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| <StructureSection load='3han' size='350' side='right' scene='46/463242/Cv/4' caption='Bacteriorhodopsin complex with retinal, [[3han]]'> | | <StructureSection load='' size='350' side='right' scene='46/463242/Cv/4' caption='Bacteriorhodopsin complex with retinal, [[3han]]'> |
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| == Function == | | == Function == |
Revision as of 18:58, 27 September 2017
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Function
Bacteriorhodopsin (Br) is a membrane protein in Archaea which moves protons across the cell membrane. See also Bacteriorhodopsin (Hebrew).
Structural highlights
Br is composed of 6 α-helical elements each containing a retinal molecule. The retinal changes its ground state conformation upon binding of a proton, causing the Br to change conformation to the activated state and pump the proton. The retinal interacts predominantly with hydrophobic and aromatic residues [1] (Hydrophobic, Polar).
- ↑ Joh NH, Oberai A, Yang D, Whitelegge JP, Bowie JU. Similar energetic contributions of packing in the core of membrane and water-soluble proteins. J Am Chem Soc. 2009 Aug 12;131(31):10846-7. PMID:19603754 doi:10.1021/ja904711k
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3D Structures of bacteriorhodopsin
Updated on 27-September-2017
{"openlevels":0}
- Bacteriorhodopsin
- Bacteriorhodopsin (Hebrew), 3nsb, 3mbv, 1x0s, 1x0i, 1x0k, 1xji, 1iw6, 4fpd, 2i1x, 1kme, 1qm8, 1bm1, 1brr, 2brd, 4hyx, 4xxj, 4y9h, 5a44, 5a45, 5b34, 5b35, 5b6v, 5b6w, 5b6x, 5b6y, 5b6z, 5h2h, 5h2i, 5h2j, 5h2k, 5h2l, 5h2m– HsBr residues 14-261 + lipid + retinal – Halobacterium salinarum
- 3vhz - HsBr (mutant) + lipid + retinal
- 2wjk, 2wjl - HsBr residues 14-261 (mutant) + lipid + retinal
- 3han, 2hao, 3hap, 3haq, 3har, 3has, 3coc, 3cod, 1tn5, 1tn0, 1s51, 1s52, 1s53, 1s54, 1q5i, 1q5j, 1pxr, 1pxs, 3hao, 3utv, 3utw, 3utx, 3uty - HsBr residues 14-261 (mutant) + retinal
- 2ntu, 1py6, 1fbb, 1fbk, 1brx, 1ap9, 1at9, 5br2, 5br5 - HsBr residues 14-261 + retinal
- 4x31, 4x32 - HsBr residues 14-261 + lipid + retinal
- 2at9 - HsBr residues 14-261 + lipid + retinal – Cryo EM
- 1brd - HsBr residues 14-261 + retinal – Cryo EM
- 1s8j, 3t45 - HsBr residues 14-261 (mutant) + lipid + NO3 + retinal
- 1mgy - HsBr residues 14-261 (mutant) + lipid + Br + retinal
- 1s8l - HsBr residues 14-261 (mutant) + lipid + retinal
- 4md1, 4md2, 4ov0 - HsBr residues 14-261 + lipid
- 1qhj - HsBr residues 14-261 + phytanyl derivavative + retinal
- 4hwl – HsBr + heptane + hexane + retinal
- 1r84, 1r2n - HsBr residues 1-232 + retinal – NMR
- 1bct - HsBr residues 163-231 – NMR
- 1bha, 1bhb - HsBr residues 1-71 - NMR
- 1l0m – Br (mutant) – Halobacterium halobium - NMR
- 4pxk - Br (mutant) – Haloarcula marismortuim
- 4qi1, 4qid – HwBr-I – Haloquadratum walsbyi
- 4wav – HwBr-I (mutant)
- 5azd – Br – Thermus thermophilus
- Bacteriorhodopsin intermediates
- 1f50, 1c8r - HsBr-BR residues 18-244 (mutant) + lipid + retinal
- 1c3w - HsBr-BR residues 5-231 + lipid + retinal
- 2zfe – HsBr-K residues 14-261 + lipid + retinal
- 1m0k, 1m0l, 1ixf - HsBr-K residues 1-261 + lipid + retinal
- 1m0m - HsBr-M1 residues 1-261 + lipid + retinal
- 1e0p, 2ntw, 1vjm - HsBr-L residues 18-245 + retinal
- 1ucq, 1iw9, 1o0a – HsBr-L residues 14-261 + lipid + retinal
- 1kg8, 1kg9, 1kgb, 1dze, 1cwq, 2zzl, 2i20, 2i21, 1p8h - HsBr-M residues 13-243 + lipid + retinal
- 1f4z, 1c8s, 1p8i - HsBr-M residues 18-244 (mutant) + lipid + retinal
- 1p8u – HsBr-N residues 14-261 (mutant) + lipid + retinal
- 1jv6, 1jv7, 3vi0 - HsBr-O residues 1-261 (mutant) + lipid + retinal
- 1qko, 1qkp - HsBr residues 14-261 + retinal
- Halorhodopsin
- 3abw, 3a7k, 3vvk – NpBr+ N3 + bacterioruberin + detergent + retinal – Natronomonas pharaonis
- 3qbg, 3qbi, 3qbk, 3qbl - NpBr + bacterioruberin + detergent + retinal
- 2jaf, 2jag, 1e12 - HsBr (mutant) + lipid+ retinal
- Sensory rhodopsin II
- 2ksy – NpBr – NMR
- 2f93, 2f95, 1h2s - BpBr + Br transducer + detergent + retinal
- 3qap, 3qdc - NpBr + eicosane + lipid + retinal
- 4gyc - NpBr + retinal + eicosane + lipid + Br transducer
- 1gu8, 1gue, 1h68, 1jgj - NpBr + retinal
- 1xio - AnBr + detergent + retinal - Anabaena
- 4tl3 - AnBr (mutant) + detergent + retinal
- 2m3g - AnBr + detergent - NMR
- Xanthorhodopsin
- 3ddl – Br + detergent + salinixanthin + retinal – Salinibacter ruber
- Archaerhodopsin
- 2ei4, 2z55 – HaBr + bacterioruberin + detergent + retinal – Halobacterium
- 1vgo - HaBr + detergent + retinal
- 1uaz - HaBr + retinal
- Proteorhodopsin
- 2l6x - GpPRn + detergents + retinal – Gamma proteobacterium
- 4kly, 4knf - GpPRn + retinal
- 4jq6 – PRn + retinal + lipid
- Deltarhodopsin
- 4fbz - Rn + bacterioruberin + retinal – Haloterrigena thermotolerans
See Also
References
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