the binding of myogenic bHLH-containing complexes to E-box DNA, thereby preventing activation of muscle-specific target genes. Also inhibits the activity of neurogenic factor neurod1/neuroD. Plays a role in cell cycle progression and survival of neural crest progenitors; binding to either hes4-B/hairy2b or stat3 blocks the formation of transcription factor complexes and the repressor function of hes4-B/hairy2B, to allow neural crest progenitors to differentiate. May play a role in the regulation of the circadian rhythm.
All of MyBioSource's Products are for scientific laboratory research purposes and are not for diagnostic, therapeutics, prophylactic or in vivo use. Through your purchase, you expressly represent and warrant to MyBioSource that you will properly test and use any Products purchased from MyBioSource in accordance with industry standards. MyBioSource and its authorized distributors reserve the right to refuse to process any order where we reasonably believe that the intended use will fall outside of our acceptable guidelines.
While every efforts were made to ensure the accuracy of the information provided in this datasheet, MyBioSource will not be liable for any omissions or errors contained herein. MyBioSource reserves the right to make changes to this datasheet at any time without prior notice.

It is the responsibility of the customer to report product performance issues to MyBioSource within 30 days of receipt of the product. Please visit our Terms & Conditions page for more information.
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