1NBX - Header Asymmetric Unit

HEADER BIOTIN-BINDING PROTEIN 04-DEC-02 1NBX

TITLE STREPTAVIDIN MUTANT Y43A AT 1.70A RESOLUTION

COMPND MOL_ID: 1; COMPND 2 MOLECULE: STREPTAVIDIN; COMPND 3 CHAIN: A, B, C, D; COMPND 4 FRAGMENT: CORE STREPTAVIDIN, RESIDUES 13-139; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STREPTOMYCES AVIDINII; SOURCE 3 ORGANISM_TAXID: 1895; SOURCE 4 GENE: CORE STREPTAVIDIN; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET21A

KEYWDS TETRAMER, BIOTIN-BINDING PROTEIN

EXPDTA X-RAY DIFFRACTION

AUTHOR I.LE TRONG,S.FREITAG,L.A.KLUMB,V.CHU,P.S.STAYTON, AUTHOR 2 R.E.STENKAMP

REVDAT 2 24-FEB-09 1NBX 1 VERSN REVDAT 1 02-SEP-03 1NBX 0

JRNL AUTH I.LE TRONG,S.FREITAG,L.A.KLUMB,V.CHU,P.S.STAYTON, JRNL AUTH 2 R.E.STENKAMP JRNL TITL STRUCTURAL STUDIES OF HYDROGEN BONDS IN THE JRNL TITL 2 HIGH-AFFINITY STREPTAVIDIN-BIOTIN COMPLEX: JRNL TITL 3 MUTATIONS OF AMINO ACIDS INTERACTING WITH THE JRNL TITL 4 UREIDO OXYGEN OF BIOTIN. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 59 1567 2003 JRNL REFN ISSN 0907-4449 JRNL PMID 12925786 JRNL DOI 10.1107/S0907444903014562

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. 1.70 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-97 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 86.1 REMARK 3 CROSS-VALIDATION METHOD : FREE R REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : 0.211 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.207 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.273 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 4351 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 43516 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.186 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.183 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.245 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 9.900 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 3264 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 32882 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3475 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 8 REMARK 3 SOLVENT ATOMS : 151 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 3634.00 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 3270.00 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 0 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 14551 REMARK 3 NUMBER OF RESTRAINTS : 14614 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 ANGLE DISTANCES (A) : 0.027 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.030 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.111 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.111 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.023 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.000 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.085 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.000 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: ANISOTROPIC SCALING APPLIED BY THE REMARK 3 METHOD OF PARKIN, MOEZZI & HOPE, J.APPL.CRYST.28(1995)53-56

REMARK 4 REMARK 4 1NBX COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-DEC-02. REMARK 100 THE RCSB ID CODE IS RCSB017753.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 29-APR-96 REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 4.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS II REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 43743 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.700 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 86.3 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.05500 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: ISOMORPHOUS REMARK 200 SOFTWARE USED: ISOMORPHOUS REMARK 200 STARTING MODEL: 1SWA REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 39.40 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.03 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: MPD, PH 4.5, VAPOR DIFFUSION, REMARK 280 SITTING DROP, TEMPERATURE 293K

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y+1/2,-Z REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 43.85000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL

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: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 9120 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19370 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -51.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D 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 ALA A 13 REMARK 465 GLU A 14 REMARK 465 ALA A 15 REMARK 465 SER A 136 REMARK 465 ALA A 137 REMARK 465 ALA A 138 REMARK 465 SER A 139 REMARK 465 ALA B 13 REMARK 465 GLU B 14 REMARK 465 ALA B 15 REMARK 465 LYS B 134 REMARK 465 PRO B 135 REMARK 465 SER B 136 REMARK 465 ALA B 137 REMARK 465 ALA B 138 REMARK 465 SER B 139 REMARK 465 ALA C 13 REMARK 465 GLU C 14 REMARK 465 ALA C 15 REMARK 465 ALA C 46 REMARK 465 VAL C 47 REMARK 465 GLY C 48 REMARK 465 ASN C 49 REMARK 465 ALA C 50 REMARK 465 LYS C 134 REMARK 465 PRO C 135 REMARK 465 SER C 136 REMARK 465 ALA C 137 REMARK 465 ALA C 138 REMARK 465 SER C 139 REMARK 465 ALA D 13 REMARK 465 GLU D 14 REMARK 465 ALA D 15 REMARK 465 ALA D 46 REMARK 465 VAL D 47 REMARK 465 LYS D 134 REMARK 465 PRO D 135 REMARK 465 SER D 136 REMARK 465 ALA D 137 REMARK 465 ALA D 138 REMARK 465 SER D 139

REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 LEU A 56 CA - CB - CG ANGL. DEV. = 16.8 DEGREES REMARK 500 TRP A 79 CD1 - NE1 - CE2 ANGL. DEV. = 5.9 DEGREES REMARK 500 ARG B 53 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 TRP B 79 CD1 - NE1 - CE2 ANGL. DEV. = 7.1 DEGREES REMARK 500 THR B 114 C - N - CA ANGL. DEV. = 16.5 DEGREES REMARK 500 ARG C 53 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 ARG C 53 NE - CZ - NH2 ANGL. DEV. = -4.3 DEGREES REMARK 500 TRP C 79 CD1 - NE1 - CE2 ANGL. DEV. = 6.2 DEGREES REMARK 500 VAL C 133 C - N - CA ANGL. DEV. = 18.4 DEGREES REMARK 500 TRP D 79 CD1 - NE1 - CE2 ANGL. DEV. = 5.8 DEGREES REMARK 500 THR D 114 C - N - CA ANGL. DEV. = 17.9 DEGREES 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 GLU A 51 127.54 -178.64 REMARK 500 SER A 52 -166.37 75.54 REMARK 500 ASP B 36 55.50 -103.37 REMARK 500 TRP C 79 59.99 -90.01 REMARK 500 ASN C 81 -154.47 -134.21 REMARK 500 GLU C 101 74.00 -106.77 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 MRD A 5011

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1N4J RELATED DB: PDB REMARK 900 STREPTAVIDIN MUTANT N23A AT 2.18A RESOLUTION REMARK 900 RELATED ID: 1N43 RELATED DB: PDB REMARK 900 STREPTAVIDIN MUTANT N23A WITH BIOTIN AT 1.89A RESOLUTION REMARK 900 RELATED ID: 1N7Y RELATED DB: PDB REMARK 900 STREPTAVIDIN MUTANT N23E AT 1.96A RESOLUTION REMARK 900 RELATED ID: 1N9Y RELATED DB: PDB REMARK 900 STREPTAVIDIN MUTANT S27A AT 1.5A RESOLUTION REMARK 900 RELATED ID: 1N9M RELATED DB: PDB REMARK 900 STREPTAVIDIN MUTANT S27A WITH BIOTIN AT 1.6A RESOLUTION

DBREF 1NBX A 13 139 UNP P22629 SAV_STRAV 37 163 DBREF 1NBX B 13 139 UNP P22629 SAV_STRAV 37 163 DBREF 1NBX C 13 139 UNP P22629 SAV_STRAV 37 163 DBREF 1NBX D 13 139 UNP P22629 SAV_STRAV 37 163

SEQADV 1NBX ALA A 43 UNP P22629 TYR 67 ENGINEERED SEQADV 1NBX ALA B 43 UNP P22629 TYR 67 ENGINEERED SEQADV 1NBX ALA C 43 UNP P22629 TYR 67 ENGINEERED SEQADV 1NBX ALA D 43 UNP P22629 TYR 67 ENGINEERED

SEQRES 1 A 127 ALA GLU ALA GLY ILE THR GLY THR TRP TYR ASN GLN LEU SEQRES 2 A 127 GLY SER THR PHE ILE VAL THR ALA GLY ALA ASP GLY ALA SEQRES 3 A 127 LEU THR GLY THR ALA GLU SER ALA VAL GLY ASN ALA GLU SEQRES 4 A 127 SER ARG TYR VAL LEU THR GLY ARG TYR ASP SER ALA PRO SEQRES 5 A 127 ALA THR ASP GLY SER GLY THR ALA LEU GLY TRP THR VAL SEQRES 6 A 127 ALA TRP LYS ASN ASN TYR ARG ASN ALA HIS SER ALA THR SEQRES 7 A 127 THR TRP SER GLY GLN TYR VAL GLY GLY ALA GLU ALA ARG SEQRES 8 A 127 ILE ASN THR GLN TRP LEU LEU THR SER GLY THR THR GLU SEQRES 9 A 127 ALA ASN ALA TRP LYS SER THR LEU VAL GLY HIS ASP THR SEQRES 10 A 127 PHE THR LYS VAL LYS PRO SER ALA ALA SER SEQRES 1 B 127 ALA GLU ALA GLY ILE THR GLY THR TRP TYR ASN GLN LEU SEQRES 2 B 127 GLY SER THR PHE ILE VAL THR ALA GLY ALA ASP GLY ALA SEQRES 3 B 127 LEU THR GLY THR ALA GLU SER ALA VAL GLY ASN ALA GLU SEQRES 4 B 127 SER ARG TYR VAL LEU THR GLY ARG TYR ASP SER ALA PRO SEQRES 5 B 127 ALA THR ASP GLY SER GLY THR ALA LEU GLY TRP THR VAL SEQRES 6 B 127 ALA TRP LYS ASN ASN TYR ARG ASN ALA HIS SER ALA THR SEQRES 7 B 127 THR TRP SER GLY GLN TYR VAL GLY GLY ALA GLU ALA ARG SEQRES 8 B 127 ILE ASN THR GLN TRP LEU LEU THR SER GLY THR THR GLU SEQRES 9 B 127 ALA ASN ALA TRP LYS SER THR LEU VAL GLY HIS ASP THR SEQRES 10 B 127 PHE THR LYS VAL LYS PRO SER ALA ALA SER SEQRES 1 C 127 ALA GLU ALA GLY ILE THR GLY THR TRP TYR ASN GLN LEU SEQRES 2 C 127 GLY SER THR PHE ILE VAL THR ALA GLY ALA ASP GLY ALA SEQRES 3 C 127 LEU THR GLY THR ALA GLU SER ALA VAL GLY ASN ALA GLU SEQRES 4 C 127 SER ARG TYR VAL LEU THR GLY ARG TYR ASP SER ALA PRO SEQRES 5 C 127 ALA THR ASP GLY SER GLY THR ALA LEU GLY TRP THR VAL SEQRES 6 C 127 ALA TRP LYS ASN ASN TYR ARG ASN ALA HIS SER ALA THR SEQRES 7 C 127 THR TRP SER GLY GLN TYR VAL GLY GLY ALA GLU ALA ARG SEQRES 8 C 127 ILE ASN THR GLN TRP LEU LEU THR SER GLY THR THR GLU SEQRES 9 C 127 ALA ASN ALA TRP LYS SER THR LEU VAL GLY HIS ASP THR SEQRES 10 C 127 PHE THR LYS VAL LYS PRO SER ALA ALA SER SEQRES 1 D 127 ALA GLU ALA GLY ILE THR GLY THR TRP TYR ASN GLN LEU SEQRES 2 D 127 GLY SER THR PHE ILE VAL THR ALA GLY ALA ASP GLY ALA SEQRES 3 D 127 LEU THR GLY THR ALA GLU SER ALA VAL GLY ASN ALA GLU SEQRES 4 D 127 SER ARG TYR VAL LEU THR GLY ARG TYR ASP SER ALA PRO SEQRES 5 D 127 ALA THR ASP GLY SER GLY THR ALA LEU GLY TRP THR VAL SEQRES 6 D 127 ALA TRP LYS ASN ASN TYR ARG ASN ALA HIS SER ALA THR SEQRES 7 D 127 THR TRP SER GLY GLN TYR VAL GLY GLY ALA GLU ALA ARG SEQRES 8 D 127 ILE ASN THR GLN TRP LEU LEU THR SER GLY THR THR GLU SEQRES 9 D 127 ALA ASN ALA TRP LYS SER THR LEU VAL GLY HIS ASP THR SEQRES 10 D 127 PHE THR LYS VAL LYS PRO SER ALA ALA SER

HET MRD A5011 8

HETNAM MRD (4R)-2-METHYLPENTANE-2,4-DIOL

FORMUL 5 MRD C6 H14 O2 FORMUL 6 HOH *151(H2 O)

HELIX 1 1 THR A 115 LYS A 121 5 7 HELIX 2 2 ASN B 49 ARG B 53 5 5 HELIX 3 3 ASN B 118 LYS B 121 5 4 HELIX 4 4 THR C 115 LYS C 121 5 7 HELIX 5 5 ASN D 49 ARG D 53 5 5 HELIX 6 6 ASN D 118 LYS D 121 5 4

SHEET 1 A 9 GLY A 19 TYR A 22 0 SHEET 2 A 9 THR A 28 ALA A 33 -1 O PHE A 29 N TRP A 21 SHEET 3 A 9 ALA A 38 GLU A 44 -1 O THR A 42 N ILE A 30 SHEET 4 A 9 TYR A 54 TYR A 60 -1 O GLY A 58 N LEU A 39 SHEET 5 A 9 THR A 71 LYS A 80 -1 O THR A 76 N THR A 57 SHEET 6 A 9 ASN A 85 VAL A 97 -1 O TRP A 92 N TRP A 75 SHEET 7 A 9 ARG A 103 SER A 112 -1 O GLN A 107 N SER A 93 SHEET 8 A 9 THR A 123 THR A 131 -1 O LEU A 124 N LEU A 110 SHEET 9 A 9 GLY A 19 TYR A 22 -1 N TYR A 22 O THR A 131 SHEET 1 B 9 GLY B 19 ASN B 23 0 SHEET 2 B 9 THR B 28 ALA B 33 -1 O VAL B 31 N GLY B 19 SHEET 3 B 9 ALA B 38 GLU B 44 -1 O GLU B 44 N THR B 28 SHEET 4 B 9 TYR B 54 TYR B 60 -1 O TYR B 54 N ALA B 43 SHEET 5 B 9 THR B 71 LYS B 80 -1 O THR B 76 N THR B 57 SHEET 6 B 9 ASN B 85 VAL B 97 -1 O THR B 90 N VAL B 77 SHEET 7 B 9 ARG B 103 SER B 112 -1 O ARG B 103 N VAL B 97 SHEET 8 B 9 THR B 123 THR B 131 -1 O PHE B 130 N ILE B 104 SHEET 9 B 9 GLY B 19 ASN B 23 -1 N TYR B 22 O THR B 131 SHEET 1 C 9 GLY C 19 TYR C 22 0 SHEET 2 C 9 THR C 28 ALA C 33 -1 O PHE C 29 N TRP C 21 SHEET 3 C 9 ALA C 38 GLU C 44 -1 O GLU C 44 N THR C 28 SHEET 4 C 9 ARG C 53 TYR C 60 -1 O GLY C 58 N LEU C 39 SHEET 5 C 9 THR C 71 LYS C 80 -1 O THR C 76 N THR C 57 SHEET 6 C 9 ASN C 85 VAL C 97 -1 O TRP C 92 N TRP C 75 SHEET 7 C 9 ARG C 103 SER C 112 -1 O GLN C 107 N SER C 93 SHEET 8 C 9 THR C 123 THR C 131 -1 O ASP C 128 N THR C 106 SHEET 9 C 9 GLY C 19 TYR C 22 -1 N TYR C 22 O THR C 131 SHEET 1 D 9 GLY D 19 TYR D 22 0 SHEET 2 D 9 THR D 28 ALA D 33 -1 O PHE D 29 N TRP D 21 SHEET 3 D 9 ALA D 38 GLU D 44 -1 O GLU D 44 N THR D 28 SHEET 4 D 9 TYR D 54 TYR D 60 -1 O GLY D 58 N LEU D 39 SHEET 5 D 9 THR D 71 LYS D 80 -1 O THR D 76 N THR D 57 SHEET 6 D 9 ASN D 85 GLY D 98 -1 O THR D 90 N VAL D 77 SHEET 7 D 9 ALA D 102 SER D 112 -1 O ARG D 103 N VAL D 97 SHEET 8 D 9 THR D 123 THR D 131 -1 O PHE D 130 N ILE D 104 SHEET 9 D 9 GLY D 19 TYR D 22 -1 N TYR D 22 O THR D 131

SITE 1 AC1 10 ASN A 23 LEU A 25 TRP A 79 THR A 90 SITE 2 AC1 10 TRP A 92 TRP A 108 LEU A 110 ASP A 128 SITE 3 AC1 10 HOH A6151 TRP D 120

CRYST1 58.300 87.700 46.800 90.00 98.90 90.00 P 1 21 1 8

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 0.017153 0.000000 0.002686 0.00000

SCALE2 0.000000 0.011403 0.000000 0.00000

SCALE3 0.000000 0.000000 0.021628 0.00000