HEADER SIGNALING PROTEIN 16-NOV-18 6ISM TITLE CRYSTAL STRUCTURE OF INTRACELLULAR B30.2 DOMAIN OF BTN3A1 MUTANT COMPND MOL_ID: 1; COMPND 2 MOLECULE: BUTYROPHILIN SUBFAMILY 3 MEMBER A1; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 328-513; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: BTN3A1, BTF5; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS BUTYROPHILIN, SIGNALING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR Y.Y.YANG,W.D.LIU,N.N.CAI,C.C.CHEN,R.T.GUO,Y.H.ZHANG REVDAT 4 22-NOV-23 6ISM 1 REMARK REVDAT 3 01-MAY-19 6ISM 1 JRNL REVDAT 2 10-APR-19 6ISM 1 JRNL REVDAT 1 03-APR-19 6ISM 0 JRNL AUTH Y.YANG,L.LI,L.YUAN,X.ZHOU,J.DUAN,H.XIAO,N.CAI,S.HAN,X.MA, JRNL AUTH 2 W.LIU,C.C.CHEN,L.WANG,X.LI,J.CHEN,N.KANG,J.CHEN,Z.SHEN, JRNL AUTH 3 S.R.MALWAL,W.LIU,Y.SHI,E.OLDFIELD,R.T.GUO,Y.ZHANG JRNL TITL A STRUCTURAL CHANGE IN BUTYROPHILIN UPON PHOSPHOANTIGEN JRNL TITL 2 BINDING UNDERLIES PHOSPHOANTIGEN-MEDIATED V GAMMA 9V DELTA 2 JRNL TITL 3 T CELL ACTIVATION. JRNL REF IMMUNITY V. 50 1043 2019 JRNL REFN ISSN 1097-4180 JRNL PMID 30902636 JRNL DOI 10.1016/J.IMMUNI.2019.02.016 REMARK 2 REMARK 2 RESOLUTION. 1.25 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.8.0135 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.25 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 41.14 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 98.0 REMARK 3 NUMBER OF REFLECTIONS : 42394 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) : 0.175 REMARK 3 R VALUE (WORKING SET) : 0.174 REMARK 3 FREE R VALUE : 0.205 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.800 REMARK 3 FREE R VALUE TEST SET COUNT : 2155 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) : 1.25 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.28 REMARK 3 REFLECTION IN BIN (WORKING SET) : 2553 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 81.03 REMARK 3 BIN R VALUE (WORKING SET) : 0.2450 REMARK 3 BIN FREE R VALUE SET COUNT : 138 REMARK 3 BIN FREE R VALUE : 0.2520 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1497 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 223 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 17.72 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.02000 REMARK 3 B22 (A**2) : -0.02000 REMARK 3 B33 (A**2) : 0.00000 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): 0.050 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.054 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.032 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 0.709 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.970 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.959 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1604 ; 0.017 ; 0.019 REMARK 3 BOND LENGTHS OTHERS (A): 1498 ; 0.001 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2194 ; 1.717 ; 1.951 REMARK 3 BOND ANGLES OTHERS (DEGREES): 3468 ; 0.790 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 201 ; 7.934 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 74 ;30.935 ;23.514 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 266 ;13.689 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 11 ;17.155 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 234 ; 0.122 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1832 ; 0.016 ; 0.021 REMARK 3 GENERAL PLANES OTHERS (A): 377 ; 0.002 ; 0.020 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): 777 ; 1.989 ; 1.485 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 776 ; 1.981 ; 1.482 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 981 ; 2.897 ; 2.223 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): 982 ; 2.898 ; 2.226 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 827 ; 3.403 ; 1.786 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): 828 ; 3.401 ; 1.787 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): 1212 ; 4.854 ; 2.545 REMARK 3 LONG RANGE B REFINED ATOMS (A**2): 1960 ; 6.512 ;13.834 REMARK 3 LONG RANGE B OTHER ATOMS (A**2): 1838 ; 6.416 ;13.075 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 : NULL REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 6ISM COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 27-NOV-18. REMARK 100 THE DEPOSITION ID IS D_1300009815. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 22-OCT-18 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSRRC REMARK 200 BEAMLINE : TPS 05A REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : RAYONIX MX-300 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 42394 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.250 REMARK 200 RESOLUTION RANGE LOW (A) : 41.140 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.0 REMARK 200 DATA REDUNDANCY : 10.70 REMARK 200 R MERGE (I) : 0.05000 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 53.6900 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.25 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.29 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.28800 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: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: 4N7U REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 31.21 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.79 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: MAGNESIUM CHLORIDE HEXAHYDRATE, HEPES REMARK 280 PH 7.5, POLYETHYLENE GLYCOL MONOMETHYL ETHER 550, VAPOR REMARK 280 DIFFUSION, SITTING DROP, TEMPERATURE 291K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 X+1/2,-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 23.51450 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 31.51350 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 27.15250 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 31.51350 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 23.51450 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 27.15250 REMARK 290 SMTRY3 4 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: MONOMERIC 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 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 296 REMARK 465 ALA A 483 REMARK 465 LEU A 484 REMARK 465 GLU A 485 REMARK 465 HIS A 486 REMARK 465 HIS A 487 REMARK 465 HIS A 488 REMARK 465 HIS A 489 REMARK 465 HIS A 490 REMARK 465 HIS A 491 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 O HOH A 644 O HOH A 695 1.98 REMARK 500 O CYS A 481 O HOH A 501 2.10 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 527 O HOH A 680 3654 2.08 REMARK 500 REMARK 500 REMARK: NULL 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 A 334 NE - CZ - NH2 ANGL. DEV. = -3.2 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 ASP A 343 53.27 -95.33 REMARK 500 TRP A 350 -59.46 -130.35 REMARK 500 ASN A 409 21.11 -150.19 REMARK 500 LEU A 414 51.36 -95.05 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 A 723 DISTANCE = 5.86 ANGSTROMS DBREF 6ISM A 298 483 UNP O00481 BT3A1_HUMAN 328 513 SEQADV 6ISM MET A 296 UNP O00481 INITIATING METHIONINE SEQADV 6ISM GLY A 297 UNP O00481 EXPRESSION TAG SEQADV 6ISM ALA A 302 UNP O00481 TRP 332 ENGINEERED MUTATION SEQADV 6ISM ALA A 306 UNP O00481 LEU 336 ENGINEERED MUTATION SEQADV 6ISM LEU A 484 UNP O00481 EXPRESSION TAG SEQADV 6ISM GLU A 485 UNP O00481 EXPRESSION TAG SEQADV 6ISM HIS A 486 UNP O00481 EXPRESSION TAG SEQADV 6ISM HIS A 487 UNP O00481 EXPRESSION TAG SEQADV 6ISM HIS A 488 UNP O00481 EXPRESSION TAG SEQADV 6ISM HIS A 489 UNP O00481 EXPRESSION TAG SEQADV 6ISM HIS A 490 UNP O00481 EXPRESSION TAG SEQADV 6ISM HIS A 491 UNP O00481 EXPRESSION TAG SEQRES 1 A 196 MET GLY ALA TYR ASN GLU ALA LYS LYS ALA ALA PHE LYS SEQRES 2 A 196 PRO ALA ASP VAL ILE LEU ASP PRO LYS THR ALA ASN PRO SEQRES 3 A 196 ILE LEU LEU VAL SER GLU ASP GLN ARG SER VAL GLN ARG SEQRES 4 A 196 ALA LYS GLU PRO GLN ASP LEU PRO ASP ASN PRO GLU ARG SEQRES 5 A 196 PHE ASN TRP HIS TYR CYS VAL LEU GLY CYS GLU SER PHE SEQRES 6 A 196 ILE SER GLY ARG HIS TYR TRP GLU VAL GLU VAL GLY ASP SEQRES 7 A 196 ARG LYS GLU TRP HIS ILE GLY VAL CYS SER LYS ASN VAL SEQRES 8 A 196 GLN ARG LYS GLY TRP VAL LYS MET THR PRO GLU ASN GLY SEQRES 9 A 196 PHE TRP THR MET GLY LEU THR ASP GLY ASN LYS TYR ARG SEQRES 10 A 196 THR LEU THR GLU PRO ARG THR ASN LEU LYS LEU PRO LYS SEQRES 11 A 196 PRO PRO LYS LYS VAL GLY VAL PHE LEU ASP TYR GLU THR SEQRES 12 A 196 GLY ASP ILE SER PHE TYR ASN ALA VAL ASP GLY SER HIS SEQRES 13 A 196 ILE HIS THR PHE LEU ASP VAL SER PHE SER GLU ALA LEU SEQRES 14 A 196 TYR PRO VAL PHE ARG ILE LEU THR LEU GLU PRO THR ALA SEQRES 15 A 196 LEU THR ILE CYS PRO ALA LEU GLU HIS HIS HIS HIS HIS SEQRES 16 A 196 HIS FORMUL 2 HOH *223(H2 O) HELIX 1 AA1 GLY A 297 PHE A 307 1 11 HELIX 2 AA2 ASP A 315 ALA A 319 5 5 HELIX 3 AA3 THR A 395 ASN A 398 5 4 SHEET 1 AA1 5 LYS A 308 PRO A 309 0 SHEET 2 AA1 5 ARG A 364 GLU A 370 1 O ARG A 364 N LYS A 308 SHEET 3 AA1 5 LEU A 478 CYS A 481 -1 O THR A 479 N GLU A 370 SHEET 4 AA1 5 SER A 331 ARG A 334 -1 N VAL A 332 O LEU A 478 SHEET 5 AA1 5 LEU A 323 VAL A 325 -1 N LEU A 324 O GLN A 333 SHEET 1 AA2 5 LYS A 308 PRO A 309 0 SHEET 2 AA2 5 ARG A 364 GLU A 370 1 O ARG A 364 N LYS A 308 SHEET 3 AA2 5 LYS A 429 ASP A 435 -1 O LEU A 434 N HIS A 365 SHEET 4 AA2 5 ASP A 440 ASN A 445 -1 O SER A 442 N PHE A 433 SHEET 5 AA2 5 HIS A 451 PHE A 455 -1 O PHE A 455 N ILE A 441 SHEET 1 AA3 6 CYS A 353 LEU A 355 0 SHEET 2 AA3 6 LEU A 464 ARG A 469 -1 O PHE A 468 N VAL A 354 SHEET 3 AA3 6 TRP A 377 SER A 383 -1 N CYS A 382 O TYR A 465 SHEET 4 AA3 6 PHE A 400 THR A 406 -1 O TRP A 401 N VAL A 381 SHEET 5 AA3 6 LYS A 410 THR A 413 -1 O ARG A 412 N GLY A 404 SHEET 6 AA3 6 THR A 419 LEU A 421 -1 O LEU A 421 N TYR A 411 CISPEP 1 GLU A 416 PRO A 417 0 0.59 CRYST1 47.029 54.305 63.027 90.00 90.00 90.00 P 21 21 21 4 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 0.021263 0.000000 0.000000 0.00000 SCALE2 0.000000 0.018415 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015866 0.00000