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ABS1508-25UG Anti-SREBP-1

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ABS1508-25UG
25 μg  
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      Overview

      Replacement Information

      Key Specifications Table

      Species ReactivityKey ApplicationsHostFormatAntibody Type
      HWB, IH(P)RbAffinity PurifiedPolyclonal Antibody
      Description
      Catalogue NumberABS1508-25UG
      DescriptionAnti-SREBP-1
      Alternate Names
      • Sterol regulatory element-binding protein 1
      • Class D basic helix-loop-helix protein 1
      • bHLHd1
      • Sterol regulatory element-binding transcription factor 1
      Background InformationSterol regulatory element-binding protein 1 (UniProt: P36956; also known as SREBP-1, Class D basic helix-loop-helix protein 1, bHLHd1, Sterol regulatory element-binding transcription factor 1) is encoded by the SREBF1 (also known as BHLHD1, SREBP1) gene (Gene ID: 6720) in human. SREBP-1 is a multi-pass membrane protein that acts as at transcriptional activator required for lipid homeostasis. Six isoforms of SREBP-1 have been described that are produced by alternative splicing. SREBP-1 is expressed in a wide variety of tissues and is most abundant in liver and adrenal gland. In fetal lung and liver it is expressed in high levels. SREBP-1A predominates in hepatoma cell lines while isoform SREBP-1C is predominantly found in liver, adrenal gland, and ovary. Both isoforms IA and IC is found in kidney, brain, white fat, and muscle. SREBP-1 regulates transcription of the LDL receptor gene as well as the fatty acid and to a lesser degree the cholesterol synthesis pathway. It binds to the sterol regulatory element 1 (SRE-1) (5'-ATCACCCCAC-3') and has dual sequence specificity binding to both an E-box motif (5'-ATCACGTGA-3') and to SRE-1 (5'-ATCACCCCAC-3'). SREBP-1 has two cytoplasmic domains (aa 1-487 and 567-1147; two helical domains (aa 488-508 and 548-568), and a luminal domain (aa 509-547). In the absence of sterols, it moves from the endoplasmic reticulum to the Golgi. At low cholesterol the SCAP/SREBP complex is recruited into COPII vesicles for export from the ER. In the Golgi complex SREBPs are cleaved sequentially by site-1 and site-2 protease. The first cleavage by site-1 protease occurs within the luminal loop, the second cleavage by site-2 protease occurs within the first transmembrane domain and releases the transcription factor from the Golgi membrane.
      References
      Product Information
      FormatAffinity Purified
      PresentationPurified rabbit polyclonal antibody in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.
      Applications
      ApplicationAnti-SREBP-1, Cat. No. ABS1508, is a rabbit polyclonal antibdody that detects Sterol regulatory element-binding protein 1 and has been tested for use in Immunohistochemistry (Paraffin) and Western Blotting.
      Key Applications
      • Western Blotting
      • Immunohistochemistry (Paraffin)
      Application NotesImmunohistochemistry Analysis: A 1:250-1,000 dilution from a representative lot detected SREBP-1 in human adrenal gland and human kidney tissues.
      Biological Information
      ImmunogenKLH-conjugated linenar peptide corresponding to 14 amino acids from the N-terminal half of human Sterol regulatory element-binding protein 1. The Immunogen sequence is conserved in SREBP-1A, B, and C and in isoform 4.
      ConcentrationPlease refer to lot specific datasheet.
      HostRabbit
      SpecificityThis rabbit polyclonal antibody detects Sterol regulatory element-binding protein 1 in human.
      IsotypeIgG
      Species Reactivity
      • Human
      Species Reactivity NoteHuman.
      Antibody TypePolyclonal Antibody
      Gene Symbol
      • SREBF1
      • BHLHD1
      • SREBP1
      Purification MethodAffinity Purified
      UniProt Number
      Molecular Weight~120 kDa observed; 121.67 kDa calculated. Uncharacterized bands may be observed in some lysate(s).
      Physicochemical Information
      Dimensions
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Safety Information
      Product Usage Statements
      Quality AssuranceEvaluated by Western Blotting in DU145 cell lysate.
      Western Blotting Analysis: 1 µg/mL of this antibody detected SREBP-1 in 10 µg of DU145 cell lysate.
      Usage Statement
      • 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.
      Storage and Shipping Information
      Storage ConditionsStable for 1 year at 2-8°C from date of receipt.
      Packaging Information
      Material Size25 μg
      Transport Information
      Supplemental Information
      Specifications
      Global Trade Item Number
      Catalog Number GTIN
      ABS1508-25UG 04054839543609