HEADER BIOTIN-BINDING PROTEIN 09-APR-12 4EKV TITLE STREPTAVIDIN 8-AA-LOOP H127C MUTEIN WITH REVERSIBLE BIOTIN BINDING COMPND MOL_ID: 1; COMPND 2 MOLECULE: STREPTAVIDIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STREPTOMYCES AVIDINII; SOURCE 3 ORGANISM_TAXID: 1895; SOURCE 4 EXPRESSION_SYSTEM: BACILLUS SUBTILIS; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 1423; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: WB800; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PSSAV KEYWDS BETA-BARREL, BINDING PROTEIN, BIOTIN-BINDING, BIOTIN-BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR I.H.BARRETTE-NG,C.HONETSCHLAEGER,S.L.WONG,K.K.S.NG REVDAT 4 20-NOV-24 4EKV 1 REMARK REVDAT 3 13-SEP-23 4EKV 1 REMARK SEQADV REVDAT 2 15-NOV-17 4EKV 1 REMARK REVDAT 1 13-JUN-12 4EKV 0 JRNL AUTH V.J.O'SULLIVAN,I.BARRETTE-NG,E.HOMMEMA,G.T.HERMANSON, JRNL AUTH 2 M.SCHOFIELD,S.C.WU,C.HONETSCHLAEGER,K.K.NG,S.L.WONG JRNL TITL DEVELOPMENT OF A TETRAMERIC STREPTAVIDIN MUTEIN WITH JRNL TITL 2 REVERSIBLE BIOTIN BINDING CAPABILITY: ENGINEERING A MOBILE JRNL TITL 3 LOOP AS AN EXIT DOOR FOR BIOTIN. JRNL REF PLOS ONE V. 7 35203 2012 JRNL REFN ESSN 1932-6203 JRNL PMID 22536357 JRNL DOI 10.1371/JOURNAL.PONE.0035203 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.39 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 7585 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : 0.190 REMARK 3 R VALUE (WORKING SET) : 0.188 REMARK 3 FREE R VALUE : 0.225 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.900 REMARK 3 FREE R VALUE TEST SET COUNT : 394 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.00 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.05 REMARK 3 REFLECTION IN BIN (WORKING SET) : 404 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 100.0 REMARK 3 BIN R VALUE (WORKING SET) : 0.2810 REMARK 3 BIN FREE R VALUE SET COUNT : 23 REMARK 3 BIN FREE R VALUE : 0.3670 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 898 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 17 REMARK 3 SOLVENT ATOMS : 70 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 35.10 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 37.56 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.98000 REMARK 3 B22 (A**2) : -0.98000 REMARK 3 B33 (A**2) : 1.96000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.199 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.165 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.114 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 4.098 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.955 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.939 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 936 ; 0.009 ; 0.021 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1280 ; 1.265 ; 1.923 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 121 ; 6.363 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 36 ;25.783 ;23.889 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 122 ; 9.974 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 4 ; 9.614 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 147 ; 0.079 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 710 ; 0.003 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 601 ; 2.048 ; 2.000 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 950 ; 3.204 ; 2.500 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 335 ; 4.263 ; 3.500 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 330 ; 5.767 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : BABINET MODEL WITH MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: U VALUES: REFINED INDIVIDUALLY. THE SF REMARK 3 DATA DO NOT HAVE FREE SET MARKER. REMARK 4 REMARK 4 4EKV COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 11-MAY-12. REMARK 100 THE DEPOSITION ID IS D_1000071745. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 07-DEC-10 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.0 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 RUH3R REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : OSMIC MULTILAYER REMARK 200 OPTICS : OSMIC MULTILAYER REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MAR SCANNER 345 MM PLATE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 8607 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.950 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.1 REMARK 200 DATA REDUNDANCY : 6.700 REMARK 200 R MERGE (I) : 0.06300 REMARK 200 R SYM (I) : 0.06300 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 28.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.95 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.02 REMARK 200 COMPLETENESS FOR SHELL (%) : 88.0 REMARK 200 DATA REDUNDANCY IN SHELL : 3.60 REMARK 200 R MERGE FOR SHELL (I) : 0.49600 REMARK 200 R SYM FOR SHELL (I) : 0.04960 REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: PDB ENTRY 1SWE REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 29.88 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.75 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 50% TACSIMATE, 10% GLYCEROL, PH 6.0, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 42 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -Y+1/2,X+1/2,Z+1/2 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/2 REMARK 290 5555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/2 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-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 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 28.53300 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 28.53300 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 35.09300 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 28.53300 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 28.53300 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 35.09300 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 28.53300 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 28.53300 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 35.09300 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 28.53300 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 28.53300 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 35.09300 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 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 300 REMARK: THE HOMOTETRAMER IS GENERATED FROM THE SINGLE PROTOMER IN REMARK 300 THE ASYMMETRIC UNIT USING THE FOUR-FOLD CRYSTALLOGRAPHIC SYMMETRY REMARK 300 OPERATORS. 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: 9110 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 20570 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -74.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A 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 350 BIOMT1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 3 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 350 BIOMT1 4 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 302 LIES ON A SPECIAL POSITION. 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 ASP A 1 REMARK 465 PRO A 2 REMARK 465 SER A 3 REMARK 465 LYS A 4 REMARK 465 ASP A 5 REMARK 465 SER A 6 REMARK 465 LYS A 7 REMARK 465 ALA A 8 REMARK 465 GLN A 9 REMARK 465 VAL A 10 REMARK 465 SER A 11 REMARK 465 GLY A 113 REMARK 465 ASP A 114 REMARK 465 SER A 115 REMARK 465 SER A 116 REMARK 465 ASN A 117 REMARK 465 GLY A 118 REMARK 465 SER A 119 REMARK 465 ASP A 120 REMARK 465 GLY A 121 REMARK 465 LYS A 144 REMARK 465 LYS A 145 REMARK 465 ALA A 146 REMARK 465 GLY A 147 REMARK 465 VAL A 148 REMARK 465 ASN A 149 REMARK 465 ASN A 150 REMARK 465 GLY A 151 REMARK 465 ASN A 152 REMARK 465 PRO A 153 REMARK 465 LEU A 154 REMARK 465 ASP A 155 REMARK 465 ALA A 156 REMARK 465 VAL A 157 REMARK 465 GLN A 158 REMARK 465 GLN A 159 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 -156.19 63.75 REMARK 500 GLU A 101 54.59 -117.37 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 BTN A 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 202 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1SWE RELATED DB: PDB REMARK 900 WILD-TYPE STREPTAVIDIN USED AS THE MOLECULAR REPLACEMENT SEARCH REMARK 900 MODEL REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE 8-RESIDUE LOOP REGION WAS MODIFIED FROM TTEANAWK TO DSSNGSDG DBREF 4EKV A 1 159 UNP P22629 SAV_STRAV 25 183 SEQADV 4EKV ASP A 114 UNP P22629 THR 138 SEE REMARK 999 SEQADV 4EKV SER A 115 UNP P22629 THR 139 SEE REMARK 999 SEQADV 4EKV SER A 116 UNP P22629 GLU 140 SEE REMARK 999 SEQADV 4EKV ASN A 117 UNP P22629 ALA 141 SEE REMARK 999 SEQADV 4EKV GLY A 118 UNP P22629 ASN 142 SEE REMARK 999 SEQADV 4EKV SER A 119 UNP P22629 ALA 143 SEE REMARK 999 SEQADV 4EKV ASP A 120 UNP P22629 TRP 144 SEE REMARK 999 SEQADV 4EKV GLY A 121 UNP P22629 LYS 145 SEE REMARK 999 SEQADV 4EKV CYS A 127 UNP P22629 HIS 151 ENGINEERED MUTATION SEQRES 1 A 159 ASP PRO SER LYS ASP SER LYS ALA GLN VAL SER ALA ALA SEQRES 2 A 159 GLU ALA GLY ILE THR GLY THR TRP TYR ASN GLN LEU GLY SEQRES 3 A 159 SER THR PHE ILE VAL THR ALA GLY ALA ASP GLY ALA LEU SEQRES 4 A 159 THR GLY THR TYR GLU SER ALA VAL GLY ASN ALA GLU SER SEQRES 5 A 159 ARG TYR VAL LEU THR GLY ARG TYR ASP SER ALA PRO ALA SEQRES 6 A 159 THR ASP GLY SER GLY THR ALA LEU GLY TRP THR VAL ALA SEQRES 7 A 159 TRP LYS ASN ASN TYR ARG ASN ALA HIS SER ALA THR THR SEQRES 8 A 159 TRP SER GLY GLN TYR VAL GLY GLY ALA GLU ALA ARG ILE SEQRES 9 A 159 ASN THR GLN TRP LEU LEU THR SER GLY ASP SER SER ASN SEQRES 10 A 159 GLY SER ASP GLY SER THR LEU VAL GLY CYS ASP THR PHE SEQRES 11 A 159 THR LYS VAL LYS PRO SER ALA ALA SER ILE ASP ALA ALA SEQRES 12 A 159 LYS LYS ALA GLY VAL ASN ASN GLY ASN PRO LEU ASP ALA SEQRES 13 A 159 VAL GLN GLN HET BTN A 201 16 HET CL A 202 1 HETNAM BTN BIOTIN HETNAM CL CHLORIDE ION FORMUL 2 BTN C10 H16 N2 O3 S FORMUL 3 CL CL 1- FORMUL 4 HOH *70(H2 O) HELIX 1 1 ALA A 12 THR A 18 1 7 HELIX 2 2 SER A 136 ALA A 143 1 8 SHEET 1 A 9 GLY A 19 ASN A 23 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 ALA A 86 N TRP A 79 SHEET 7 A 9 ARG A 103 THR A 111 -1 O ARG A 103 N VAL A 97 SHEET 8 A 9 LEU A 124 THR A 131 -1 O LEU A 124 N LEU A 110 SHEET 9 A 9 GLY A 19 ASN A 23 -1 N TYR A 22 O THR A 131 SSBOND 1 CYS A 127 CYS A 127 1555 7555 2.52 SITE 1 AC1 13 ASN A 23 SER A 27 TYR A 43 SER A 45 SITE 2 AC1 13 VAL A 47 ASN A 49 TRP A 79 ALA A 86 SITE 3 AC1 13 SER A 88 THR A 90 TRP A 108 ASP A 128 SITE 4 AC1 13 HOH A 325 SITE 1 AC2 6 GLY A 34 ALA A 35 ASP A 36 GLY A 37 SITE 2 AC2 6 ALA A 38 HOH A 368 CRYST1 57.066 57.066 70.186 90.00 90.00 90.00 P 42 21 2 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 0.017524 0.000000 0.000000 0.00000 SCALE2 0.000000 0.017524 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014248 0.00000