HEADER PROTON TRANSPORT 18-NOV-20 7B03 TITLE CRYO-EM STRUCTURE OF THE GREEN-LIGHT ABSORBING PROTEORHODOPSIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEORHODOPSIN; COMPND 3 CHAIN: A, B, C, D, E; COMPND 4 ENGINEERED: YES; COMPND 5 OTHER_DETAILS: EXPRESSED WITHOUT SIGNAL SEQUENCE. SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: UNCULTURED GAMMAPROTEOBACTERIA BACTERIUM; SOURCE 3 ORGANISM_TAXID: 86473; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS LIGHT-DRIVEN PROTON PUMP, MICROBIAL RHODOPSIN, RETINAL, PROTON KEYWDS 2 TRANSPORT EXPDTA ELECTRON MICROSCOPY AUTHOR S.HIRSCHI,D.KALBERMATTER,D.FOTIADIS REVDAT 2 14-JUL-21 7B03 1 JRNL REVDAT 1 16-JUN-21 7B03 0 JRNL AUTH S.HIRSCHI,D.KALBERMATTER,Z.UCURUM,T.LEMMIN,D.FOTIADIS JRNL TITL CRYO-EM STRUCTURE AND DYNAMICS OF THE GREEN-LIGHT ABSORBING JRNL TITL 2 PROTEORHODOPSIN JRNL REF NATURE COMMUNICATIONS V. 12 4107 2021 JRNL DOI 10.1038/S41467-021-24429-6 REMARK 2 REMARK 2 RESOLUTION. 2.93 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : RELION, CTFFIND, RELION, CRYOSPARC, REMARK 3 CRYOSPARC REMARK 3 RECONSTRUCTION SCHEMA : NULL REMARK 3 REMARK 3 EM MAP-MODEL FITTING AND REFINEMENT REMARK 3 PDB ENTRY : NULL REMARK 3 REFINEMENT SPACE : NULL REMARK 3 REFINEMENT PROTOCOL : NULL REMARK 3 REFINEMENT TARGET : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE : NULL REMARK 3 REMARK 3 FITTING PROCEDURE : NULL REMARK 3 REMARK 3 EM IMAGE RECONSTRUCTION STATISTICS REMARK 3 NOMINAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 ACTUAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 EFFECTIVE RESOLUTION (ANGSTROMS) : 2.930 REMARK 3 NUMBER OF PARTICLES : 717107 REMARK 3 CTF CORRECTION METHOD : PHASE FLIPPING AND AMPLITUDE REMARK 3 CORRECTION REMARK 3 REMARK 3 EM RECONSTRUCTION MAGNIFICATION CALIBRATION: NULL REMARK 3 REMARK 3 OTHER DETAILS: FINAL MAP WAS OBTAINED AFTER APPLYING DENSITY REMARK 3 MODIFICATION USING RESOLVE CRYO-EM IN PHENIX. REMARK 4 REMARK 4 7B03 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 18-NOV-20. REMARK 100 THE DEPOSITION ID IS D_1292112288. REMARK 245 REMARK 245 EXPERIMENTAL DETAILS REMARK 245 RECONSTRUCTION METHOD : SINGLE PARTICLE REMARK 245 SPECIMEN TYPE : NULL REMARK 245 REMARK 245 ELECTRON MICROSCOPE SAMPLE REMARK 245 SAMPLE TYPE : PARTICLE REMARK 245 PARTICLE TYPE : POINT REMARK 245 NAME OF SAMPLE : PENTAMER OF THE GREEN-LIGHT REMARK 245 ABSORBING PROTEORHODOPSIN REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : 3.50 REMARK 245 SAMPLE SUPPORT DETAILS : NULL REMARK 245 SAMPLE VITRIFICATION DETAILS : NULL REMARK 245 SAMPLE BUFFER : NULL REMARK 245 PH : 7.50 REMARK 245 SAMPLE DETAILS : NULL REMARK 245 REMARK 245 DATA ACQUISITION REMARK 245 DATE OF EXPERIMENT : NULL REMARK 245 NUMBER OF MICROGRAPHS-IMAGES : NULL REMARK 245 TEMPERATURE (KELVIN) : NULL REMARK 245 MICROSCOPE MODEL : FEI TITAN KRIOS REMARK 245 DETECTOR TYPE : GATAN K3 (6K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : NULL REMARK 245 MAXIMUM DEFOCUS (NM) : NULL REMARK 245 MINIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 NOMINAL CS : NULL REMARK 245 IMAGING MODE : BRIGHT FIELD REMARK 245 ELECTRON DOSE (ELECTRONS NM**-2) : 136.00 REMARK 245 ILLUMINATION MODE : SPOT SCAN REMARK 245 NOMINAL MAGNIFICATION : NULL REMARK 245 CALIBRATED MAGNIFICATION : NULL REMARK 245 SOURCE : FIELD EMISSION GUN REMARK 245 ACCELERATION VOLTAGE (KV) : 300 REMARK 245 IMAGING DETAILS : NULL REMARK 247 REMARK 247 ELECTRON MICROSCOPY REMARK 247 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM ELECTRON REMARK 247 MICROSCOPY DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE REMARK 247 THAT CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES REMARK 247 ON THESE RECORDS ARE MEANINGLESS EXCEPT FOR THE CALCULATION REMARK 247 OF THE STRUCTURE FACTORS. REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: PENTAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: PENTAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 12060 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 42830 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -95.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D, E REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 MET A 18 REMARK 465 ALA A 19 REMARK 465 GLY A 20 REMARK 465 GLY A 21 REMARK 465 GLY A 22 REMARK 465 ASP A 23 REMARK 465 LEU A 24 REMARK 465 MET A 211 REMARK 465 GLY A 212 REMARK 465 ASP A 213 REMARK 465 GLY A 214 REMARK 465 GLY A 215 REMARK 465 SER A 216 REMARK 465 ALA A 217 REMARK 465 LEU A 218 REMARK 465 ALA A 250 REMARK 465 MET B 18 REMARK 465 ALA B 19 REMARK 465 GLY B 20 REMARK 465 GLY B 21 REMARK 465 GLY B 22 REMARK 465 ASP B 23 REMARK 465 LEU B 24 REMARK 465 MET B 211 REMARK 465 GLY B 212 REMARK 465 ASP B 213 REMARK 465 GLY B 214 REMARK 465 GLY B 215 REMARK 465 SER B 216 REMARK 465 ALA B 217 REMARK 465 LEU B 218 REMARK 465 ALA B 250 REMARK 465 MET C 18 REMARK 465 ALA C 19 REMARK 465 GLY C 20 REMARK 465 GLY C 21 REMARK 465 GLY C 22 REMARK 465 ASP C 23 REMARK 465 LEU C 24 REMARK 465 MET C 211 REMARK 465 GLY C 212 REMARK 465 ASP C 213 REMARK 465 GLY C 214 REMARK 465 GLY C 215 REMARK 465 SER C 216 REMARK 465 ALA C 217 REMARK 465 LEU C 218 REMARK 465 ALA C 250 REMARK 465 MET D 18 REMARK 465 ALA D 19 REMARK 465 GLY D 20 REMARK 465 GLY D 21 REMARK 465 GLY D 22 REMARK 465 ASP D 23 REMARK 465 LEU D 24 REMARK 465 MET D 211 REMARK 465 GLY D 212 REMARK 465 ASP D 213 REMARK 465 GLY D 214 REMARK 465 GLY D 215 REMARK 465 SER D 216 REMARK 465 ALA D 217 REMARK 465 LEU D 218 REMARK 465 ALA D 250 REMARK 465 MET E 18 REMARK 465 ALA E 19 REMARK 465 GLY E 20 REMARK 465 GLY E 21 REMARK 465 GLY E 22 REMARK 465 ASP E 23 REMARK 465 LEU E 24 REMARK 465 MET E 211 REMARK 465 GLY E 212 REMARK 465 ASP E 213 REMARK 465 GLY E 214 REMARK 465 GLY E 215 REMARK 465 SER E 216 REMARK 465 ALA E 217 REMARK 465 LEU E 218 REMARK 465 ALA E 250 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 OH TYR E 77 OD2 ASP E 228 2.19 REMARK 500 OH TYR C 77 OD2 ASP C 228 2.19 REMARK 500 OH TYR B 77 OD2 ASP B 228 2.19 REMARK 500 OH TYR A 77 OD2 ASP A 228 2.19 REMARK 500 OH TYR D 77 OD2 ASP D 228 2.19 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 TYR A 29 19.84 58.90 REMARK 500 THR A 118 -169.36 -165.13 REMARK 500 TYR B 29 19.86 58.88 REMARK 500 THR B 118 -169.37 -165.13 REMARK 500 TYR C 29 19.87 58.85 REMARK 500 THR C 118 -169.41 -165.13 REMARK 500 TYR D 29 19.84 58.96 REMARK 500 THR D 118 -169.38 -165.16 REMARK 500 TYR E 29 19.81 58.94 REMARK 500 THR E 118 -169.35 -165.12 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-11955 RELATED DB: EMDB REMARK 900 CRYO-EM STRUCTURE OF THE GREEN-LIGHT ABSORBING PROTEORHODOPSIN DBREF 7B03 A 19 250 UNP Q6J4G7 Q6J4G7_9BACT 19 250 DBREF 7B03 B 19 250 UNP Q6J4G7 Q6J4G7_9BACT 19 250 DBREF 7B03 C 19 250 UNP Q6J4G7 Q6J4G7_9BACT 19 250 DBREF 7B03 D 19 250 UNP Q6J4G7 Q6J4G7_9BACT 19 250 DBREF 7B03 E 19 250 UNP Q6J4G7 Q6J4G7_9BACT 19 250 SEQADV 7B03 MET A 18 UNP Q6J4G7 INITIATING METHIONINE SEQADV 7B03 MET B 18 UNP Q6J4G7 INITIATING METHIONINE SEQADV 7B03 MET C 18 UNP Q6J4G7 INITIATING METHIONINE SEQADV 7B03 MET D 18 UNP Q6J4G7 INITIATING METHIONINE SEQADV 7B03 MET E 18 UNP Q6J4G7 INITIATING METHIONINE SEQRES 1 A 233 MET ALA GLY GLY GLY ASP LEU ASP ALA SER ASP TYR THR SEQRES 2 A 233 GLY VAL SER PHE TRP LEU VAL THR ALA ALA LEU LEU ALA SEQRES 3 A 233 SER THR VAL PHE PHE PHE VAL GLU ARG ASP ARG VAL SER SEQRES 4 A 233 ALA LYS TRP LYS THR SER LEU THR VAL SER GLY LEU VAL SEQRES 5 A 233 THR GLY ILE ALA PHE TRP HIS TYR MET TYR MET ARG GLY SEQRES 6 A 233 VAL TRP ILE GLU THR GLY ASP SER PRO THR VAL PHE ARG SEQRES 7 A 233 TYR ILE ASP TRP LEU LEU THR VAL PRO LEU LEU ILE CYS SEQRES 8 A 233 GLU PHE TYR LEU ILE LEU ALA ALA ALA THR ASN VAL ALA SEQRES 9 A 233 GLY SER LEU PHE LYS LYS LEU LEU VAL GLY SER LEU VAL SEQRES 10 A 233 MET LEU VAL PHE GLY TYR MET GLY GLU ALA GLY ILE MET SEQRES 11 A 233 ALA ALA TRP PRO ALA PHE ILE ILE GLY CYS LEU ALA TRP SEQRES 12 A 233 VAL TYR MET ILE TYR GLU LEU TRP ALA GLY GLU GLY LYS SEQRES 13 A 233 SER ALA CYS ASN THR ALA SER PRO ALA VAL GLN SER ALA SEQRES 14 A 233 TYR ASN THR MET MET TYR ILE ILE ILE PHE GLY TRP ALA SEQRES 15 A 233 ILE TYR PRO VAL GLY TYR PHE THR GLY TYR LEU MET GLY SEQRES 16 A 233 ASP GLY GLY SER ALA LEU ASN LEU ASN LEU ILE TYR ASN SEQRES 17 A 233 LEU ALA ASP PHE VAL ASN LYS ILE LEU PHE GLY LEU ILE SEQRES 18 A 233 ILE TRP ASN VAL ALA VAL LYS GLU SER SER ASN ALA SEQRES 1 B 233 MET ALA GLY GLY GLY ASP LEU ASP ALA SER ASP TYR THR SEQRES 2 B 233 GLY VAL SER PHE TRP LEU VAL THR ALA ALA LEU LEU ALA SEQRES 3 B 233 SER THR VAL PHE PHE PHE VAL GLU ARG ASP ARG VAL SER SEQRES 4 B 233 ALA LYS TRP LYS THR SER LEU THR VAL SER GLY LEU VAL SEQRES 5 B 233 THR GLY ILE ALA PHE TRP HIS TYR MET TYR MET ARG GLY SEQRES 6 B 233 VAL TRP ILE GLU THR GLY ASP SER PRO THR VAL PHE ARG SEQRES 7 B 233 TYR ILE ASP TRP LEU LEU THR VAL PRO LEU LEU ILE CYS SEQRES 8 B 233 GLU PHE TYR LEU ILE LEU ALA ALA ALA THR ASN VAL ALA SEQRES 9 B 233 GLY SER LEU PHE LYS LYS LEU LEU VAL GLY SER LEU VAL SEQRES 10 B 233 MET LEU VAL PHE GLY TYR MET GLY GLU ALA GLY ILE MET SEQRES 11 B 233 ALA ALA TRP PRO ALA PHE ILE ILE GLY CYS LEU ALA TRP SEQRES 12 B 233 VAL TYR MET ILE TYR GLU LEU TRP ALA GLY GLU GLY LYS SEQRES 13 B 233 SER ALA CYS ASN THR ALA SER PRO ALA VAL GLN SER ALA SEQRES 14 B 233 TYR ASN THR MET MET TYR ILE ILE ILE PHE GLY TRP ALA SEQRES 15 B 233 ILE TYR PRO VAL GLY TYR PHE THR GLY TYR LEU MET GLY SEQRES 16 B 233 ASP GLY GLY SER ALA LEU ASN LEU ASN LEU ILE TYR ASN SEQRES 17 B 233 LEU ALA ASP PHE VAL ASN LYS ILE LEU PHE GLY LEU ILE SEQRES 18 B 233 ILE TRP ASN VAL ALA VAL LYS GLU SER SER ASN ALA SEQRES 1 C 233 MET ALA GLY GLY GLY ASP LEU ASP ALA SER ASP TYR THR SEQRES 2 C 233 GLY VAL SER PHE TRP LEU VAL THR ALA ALA LEU LEU ALA SEQRES 3 C 233 SER THR VAL PHE PHE PHE VAL GLU ARG ASP ARG VAL SER SEQRES 4 C 233 ALA LYS TRP LYS THR SER LEU THR VAL SER GLY LEU VAL SEQRES 5 C 233 THR GLY ILE ALA PHE TRP HIS TYR MET TYR MET ARG GLY SEQRES 6 C 233 VAL TRP ILE GLU THR GLY ASP SER PRO THR VAL PHE ARG SEQRES 7 C 233 TYR ILE ASP TRP LEU LEU THR VAL PRO LEU LEU ILE CYS SEQRES 8 C 233 GLU PHE TYR LEU ILE LEU ALA ALA ALA THR ASN VAL ALA SEQRES 9 C 233 GLY SER LEU PHE LYS LYS LEU LEU VAL GLY SER LEU VAL SEQRES 10 C 233 MET LEU VAL PHE GLY TYR MET GLY GLU ALA GLY ILE MET SEQRES 11 C 233 ALA ALA TRP PRO ALA PHE ILE ILE GLY CYS LEU ALA TRP SEQRES 12 C 233 VAL TYR MET ILE TYR GLU LEU TRP ALA GLY GLU GLY LYS SEQRES 13 C 233 SER ALA CYS ASN THR ALA SER PRO ALA VAL GLN SER ALA SEQRES 14 C 233 TYR ASN THR MET MET TYR ILE ILE ILE PHE GLY TRP ALA SEQRES 15 C 233 ILE TYR PRO VAL GLY TYR PHE THR GLY TYR LEU MET GLY SEQRES 16 C 233 ASP GLY GLY SER ALA LEU ASN LEU ASN LEU ILE TYR ASN SEQRES 17 C 233 LEU ALA ASP PHE VAL ASN LYS ILE LEU PHE GLY LEU ILE SEQRES 18 C 233 ILE TRP ASN VAL ALA VAL LYS GLU SER SER ASN ALA SEQRES 1 D 233 MET ALA GLY GLY GLY ASP LEU ASP ALA SER ASP TYR THR SEQRES 2 D 233 GLY VAL SER PHE TRP LEU VAL THR ALA ALA LEU LEU ALA SEQRES 3 D 233 SER THR VAL PHE PHE PHE VAL GLU ARG ASP ARG VAL SER SEQRES 4 D 233 ALA LYS TRP LYS THR SER LEU THR VAL SER GLY LEU VAL SEQRES 5 D 233 THR GLY ILE ALA PHE TRP HIS TYR MET TYR MET ARG GLY SEQRES 6 D 233 VAL TRP ILE GLU THR GLY ASP SER PRO THR VAL PHE ARG SEQRES 7 D 233 TYR ILE ASP TRP LEU LEU THR VAL PRO LEU LEU ILE CYS SEQRES 8 D 233 GLU PHE TYR LEU ILE LEU ALA ALA ALA THR ASN VAL ALA SEQRES 9 D 233 GLY SER LEU PHE LYS LYS LEU LEU VAL GLY SER LEU VAL SEQRES 10 D 233 MET LEU VAL PHE GLY TYR MET GLY GLU ALA GLY ILE MET SEQRES 11 D 233 ALA ALA TRP PRO ALA PHE ILE ILE GLY CYS LEU ALA TRP SEQRES 12 D 233 VAL TYR MET ILE TYR GLU LEU TRP ALA GLY GLU GLY LYS SEQRES 13 D 233 SER ALA CYS ASN THR ALA SER PRO ALA VAL GLN SER ALA SEQRES 14 D 233 TYR ASN THR MET MET TYR ILE ILE ILE PHE GLY TRP ALA SEQRES 15 D 233 ILE TYR PRO VAL GLY TYR PHE THR GLY TYR LEU MET GLY SEQRES 16 D 233 ASP GLY GLY SER ALA LEU ASN LEU ASN LEU ILE TYR ASN SEQRES 17 D 233 LEU ALA ASP PHE VAL ASN LYS ILE LEU PHE GLY LEU ILE SEQRES 18 D 233 ILE TRP ASN VAL ALA VAL LYS GLU SER SER ASN ALA SEQRES 1 E 233 MET ALA GLY GLY GLY ASP LEU ASP ALA SER ASP TYR THR SEQRES 2 E 233 GLY VAL SER PHE TRP LEU VAL THR ALA ALA LEU LEU ALA SEQRES 3 E 233 SER THR VAL PHE PHE PHE VAL GLU ARG ASP ARG VAL SER SEQRES 4 E 233 ALA LYS TRP LYS THR SER LEU THR VAL SER GLY LEU VAL SEQRES 5 E 233 THR GLY ILE ALA PHE TRP HIS TYR MET TYR MET ARG GLY SEQRES 6 E 233 VAL TRP ILE GLU THR GLY ASP SER PRO THR VAL PHE ARG SEQRES 7 E 233 TYR ILE ASP TRP LEU LEU THR VAL PRO LEU LEU ILE CYS SEQRES 8 E 233 GLU PHE TYR LEU ILE LEU ALA ALA ALA THR ASN VAL ALA SEQRES 9 E 233 GLY SER LEU PHE LYS LYS LEU LEU VAL GLY SER LEU VAL SEQRES 10 E 233 MET LEU VAL PHE GLY TYR MET GLY GLU ALA GLY ILE MET SEQRES 11 E 233 ALA ALA TRP PRO ALA PHE ILE ILE GLY CYS LEU ALA TRP SEQRES 12 E 233 VAL TYR MET ILE TYR GLU LEU TRP ALA GLY GLU GLY LYS SEQRES 13 E 233 SER ALA CYS ASN THR ALA SER PRO ALA VAL GLN SER ALA SEQRES 14 E 233 TYR ASN THR MET MET TYR ILE ILE ILE PHE GLY TRP ALA SEQRES 15 E 233 ILE TYR PRO VAL GLY TYR PHE THR GLY TYR LEU MET GLY SEQRES 16 E 233 ASP GLY GLY SER ALA LEU ASN LEU ASN LEU ILE TYR ASN SEQRES 17 E 233 LEU ALA ASP PHE VAL ASN LYS ILE LEU PHE GLY LEU ILE SEQRES 18 E 233 ILE TRP ASN VAL ALA VAL LYS GLU SER SER ASN ALA HET RET A 301 20 HET RET B 301 20 HET RET C 301 20 HET RET D 301 20 HET RET E 301 20 HETNAM RET RETINAL FORMUL 6 RET 5(C20 H28 O) HELIX 1 AA1 THR A 30 ASP A 53 1 24 HELIX 2 AA2 TRP A 59 THR A 87 1 29 HELIX 3 AA3 PRO A 91 THR A 118 1 28 HELIX 4 AA4 GLY A 122 ALA A 144 1 23 HELIX 5 AA5 ALA A 148 ASN A 177 1 30 HELIX 6 AA6 SER A 180 GLY A 208 1 29 HELIX 7 AA7 ASN A 219 ASN A 249 1 31 HELIX 8 AA8 THR B 30 ASP B 53 1 24 HELIX 9 AA9 TRP B 59 THR B 87 1 29 HELIX 10 AB1 PRO B 91 THR B 118 1 28 HELIX 11 AB2 GLY B 122 ALA B 144 1 23 HELIX 12 AB3 ALA B 148 ASN B 177 1 30 HELIX 13 AB4 SER B 180 GLY B 208 1 29 HELIX 14 AB5 ASN B 219 ASN B 249 1 31 HELIX 15 AB6 THR C 30 ASP C 53 1 24 HELIX 16 AB7 TRP C 59 THR C 87 1 29 HELIX 17 AB8 PRO C 91 THR C 118 1 28 HELIX 18 AB9 GLY C 122 ALA C 144 1 23 HELIX 19 AC1 ALA C 148 ASN C 177 1 30 HELIX 20 AC2 SER C 180 GLY C 208 1 29 HELIX 21 AC3 ASN C 219 ASN C 249 1 31 HELIX 22 AC4 THR D 30 ASP D 53 1 24 HELIX 23 AC5 TRP D 59 THR D 87 1 29 HELIX 24 AC6 PRO D 91 THR D 118 1 28 HELIX 25 AC7 GLY D 122 ALA D 144 1 23 HELIX 26 AC8 ALA D 148 ASN D 177 1 30 HELIX 27 AC9 SER D 180 GLY D 208 1 29 HELIX 28 AD1 ASN D 219 ASN D 249 1 31 HELIX 29 AD2 THR E 30 ASP E 53 1 24 HELIX 30 AD3 TRP E 59 THR E 87 1 29 HELIX 31 AD4 PRO E 91 THR E 118 1 28 HELIX 32 AD5 GLY E 122 ALA E 144 1 23 HELIX 33 AD6 ALA E 148 ASN E 177 1 30 HELIX 34 AD7 SER E 180 GLY E 208 1 29 HELIX 35 AD8 ASN E 219 ASN E 249 1 31 LINK NZ LYS A 232 C15 RET A 301 1555 1555 1.34 LINK NZ LYS B 232 C15 RET B 301 1555 1555 1.34 LINK NZ LYS C 232 C15 RET C 301 1555 1555 1.34 LINK NZ LYS D 232 C15 RET D 301 1555 1555 1.34 LINK NZ LYS E 232 C15 RET E 301 1555 1555 1.34 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000