1ZT1 - Header Asymmetric Unit

HEADER IMMUNE SYSTEM 26-MAY-05 1ZT1

TITLE CRYSTAL STRUCTURE OF CLASS I MHC H-2KK IN COMPLEX WITH AN TITLE 2 OCTAPEPTIDE

COMPND MOL_ID: 1; COMPND 2 MOLECULE: H-2 CLASS I HISTOCOMPATIBILITY ANTIGEN, K-K COMPND 3 ALPHA CHAIN; COMPND 4 CHAIN: A; COMPND 5 FRAGMENT: RESIDUES 0-276; COMPND 6 SYNONYM: CLASS I MOUSE MHC H-2KK HEAVY CHAIN, H- 2KK; COMPND 7 ENGINEERED: YES; COMPND 8 MOL_ID: 2; COMPND 9 MOLECULE: BETA-2-MICROGLOBULIN; COMPND 10 CHAIN: B; COMPND 11 ENGINEERED: YES; COMPND 12 MOL_ID: 3; COMPND 13 MOLECULE: INFLUENZA VIRUS EPITOPE, FEANGNLI; COMPND 14 CHAIN: P; COMPND 15 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MUS MUSCULUS; SOURCE 3 ORGANISM_COMMON: HOUSE MOUSE; SOURCE 4 ORGANISM_TAXID: 10090; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET3A; SOURCE 10 MOL_ID: 2; SOURCE 11 ORGANISM_SCIENTIFIC: MUS MUSCULUS; SOURCE 12 ORGANISM_COMMON: HOUSE MOUSE; SOURCE 13 ORGANISM_TAXID: 10090; SOURCE 14 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 15 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 16 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 17 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 18 EXPRESSION_SYSTEM_PLASMID: PET3A; SOURCE 19 MOL_ID: 3; SOURCE 20 SYNTHETIC: YES; SOURCE 21 OTHER_DETAILS: CHEMICALLY SYNTHESIZED

KEYWDS PEPTIDE BINDING GROOVE, IMMUNE SYSTEM

EXPDTA X-RAY DIFFRACTION

AUTHOR C.KELLENBERGER,A.ROUSSEL,B.MALISSEN

REVDAT 2 13-MAY-08 1ZT1 1 REMARK VERSN REVDAT 1 18-OCT-05 1ZT1 0

JRNL AUTH C.KELLENBERGER,A.ROUSSEL,B.MALISSEN JRNL TITL THE H-2KK MHC PEPTIDE-BINDING GROOVE ANCHORS THE JRNL TITL 2 BACKBONE OF AN OCTAMERIC ANTIGENIC PEPTIDE IN AN JRNL TITL 3 UNPRECEDENTED MODE JRNL REF J.IMMUNOL. V. 175 3819 2005 JRNL REFN ISSN 0022-1767 JRNL PMID 16148128

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH C.KELLENBERGER,S.PORCIERO,A.ROUSSEL REMARK 1 TITL EXPRESSION, REFOLDING, CRYSTALLIZATION AND REMARK 1 TITL 2 PRELIMINARY CRYSTALLOGRAPHIC STUDY OF MHC H-2KK REMARK 1 TITL 3 COMPLEXED WITH OCTAPEPTIDES AND NONAPEPTIDES REMARK 1 REF ACTA CRYSTALLOGR.,SECT.D V. 60 1278 2004 REMARK 1 REFN ISSN 0907-4449 REMARK 1 PMID 15213391 REMARK 1 DOI 10.1107/S090744490400931X

REMARK 2 REMARK 2 RESOLUTION. 2.50 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5 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) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 14.87 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 99.3 REMARK 3 NUMBER OF REFLECTIONS : 26053 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) : 0.212 REMARK 3 R VALUE (WORKING SET) : 0.210 REMARK 3 FREE R VALUE : 0.251 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.900 REMARK 3 FREE R VALUE TEST SET COUNT : 1344 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) : 2.50 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.56 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1863 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2450 REMARK 3 BIN FREE R VALUE SET COUNT : 99 REMARK 3 BIN FREE R VALUE : 0.3580 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3132 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 2 REMARK 3 SOLVENT ATOMS : 180 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 51.00 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 27.16 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 1.80000 REMARK 3 B22 (A**2) : 1.80000 REMARK 3 B33 (A**2) : -2.69000 REMARK 3 B12 (A**2) : 0.90000 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): 0.272 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.229 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.165 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 7.325 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.930 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.900 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 3226 ; 0.009 ; 0.021 REMARK 3 BOND LENGTHS OTHERS (A): 2770 ; 0.002 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 4381 ; 1.157 ; 1.927 REMARK 3 BOND ANGLES OTHERS (DEGREES): 6452 ; 0.777 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 375 ; 6.563 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): NULL ; NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 445 ; 0.077 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 3596 ; 0.004 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 699 ; 0.003 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 572 ; 0.178 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): 3110 ; 0.224 ; 0.200 REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): 1906 ; 0.082 ; 0.200 REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 136 ; 0.200 ; 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): 9 ; 0.087 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): 57 ; 0.309 ; 0.200 REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 5 ; 0.120 ; 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): 1894 ; 0.516 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 3063 ; 0.998 ; 2.000 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 1332 ; 1.342 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 1318 ; 2.347 ; 4.500 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: HYDROGENS HAVE BEEN ADDED IN THE REMARK 3 RIDING POSITIONS

REMARK 4 REMARK 4 1ZT1 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 30-MAY-05. REMARK 100 THE RCSB ID CODE IS RCSB033084.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 03-FEB-03 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID14-4 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9763 REMARK 200 MONOCHROMATOR : MIRRORS REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 27403 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.500 REMARK 200 RESOLUTION RANGE LOW (A) : 15.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.0 REMARK 200 DATA REDUNDANCY : 2.700 REMARK 200 R MERGE (I) : 0.08700 REMARK 200 R SYM (I) : 0.06900 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 8.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.64 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.2 REMARK 200 DATA REDUNDANCY IN SHELL : 2.70 REMARK 200 R MERGE FOR SHELL (I) : 0.41900 REMARK 200 R SYM FOR SHELL (I) : 0.33800 REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.100 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 1LEG REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 71.90 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.38 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NACL, HEPES, PH 7.5, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 293K

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-Z+2/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 72.94467 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 36.47233 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 36.47233 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 72.94467 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: TRIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 4300 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19990 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -31.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, P, 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 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 177 REMARK 465 THR A 178 REMARK 465 LEU A 179 REMARK 465 PRO A 180 REMARK 465 MET B 0 REMARK 465 ILE B 1

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 OE1 GLU A 56 O HOH A 1038 2.10 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 137 CB - CG - OD2 ANGL. DEV. = 6.0 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 ARG A 14 70.70 -156.11 REMARK 500 ASP A 29 -121.67 53.34 REMARK 500 TRP A 107 -1.17 73.73 REMARK 500 HIS B 31 129.98 -171.99 REMARK 500 LYS B 48 62.74 62.31 REMARK 500 TRP B 60 -10.04 86.47 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 A1054 DISTANCE = 9.07 ANGSTROMS REMARK 525 HOH A1149 DISTANCE = 6.45 ANGSTROMS

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 1001 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 1002

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1ZT7 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CLASS I MHC H-2KK IN COMPLEX WITH A REMARK 900 NONAPEPTIDE

DBREF 1ZT1 A 1 276 UNP P04223 HA1K_MOUSE 22 297 DBREF 1ZT1 B 1 99 UNP P01887 B2MG_MOUSE 21 119 DBREF 1ZT1 P 1 8 PDB 1ZT1 1ZT1 1 8

SEQADV 1ZT1 MET A 0 UNP P04223 INITIATING METHIONINE SEQADV 1ZT1 MET B 0 UNP P01887 INITIATING METHIONINE

SEQRES 1 A 277 MET GLY PRO HIS SER LEU ARG TYR PHE HIS THR ALA VAL SEQRES 2 A 277 SER ARG PRO GLY LEU GLY LYS PRO ARG PHE ILE SER VAL SEQRES 3 A 277 GLY TYR VAL ASP ASP THR GLN PHE VAL ARG PHE ASP SER SEQRES 4 A 277 ASP ALA GLU ASN PRO ARG TYR GLU PRO ARG VAL ARG TRP SEQRES 5 A 277 MET GLU GLN VAL GLU PRO GLU TYR TRP GLU ARG ASN THR SEQRES 6 A 277 GLN ILE ALA LYS GLY ASN GLU GLN ILE PHE ARG VAL ASN SEQRES 7 A 277 LEU ARG THR ALA LEU ARG TYR TYR ASN GLN SER ALA GLY SEQRES 8 A 277 GLY SER HIS THR PHE GLN ARG MET TYR GLY CYS GLU VAL SEQRES 9 A 277 GLY SER ASP TRP ARG LEU LEU ARG GLY TYR GLU GLN TYR SEQRES 10 A 277 ALA TYR ASP GLY CYS ASP TYR ILE ALA LEU ASN GLU ASP SEQRES 11 A 277 LEU LYS THR TRP THR ALA ALA ASP MET ALA ALA LEU ILE SEQRES 12 A 277 THR LYS HIS LYS TRP GLU GLN ALA GLY ASP ALA GLU ARG SEQRES 13 A 277 ASP ARG ALA TYR LEU GLU GLY THR CYS VAL GLU TRP LEU SEQRES 14 A 277 ARG ARG TYR LEU GLN LEU GLY ASN ALA THR LEU PRO ARG SEQRES 15 A 277 THR ASP SER PRO LYS ALA HIS VAL THR ARG HIS SER ARG SEQRES 16 A 277 PRO GLU ASP LYS VAL THR LEU ARG CYS TRP ALA LEU GLY SEQRES 17 A 277 PHE TYR PRO ALA ASP ILE THR LEU THR TRP GLN LEU ASN SEQRES 18 A 277 GLY GLU GLU LEU THR GLN ASP MET GLU LEU VAL GLU THR SEQRES 19 A 277 ARG PRO ALA GLY ASP GLY THR PHE GLN LYS TRP ALA SER SEQRES 20 A 277 VAL VAL VAL PRO LEU GLY LYS GLU GLN TYR TYR THR CYS SEQRES 21 A 277 HIS VAL TYR HIS GLN GLY LEU PRO GLU PRO LEU THR LEU SEQRES 22 A 277 ARG TRP GLU PRO SEQRES 1 B 100 MET ILE GLN LYS THR PRO GLN ILE GLN VAL TYR SER ARG SEQRES 2 B 100 HIS PRO PRO GLU ASN GLY LYS PRO ASN ILE LEU ASN CYS SEQRES 3 B 100 TYR VAL THR GLN PHE HIS PRO PRO HIS ILE GLU ILE GLN SEQRES 4 B 100 MET LEU LYS ASN GLY LYS LYS ILE PRO LYS VAL GLU MET SEQRES 5 B 100 SER ASP MET SER PHE SER LYS ASP TRP SER PHE TYR ILE SEQRES 6 B 100 LEU ALA HIS THR GLU PHE THR PRO THR GLU THR ASP THR SEQRES 7 B 100 TYR ALA CYS ARG VAL LYS HIS ASP SER MET ALA GLU PRO SEQRES 8 B 100 LYS THR VAL TYR TRP ASP ARG ASP MET SEQRES 1 P 8 PHE GLU ALA ASN GLY ASN LEU ILE

HET CL A1001 1 HET CL A1002 1

HETNAM CL CHLORIDE ION

FORMUL 4 CL 2(CL 1-) FORMUL 6 HOH *180(H2 O)

HELIX 1 1 VAL A 49 GLU A 53 5 5 HELIX 2 2 GLU A 56 TYR A 85 1 30 HELIX 3 3 ASP A 137 ALA A 150 1 14 HELIX 4 4 GLY A 151 GLY A 162 1 12 HELIX 5 5 GLY A 162 GLN A 173 1 12 HELIX 6 6 LYS A 253 GLN A 255 5 3

SHEET 1 A 8 GLU A 46 PRO A 47 0 SHEET 2 A 8 THR A 31 ASP A 37 -1 N ARG A 35 O GLU A 46 SHEET 3 A 8 ARG A 21 VAL A 28 -1 N SER A 24 O PHE A 36 SHEET 4 A 8 HIS A 3 VAL A 12 -1 N THR A 10 O ILE A 23 SHEET 5 A 8 THR A 94 VAL A 103 -1 O ARG A 97 N HIS A 9 SHEET 6 A 8 LEU A 109 TYR A 118 -1 O ALA A 117 N GLN A 96 SHEET 7 A 8 CYS A 121 LEU A 126 -1 O LEU A 126 N GLU A 114 SHEET 8 A 8 TRP A 133 ALA A 135 -1 O THR A 134 N ALA A 125 SHEET 1 B 4 LYS A 186 SER A 193 0 SHEET 2 B 4 LYS A 198 PHE A 208 -1 O TRP A 204 N HIS A 188 SHEET 3 B 4 PHE A 241 PRO A 250 -1 O ALA A 245 N CYS A 203 SHEET 4 B 4 GLU A 229 LEU A 230 -1 N GLU A 229 O SER A 246 SHEET 1 C 4 LYS A 186 SER A 193 0 SHEET 2 C 4 LYS A 198 PHE A 208 -1 O TRP A 204 N HIS A 188 SHEET 3 C 4 PHE A 241 PRO A 250 -1 O ALA A 245 N CYS A 203 SHEET 4 C 4 ARG A 234 PRO A 235 -1 N ARG A 234 O GLN A 242 SHEET 1 D 3 THR A 214 LEU A 219 0 SHEET 2 D 3 TYR A 257 TYR A 262 -1 O HIS A 260 N THR A 216 SHEET 3 D 3 LEU A 270 LEU A 272 -1 O LEU A 272 N CYS A 259 SHEET 1 E 4 GLN B 6 SER B 11 0 SHEET 2 E 4 ASN B 21 PHE B 30 -1 O TYR B 26 N GLN B 8 SHEET 3 E 4 PHE B 62 PHE B 70 -1 O ALA B 66 N CYS B 25 SHEET 4 E 4 GLU B 50 MET B 51 -1 N GLU B 50 O HIS B 67 SHEET 1 F 4 GLN B 6 SER B 11 0 SHEET 2 F 4 ASN B 21 PHE B 30 -1 O TYR B 26 N GLN B 8 SHEET 3 F 4 PHE B 62 PHE B 70 -1 O ALA B 66 N CYS B 25 SHEET 4 F 4 SER B 55 PHE B 56 -1 N SER B 55 O TYR B 63 SHEET 1 G 4 LYS B 44 LYS B 45 0 SHEET 2 G 4 GLU B 36 LYS B 41 -1 N LYS B 41 O LYS B 44 SHEET 3 G 4 TYR B 78 LYS B 83 -1 O LYS B 83 N GLU B 36 SHEET 4 G 4 LYS B 91 TYR B 94 -1 O VAL B 93 N CYS B 80

SSBOND 1 CYS A 101 CYS A 164 1555 1555 2.10 SSBOND 2 CYS A 203 CYS A 259 1555 1555 2.03 SSBOND 3 CYS B 25 CYS B 80 1555 1555 2.03

CISPEP 1 TYR A 209 PRO A 210 0 -2.08 CISPEP 2 HIS B 31 PRO B 32 0 8.07

SITE 1 AC1 4 GLN A 72 THR A 225 GLN A 226 HOH A1037 SITE 1 AC2 4 PRO A 20 ARG A 75 ASN A 220 HOH A1066

CRYST1 111.758 111.758 109.417 90.00 90.00 120.00 P 32 2 1 6

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 0.008948 0.005166 0.000000 0.00000

SCALE2 0.000000 0.010332 0.000000 0.00000

SCALE3 0.000000 0.000000 0.009139 0.00000