Gene
|
ABCA4 |
Protein
|
Retinal-specific ATP-binding cassette transporter |
Uniprot ID
|
O35600 |
Function
|
In 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 (By similarity). |
Tissue Specificity
|
Retinal-specific. Seems to be exclusively found in the rims of rod photoreceptor cells. |
Sub-cellular localization
|
Membrane ; Multi-pass membrane protein . Note: Localized to outer segment disk edges of rods and cones, with around one million copies/photoreceptor. |
Sequence Similarities
|
Belongs to the ABC transporter superfamily. ABCA family. |
Aliases
|
ABC 10 antibody|ABC A4 antibody|ABC10 antibody|ABCA 4 antibody|abcA4 antibody|ABCA4_HUMAN antibody|ABCR antibody|ARMD 2 antibody|ARMD2 antibody|ATP binding cassette 10 antibody|ATP binding cassette sub family A member 4 antibody|ATP binding cassette sub family A member4 antibody|ATP binding cassette transporter antibody|ATP binding cassette transporter retinal specific antibody|ATP binding cassette, sub family A(ABC1), member 4 antibody|ATP binding cassette, sub family A(ABC1), member4 antibody|ATP binding cassette10 antibody|ATP binding transporter, retina specific antibody|ATP-binding cassette sub-family A member 4 antibody|CORD 3 antibody|CORD3 antibody|DKFZp781N1972 antibody|FFM antibody|FLJ17534 antibody|Photoreceptor rim protein antibody|Retina specific ABC transporter antibody|Retinal specific ATP binding cassette transporter antibody|Retinal-specific ATP-binding cassette transporter antibody|RIM ABC transporter antibody|RIM protein antibody|RmP antibody|RP 19 antibody|RP19 antibody|Stargardt disease protein antibody|STGD antibody|STGD1 antibody |
