3CY5 - Header Asymmetric Unit

HEADER OXYGEN STORAGE, OXYGEN TRANSPORT 25-APR-08 3CY5

TITLE CRYSTAL STRUCTURE DETERMINATION OF BUFFALO (BUBALUS BUBALIS) TITLE 2 HEMOGLOBIN AT 2 ANGSTROM RESOLUTION

COMPND MOL_ID: 1; COMPND 2 MOLECULE: HEMOGLOBIN SUBUNIT ALPHA-2; COMPND 3 CHAIN: A, C; COMPND 4 SYNONYM: HEMOGLOBIN ALPHA-2 CHAIN, ALPHA-2-GLOBIN, IALPHA2; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: HEMOGLOBIN SUBUNIT BETA; COMPND 7 CHAIN: B, D; COMPND 8 SYNONYM: HEMOGLOBIN BETA CHAIN, BETA-GLOBIN

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BUBALUS BUBALIS; SOURCE 3 ORGANISM_COMMON: DOMESTIC WATER BUFFALO; SOURCE 4 ORGANISM_TAXID: 89462; SOURCE 5 TISSUE: BLOOD; SOURCE 6 CELL: RED BLOOD CELLS (RBC); SOURCE 7 MOL_ID: 2; SOURCE 8 ORGANISM_SCIENTIFIC: BUBALUS BUBALIS; SOURCE 9 ORGANISM_COMMON: DOMESTIC WATER BUFFALO; SOURCE 10 ORGANISM_TAXID: 89462; SOURCE 11 TISSUE: BLOOD; SOURCE 12 CELL: RED BLOOD CELLS (RBC)

KEYWDS BB PHENOTYPE, BUBALUS BUBALIS, LOW OXYGEN-AFFINITY, ORTHORHOMBIC, KEYWDS 2 METHEMOGLOBIN, HEME, IRON, TRANSPORT, OXYGEN STORAGE, OXYGEN KEYWDS 3 TRANSPORT

EXPDTA X-RAY DIFFRACTION

AUTHOR M.BALASUBRAMANIAN,P.SATHYA MOORTHY,K.NEELAGANDAN,M.N.PONNUSWAMY

REVDAT 2 21-DEC-16 3CY5 1 AUTHOR VERSN REVDAT 1 28-APR-09 3CY5 0

JRNL AUTH M.BALASUBRAMANIAN,P.SATHYA MOORTHY,K.NEELAGANDAN, JRNL AUTH 2 M.N.PONNUSWAMY JRNL TITL CRYSTAL STRUCTURE DETERMINATION OF HEMOGLOBIN FROM BUFFALO JRNL TITL 2 (BUBALUS BUBALIS) AT 2 ANGSTROM RESOLUTION JRNL REF TO BE PUBLISHED JRNL REFN

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH K.NEELAGANDAN,P.SATHYA MOORTHY,M.BALASUBRAMANIAN, REMARK 1 AUTH 2 M.N.PONNUSWAMY REMARK 1 TITL CRYSTALLIZATION OF SHEEP (OVIS ARIES) AND GOAT (CAPRA REMARK 1 TITL 2 HIRCUS) HAEMOGLOBINS UNDER UNBUFFERED LOW-SALT CONDITIONS REMARK 1 REF ACTA CRYSTALLOGR.,SECT.F V. 63 887 2007 REMARK 1 REFN ISSN 1744-3091 REMARK 1 PMID 17909297 REMARK 1 DOI 10.1107/S1744309107044296 REMARK 1 REFERENCE 2 REMARK 1 AUTH M.BALASUBRAMANIAN,P.SATHYA MOORTHY,K.NEELAGANDAN, REMARK 1 AUTH 2 M.N.PONNUSWAMY REMARK 1 TITL PURIFICATION, CRYSTALLIZATION AND PRELIMINARY REMARK 1 TITL 2 CRYSTALLOGRAPHIC STUDY OF LOW OXYGEN-AFFINITY HAEMOGLOBIN REMARK 1 TITL 3 FROM CAT (FELIS SILVESTRIS CATUS) IN TWO DIFFERENT CRYSTAL REMARK 1 TITL 4 FORMS REMARK 1 REF ACTA CRYSTALLOGR.,SECT.F V. 65 313 2009 REMARK 1 REFN ISSN 1744-3091 REMARK 1 PMID 19255493 REMARK 1 DOI 10.1107/S1744309109004503 REMARK 1 REFERENCE 3 REMARK 1 AUTH M.BALASUBRAMANIAN,P.SATHYA MOORTHY,K.NEELAGANDAN, REMARK 1 AUTH 2 M.N.PONNUSWAMY REMARK 1 TITL PRELIMINARY CRYSTALLOGRAPHIC STUDY OF HEMOGLOBIN FROM REMARK 1 TITL 2 BUFFALO (BUBALUS BUBALIS): A LOW OXYGEN AFFINITY SPECIES REMARK 1 REF PROTEIN PEPT.LETT. V. 16 213 2009 REMARK 1 REFN ISSN 0929-8665 REMARK 1 PMID 19200047 REMARK 1 REFERENCE 4 REMARK 1 AUTH P.SATHYA MOORTHY,K.NEELAGANDAN,M.BALASUBRAMANIAN, REMARK 1 AUTH 2 M.N.PONNUSWAMY REMARK 1 TITL PURIFICATION, CRYSTALLIZATION AND PRELIMINARY X-RAY REMARK 1 TITL 2 DIFFRACTION STUDIES ON GOAT (CAPRA HIRCUS) HEMOGLOBIN - A REMARK 1 TITL 3 LOW OXYGEN AFFINITY SPECIES REMARK 1 REF PROTEIN PEPT.LETT. V. 16 454 2009 REMARK 1 REFN ISSN 0929-8665 REMARK 1 PMID 19356147

REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0019 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON 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) : 29.22 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 95.4 REMARK 3 NUMBER OF REFLECTIONS : 30810 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) : 0.201 REMARK 3 R VALUE (WORKING SET) : 0.193 REMARK 3 FREE R VALUE : 0.270 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 3427 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) : 2251 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 96.03 REMARK 3 BIN R VALUE (WORKING SET) : 0.2520 REMARK 3 BIN FREE R VALUE SET COUNT : 262 REMARK 3 BIN FREE R VALUE : 0.4020 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 4390 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 172 REMARK 3 SOLVENT ATOMS : 309 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 28.32 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.87000 REMARK 3 B22 (A**2) : 0.51000 REMARK 3 B33 (A**2) : 1.35000 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): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): 0.226 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.158 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 12.511 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.953 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.913 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 4706 ; 0.013 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 6428 ; 1.210 ; 2.057 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 568 ; 5.304 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 188 ;35.974 ;23.936 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 726 ;14.756 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 14 ;16.369 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 694 ; 0.088 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 3552 ; 0.004 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 2290 ; 0.205 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 3176 ; 0.290 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 235 ; 0.140 ; 0.200 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): 65 ; 0.261 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 10 ; 0.155 ; 0.200 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): 2900 ; 0.856 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 4526 ; 1.203 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 2017 ; 2.151 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 1894 ; 3.013 ; 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 : 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: NULL

REMARK 4 REMARK 4 3CY5 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 02-MAY-08. REMARK 100 THE RCSB ID CODE IS RCSB047356.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 11-MAR-08 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.7 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 : BRUKER AXS MICROSTAR REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54179 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : BRUKER SMART 6000 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 34558 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL REMARK 200 DATA REDUNDANCY : 2.910 REMARK 200 R MERGE (I) : NULL 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) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.07 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : 2.76 REMARK 200 R MERGE FOR SHELL (I) : 0.29460 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 1.000 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 1G08 REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 41.07 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.09 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 50% PEG 3350, 50MM PHOSPHATE BUFFER PH REMARK 280 6.7, 1M NACL, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K

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 31.53200 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 55.11200 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 37.33850 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 55.11200 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 31.53200 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 37.33850 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL

REMARK 300 REMARK 300 BIOMOLECULE: 1, 2, 3 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: 10990 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 24050 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -104.0 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 4080 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 13540 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -45.0 KCAL/MOL 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 REMARK 350 BIOMOLECULE: 3 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 3990 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 13430 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -47.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 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 ARG B 40 -39.42 -39.49 REMARK 500 ASP B 80 57.89 -142.05 REMARK 500 LYS C 139 59.37 -116.45 REMARK 500 ASP D 80 51.37 -151.68 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CHIRAL CENTERS REMARK 500 REMARK 500 UNEXPECTED CONFIGURATION OF THE FOLLOWING CHIRAL REMARK 500 CENTER(S) USING IMPROPER CA--C--CB--N CHIRALITY REMARK 500 FOR AMINO ACIDS AND C1'--O4'--N1(N9)--C2' FOR REMARK 500 NUCLEIC ACIDS OR EQUIVALENT ANGLE REMARK 500 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,A1,6X,F5.1,6X,A1,10X,A1,3X,A16) REMARK 500 REMARK 500 M RES CSSEQI IMPROPER EXPECTED FOUND DETAILS REMARK 500 VAL D 20 19.3 L L OUTSIDE RANGE REMARK 500 REMARK 500 REMARK: NULL

REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM A 142 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 87 NE2 REMARK 620 2 HEM A 142 NA 90.0 REMARK 620 3 HEM A 142 NB 86.6 89.0 REMARK 620 4 HEM A 142 NC 88.2 176.6 93.7 REMARK 620 5 HEM A 142 ND 93.0 87.6 176.6 89.6 REMARK 620 6 HOH A 154 O 169.5 97.1 85.9 85.0 94.9 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 147 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 92 NE2 REMARK 620 2 HEM B 147 NA 93.2 REMARK 620 3 HEM B 147 NB 86.3 87.5 REMARK 620 4 HEM B 147 NC 88.2 178.0 91.2 REMARK 620 5 HEM B 147 ND 94.7 89.6 177.0 91.7 REMARK 620 6 HOH B 174 O 169.9 93.5 86.4 85.0 92.9 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM C 142 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS C 87 NE2 REMARK 620 2 HEM C 142 NA 92.4 REMARK 620 3 HEM C 142 NB 85.5 90.4 REMARK 620 4 HEM C 142 NC 86.6 177.6 91.6 REMARK 620 5 HEM C 142 ND 94.6 89.0 179.5 88.9 REMARK 620 6 HOH C 169 O 168.0 97.5 87.7 83.8 92.4 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM D 147 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS D 92 NE2 REMARK 620 2 HEM D 147 NA 93.1 REMARK 620 3 HEM D 147 NB 89.4 88.6 REMARK 620 4 HEM D 147 NC 82.1 175.2 91.1 REMARK 620 5 HEM D 147 ND 89.6 92.9 178.3 87.4 REMARK 620 6 HOH D 167 O 169.9 96.7 88.4 88.1 92.4 REMARK 620 N 1 2 3 4 5

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 142 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 147 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM C 142 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM D 147

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2QU0 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE DETERMINATION OF SHEEP METHEMOGLOBIN AT REMARK 900 2.7 ANGSTROM RESOLUTION REMARK 900 RELATED ID: 2RI4 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE DETERMINATION OF GOAT METHEMOGLOBIN AT REMARK 900 2.7 ANGSTROM

DBREF 3CY5 A 1 141 UNP Q9TSN8 HBA2_BUBBU 2 142 DBREF 3CY5 B 2 146 UNP P67820 HBB_BUBBU 1 145 DBREF 3CY5 C 1 141 UNP Q9TSN8 HBA2_BUBBU 2 142 DBREF 3CY5 D 2 146 UNP P67820 HBB_BUBBU 1 145

SEQRES 1 A 141 VAL LEU SER ALA ALA ASP LYS SER ASN ILE GLN ALA ALA SEQRES 2 A 141 TRP GLY LYS VAL GLY GLY HIS ALA ALA ASP TYR GLY ALA SEQRES 3 A 141 GLU ALA LEU GLU ARG MET PHE LEU SER PHE PRO THR THR SEQRES 4 A 141 LYS THR TYR PHE PRO HIS PHE ASP LEU SER HIS GLY SER SEQRES 5 A 141 ALA GLN VAL LYS GLY HIS GLY ALA LYS VAL ALA ASN ALA SEQRES 6 A 141 LEU THR LYS ALA VAL GLY HIS LEU ASP ASP LEU PRO GLY SEQRES 7 A 141 ALA LEU SER GLU LEU SER ASP LEU HIS ALA HIS LYS LEU SEQRES 8 A 141 ARG VAL ASP PRO VAL ASN PHE LYS LEU LEU SER HIS SER SEQRES 9 A 141 LEU LEU VAL THR LEU ALA SER HIS LEU PRO ASN ASP PHE SEQRES 10 A 141 THR PRO ALA VAL HIS ALA SER LEU ASP LYS PHE LEU ALA SEQRES 11 A 141 SER VAL SER THR VAL LEU THR SER LYS TYR ARG SEQRES 1 B 145 MET LEU THR ALA GLU GLU LYS ALA ALA VAL THR ALA PHE SEQRES 2 B 145 TRP GLY LYS VAL HIS VAL ASP GLU VAL GLY GLY GLU ALA SEQRES 3 B 145 LEU GLY ARG LEU LEU VAL VAL TYR PRO TRP THR GLN ARG SEQRES 4 B 145 PHE PHE GLU SER PHE GLY ASP LEU SER THR ALA ASP ALA SEQRES 5 B 145 VAL MET ASN ASN PRO LYS VAL LYS ALA HIS GLY LYS LYS SEQRES 6 B 145 VAL LEU ASP SER PHE SER ASN GLY MET LYS HIS LEU ASP SEQRES 7 B 145 ASP LEU LYS GLY THR PHE ALA ALA LEU SER GLU LEU HIS SEQRES 8 B 145 CYS ASP LYS LEU HIS VAL ASP PRO GLU ASN PHE LYS LEU SEQRES 9 B 145 LEU GLY ASN VAL LEU VAL VAL VAL LEU ALA ARG HIS PHE SEQRES 10 B 145 GLY LYS GLU PHE THR PRO VAL LEU GLN ALA ASP PHE GLN SEQRES 11 B 145 LYS VAL VAL ALA GLY VAL ALA ASN ALA LEU ALA HIS ARG SEQRES 12 B 145 TYR HIS SEQRES 1 C 141 VAL LEU SER ALA ALA ASP LYS SER ASN ILE GLN ALA ALA SEQRES 2 C 141 TRP GLY LYS VAL GLY GLY HIS ALA ALA ASP TYR GLY ALA SEQRES 3 C 141 GLU ALA LEU GLU ARG MET PHE LEU SER PHE PRO THR THR SEQRES 4 C 141 LYS THR TYR PHE PRO HIS PHE ASP LEU SER HIS GLY SER SEQRES 5 C 141 ALA GLN VAL LYS GLY HIS GLY ALA LYS VAL ALA ASN ALA SEQRES 6 C 141 LEU THR LYS ALA VAL GLY HIS LEU ASP ASP LEU PRO GLY SEQRES 7 C 141 ALA LEU SER GLU LEU SER ASP LEU HIS ALA HIS LYS LEU SEQRES 8 C 141 ARG VAL ASP PRO VAL ASN PHE LYS LEU LEU SER HIS SER SEQRES 9 C 141 LEU LEU VAL THR LEU ALA SER HIS LEU PRO ASN ASP PHE SEQRES 10 C 141 THR PRO ALA VAL HIS ALA SER LEU ASP LYS PHE LEU ALA SEQRES 11 C 141 SER VAL SER THR VAL LEU THR SER LYS TYR ARG SEQRES 1 D 145 MET LEU THR ALA GLU GLU LYS ALA ALA VAL THR ALA PHE SEQRES 2 D 145 TRP GLY LYS VAL HIS VAL ASP GLU VAL GLY GLY GLU ALA SEQRES 3 D 145 LEU GLY ARG LEU LEU VAL VAL TYR PRO TRP THR GLN ARG SEQRES 4 D 145 PHE PHE GLU SER PHE GLY ASP LEU SER THR ALA ASP ALA SEQRES 5 D 145 VAL MET ASN ASN PRO LYS VAL LYS ALA HIS GLY LYS LYS SEQRES 6 D 145 VAL LEU ASP SER PHE SER ASN GLY MET LYS HIS LEU ASP SEQRES 7 D 145 ASP LEU LYS GLY THR PHE ALA ALA LEU SER GLU LEU HIS SEQRES 8 D 145 CYS ASP LYS LEU HIS VAL ASP PRO GLU ASN PHE LYS LEU SEQRES 9 D 145 LEU GLY ASN VAL LEU VAL VAL VAL LEU ALA ARG HIS PHE SEQRES 10 D 145 GLY LYS GLU PHE THR PRO VAL LEU GLN ALA ASP PHE GLN SEQRES 11 D 145 LYS VAL VAL ALA GLY VAL ALA ASN ALA LEU ALA HIS ARG SEQRES 12 D 145 TYR HIS

HET HEM A 142 43 HET HEM B 147 43 HET HEM C 142 43 HET HEM D 147 43

HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE

HETSYN HEM HEME

FORMUL 5 HEM 4(C34 H32 FE N4 O4) FORMUL 9 HOH *309(H2 O)

HELIX 1 1 SER A 3 GLY A 18 1 16 HELIX 2 2 HIS A 20 PHE A 36 1 17 HELIX 3 3 PRO A 37 PHE A 43 5 7 HELIX 4 4 SER A 52 GLY A 71 1 20 HELIX 5 5 ASP A 75 LEU A 80 1 6 HELIX 6 6 LEU A 80 HIS A 89 1 10 HELIX 7 7 ASP A 94 LEU A 113 1 20 HELIX 8 8 THR A 118 THR A 137 1 20 HELIX 9 9 THR B 4 VAL B 18 1 15 HELIX 10 10 HIS B 19 TYR B 35 1 17 HELIX 11 11 PRO B 36 GLY B 46 5 11 HELIX 12 12 THR B 50 ASN B 56 1 7 HELIX 13 13 ASN B 57 HIS B 77 1 21 HELIX 14 14 ASP B 80 PHE B 85 1 6 HELIX 15 15 PHE B 85 LYS B 95 1 11 HELIX 16 16 PRO B 100 GLY B 119 1 20 HELIX 17 17 LYS B 120 PHE B 122 5 3 HELIX 18 18 THR B 123 ALA B 142 1 20 HELIX 19 19 HIS B 143 HIS B 146 5 4 HELIX 20 20 ASP C 6 GLY C 18 1 13 HELIX 21 21 HIS C 20 PHE C 36 1 17 HELIX 22 22 PRO C 37 PHE C 43 5 7 HELIX 23 23 SER C 52 GLY C 71 1 20 HELIX 24 24 ASP C 75 LEU C 80 1 6 HELIX 25 25 LEU C 80 HIS C 89 1 10 HELIX 26 26 ASP C 94 LEU C 113 1 20 HELIX 27 27 THR C 118 THR C 137 1 20 HELIX 28 28 THR D 4 GLY D 16 1 13 HELIX 29 29 HIS D 19 TYR D 35 1 17 HELIX 30 30 PRO D 36 GLY D 46 5 11 HELIX 31 31 THR D 50 ASN D 56 1 7 HELIX 32 32 ASN D 57 HIS D 77 1 21 HELIX 33 33 ASP D 80 ASP D 94 1 15 HELIX 34 34 PRO D 100 GLY D 119 1 20 HELIX 35 35 LYS D 120 PHE D 122 5 3 HELIX 36 36 THR D 123 ALA D 142 1 20 HELIX 37 37 HIS D 143 HIS D 146 5 4

LINK NE2 HIS A 87 FE HEM A 142 1555 1555 2.16 LINK NE2 HIS B 92 FE HEM B 147 1555 1555 2.08 LINK NE2 HIS C 87 FE HEM C 142 1555 1555 2.00 LINK NE2 HIS D 92 FE HEM D 147 1555 1555 2.08 LINK FE HEM A 142 O HOH A 154 1555 1555 2.05 LINK FE HEM B 147 O HOH B 174 1555 1555 2.24 LINK FE HEM C 142 O HOH C 169 1555 1555 2.20 LINK FE HEM D 147 O HOH D 167 1555 1555 2.09

SITE 1 AC1 15 TYR A 42 PHE A 43 HIS A 45 HIS A 58 SITE 2 AC1 15 LYS A 61 LEU A 83 HIS A 87 LEU A 91 SITE 3 AC1 15 VAL A 93 ASN A 97 PHE A 98 LEU A 101 SITE 4 AC1 15 LEU A 136 HOH A 154 HOH A 200 SITE 1 AC2 16 ALA A 4 THR B 38 PHE B 41 PHE B 42 SITE 2 AC2 16 HIS B 63 LYS B 66 SER B 70 LEU B 88 SITE 3 AC2 16 HIS B 92 LEU B 96 ASN B 102 PHE B 103 SITE 4 AC2 16 LEU B 106 LEU B 141 HOH B 165 HOH B 174 SITE 1 AC3 16 TYR C 42 PHE C 43 HIS C 45 HIS C 58 SITE 2 AC3 16 LYS C 61 LEU C 83 LEU C 86 HIS C 87 SITE 3 AC3 16 LEU C 91 VAL C 93 ASN C 97 PHE C 98 SITE 4 AC3 16 LEU C 101 LEU C 136 HOH C 169 HOH C 206 SITE 1 AC4 14 LYS B 8 THR D 38 PHE D 41 PHE D 42 SITE 2 AC4 14 HIS D 63 LYS D 66 SER D 70 PHE D 71 SITE 3 AC4 14 LEU D 88 HIS D 92 ASN D 102 LEU D 106 SITE 4 AC4 14 LEU D 141 HOH D 167

CRYST1 63.064 74.677 110.224 90.00 90.00 90.00 P 21 21 21 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 0.015857 0.000000 0.000000 0.00000

SCALE2 0.000000 0.013391 0.000000 0.00000

SCALE3 0.000000 0.000000 0.009072 0.00000