HEADER HYDROLASE 14-MAR-00 1C7S TITLE BETA-N-ACETYLHEXOSAMINIDASE MUTANT D539A COMPLEXED WITH DI-N-ACETYL- TITLE 2 BETA-D-GLUCOSAMINE (CHITOBIASE) COMPND MOL_ID: 1; COMPND 2 MOLECULE: BETA-N-ACETYLHEXOSAMINIDASE; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: MATURE PROTEIN, PERIPLASMATIC TARGETING SEQUENCE RESIDUES COMPND 5 1-27 CLEAVED OFF DURING MATURATION; COMPND 6 SYNONYM: N-ACETYL-BETA-D-GLUCOSAMINIDASE, CHITOBIASE; COMPND 7 EC: 3.2.1.52; COMPND 8 ENGINEERED: YES; COMPND 9 MUTATION: YES; COMPND 10 OTHER_DETAILS: COMPLEXED WITH DINAG SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SERRATIA MARCESCENS; SOURCE 3 ORGANISM_TAXID: 615; SOURCE 4 STRAIN: A9301; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: XL1-BLUE; SOURCE 8 EXPRESSION_SYSTEM_CELLULAR_LOCATION: PERIPLASM; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PKK177-3 KEYWDS GLYCOSYL HYDROLASE, BETA-N-ACETYLHEXOSAMINIDASE, CHITINOLYSIS, KEYWDS 2 A/B(TIM)-BARREL, SITE DIRECTED MUTAGENESIS, SUBSTRATE NUCLEOPHILE KEYWDS 3 STABILIZER MUTATION, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR G.PRAG,Y.PAPANIKOLAU,G.TAVLAS,C.E.VORGIAS,K.PETRATOS,A.B.OPPENHEIM REVDAT 7 09-AUG-23 1C7S 1 REMARK REVDAT 6 03-NOV-21 1C7S 1 SEQADV HETSYN REVDAT 5 29-JUL-20 1C7S 1 COMPND REMARK SEQADV HET REVDAT 5 2 1 HETNAM FORMUL LINK SITE REVDAT 5 3 1 ATOM REVDAT 4 04-OCT-17 1C7S 1 REMARK REVDAT 3 24-FEB-09 1C7S 1 VERSN REVDAT 2 01-APR-03 1C7S 1 JRNL REVDAT 1 20-SEP-00 1C7S 0 JRNL AUTH G.PRAG,Y.PAPANIKOLAU,G.TAVLAS,C.E.VORGIAS,K.PETRATOS, JRNL AUTH 2 A.B.OPPENHEIM JRNL TITL STRUCTURES OF CHITOBIASE MUTANTS COMPLEXED WITH THE JRNL TITL 2 SUBSTRATE DI-N-ACETYL-D-GLUCOSAMINE: THE CATALYTIC ROLE OF JRNL TITL 3 THE CONSERVED ACIDIC PAIR, ASPARTATE 539 AND GLUTAMATE 540. JRNL REF J.MOL.BIOL. V. 300 611 2000 JRNL REFN ISSN 0022-2836 JRNL PMID 10884356 JRNL DOI 10.1006/JMBI.2000.3906 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH I.TEWS,A.PERRAKIS,A.OPPENHEIM,Z.DAUTER,K.S.WILSON, REMARK 1 AUTH 2 C.E.VORGIAS REMARK 1 TITL BACTERIAL CHITOBIASE STRUCTURE PROVIDES INSIGHT INTO REMARK 1 TITL 2 CATALYTIC MECHANISM AND THE BASIS OF TAY-SACHS DISEASE REMARK 1 REF NAT.STRUCT.BIOL. V. 3 638 1996 REMARK 1 REFN ISSN 1072-8368 REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC / ARP REMARK 3 AUTHORS : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 15.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 86.9 REMARK 3 NUMBER OF REFLECTIONS : 76047 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : R-FREE REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : 0.183 REMARK 3 R VALUE (WORKING SET) : 0.171 REMARK 3 FREE R VALUE : 0.224 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 7659 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 6767 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 49 REMARK 3 SOLVENT ATOMS : 821 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 21.80 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.152 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.147 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.087 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.724 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.013 ; 0.020 REMARK 3 ANGLE DISTANCE (A) : 0.024 ; 0.030 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : 0.028 ; 0.040 REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : 0.117 ; 0.120 REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : 0.184 ; 0.500 REMARK 3 MULTIPLE TORSION (A) : 0.241 ; 0.500 REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : 3.500 ; 3.000 REMARK 3 STAGGERED (DEGREES) : 15.000; 15.000 REMARK 3 TRANSVERSE (DEGREES) : NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.481 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.016 ; 3.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.584 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.496 ; 4.000 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1C7S COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 17-MAR-00. REMARK 100 THE DEPOSITION ID IS D_1000001441. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 04-APR-99 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.8 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : EMBL/DESY, HAMBURG REMARK 200 BEAMLINE : X11 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9116 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : 345 MM IMAGE PLATE REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : SOFTWARE AT SYNCHROTRON REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 76047 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 15.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.9 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.02400 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 32832.00 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.86 REMARK 200 COMPLETENESS FOR SHELL (%) : 90.8 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.09500 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 4738. REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1QBB REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 51.90 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.56 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: CO-CRYSTALS WERE GROWN BY THE HANGING REMARK 280 -DROP VAPOR DIFFUSION METHOD. RESERVOIR BUFFER CONTAINED 2.3 REMARK 280 MOLAR AMMONIUM SULFATE AND 100 MILLIMOLAR CACODYLATE BUFFER PH REMARK 280 4.8. PROTEIN SOLUTION 40 MILLIGRAM PER MILLILITER WAS MIXED WITH REMARK 280 AN EQUAL VOLUME OF RESERVOIR CONTAINING 10 MILLIMOLAR DI-NAG. REMARK 280 CRYSTALS ABOUT 0.5 X 0.2 X 0.2 MILLIMETER IN SIZE WERE FORMED REMARK 280 WITHIN 2-3 DAYS., VAPOR DIFFUSION, HANGING DROP REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 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 -X+1/2,Y+1/2,-Z 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 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 -1.000000 0.000000 0.000000 54.39700 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 49.98000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 54.39700 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 49.98000 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: DIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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 54.39700 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 49.98000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 86.30800 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 NZ LYS A 542 O HOH A 2454 1.36 REMARK 500 CB GLU A 540 CE LYS A 542 2.08 REMARK 500 OE2 GLU A 446 OD1 ASP A 448 2.14 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 2247 O HOH A 2812 3556 0.16 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 LYS A 292 CB LYS A 292 CG -0.192 REMARK 500 LYS A 292 CB LYS A 292 CG -0.221 REMARK 500 LYS A 542 CB LYS A 542 CG 0.179 REMARK 500 VAL A 885 C VAL A 885 OXT 16.539 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 ASP A 33 CB - CG - OD1 ANGL. DEV. = -5.4 DEGREES REMARK 500 ARG A 48 CD - NE - CZ ANGL. DEV. = 11.9 DEGREES REMARK 500 ARG A 48 NE - CZ - NH1 ANGL. DEV. = 4.5 DEGREES REMARK 500 ARG A 48 NE - CZ - NH2 ANGL. DEV. = -4.9 DEGREES REMARK 500 LYS A 280 CG - CD - CE ANGL. DEV. = 36.5 DEGREES REMARK 500 LYS A 280 CG - CD - CE ANGL. DEV. = 36.5 DEGREES REMARK 500 PRO A 336 C - N - CD ANGL. DEV. = -13.0 DEGREES REMARK 500 ARG A 349 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 ARG A 439 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 ARG A 480 CD - NE - CZ ANGL. DEV. = 9.3 DEGREES REMARK 500 ARG A 498 NE - CZ - NH2 ANGL. DEV. = -4.9 DEGREES REMARK 500 PRO A 556 C - N - CD ANGL. DEV. = -15.6 DEGREES REMARK 500 PRO A 556 CA - N - CD ANGL. DEV. = -10.8 DEGREES REMARK 500 ARG A 681 NE - CZ - NH2 ANGL. DEV. = -5.5 DEGREES REMARK 500 TYR A 683 CB - CG - CD2 ANGL. DEV. = -4.2 DEGREES REMARK 500 ARG A 688 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 ARG A 693 CD - NE - CZ ANGL. DEV. = 11.1 DEGREES REMARK 500 ARG A 713 NE - CZ - NH1 ANGL. DEV. = 3.8 DEGREES REMARK 500 ARG A 713 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 ARG A 742 NE - CZ - NH1 ANGL. DEV. = 3.9 DEGREES REMARK 500 PRO A 745 C - N - CD ANGL. DEV. = -13.2 DEGREES REMARK 500 ARG A 854 CD - NE - CZ ANGL. DEV. = 10.6 DEGREES REMARK 500 ARG A 854 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 ARG A 878 NE - CZ - NH1 ANGL. DEV. = 4.8 DEGREES REMARK 500 ARG A 878 NE - CZ - NH2 ANGL. DEV. = -6.1 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 LEU A 108 -88.78 -89.65 REMARK 500 TYR A 138 -125.15 65.41 REMARK 500 ASP A 156 -21.40 49.62 REMARK 500 PHE A 173 -1.07 -144.52 REMARK 500 ASP A 378 -163.48 -165.75 REMARK 500 LEU A 403 -1.21 -50.32 REMARK 500 ASN A 497 -155.19 -99.36 REMARK 500 GLU A 540 106.77 -53.06 REMARK 500 ALA A 541 70.92 -103.46 REMARK 500 SER A 625 -170.98 -174.94 REMARK 500 TYR A 667 -39.71 -137.31 REMARK 500 TYR A 684 32.38 -158.06 REMARK 500 GLU A 782 -53.50 -126.67 REMARK 500 ARG A 805 -53.89 -143.75 REMARK 500 ALA A 859 56.48 -160.10 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1QBA RELATED DB: PDB REMARK 900 RELATED ID: 1QBB RELATED DB: PDB REMARK 900 RELATED ID: 1QBC RELATED DB: PDB REMARK 900 RELATED ID: 1C7T RELATED DB: PDB REMARK 900 BETA-N-ACETYLHEXOSAMINIDASE MUTANT E540D DBREF 1C7S A 28 885 UNP Q54468 CHB_SERMA 28 885 SEQADV 1C7S GLN A 484 UNP Q54468 PRO 484 CONFLICT SEQADV 1C7S ALA A 539 UNP Q54468 ASP 539 ENGINEERED MUTATION SEQADV 1C7S GLY A 828 UNP Q54468 ALA 828 CONFLICT SEQRES 1 A 858 ASP GLN GLN LEU VAL ASP GLN LEU SER GLN LEU LYS LEU SEQRES 2 A 858 ASN VAL LYS MET LEU ASP ASN ARG ALA GLY GLU ASN GLY SEQRES 3 A 858 VAL ASP CYS ALA ALA LEU GLY ALA ASP TRP ALA SER CYS SEQRES 4 A 858 ASN ARG VAL LEU PHE THR LEU SER ASN ASP GLY GLN ALA SEQRES 5 A 858 ILE ASP GLY LYS ASP TRP VAL ILE TYR PHE HIS SER PRO SEQRES 6 A 858 ARG GLN THR LEU ARG VAL ASP ASN ASP GLN PHE LYS ILE SEQRES 7 A 858 ALA HIS LEU THR GLY ASP LEU TYR LYS LEU GLU PRO THR SEQRES 8 A 858 ALA LYS PHE SER GLY PHE PRO ALA GLY LYS ALA VAL GLU SEQRES 9 A 858 ILE PRO VAL VAL ALA GLU TYR TRP GLN LEU PHE ARG ASN SEQRES 10 A 858 ASP PHE LEU PRO ARG TRP TYR ALA THR SER GLY ASP ALA SEQRES 11 A 858 LYS PRO LYS MET LEU ALA ASN THR ASP THR GLU ASN LEU SEQRES 12 A 858 ASP GLN PHE VAL ALA PRO PHE THR GLY ASP GLN TRP LYS SEQRES 13 A 858 ARG THR LYS ASP ASP LYS ASN ILE LEU MET THR PRO ALA SEQRES 14 A 858 SER ARG PHE VAL SER ASN ALA ASP LEU GLN THR LEU PRO SEQRES 15 A 858 ALA GLY ALA LEU ARG GLY LYS ILE VAL PRO THR PRO MET SEQRES 16 A 858 GLN VAL LYS VAL HIS ALA GLN ASP ALA ASP LEU ARG LYS SEQRES 17 A 858 GLY VAL ALA LEU ASP LEU SER THR LEU VAL LYS PRO ALA SEQRES 18 A 858 ALA ASP VAL VAL SER GLN ARG PHE ALA LEU LEU GLY VAL SEQRES 19 A 858 PRO VAL GLN THR ASN GLY TYR PRO ILE LYS THR ASP ILE SEQRES 20 A 858 GLN PRO GLY LYS PHE LYS GLY ALA MET ALA VAL SER GLY SEQRES 21 A 858 ALA TYR GLU LEU LYS ILE GLY LYS LYS GLU ALA GLN VAL SEQRES 22 A 858 ILE GLY PHE ASP GLN ALA GLY VAL PHE TYR GLY LEU GLN SEQRES 23 A 858 SER ILE LEU SER LEU VAL PRO SER ASP GLY SER GLY LYS SEQRES 24 A 858 ILE ALA THR LEU ASP ALA SER ASP ALA PRO ARG PHE PRO SEQRES 25 A 858 TYR ARG GLY ILE PHE LEU ASP VAL ALA ARG ASN PHE HIS SEQRES 26 A 858 LYS LYS ASP ALA VAL LEU ARG LEU LEU ASP GLN MET ALA SEQRES 27 A 858 ALA TYR LYS LEU ASN LYS PHE HIS PHE HIS LEU SER ASP SEQRES 28 A 858 ASP GLU GLY TRP ARG ILE GLU ILE PRO GLY LEU PRO GLU SEQRES 29 A 858 LEU THR GLU VAL GLY GLY GLN ARG CYS HIS ASP LEU SER SEQRES 30 A 858 GLU THR THR CYS LEU LEU PRO GLN TYR GLY GLN GLY PRO SEQRES 31 A 858 ASP VAL TYR GLY GLY PHE PHE SER ARG GLN ASP TYR ILE SEQRES 32 A 858 ASP ILE ILE LYS TYR ALA GLN ALA ARG GLN ILE GLU VAL SEQRES 33 A 858 ILE PRO GLU ILE ASP MET PRO ALA HIS ALA ARG ALA ALA SEQRES 34 A 858 VAL VAL SER MET GLU ALA ARG TYR LYS LYS LEU HIS ALA SEQRES 35 A 858 ALA GLY LYS GLU GLN GLU ALA ASN GLU PHE ARG LEU VAL SEQRES 36 A 858 ASP GLN THR ASP THR SER ASN THR THR SER VAL GLN PHE SEQRES 37 A 858 PHE ASN ARG GLN SER TYR LEU ASN PRO CYS LEU ASP SER SEQRES 38 A 858 SER GLN ARG PHE VAL ASP LYS VAL ILE GLY GLU ILE ALA SEQRES 39 A 858 GLN MET HIS LYS GLU ALA GLY GLN PRO ILE LYS THR TRP SEQRES 40 A 858 HIS PHE GLY GLY ALA GLU ALA LYS ASN ILE ARG LEU GLY SEQRES 41 A 858 ALA GLY TYR THR ASP LYS ALA LYS PRO GLU PRO GLY LYS SEQRES 42 A 858 GLY ILE ILE ASP GLN SER ASN GLU ASP LYS PRO TRP ALA SEQRES 43 A 858 LYS SER GLN VAL CYS GLN THR MET ILE LYS GLU GLY LYS SEQRES 44 A 858 VAL ALA ASP MET GLU HIS LEU PRO SER TYR PHE GLY GLN SEQRES 45 A 858 GLU VAL SER LYS LEU VAL LYS ALA HIS GLY ILE ASP ARG SEQRES 46 A 858 MET GLN ALA TRP GLN ASP GLY LEU LYS ASP ALA GLU SER SEQRES 47 A 858 SER LYS ALA PHE ALA THR SER ARG VAL GLY VAL ASN PHE SEQRES 48 A 858 TRP ASP THR LEU TYR TRP GLY GLY PHE ASP SER VAL ASN SEQRES 49 A 858 ASP TRP ALA ASN LYS GLY TYR GLU VAL VAL VAL SER ASN SEQRES 50 A 858 PRO ASP TYR VAL TYR MET ASP PHE PRO TYR GLU VAL ASN SEQRES 51 A 858 PRO ASP GLU ARG GLY TYR TYR TRP GLY THR ARG PHE SER SEQRES 52 A 858 ASP GLU ARG LYS VAL PHE SER PHE ALA PRO ASP ASN MET SEQRES 53 A 858 PRO GLN ASN ALA GLU THR SER VAL ASP ARG ASP GLY ASN SEQRES 54 A 858 HIS PHE ASN ALA LYS SER ASP LYS PRO TRP PRO GLY ALA SEQRES 55 A 858 TYR GLY LEU SER ALA GLN LEU TRP SER GLU THR GLN ARG SEQRES 56 A 858 THR ASP PRO GLN MET GLU TYR MET ILE PHE PRO ARG ALA SEQRES 57 A 858 LEU SER VAL ALA GLU ARG SER TRP HIS ARG ALA GLY TRP SEQRES 58 A 858 GLU GLN ASP TYR ARG ALA GLY ARG GLU TYR LYS GLY GLY SEQRES 59 A 858 GLU THR HIS PHE VAL ASP THR GLN ALA LEU GLU LYS ASP SEQRES 60 A 858 TRP LEU ARG PHE ALA ASN ILE LEU GLY GLN ARG GLU LEU SEQRES 61 A 858 ALA LYS LEU ASP LYS GLY GLY VAL ALA TYR ARG LEU PRO SEQRES 62 A 858 VAL PRO GLY ALA ARG VAL ALA GLY GLY LYS LEU GLU ALA SEQRES 63 A 858 ASN ILE ALA LEU PRO GLY LEU GLY ILE GLU TYR SER THR SEQRES 64 A 858 ASP GLY GLY LYS GLN TRP GLN ARG TYR ASP ALA LYS ALA SEQRES 65 A 858 LYS PRO ALA VAL SER GLY GLU VAL GLN VAL ARG SER VAL SEQRES 66 A 858 SER PRO ASP GLY LYS ARG TYR SER ARG ALA GLU LYS VAL HET NAG B 1 15 HET NAG B 2 14 HET SO4 A2001 5 HET SO4 A2002 5 HET SO4 A2003 5 HET SO4 A2004 5 HETNAM NAG 2-ACETAMIDO-2-DEOXY-BETA-D-GLUCOPYRANOSE HETNAM SO4 SULFATE ION HETSYN NAG N-ACETYL-BETA-D-GLUCOSAMINE; 2-ACETAMIDO-2-DEOXY-BETA- HETSYN 2 NAG D-GLUCOSE; 2-ACETAMIDO-2-DEOXY-D-GLUCOSE; 2-ACETAMIDO- HETSYN 3 NAG 2-DEOXY-GLUCOSE; N-ACETYL-D-GLUCOSAMINE FORMUL 2 NAG 2(C8 H15 N O6) FORMUL 3 SO4 4(O4 S 2-) FORMUL 7 HOH *821(H2 O) HELIX 1 1 ASP A 28 SER A 36 1 9 HELIX 2 2 ARG A 48 GLY A 53 5 6 HELIX 3 3 ALA A 61 ALA A 64 5 4 HELIX 4 4 PHE A 142 PHE A 146 5 5 HELIX 5 5 ALA A 163 ASP A 166 5 4 HELIX 6 6 ASN A 169 PHE A 173 5 5 HELIX 7 7 THR A 194 ASN A 202 1 9 HELIX 8 8 PRO A 209 ARG A 214 5 6 HELIX 9 9 VAL A 245 LEU A 259 1 15 HELIX 10 10 PRO A 276 PHE A 279 5 4 HELIX 11 11 LYS A 280 ALA A 284 5 5 HELIX 12 12 ASP A 304 VAL A 319 1 16 HELIX 13 13 LYS A 353 TYR A 367 1 15 HELIX 14 14 PRO A 390 VAL A 395 1 6 HELIX 15 15 SER A 425 ALA A 438 1 14 HELIX 16 16 ALA A 453 ALA A 470 1 18 HELIX 17 17 LYS A 472 PHE A 479 1 8 HELIX 18 18 ASN A 497 TYR A 501 5 5 HELIX 19 19 LEU A 506 ALA A 527 1 22 HELIX 20 20 ASN A 543 GLY A 547 5 5 HELIX 21 21 SER A 575 GLU A 584 1 10 HELIX 22 22 ASP A 589 GLU A 591 5 3 HELIX 23 23 HIS A 592 HIS A 608 1 17 HELIX 24 24 ASP A 618 LYS A 621 5 4 HELIX 25 25 SER A 625 PHE A 629 5 5 HELIX 26 26 GLY A 645 LYS A 656 1 12 HELIX 27 27 ASN A 664 TYR A 669 1 6 HELIX 28 28 ASP A 691 PHE A 698 1 8 HELIX 29 29 ASN A 702 THR A 709 5 8 HELIX 30 30 THR A 743 PHE A 752 1 10 HELIX 31 31 PRO A 753 HIS A 764 1 12 HELIX 32 32 ASP A 787 ARG A 805 1 19 HELIX 33 33 ARG A 805 GLY A 813 1 9 HELIX 34 34 ASP A 856 LYS A 860 5 5 SHEET 1 A 4 LYS A 39 ASP A 46 0 SHEET 2 A 4 CYS A 66 ASN A 75 -1 O ARG A 68 N LEU A 45 SHEET 3 A 4 LYS A 128 GLU A 137 -1 O LYS A 128 N ASN A 75 SHEET 4 A 4 THR A 95 VAL A 98 -1 N LEU A 96 O VAL A 135 SHEET 1 B 5 PHE A 103 HIS A 107 0 SHEET 2 B 5 LEU A 112 PRO A 117 -1 N LYS A 114 O ALA A 106 SHEET 3 B 5 VAL A 86 HIS A 90 -1 O ILE A 87 N LEU A 115 SHEET 4 B 5 TYR A 151 THR A 153 -1 O TYR A 151 N TYR A 88 SHEET 5 B 5 LYS A 160 MET A 161 -1 O LYS A 160 N ALA A 152 SHEET 1 C 6 GLN A 223 ASP A 232 0 SHEET 2 C 6 LYS A 326 ASP A 334 -1 O ILE A 327 N ALA A 231 SHEET 3 C 6 TYR A 289 ILE A 293 -1 N TYR A 289 O ASP A 334 SHEET 4 C 6 ALA A 298 GLY A 302 -1 N GLN A 299 O LYS A 292 SHEET 5 C 6 TYR A 268 ILE A 274 1 O PRO A 269 N ALA A 298 SHEET 6 C 6 VAL A 237 LEU A 239 1 O ALA A 238 N ILE A 270 SHEET 1 D 9 TYR A 340 ASP A 346 0 SHEET 2 D 9 LYS A 371 HIS A 375 1 O LYS A 371 N ILE A 343 SHEET 3 D 9 GLU A 442 MET A 449 1 O GLU A 442 N PHE A 372 SHEET 4 D 9 TRP A 534 GLY A 537 1 N HIS A 535 O PRO A 445 SHEET 5 D 9 ARG A 612 TRP A 616 1 O ARG A 612 N TRP A 534 SHEET 6 D 9 ARG A 633 PHE A 638 1 O ARG A 633 N MET A 613 SHEET 7 D 9 GLU A 659 VAL A 662 1 O GLU A 659 N VAL A 636 SHEET 8 D 9 GLY A 731 LEU A 736 1 O GLY A 731 N VAL A 662 SHEET 9 D 9 TYR A 340 ASP A 346 1 O TYR A 340 N LEU A 732 SHEET 1 E 2 SER A 377 ASP A 378 0 SHEET 2 E 2 GLY A 381 TRP A 382 -1 O GLY A 381 N ASP A 378 SHEET 1 F 2 GLN A 398 ARG A 399 0 SHEET 2 F 2 TYR A 420 GLY A 421 -1 O TYR A 420 N ARG A 399 SHEET 1 G 2 TYR A 550 ASP A 552 0 SHEET 2 G 2 GLY A 561 ILE A 563 1 O GLY A 561 N THR A 551 SHEET 1 H 2 ASN A 719 ALA A 720 0 SHEET 2 H 2 TYR A 778 LYS A 779 -1 N TYR A 778 O ALA A 720 SHEET 1 I 2 GLY A 823 ALA A 827 0 SHEET 2 I 2 LYS A 830 ASN A 834 -1 O LYS A 830 N ALA A 827 SHEET 1 J 4 GLN A 853 ARG A 854 0 SHEET 2 J 4 GLY A 841 SER A 845 -1 O TYR A 844 N GLN A 853 SHEET 3 J 4 GLN A 868 VAL A 872 -1 N GLN A 868 O SER A 845 SHEET 4 J 4 GLU A 883 LYS A 884 -1 O GLU A 883 N VAL A 869 SSBOND 1 CYS A 56 CYS A 66 1555 1555 2.04 SSBOND 2 CYS A 400 CYS A 408 1555 1555 2.04 SSBOND 3 CYS A 505 CYS A 578 1555 1555 2.04 LINK O4 NAG B 1 C1 NAG B 2 1555 1555 1.41 CISPEP 1 VAL A 218 PRO A 219 0 -0.79 CISPEP 2 MET A 449 PRO A 450 0 0.22 CISPEP 3 PHE A 752 PRO A 753 0 2.76 CRYST1 108.794 99.960 86.308 90.00 90.00 90.00 P 21 21 2 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 0.009192 0.000000 0.000000 0.00000 SCALE2 0.000000 0.010004 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011586 0.00000