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Overview

  • Product nameABCA4 peptideSee all ABCA4 proteins and peptides ...
  • Protein descriptionSynthetic peptide derived from within residues 2250 to the C-terminus of Human ABCA4.(Note: the amino acid sequence is proprietary)This peptide was used as an immunogen for ab72955 - ABCA4 antibody.
  • Protein length2273 amino acids

    • Properties

  • Purity70 - 90% by HPLC
  • FormLiquid
  • Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
  • Storage bufferInformation available upon request.
  • Concentration information loading...
  • Research Areas

    • Applications

  • Application notesThis peptide can be used with studies using ab72955.

    • Protein info

    • Alternative names
        ABC 10ABC A4ABC10
        ABCA 4abcA4ABCA4_HUMANABCRARMD 2ARMD2ATP binding cassette 10ATP binding cassette sub family A member 4ATP binding cassette sub family A member4ATP binding cassette transporterATP binding cassette transporter retinal specificATP binding cassette, sub family A (ABC1), member 4ATP binding cassette, sub family A (ABC1), member4ATP binding cassette10ATP binding transporter, retina specificATP-binding cassette sub-family A member 4CORD 3CORD3DKFZp781N1972FFMFLJ17534Photoreceptor rim proteinRetina specific ABC transporterRetinal specific ATP binding cassette transporterRetinal-specific ATP-binding cassette transporterRIM ABC transporterRIM proteinRmPRP 19RP19Stargardt disease proteinSTGDSTGD1
      see all
  • FunctionIn the visual cycle, acts as an inward-directed retinoid flipase, retinoid substrates imported by ABCA4 from the extracellular or intradiscal (rod) membrane surfaces to the cytoplasmic membrane surface are all-trans-retinaldehyde (ATR) and N-retinyl-phosphatidyl-ethanolamine (NR-PE). Once transported to the cytoplasmic surface, ATR is reduced to vitamin A by trans-retinol dehydrogenase (tRDH) and then transferred to the retinal pigment epithelium (RPE) where it is converted to 11-cis-retinal. May play a role in photoresponse, removing ATR/NR-PE from the extracellular photoreceptor surfaces during bleach recovery.
  • Tissue specificityRetinal-specific. Seems to be exclusively found in the rims of rod photoreceptor cells.
  • Involvement in diseaseDefects in ABCA4 are the cause of Stargardt disease type 1 (STGD1) [MIM:248200]. STGD is one of the most frequent causes of macular degeneration in childhood. It is characterized by macular dystrophy with juvenile-onset, rapidly progressive course, alterations of the peripheral retina, and subretinal deposition of lipofuscin-like material. STGD1 inheritance is autosomal recessive.
    Defects in ABCA4 are the cause of fundus flavimaculatus (FFM) [MIM:248200]. FFM is an autosomal recessive retinal disorder very similar to Stargardt disease. In contrast to Stargardt disease, FFM is characterized by later onset and slowly progressive course.
    Defects in ABCA4 may be a cause of age-related macular degeneration type 2 (ARMD2) [MIM:153800]. ARMD is a multifactorial eye disease and the most common cause of irreversible vision loss in the developed world. In most patients, the disease is manifest as ophthalmoscopically visible yellowish accumulations of protein and lipid (known as drusen) that lie beneath the retinal pigment epithelium and within an elastin-containing structure known as Bruch membrane.
    Defects in ABCA4 are the cause of cone-rod dystrophy type 3 (CORD3) [MIM:604116]. CORDs are inherited retinal dystrophies belonging to the group of pigmentary retinopathies. CORDs are characterized by retinal pigment deposits visible on fundus examination, predominantly in the macular region, and initial loss of cone photoreceptors followed by rod degeneration. This leads to decreased visual acuity and sensitivity in the central visual field, followed by loss of peripheral vision. Severe loss of vision occurs earlier than in retinitis pigmentosa.
    Defects in ABCA4 are the cause of retinitis pigmentosa type 19 (RP19) [MIM:601718]. RP leads to degeneration of retinal photoreceptor cells. Patients typically have night vision blindness and loss of midperipheral visual field. As their condition progresses, they lose their far peripheral visual field and eventually central vision as well. RP19 is characterized by choroidal atrophy. Inheritance is autosomal recessive.
  • Sequence similaritiesBelongs to the ABC transporter superfamily. ABCA family.
    Contains 2 ABC transporter domains.
  • Cellular localizationMembrane. Localized to outer segment disk edges of rods and cones, with around one million copies/photoreceptor.

    • Target information above from: UniProt accession P78363 The UniProt Consortium
    The Universal Protein Resource (UniProt) in 2010
    Nucleic Acids Res. 38:D142-D148 (2010) .

    Information by UniProt

    References for ABCA4 peptide (ab87350)

    ab87350 has not yet been referenced specifically in any publications.

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