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3.E.1.4.4
Acetaularia rhodopsin I, ARI or c102333 of 246 aas.  It exhibits outward H+ pumping activity, and D89 and D100 are essential for pumping activity (Lee et al. 2015). Blue-light causes a shunt of the photocycle under H+ reuptake from the extracellular side (Tsunoda et al. 2006). Similarities and differences of AR with BR have been revealed by detailed electrophysiological studies, revealing among other things, the voltage dependencies of the pump (Tsunoda et al. 2006).

Accession Number:Q1AJZ3
Protein Name:Rhodopsin
Length:279
Molecular Weight:30876.00
Species:Acetabularia acetabulum (Mermaid's wine glass) [35845]
Number of TMSs:8
Substrate H+

Cross database links:

Pfam: PF01036   

Gene Ontology

GO:0016020 C:membrane
GO:0005216 F:ion channel activity
GO:0006811 P:ion transport

External Searches:

  • Search: DB with
  • BLAST ExPASy (Swiss Institute of Bioinformatics (SIB) BLAST)
  • CDD Search (Conserved Domain Database)
  • Search COGs (Clusters of Orthologous Groups of proteins)
  • 2° Structure (Network Protein Sequence Analysis)

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MSNPNPFQTT LGTDAQWVVF AVMALAAIVF SIAVQFRPLP LRLTYYVNIA ICTIAATAYY 
61:	AMAVNGGDNK PTAGTGADER QVIYARYIDW VFTTPLLLLD LVLLTNMPAT MIAWIMGADI 
121:	AMIAFGIIGA FTVGSYKWFY FVVGCIMLAV LAWGMINPIF KEELQKHKEY TGAYTTLLIY 
181:	LIVLWVIYPI VWGLGAGGHI IGVDVEIIAM GVLDLLAKPL YAIGVLITVE VVYGKVGQGG 
241:	SLAFDCLKIL KWWKLLWFQL VSIHFSLCVC RVTSYFLLN