Recombinant Human Secretogranin V protein (ab100887)

Overview

  • Product nameRecombinant Human Secretogranin V protein
  • Protein lengthFull length protein

Description

  • NatureRecombinant
  • SourceEscherichia coli
  • Amino Acid Sequence
    • AccessionP05408
    • SpeciesHuman
    • SequenceMYSPRTPDRV SEADIQRLLH GVMEQLGIAR PRVEYPAHQA MNLVGPQSIE GGAHEGLQHL GPFGNIPNIV AELTGDNIPK DFSEDQGYPD PPNPCPVGKT ADDGCLENTP DTAEFSREFQ LHQHLSDPEH DYPGLGKWNK KLLYEKMKGG ERRKRRSVNP YLQGQRLDNV VAKKSVPHFS DEDKDPE LEH HHHHH
    • Molecular weight22 kDa including tags
    • Amino acids27 to 212
    • TagsHis tag C-Terminus

Specifications

Our Abpromise guarantee covers the use of ab100887 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Applications

    Mass Spectrometry

    SDS-PAGE

  • Mass spectrometry
    MALDI-TOF
  • Purity> 85 % SDS-PAGE.
    ab100887 is purified using conventional chromatography techniques.
  • FormLiquid
  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.

    Preservative: 0% None
    Constituents: 20% Glycerol, 0.1M Sodium chloride, 20mM Tris HCl, 1mM DTT, 0.1mM PMSF, pH 8.0

General Info

  • Alternative names
    • 7B2
    • 7B2 protein
    • APPG
    • Neuroendocrine protein 7B2
    • P7B2
    • Pituitary polypeptide
    • Prohormone convertase chaperone
    • SCG 5
    • SCG5
    • Secretogranin 5
    • Secretogranin V 7B2 protein
    • Secretogranin5
    • SecretograninV
    • Secretory granule endocrine protein I
    • Secretory granule neuroendocrine protein 1
    • Secretory granule neuroendocrine protein 1 7B2 protein
    • Sg V
    • SGNE 1
    • SGNE1
    • SgV
    see all
  • RelevanceKnown variously as APPG, 7B2 and neuroendocrine protein I, Secretogranin V was originally isolated from porcine pituitary in 1983. It soon became evident that Secretogranin V-like immunoreactants were present in many cell types from a variety of species, and it is now recognised to be widely distributed in neural and endocrine tissues. In the early 1990s full length (27kDa) Secretogranin V was shown to be a potent inhibitor of prohormone convertase PC2 activity, a subtilisin-like enzyme responsible for the proteolytic cleavage of many neuroendocrine precursor molecules, including proenkephalin, POMC and gastrin-17. mRNA distribution analysis revealed that in adult rat brain, expression of Secretogranin V mRNA was pan-neuronal, whereas PC2 mRNA was exclusively neuronal, but more restricted. PC2+/Secretogranin V- cells were not encountered in the adult, but were common in developing rat brain. These findings suggest that Secretogranin V may have intracellular functions other than PC2 maturation in certain cells, although some recent work shows a discordancy between mRNA expression and enzymic activity. The mechanism for PC2 maturation appears to involve pro-Secretogranin V binding to inactive pro-PC2 via its polyproline motif (116 PPNPCP 121) in the endoplasmic reticulum and chaperoning pro-PC2 to a later secretory pathway compartment where maturation of PC2 proceeds once pro-Secretogranin V is proteolytically processed by a furin-like convertase into a 21kDa fragment and a C-terminal peptide. It is the C-terminal peptide that potently inhibits maturation of pro-PC2 until the complex is subjected to a decreasing pH gradient along the secretory pathway. It seems likely that mature PC2 then cleaves the CT peptide at its internal lys-lys site. Secretogranin V knockout mice develop a severe Cushings-like phenotype and exhibit multiple metabolic and hormonal abnormalities, indicating that Secretogranin V is required for activation of PC2 in vivo. Conversely, PC2-null mice appear to be viable.
  • Cellular localizationNeuroendocrine and endocrine secretory granules.

Recombinant Human Secretogranin V protein images

  • ab100887 (3 µg) on an SDS-PAGE gel (15 %).

References for Recombinant Human Secretogranin V protein (ab100887)

ab100887 has not yet been referenced specifically in any publications.

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