Ferredoxin

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[[1b9r]] – TER – Pseudomonas - NMR <br />
[[1b9r]] – TER – Pseudomonas - NMR <br />
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'''Acetylcholinesterase''' (AChE) is key enzyme in the nervous system of animals. By rapid hydrolysis of the neurotransmitter, '''acetylcholine''' (ACh), AChE terminates neurotransmission at cholinergic synapses. It is a very fast enzyme, especially for a serine hydrolase, functioning at a rate approaching that of a diffusion-controlled reaction. AChE inhibitors are among the key drugs approved by the FDA for management of Alzheimer's disease (AD). The powerful toxicity of organophosphorus (OP) poisons is attributed primarily to their potent AChE inhibitors.
 
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[[Image:Synapse_Schematic.jpg|thumb|Cholinergic Synapse|300px|left]]
 

Revision as of 07:17, 27 May 2010


AChE

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Ferredoxin (Fd) is found in chloroplasts which mediates electron transfer and contains an iron-sulfur cluster. It is involved in the photosynthesis process where its iron atoms accept or discharge electrons when they are being oxidized or reduced. The iron-sulfur cluster can contain 2Fe-2S and is termed plant-like or 3Fe-4S or 4Fe-4S clusters. Adrenodoxin (ADR) is a ferredoxin containing a 2Fe-2S group involved in electron transfer from NADPH+ to a cytochrome P-450 in the adrenal gland. Putidaredoxin (PUT) and terpredoxin (TER) are involved in the same reaction in bacteria and contain a 2Fe-2S group.


Contents

2Fe-2S containing ferredoxins

3hui – Fd – Rhodopseudomonas palustris
2kaj, 1dox, 1doy – SyFd +Ga – Synechocystis – NMR
1off – SyFd
3gce – Fd – Nocardioides aromaticivorans
2e4p, 2e4q - Fd – Pseudomonas sp.
2q3w, 1vm9 - PmFd (mutant) – Pseudomonas mendocina
2i7f - Fd – Rhodobacter capsulatus
1rfk - Fd – Cyanobacterium masticogladus laminosus
1vck - Fd – Pseudomonas resinovorans
1wri, 1frr - Fd – Equisetum arvense
1sjg - PmFd– NMR
1iue - Fd– Plasmodium falciparum
1m2a –AeFd – Aquifex aeolicus
1m2b, 1m2d, 1f37, 1f5b, 1f5c – AeFd (mutant)
1l5p – Fd – Trichomonas vaginalis
1i7h - Fd – Escherichia coli
1czp, 1qt9, 1frd, 1fxa - aFd– anabaena
1j7a, 1j7b, 1j7c , 1qoa, 1qob, 1qof, 1qog- aFd (mutant)
1e0z – Fd – Halobacterium salinarium
1pfd – Fd – Petroselinum crispum – NMR
1a70 - Fd (mutant) – Spinacia oleracea
1awd - Fd – Chlorella fusca
2cjn, 2cjo, 1roe – SyFd – NMR
1rof – SyFd – Synechococcus elongates
1doi - Fd – Haloarcula marismortui
4fxc – Fd – Spirulina platensis
1fxi – Fd – Aphanothece sacrum
3dqy, 2qpz - Fd – Pseudomonas putida

4Fe-4S containing ferredoxins

3eun – AvFd – Allochromatium vinosum
3exy - AvFd (mutant)
2vkr - Fd+Zn – Acidianus ambivalens
2z8q - PfFd (mutant) – Pyrococcus furiosus
2fgo - Fd– Pseudomonas aeruginosa
1iqz, 1ir0 - BtFd – Bacillus thermoproteolyticus
1rgv - Fd – Thauera aromatica
1dax, 1dfd – DaFd – Desulfovibrio africanus – NMR
1fxr - DaFd
1vjw – Fd – Thermotoga maritima

3Fe-4S containing ferredoxins

2v2k – Fd – Mycobacterium smegmatis
1wtf - BtFd (mutant)
1sj1 - PfFd
1fxd - DgFd – Desulfovibrio gigas
1f2g – DgFd – NMR
1xer - Fd – Sulfolobus tokodaii

4Fe-4S+3Fe-4S containing ferredoxins

1gao, 6fdr, 7fd1, 7fdr, 1axq, 6fd1, 1frh, 1fri,1frj, 1frk, 1frl, 1frm, 1fda, 1fdb, 1fdd, 5fd1, 1fer – AvFd – Azotobacter vinelandii
1pc4, 1pc5, 1g6b, 1g3o, 1ff2, 1b0v, 1d3w, 1b0t, 1a6l, 1ftc, 1frx, 2fd2, 1fd2 - AvFd (mutant)
1h98 – Fd – Thermus thermophilus
1a8p, 1bd6 - BsFd – Bacillus schlegelii – NMR

4Fe-4S+4Fe-4S containing ferredoxins

1dur – Fd – Peptoniphilus asaccarolyticus
1bwe, 1bqx - BsFd (mutant) – NMR
2fdn, 1fca , 1fdn- Fd – Clostridium acidi-urici
1blu - Fd – Chromatium vinosum
1clf – Fd – Clostridium pasteurianum – NMR

Adrenoredoxin

jqr – ADR Fd domain (mutant)+cytochrome c (mutant) – yeast – NMR
2bt6 – cADR1 modified – cow
1l6u, 1l6v – cADR1 – NMR
1e6e – cADR (mutant)+ADR reductase
1cje, 1ayf - cADR

Putidaredoxin

1yji, 1yjj, 1pdx – PpPUT – Pseudomonas putida – NMR
3lb8 – PpPUT (mutant)+PUT reductase
1xln, 1xlo, 1xlp, 1xlq, 1r7s, 1oqq, 1oqr - PpPUT (mutant)
1gpx, 1put- PpPUT (mutant) - NMR

Terpredoxin

1b9r – TER – Pseudomonas - NMR

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