1SWE - Header Asymmetric Unit

HEADER BIOTIN-BINDING PROTEIN 04-MAR-97 1SWE

TITLE APO-CORE-STREPTAVIDIN IN COMPLEX WITH BIOTIN AT PH 4.5

COMPND MOL_ID: 1; COMPND 2 MOLECULE: STREPTAVIDIN; COMPND 3 CHAIN: A, B, C, D; COMPND 4 FRAGMENT: CORE, RESIDUES 13 - 139; COMPND 5 SYNONYM: CORE STREPTAVIDIN; COMPND 6 ENGINEERED: YES; COMPND 7 OTHER_DETAILS: PH 4.5, COMPLEXED WITH BIOTIN

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STREPTOMYCES AVIDINII; SOURCE 3 ORGANISM_TAXID: 1895; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_VECTOR_TYPE: T7

KEYWDS BIOTIN BINDING PROTEIN, SIGNAL, BIOTIN, BIOTIN-BINDING KEYWDS 2 PROTEIN

EXPDTA X-RAY DIFFRACTION

AUTHOR S.FREITAG,I.LE TRONG,L.KLUMB,P.S.STAYTON,R.E.STENKAMP

REVDAT 3 24-FEB-09 1SWE 1 VERSN REVDAT 2 15-DEC-99 1SWE 1 REMARK REVDAT 1 04-MAR-98 1SWE 0

JRNL AUTH S.FREITAG,I.LE TRONG,L.KLUMB,P.S.STAYTON, JRNL AUTH 2 R.E.STENKAMP JRNL TITL STRUCTURAL STUDIES OF THE STREPTAVIDIN BINDING JRNL TITL 2 LOOP. JRNL REF PROTEIN SCI. V. 6 1157 1997 JRNL REFN ISSN 0961-8368 JRNL PMID 9194176

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. 2.06 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-96, X-PLOR REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.06 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 79.0 REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : EVERY 10TH REFLECTION REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : 0.168 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.161 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.266 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 2419 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 24460 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.144 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.138 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.237 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 1982 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 20281 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3525 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 64 REMARK 3 SOLVENT ATOMS : 302 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 3891.00 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 3355.00 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 0 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 15579 REMARK 3 NUMBER OF RESTRAINTS : 15139 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 ANGLE DISTANCES (A) : 0.025 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.017 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.104 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.092 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.012 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.000 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.048 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.000 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: MOEWS & KRETSINGER, J.MOL.BIOL.91(1973)201 REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

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

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 13-FEB-96 REMARK 200 TEMPERATURE (KELVIN) : 295 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 RUH2R REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE(002) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : SIEMENS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XENGEN REMARK 200 DATA SCALING SOFTWARE : XENGEN REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 24738 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.100 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 83.0 REMARK 200 DATA REDUNDANCY : 11.000 REMARK 200 R MERGE (I) : 0.06600 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 9.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.20 REMARK 200 COMPLETENESS FOR SHELL (%) : 42.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.19200 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: SHELXL-96, X-PLOR REMARK 200 STARTING MODEL: PDB ENTRY 1SWA REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 48.48 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.39 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEIN-BIOTIN COMPLEX WAS CO- REMARK 280 CRYSTALLIZED FROM 50% MPD (2-METHYL-PENTANE-2,4-DIOLE, PH 4.5) REMARK 280 WITH 2.5M EXCESS OF BIOTIN

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 50.05500 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: 11520 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 17800 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -37.0 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 VAL A 133 REMARK 465 LYS A 134 REMARK 465 PRO A 135 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 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 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 ARG B 53 CD - NE - CZ ANGL. DEV. = 9.0 DEGREES REMARK 500 ARG B 53 NE - CZ - NH1 ANGL. DEV. = 4.7 DEGREES REMARK 500 ARG C 53 NE - CZ - NH1 ANGL. DEV. = 3.0 DEGREES REMARK 500 TYR C 54 CB - CG - CD2 ANGL. DEV. = -4.4 DEGREES REMARK 500 ARG C 84 CA - CB - CG ANGL. DEV. = 13.2 DEGREES REMARK 500 ASP D 36 C - N - CA ANGL. DEV. = 28.0 DEGREES REMARK 500 LEU D 39 C - N - CA ANGL. DEV. = 17.1 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 SER A 52 -155.02 68.90 REMARK 500 ASN A 81 -158.23 -140.49 REMARK 500 SER B 52 -164.10 64.52 REMARK 500 SER C 52 -157.92 55.12 REMARK 500 PRO C 64 -178.87 -64.91 REMARK 500 SER D 52 -163.03 80.68 REMARK 500 TRP D 79 48.69 -75.74 REMARK 500 GLU D 101 77.37 -111.89 REMARK 500 REMARK 500 REMARK: NULL

REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH D 404 DISTANCE = 6.37 ANGSTROMS REMARK 525 HOH A 420 DISTANCE = 6.26 ANGSTROMS REMARK 525 HOH C 484 DISTANCE = 5.21 ANGSTROMS

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BTN A 300 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BTN B 400 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BTN C 500 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BTN D 600

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

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 TYR 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 TYR 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 TYR 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 TYR 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 BTN A 300 16 HET BTN B 400 16 HET BTN C 500 16 HET BTN D 600 16

HETNAM BTN BIOTIN

FORMUL 5 BTN 4(C10 H16 N2 O3 S) FORMUL 9 HOH *302(H2 O)

HELIX 1 1 GLU A 116 LYS A 121 5 6 HELIX 2 2 GLU B 116 LYS B 121 5 6 HELIX 3 3 GLU C 116 LYS C 121 5 6 HELIX 4 4 GLU D 116 LYS D 121 5 6

SHEET 1 A 8 GLY A 19 TYR A 22 0 SHEET 2 A 8 THR A 28 ALA A 33 -1 N VAL A 31 O GLY A 19 SHEET 3 A 8 ALA A 38 GLU A 44 -1 N GLU A 44 O THR A 28 SHEET 4 A 8 TYR A 54 TYR A 60 -1 N GLY A 58 O LEU A 39 SHEET 5 A 8 THR A 71 ALA A 78 -1 N THR A 76 O THR A 57 SHEET 6 A 8 SER A 88 VAL A 97 -1 N TYR A 96 O THR A 71 SHEET 7 A 8 ARG A 103 SER A 112 -1 N THR A 111 O ALA A 89 SHEET 8 A 8 THR A 123 THR A 131 -1 N PHE A 130 O ILE A 104 SHEET 1 B 8 GLY B 19 TYR B 22 0 SHEET 2 B 8 THR B 28 ALA B 33 -1 N VAL B 31 O GLY B 19 SHEET 3 B 8 ALA B 38 GLU B 44 -1 N GLU B 44 O THR B 28 SHEET 4 B 8 ARG B 53 TYR B 60 -1 N GLY B 58 O LEU B 39 SHEET 5 B 8 THR B 71 ALA B 78 -1 N THR B 76 O THR B 57 SHEET 6 B 8 SER B 88 VAL B 97 -1 N TYR B 96 O THR B 71 SHEET 7 B 8 ARG B 103 SER B 112 -1 N THR B 111 O ALA B 89 SHEET 8 B 8 THR B 123 THR B 131 -1 N PHE B 130 O ILE B 104 SHEET 1 C 8 GLY C 19 TYR C 22 0 SHEET 2 C 8 THR C 28 ALA C 33 -1 N VAL C 31 O GLY C 19 SHEET 3 C 8 ALA C 38 GLU C 44 -1 N GLU C 44 O THR C 28 SHEET 4 C 8 TYR C 54 TYR C 60 -1 N GLY C 58 O LEU C 39 SHEET 5 C 8 THR C 71 ALA C 78 -1 N THR C 76 O THR C 57 SHEET 6 C 8 SER C 88 VAL C 97 -1 N TYR C 96 O THR C 71 SHEET 7 C 8 ARG C 103 SER C 112 -1 N THR C 111 O ALA C 89 SHEET 8 C 8 THR C 123 THR C 131 -1 N PHE C 130 O ILE C 104 SHEET 1 D 8 GLY D 19 TYR D 22 0 SHEET 2 D 8 THR D 28 ALA D 33 -1 N VAL D 31 O GLY D 19 SHEET 3 D 8 ALA D 38 GLU D 44 -1 N GLU D 44 O THR D 28 SHEET 4 D 8 ARG D 53 TYR D 60 -1 N GLY D 58 O LEU D 39 SHEET 5 D 8 THR D 71 ALA D 78 -1 N THR D 76 O THR D 57 SHEET 6 D 8 SER D 88 VAL D 97 -1 N TYR D 96 O THR D 71 SHEET 7 D 8 ARG D 103 SER D 112 -1 N THR D 111 O ALA D 89 SHEET 8 D 8 THR D 123 THR D 131 -1 N PHE D 130 O ILE D 104

SITE 1 AC1 13 ASN A 23 SER A 27 TYR A 43 SER A 45 SITE 2 AC1 13 VAL A 47 GLY A 48 ASN A 49 TRP A 79 SITE 3 AC1 13 SER A 88 THR A 90 TRP A 108 ASP A 128 SITE 4 AC1 13 HOH A 460 SITE 1 AC2 12 ASN B 23 SER B 27 TYR B 43 SER B 45 SITE 2 AC2 12 VAL B 47 ASN B 49 TRP B 79 ALA B 86 SITE 3 AC2 12 SER B 88 THR B 90 TRP B 108 ASP B 128 SITE 1 AC3 15 TRP B 120 ASN C 23 LEU C 25 SER C 27 SITE 2 AC3 15 TYR C 43 SER C 45 GLY C 48 ASN C 49 SITE 3 AC3 15 TRP C 79 SER C 88 THR C 90 TRP C 92 SITE 4 AC3 15 TRP C 108 ASP C 128 HOH C 319 SITE 1 AC4 15 TRP A 120 ASN D 23 LEU D 25 SER D 27 SITE 2 AC4 15 TYR D 43 SER D 45 VAL D 47 GLY D 48 SITE 3 AC4 15 ASN D 49 TRP D 79 ALA D 86 SER D 88 SITE 4 AC4 15 THR D 90 TRP D 108 ASP D 128

CRYST1 52.780 100.110 52.010 90.00 112.60 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 0.018947 0.000000 0.007887 0.00000

SCALE2 0.000000 0.009989 0.000000 0.00000

SCALE3 0.000000 0.000000 0.020826 0.00000

MTRIX1 1 -0.688772 -0.566835 0.451986 12.17110 1

MTRIX2 1 -0.566320 0.031431 -0.823586 3.62400 1

MTRIX3 1 0.452631 -0.823231 -0.342659 -3.62000 1

MTRIX1 2 -0.639793 0.583962 0.499653 25.09190 1

MTRIX2 2 0.594748 -0.035565 0.803125 -28.02070 1

MTRIX3 2 0.486765 0.811002 -0.324556 15.37010 1

MTRIX1 3 0.330848 -0.016305 -0.943543 17.40390 1

MTRIX2 3 -0.019288 -0.999759 0.010513 -23.94900 1

MTRIX3 3 -0.943487 0.014721 -0.331082 25.71200 1

MTRIX1 4 0.324213 -0.014827 -0.945868 17.61620 1

MTRIX2 4 -0.019429 -0.999771 0.009012 -23.95030 1

MTRIX3 4 -0.945785 0.015456 -0.324427 25.39460 1

MTRIX1 5 -0.644095 0.588569 0.488598 25.41440 1

MTRIX2 5 0.584060 -0.034083 0.810994 -27.90690 1

MTRIX3 5 0.493979 0.807728 -0.321807 14.94200 1

MTRIX1 6 -0.682450 -0.571330 0.455899 12.38080 1

MTRIX2 6 -0.576994 0.038195 -0.815855 3.79240 1

MTRIX3 6 0.448709 -0.819831 -0.355720 -3.87130 1