2K2N - Header Asymmetric Unit

HEADER TRANSFERASE 04-APR-08 2K2N

TITLE SOLUTION STRUCTURE OF A CYANOBACTERIAL PHYTOCHROME GAF TITLE 2 DOMAIN IN THE RED LIGHT-ABSORBING GROUND STATE

COMPND MOL_ID: 1; COMPND 2 MOLECULE: SENSOR PROTEIN; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: GAF DOMAIN (UNP RESIDUES 31-200); COMPND 5 SYNONYM: SYB-CPH1(GAF); COMPND 6 EC: 2.7.13.3; COMPND 7 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SYNECHOCOCCUS SP.; SOURCE 3 ORGANISM_TAXID: 316278; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 7 EXPRESSION_SYSTEM_VECTOR: PGEX-4T

KEYWDS PHYTOCHROME, GAF DOMAIN, PHYCOCYANOBILIN, PCB, KEYWDS 2 BACTERIOPHYTOCHROME, CYANOBACTERIAL PHYTOCHROME, KINASE, KEYWDS 3 PHOSPHOPROTEIN, TRANSFERASE

EXPDTA SOLUTION NMR

NUMMDL 20

AUTHOR C.C.CORNILESCU,G.CORNILESCU,A.T.ULIJASZ,R.D.VIERSTRA, AUTHOR 2 J.L.MARKLEY

REVDAT 5 29-SEP-09 2K2N 1 ATOM REVDAT 4 09-JUN-09 2K2N 1 REVDAT REVDAT 3 24-FEB-09 2K2N 1 VERSN REVDAT 2 23-DEC-08 2K2N 1 JRNL REVDAT 1 23-SEP-08 2K2N 0

JRNL AUTH G.CORNILESCU,A.T.ULIJASZ,C.C.CORNILESCU, JRNL AUTH 2 J.L.MARKLEY,R.D.VIERSTRA JRNL TITL SOLUTION STRUCTURE OF A CYANOBACTERIAL PHYTOCHROME JRNL TITL 2 GAF DOMAIN IN THE RED-LIGHT-ABSORBING GROUND STATE. JRNL REF J.MOL.BIOL. V. 383 403 2008 JRNL REFN ISSN 0022-2836 JRNL PMID 18762196 JRNL DOI 10.1016/J.JMB.2008.08.034

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR_NIH REMARK 3 AUTHORS : SCHWIETERS, KUSZEWSKI, TJANDRA AND CLORE REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 2K2N COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 10-APR-08. REMARK 100 THE RCSB ID CODE IS RCSB100598.

REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 298; 306 REMARK 210 PH : 8.5; 8.5 REMARK 210 IONIC STRENGTH : 0.01; 0.01 REMARK 210 PRESSURE : AMBIENT; AMBIENT REMARK 210 SAMPLE CONTENTS : 1.7 MM [U-13C; U-15N] SYB- REMARK 210 CPH1(GAF), 1.7 MM REMARK 210 PHYCOCYANOBILIN, 10 MM [U-2H] REMARK 210 TRIS-DCL, 0.03 % NAN3, 93% REMARK 210 H2O/7% D2O; 2 MM SYB-CPH1(GAF) REMARK 210 , 2 MM [U-15N] REMARK 210 PHYCOCYANOBILIN, 10 MM [U-2H] REMARK 210 TRIS-DCL, 0.03 % NAN3, 93% REMARK 210 H2O/7% D2O; 1 MM SYB-CPH1(GAF) REMARK 210 , 1 MM [U-13C] REMARK 210 PHYCOCYANOBILIN, 10 MM [U-2H] REMARK 210 TRIS-DCL, 0.03 % NAN3, 100% REMARK 210 D2O; 1 MM [U-13C; U-15N] SYB- REMARK 210 CPH1(GAF), 1 MM REMARK 210 PHYCOCYANOBILIN, 10 MM [U-2H] REMARK 210 TRIS-DCL, 0.03 % NAN3, 93% REMARK 210 H2O/7% D2O; 1 MM [U-13C; U- REMARK 210 15N] SYB-CPH1(GAF), 1 MM REMARK 210 PHYCOCYANOBILIN, 10 MM [U-2H] REMARK 210 TRIS-DCL, 0.03 % NAN3, 93% REMARK 210 H2O/7% D2O; 0.5 MM SYB- REMARK 210 CPH1(GAF), 0.5 MM [U-13C] REMARK 210 PHYCOCYANOBILIN, 10 MM [U-2H] REMARK 210 TRIS-DCL, 0.03 % NAN3, 93% REMARK 210 H2O/7% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D 1H-15N HSQC; 3D HNCO; 3D REMARK 210 CBCA(CO)NH; 3D HNCACB; 3D REMARK 210 HBHA(CO)NH; 3D H(CCO)NH; 3D REMARK 210 C(CO)NH; 3D HCCH-TOCSY; 3D 1H- REMARK 210 15N NOESY; 3D 1H-13C NOESY; 3D REMARK 210 HNCO ANTIPHASE; 3D HCA(CO)N REMARK 210 ANTIPHASE; J MODULATED 2D 1H- REMARK 210 13C HSQC REMARK 210 SPECTROMETER FIELD STRENGTH : 800 MHZ; 600 MHZ REMARK 210 SPECTROMETER MODEL : INOVA; AVANCE REMARK 210 SPECTROMETER MANUFACTURER : VARIAN; BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : XWINNMR, VNMRJ, NMRPIPE, REMARK 210 NMRDRAW, PIPP, TALOS, X-PLOR_ REMARK 210 NIH, MOLMOL, PROCHECKNMR REMARK 210 METHOD USED : TORSION ANGLE MOLECULAR REMARK 210 DYNAMICS, INTERNAL VARIABLE REMARK 210 DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 100 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST REMARK 210 ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: NULL

REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS.

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 1 PRO A 75 154.21 -48.24 REMARK 500 1 PRO A 88 -155.00 -51.47 REMARK 500 1 VAL A 100 105.44 -165.71 REMARK 500 1 GLN A 109 72.07 43.89 REMARK 500 1 SER A 114 25.74 -72.87 REMARK 500 1 SER A 118 -164.24 39.93 REMARK 500 1 ARG A 133 68.58 17.83 REMARK 500 1 PRO A 155 150.21 -48.14 REMARK 500 2 GLU A 72 43.37 -71.78 REMARK 500 2 PRO A 88 -164.86 -73.06 REMARK 500 2 GLN A 99 75.31 42.58 REMARK 500 2 VAL A 100 115.97 175.79 REMARK 500 2 GLN A 109 70.74 44.51 REMARK 500 2 TRP A 119 -99.29 -86.45 REMARK 500 2 ARG A 124 -178.10 76.32 REMARK 500 2 PRO A 126 -131.78 -50.50 REMARK 500 2 ARG A 133 71.61 60.13 REMARK 500 2 ARG A 174 104.17 -39.33 REMARK 500 2 PRO A 175 167.44 -48.81 REMARK 500 3 GLU A 72 38.96 -78.25 REMARK 500 3 PRO A 88 -169.48 -70.19 REMARK 500 3 GLN A 99 77.40 38.51 REMARK 500 3 VAL A 100 114.48 179.32 REMARK 500 3 VAL A 102 145.72 -170.32 REMARK 500 3 GLN A 109 69.45 36.60 REMARK 500 3 SER A 114 -77.48 38.48 REMARK 500 3 GLN A 115 107.49 -54.23 REMARK 500 3 PRO A 126 153.94 -47.59 REMARK 500 3 ASP A 136 152.74 -42.43 REMARK 500 3 ARG A 174 129.66 -172.31 REMARK 500 4 GLN A 99 81.66 42.43 REMARK 500 4 VAL A 100 114.48 174.41 REMARK 500 4 VAL A 102 146.68 -170.76 REMARK 500 4 ALA A 108 -8.07 -59.47 REMARK 500 4 SER A 118 176.20 50.39 REMARK 500 4 ARG A 124 83.28 51.45 REMARK 500 4 GLN A 132 153.74 179.50 REMARK 500 4 PRO A 173 -98.82 -74.83 REMARK 500 4 ARG A 174 144.94 56.38 REMARK 500 5 ASP A 49 -39.82 -38.03 REMARK 500 5 GLU A 72 46.82 -169.22 REMARK 500 5 PRO A 88 -159.83 -73.89 REMARK 500 5 GLN A 99 74.18 39.55 REMARK 500 5 VAL A 100 121.22 174.27 REMARK 500 5 ARG A 101 147.65 -171.04 REMARK 500 5 GLN A 109 72.01 36.34 REMARK 500 5 GLU A 117 134.83 -171.51 REMARK 500 5 SER A 118 -23.95 -165.43 REMARK 500 5 LEU A 121 93.64 47.39 REMARK 500 5 ARG A 124 -142.76 80.54 REMARK 500 5 ARG A 133 89.87 64.11 REMARK 500 5 ASP A 136 151.76 -43.32 REMARK 500 5 LEU A 156 56.15 -111.85 REMARK 500 6 GLU A 72 52.09 -152.17 REMARK 500 6 PRO A 88 -165.57 -72.81 REMARK 500 6 GLU A 89 -60.99 -107.54 REMARK 500 6 GLN A 99 82.53 40.39 REMARK 500 6 VAL A 100 116.79 175.98 REMARK 500 6 GLN A 109 71.89 36.03 REMARK 500 6 SER A 114 -10.48 -45.53 REMARK 500 6 GLN A 115 77.00 -116.27 REMARK 500 6 GLU A 117 -99.99 -116.49 REMARK 500 6 SER A 118 93.62 39.59 REMARK 500 6 TRP A 119 -93.13 40.65 REMARK 500 6 LEU A 127 -140.30 -151.81 REMARK 500 6 ARG A 133 77.91 15.99 REMARK 500 6 ALA A 171 36.81 -86.73 REMARK 500 6 ARG A 174 97.75 -176.57 REMARK 500 6 PRO A 175 155.64 -49.98 REMARK 500 7 GLU A 72 55.39 31.18 REMARK 500 7 PRO A 88 -171.37 -48.76 REMARK 500 7 GLN A 99 81.42 37.58 REMARK 500 7 VAL A 100 97.72 176.49 REMARK 500 7 GLN A 109 73.44 45.17 REMARK 500 7 SER A 114 -3.22 -55.41 REMARK 500 7 PRO A 116 134.70 -34.48 REMARK 500 7 GLU A 117 -0.90 -171.23 REMARK 500 7 SER A 118 -90.27 -64.31 REMARK 500 7 TRP A 119 8.56 53.05 REMARK 500 7 ARG A 133 -52.29 160.84 REMARK 500 7 PRO A 155 152.09 -47.27 REMARK 500 7 ARG A 174 98.06 -32.54 REMARK 500 8 THR A 48 -97.18 -62.70 REMARK 500 8 ASP A 49 -48.50 -155.13 REMARK 500 8 GLU A 72 20.98 -72.54 REMARK 500 8 PRO A 88 -154.62 -49.74 REMARK 500 8 GLN A 99 73.60 40.50 REMARK 500 8 VAL A 100 118.45 176.10 REMARK 500 8 GLN A 109 72.56 46.66 REMARK 500 8 SER A 114 22.47 -79.93 REMARK 500 8 SER A 118 -124.27 -173.21 REMARK 500 8 LEU A 121 5.51 54.42 REMARK 500 8 ARG A 124 97.88 43.91 REMARK 500 8 PRO A 134 148.93 -36.94 REMARK 500 8 ALA A 171 45.64 -90.17 REMARK 500 8 ARG A 174 104.54 -40.97 REMARK 500 9 GLU A 72 43.02 -71.78 REMARK 500 9 PRO A 88 -155.47 -73.83 REMARK 500 9 GLU A 89 -68.78 -107.76 REMARK 500 9 GLN A 99 80.49 39.21 REMARK 500 9 VAL A 100 120.52 173.69 REMARK 500 9 PRO A 126 84.41 -42.92 REMARK 500 9 GLU A 129 76.94 61.96 REMARK 500 9 ASP A 136 153.48 -41.30 REMARK 500 9 ARG A 174 79.42 -172.82 REMARK 500 10 GLU A 72 39.36 -70.96 REMARK 500 10 PRO A 88 173.97 -46.55 REMARK 500 10 GLN A 99 82.85 47.02 REMARK 500 10 VAL A 100 103.80 174.13 REMARK 500 10 VAL A 102 147.25 -171.60 REMARK 500 10 PRO A 116 153.30 -36.10 REMARK 500 10 ALA A 123 0.75 -61.40 REMARK 500 10 ARG A 124 -65.71 62.71 REMARK 500 10 ASP A 136 151.22 -46.53 REMARK 500 10 PRO A 175 164.83 -48.75 REMARK 500 11 GLU A 72 40.00 -79.26 REMARK 500 11 PRO A 88 -162.68 -48.11 REMARK 500 11 GLN A 99 74.05 34.65 REMARK 500 11 VAL A 100 117.84 177.17 REMARK 500 11 ARG A 101 145.36 -176.00 REMARK 500 11 GLN A 109 72.06 44.12 REMARK 500 11 SER A 114 5.50 -57.01 REMARK 500 11 ALA A 123 16.26 -68.91 REMARK 500 11 ARG A 124 92.75 41.92 REMARK 500 11 PRO A 130 150.15 -33.39 REMARK 500 12 GLU A 72 25.69 -79.59 REMARK 500 12 PRO A 88 -157.00 -51.89 REMARK 500 12 GLN A 99 79.72 38.80 REMARK 500 12 VAL A 100 102.14 -177.11 REMARK 500 12 GLN A 109 72.59 45.74 REMARK 500 12 LEU A 121 -149.90 -164.64 REMARK 500 12 PRO A 126 89.96 -44.22 REMARK 500 12 LEU A 127 -97.65 -136.94 REMARK 500 12 GLU A 129 57.62 -160.24 REMARK 500 12 ALA A 171 41.18 -82.43 REMARK 500 12 PRO A 173 -75.01 -41.42 REMARK 500 12 ARG A 174 84.59 33.65 REMARK 500 13 HIS A 61 -104.44 -64.14 REMARK 500 13 GLN A 99 79.48 41.58 REMARK 500 13 VAL A 100 107.07 179.78 REMARK 500 13 GLN A 109 72.20 45.86 REMARK 500 13 PRO A 116 -13.24 -40.90 REMARK 500 13 GLU A 117 113.59 65.04 REMARK 500 13 PRO A 126 -27.02 -38.25 REMARK 500 13 LEU A 127 81.83 51.55 REMARK 500 13 PRO A 137 -20.88 -39.45 REMARK 500 13 HIS A 158 -171.51 -68.73 REMARK 500 13 PRO A 173 22.36 -77.21 REMARK 500 13 PRO A 175 153.01 -46.70 REMARK 500 14 THR A 48 -96.80 -63.64 REMARK 500 14 ASP A 49 -47.20 -155.60 REMARK 500 14 GLU A 72 44.48 -72.35 REMARK 500 14 PRO A 88 -171.48 -49.47 REMARK 500 14 GLN A 99 79.89 44.16 REMARK 500 14 VAL A 100 107.72 -179.36 REMARK 500 14 VAL A 102 148.51 -170.43 REMARK 500 14 GLN A 109 71.42 45.21 REMARK 500 14 GLU A 117 101.97 50.82 REMARK 500 14 VAL A 125 87.56 -150.45 REMARK 500 14 GLN A 132 117.06 63.86 REMARK 500 14 ARG A 133 76.00 36.20 REMARK 500 14 PRO A 173 -73.23 -39.54 REMARK 500 14 ARG A 174 88.83 35.41 REMARK 500 14 PRO A 175 162.86 -49.87 REMARK 500 15 ILE A 87 50.63 -171.42 REMARK 500 15 GLU A 89 -82.32 -90.67 REMARK 500 15 GLN A 99 81.34 35.67 REMARK 500 15 VAL A 100 108.11 -174.64 REMARK 500 15 VAL A 102 135.93 -171.83 REMARK 500 15 GLN A 109 72.71 46.40 REMARK 500 15 SER A 114 16.17 -67.10 REMARK 500 15 GLN A 115 79.45 -119.85 REMARK 500 15 ARG A 133 65.72 34.79 REMARK 500 15 HIS A 158 -176.92 -69.04 REMARK 500 16 HIS A 61 -100.66 -63.36 REMARK 500 16 GLU A 72 4.31 -65.08 REMARK 500 16 PRO A 75 157.07 -48.28 REMARK 500 16 PRO A 88 -176.37 -46.80 REMARK 500 16 GLN A 99 78.28 41.24 REMARK 500 16 VAL A 100 116.12 171.42 REMARK 500 16 GLN A 109 70.37 44.50 REMARK 500 16 PRO A 116 -25.06 -36.39 REMARK 500 16 SER A 118 -101.61 -103.55 REMARK 500 16 LEU A 121 -95.78 41.50 REMARK 500 16 ARG A 124 75.89 177.04 REMARK 500 16 PRO A 126 147.07 -37.42 REMARK 500 16 LEU A 127 -76.84 62.48 REMARK 500 16 GLU A 129 -44.78 178.89 REMARK 500 16 GLN A 132 88.73 -56.52 REMARK 500 16 LEU A 156 58.98 -102.37 REMARK 500 17 HIS A 61 -104.93 -64.09 REMARK 500 17 ALA A 66 113.02 -160.09 REMARK 500 17 GLU A 72 45.46 -73.09 REMARK 500 17 PRO A 88 -161.97 -74.89 REMARK 500 17 GLN A 99 77.99 38.06 REMARK 500 17 VAL A 100 113.11 176.35 REMARK 500 17 ARG A 101 141.76 -175.31 REMARK 500 17 GLN A 109 70.26 45.94 REMARK 500 17 SER A 114 -4.94 -52.74 REMARK 500 17 LEU A 121 -133.17 -90.48 REMARK 500 17 ARG A 124 153.88 64.82 REMARK 500 17 LEU A 127 -97.47 42.49 REMARK 500 17 GLN A 132 64.28 71.21 REMARK 500 17 ARG A 133 82.33 55.03 REMARK 500 17 PRO A 155 150.37 -47.04 REMARK 500 18 GLU A 72 25.76 -73.94 REMARK 500 18 GLN A 99 86.73 45.34 REMARK 500 18 VAL A 100 99.47 177.54 REMARK 500 18 PRO A 116 85.67 -39.00 REMARK 500 18 GLU A 117 134.79 -171.95 REMARK 500 18 PRO A 130 151.30 -37.05 REMARK 500 18 PRO A 137 -16.42 -42.49 REMARK 500 19 ALA A 66 119.71 -160.28 REMARK 500 19 GLU A 72 40.24 -73.61 REMARK 500 19 PRO A 88 -167.26 -74.39 REMARK 500 19 GLU A 89 -60.06 -107.63 REMARK 500 19 GLN A 99 71.45 45.15 REMARK 500 19 VAL A 100 113.86 -164.26 REMARK 500 19 GLN A 109 70.63 45.26 REMARK 500 19 PRO A 116 99.33 -36.26 REMARK 500 19 GLU A 117 -121.89 44.35 REMARK 500 19 LEU A 121 73.98 42.07 REMARK 500 19 GLN A 132 114.80 63.86 REMARK 500 19 ARG A 133 77.38 29.00 REMARK 500 19 PRO A 137 -13.52 -49.18 REMARK 500 19 PRO A 155 151.68 -47.22 REMARK 500 19 ALA A 171 33.63 -87.43 REMARK 500 20 PRO A 58 -14.52 -43.83 REMARK 500 20 PRO A 88 -162.35 -51.46 REMARK 500 20 GLN A 99 83.31 41.64 REMARK 500 20 VAL A 100 113.56 174.70 REMARK 500 20 GLN A 109 71.12 44.72 REMARK 500 20 SER A 118 156.02 55.29 REMARK 500 20 TRP A 119 -152.05 40.33 REMARK 500 20 LEU A 121 -78.30 58.92 REMARK 500 20 PRO A 126 154.35 -45.37 REMARK 500 20 PRO A 130 151.00 -38.09 REMARK 500 20 PRO A 173 92.61 -69.18 REMARK 500 20 PRO A 175 152.36 -49.97 REMARK 500 REMARK 500 REMARK: NULL

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYC A 203

DBREF 2K2N A 31 200 UNP Q2JIZ5 Q2JIZ5_SYNJB 31 200

SEQADV 2K2N SER A 201 UNP Q2JIZ5 EXPRESSION TAG SEQADV 2K2N LEU A 202 UNP Q2JIZ5 EXPRESSION TAG

SEQRES 1 A 172 LEU ASP GLN ILE LEU ARG ALA THR VAL GLU GLU VAL ARG SEQRES 2 A 172 ALA PHE LEU GLY THR ASP ARG VAL LYS VAL TYR ARG PHE SEQRES 3 A 172 ASP PRO GLU GLY HIS GLY THR VAL VAL ALA GLU ALA ARG SEQRES 4 A 172 GLY GLY GLU ARG LEU PRO SER LEU LEU GLY LEU THR PHE SEQRES 5 A 172 PRO ALA GLY ASP ILE PRO GLU GLU ALA ARG ARG LEU PHE SEQRES 6 A 172 ARG LEU ALA GLN VAL ARG VAL ILE VAL ASP VAL GLU ALA SEQRES 7 A 172 GLN SER ARG SER ILE SER GLN PRO GLU SER TRP GLY LEU SEQRES 8 A 172 SER ALA ARG VAL PRO LEU GLY GLU PRO LEU GLN ARG PRO SEQRES 9 A 172 VAL ASP PRO CYS HIS VAL HIS TYR LEU LYS SER MET GLY SEQRES 10 A 172 VAL ALA SER SER LEU VAL VAL PRO LEU MET HIS HIS GLN SEQRES 11 A 172 GLU LEU TRP GLY LEU LEU VAL SER HIS HIS ALA GLU PRO SEQRES 12 A 172 ARG PRO TYR SER GLN GLU GLU LEU GLN VAL VAL GLN LEU SEQRES 13 A 172 LEU ALA ASP GLN VAL SER ILE ALA ILE ALA GLN ALA GLU SEQRES 14 A 172 LEU SER LEU

HET CYC A 203 81

HETNAM CYC PHYCOCYANOBILIN

FORMUL 2 CYC C33 H40 N4 O6

HELIX 1 1 LEU A 31 GLY A 47 1 17 HELIX 2 2 GLU A 89 ALA A 98 1 10 HELIX 3 3 ASP A 105 GLN A 109 5 5 HELIX 4 4 ASP A 136 SER A 145 1 10 HELIX 5 5 SER A 177 LEU A 202 1 26

SHEET 1 A 5 THR A 63 ARG A 69 0 SHEET 2 A 5 ARG A 50 ARG A 55 -1 N VAL A 53 O ALA A 66 SHEET 3 A 5 GLY A 164 HIS A 170 -1 O LEU A 165 N TYR A 54 SHEET 4 A 5 SER A 150 VAL A 153 -1 N LEU A 152 O SER A 168 SHEET 5 A 5 ARG A 101 VAL A 102 -1 N ARG A 101 O VAL A 153

LINK SG CYS A 138 CAC CYC A 203 1555 1555 1.85

SITE 1 AC1 14 LYS A 52 TYR A 54 PHE A 82 ASP A 86 SITE 2 AC1 14 PRO A 88 ALA A 91 ARG A 101 ILE A 103 SITE 3 AC1 14 VAL A 135 ASP A 136 CYS A 138 HIS A 139 SITE 4 AC1 14 VAL A 153 VAL A 167

CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 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