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3UG9

Crystal Structure of the Closed State of Channelrhodopsin

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Archaeal-type opsin 1, Archaeal-type opsin 2polymer33337442.01UniProt (Q93WP2)
UniProt (Q8RUT8)
Chlamydomonas reinhardtiiChannelopsin-1, Chlamyopsin 4 light-gated ion channel, Retinal binding protein, Sensory opsin B
2B
(A)
RETINALnon-polymer284.41Chemie (RET)
PubChem (23254473)
PubChem (177675058)
PubChem (5280490)
PubChem (5381765)
PubChem (87082476)
PubChem (87110449)
PubChem (87110609)
PubChem (88398773)
PubChem (88407543)
PubChem (1070)
PubChem (638015)
PubChem (5353924)
PubChem (6436079)
PubChem (6436082)
PubChem (11426127)
PubChem (12227253)
PubChem (12227254)
PubChem (12227256)
PubChem (12227257)
PubChem (12227258)
PubChem (12227259)
PubChem (12227269)
PubChem (12227270)
PubChem (12227271)
PubChem (134688327)
PubChem (140510408)
PubChem (145826762)
PubChem (169423542)
PubChem (172878320)
3C, D, E, F, G...
(A)
OLEIC ACIDnon-polymer282.56Chemie (OLA)
PubChem (965)
PubChem (445639)
PubChem (637517)
4I
(A)
waterwater18.043Chemie (HOH)
Sequence modifications
A: 24 - 245 (UniProt: Q93WP2)
A: 246 - 348 (UniProt: Q8RUT8)
PDBExternal DatabaseDetails
Ser 349-expression tag
Ser 350-expression tag
Glu 351-expression tag
Asp 352-expression tag
Leu 353-expression tag
Tyr 354-expression tag
Phe 355-expression tag
Gln 356-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight37442.0
Non-Polymers*Number of molecules7
Total formula weight1979.2
All*Total formula weight39421.2
*Water molecules are not included.

253795

PDB entries from 2026-05-20

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