2XKX - Header Asymmetric Unit

HEADER STRUCTURAL PROTEIN 15-JUL-10 2XKX

TITLE SINGLE PARTICLE ANALYSIS OF PSD-95 IN NEGATIVE STAIN

COMPND MOL_ID: 1; COMPND 2 MOLECULE: DISKS LARGE HOMOLOG 4; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: POSTSYNAPTIC DENSITY PROTEIN 95, PSD-95, COMPND 5 SYNAPSE-ASSOCIATED PROTEIN 90, SAP-90, SAP90; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS; SOURCE 3 ORGANISM_COMMON: NORWAY RAT; SOURCE 4 ORGANISM_TAXID: 10116; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PGEX-6P

KEYWDS STRUCTURAL PROTEIN, SCAFFOLD PROTEIN, MEMBRANE ASSOCIATED GUANYLATE KEYWDS 2 KINASE

EXPDTA ELECTRON MICROSCOPY; SOLUTION SCATTERING

MDLTYP CA ATOMS ONLY, CHAIN A, B

AUTHOR S.FOMINA,T.D.HOWARD,O.K.SLEATOR,M.GOLOVANOVA,L.O'RYAN,M.L.LEYLAND, AUTHOR 2 J.G.GROSSMANN,R.F.COLLINS,S.M.PRINCE

REVDAT 2 10-AUG-11 2XKX 1 JRNL REVDAT 1 20-JUL-11 2XKX 0

JRNL AUTH S.FOMINA,T.D.HOWARD,O.K.SLEATOR,M.GOLOVANOVA,L.O'RYAN, JRNL AUTH 2 M.L.LEYLAND,J.G.GROSSMANN,R.F.COLLINS,S.M.PRINCE JRNL TITL SELF-DIRECTED ASSEMBLY AND CLUSTERING OF THE CYTOPLASMIC JRNL TITL 2 DOMAINS OF INWARDLY RECTIFYING KIR2.1 POTASSIUM CHANNELS ON JRNL TITL 3 ASSOCIATION WITH PSD-95 JRNL REF BIOCHIM.BIOPHYS.ACTA V.1808 2374 2011 JRNL REFN ISSN 0006-3002 JRNL PMID 21756874 JRNL DOI 10.1016/J.BBAMEM.2011.06.021

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH J.LONG,H.TOCHIO,P.WANG,J.FAN,C.SALA,M.NIETHAMMER,M.SHENG, REMARK 1 AUTH 2 M.ZHANG REMARK 1 TITL SUPRAMODULAR STRUCTURE AND SYNERGISTIC TARGET BINDING OF REMARK 1 TITL 2 THE N-TERMINAL TANDEM PDZ DOMAINS OF PSD-95. REMARK 1 REF J.MOL.BIOL. V. 327 203 2003 REMARK 1 REFN ISSN 0022-2836 REMARK 1 PMID 12614619 REMARK 1 REFERENCE 2 REMARK 1 AUTH H.TOCHIO,F.HUNG,M.LI,D.S.BREDT,M.ZHANG REMARK 1 TITL SOLUTION STRUCTURE AND BACKBONE DYNAMICS OF THE SECOND PDZ REMARK 1 TITL 2 DOMAIN OF POSTSYNAPTIC DENSITY-95. REMARK 1 REF J.MOL.BIOL. V. 295 225 2000 REMARK 1 REFN ISSN 0022-2836 REMARK 1 PMID 10623522 REMARK 1 DOI 10.1006/JMBI.1999.3350 REMARK 1 REFERENCE 3 REMARK 1 AUTH D.SARO,Z.WAWRZAK,P.MARTIN,J.VICKREY,A.PAREDES,L.KOVARI, REMARK 1 AUTH 2 M.SPALLER REMARK 1 TITL STRUCTURE OF THE THIRD PDZ DOMAIN OF PSD-95 PROTEIN REMARK 1 TITL 2 COMPLEXED WITH KKETWV PEPTIDE LIGAND REMARK 1 REF TO BE PUBLISHED REMARK 1 REFN REMARK 1 REFERENCE 4 REMARK 1 AUTH A.W.MCGEE,S.R.DAKOJI,O.OLSEN,D.S.BREDT,W.A.LIM,K.E.PREHODA REMARK 1 TITL STRUCTURE OF THE SH3-GUANYLATE KINASE MODULE FROM PSD-95 REMARK 1 TITL 2 SUGGESTS A MECHANISM FOR REGULATED ASSEMBLY OF MAGUK REMARK 1 TITL 3 SCAFFOLDING PROTEINS. REMARK 1 REF MOL.CELL V. 8 1291 2001 REMARK 1 REFN ISSN 1097-2765 REMARK 1 PMID 11779504

REMARK 2 REMARK 2 RESOLUTION. 22.9 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : EMAN REMARK 3 RECONSTRUCTION SCHEMA : NULL REMARK 3 REMARK 3 EM MAP-MODEL FITTING AND REFINEMENT REMARK 3 PDB ENTRY : 1IU0,1QLC,1TP5,1KJW REMARK 3 REFINEMENT SPACE : REAL REMARK 3 REFINEMENT PROTOCOL : DOCKED USING CHIMERA REMARK 3 REFINEMENT TARGET : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE : NULL REMARK 3 REMARK 3 FITTING PROCEDURE : A MAP WAS GENERATED FROM THE SAXS MODEL REMARK 3 COORDINATES AT A RESOLUTION MATCHING THE EXPERIMENTAL MAP. T REMARK 3 HIS CALCULATED MAP WAS FITTED INTO THE EXPERIMENTAL MAP BY REMARK 3 MAXIMIZING THE CROSS-CORRELATION WITH THE EXPERIMENTAL MAP. REMARK 3 THE COORDINATES WERE THEN REPLACED IN THE CALCULATED MAP TO REMARK 3 GENERATE THE FINAL ENTRY. REMARK 3 REMARK 3 EM IMAGE RECONSTRUCTION STATISTICS REMARK 3 NOMINAL PIXEL SIZE (ANGSTROMS) : 3.667 REMARK 3 ACTUAL PIXEL SIZE (ANGSTROMS) : 3.667 REMARK 3 EFFECTIVE RESOLUTION (ANGSTROMS) : 22.9 REMARK 3 NUMBER OF PARTICLES : 7854 REMARK 3 CTF CORRECTION METHOD : PARAMETERS DETERMINED REMARK 3 USING SCATTERING CURVE REMARK 3 REMARK 3 EM RECONSTRUCTION MAGNIFICATION CALIBRATION: NULL REMARK 3 REMARK 3 OTHER DETAILS: THE COORDINATES DEPOSITED ARE FROM A REMARK 3 COMBINED SAXS/EM STUDY. THE DOMAINS IN THE PROTEINS REMARK 3 (HIGH RESOLUTION STRUCTURES FROM THE PDB) ARE POSITIONED REMARK 3 RELATIVE TO ONE ANOTHER USING A SAXS CURVE, THIS COMPOSITE REMARK 3 STRUCTURE IS THEN FITTED INTO AN EM MAP. REMARK 3 DOMAINS PROVIDED BY X-RAY, NMR POSITIONED BY BUNCH ( REMARK 3 PETOUKHOV, M. V. & SVERGUN, D. I. (2005). GLOBAL RIGID REMARK 3 BODY MODELING OF MACROMOLECULAR COMPLEXES AGAINST SMALL- REMARK 3 ANGLE SCATTERING DATA. BIOPHYS J 89, 1237-50.) REFINEMENT REMARK 3 SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-1761. REMARK 3 (DEPOSITION ID: 7384).

REMARK 4 REMARK 4 2XKX COMPLIES WITH FORMAT V. 3.30, 13-JUL-11

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 04-MAR-11. REMARK 100 THE PDBE ID CODE IS EBI-44632.

REMARK 245 REMARK 245 EXPERIMENTAL DETAILS REMARK 245 RECONSTRUCTION METHOD : SINGLE PARTICLE REMARK 245 SPECIMEN TYPE : NEGATIVE STAIN REMARK 245 REMARK 245 ELECTRON MICROSCOPE SAMPLE REMARK 245 SAMPLE TYPE : PARTICLE REMARK 245 PARTICLE TYPE : NULL REMARK 245 NAME OF SAMPLE : RAT PSD-95 REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : 1.0 REMARK 245 SAMPLE SUPPORT DETAILS : CARBON REMARK 245 SAMPLE VITRIFICATION DETAILS : NULL REMARK 245 SAMPLE BUFFER : 20MM TRIS/HCL, 5MM DTT, REMARK 245 1MM EDTA, REMARK 245 PH : 7.5 REMARK 245 SAMPLE DETAILS : NULL REMARK 245 REMARK 245 DATA ACQUISITION REMARK 245 DATE OF EXPERIMENT : NULL REMARK 245 NUMBER OF MICROGRAPHS-IMAGES : 2 REMARK 245 TEMPERATURE (KELVIN) : NULL REMARK 245 MICROSCOPE MODEL : OTHER REMARK 245 DETECTOR TYPE : FILM REMARK 245 MINIMUM DEFOCUS (NM) : 900 REMARK 245 MAXIMUM DEFOCUS (NM) : 2250 REMARK 245 MINIMUM TILT ANGLE (DEGREES) : 0 REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : 0.1 REMARK 245 NOMINAL CS : 3.6 REMARK 245 IMAGING MODE : BRIGHT FIELD REMARK 245 ELECTRON DOSE (ELECTRONS NM**-2) : NULL REMARK 245 ILLUMINATION MODE : FLOOD BEAM REMARK 245 NOMINAL MAGNIFICATION : 43000 REMARK 245 CALIBRATED MAGNIFICATION : NULL REMARK 245 SOURCE : TUNGSTEN HAIRPIN REMARK 245 ACCELERATION VOLTAGE (KV) : 100 REMARK 245 IMAGING DETAILS : LOW DOSE

REMARK 247 REMARK 247 ELECTRON MICROSCOPY REMARK 247 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM ELECTRON REMARK 247 MICROSCOPY DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE REMARK 247 THAT CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES REMARK 247 ON THESE RECORDS ARE MEANINGLESS EXCEPT FOR THE CALCULATION REMARK 247 OF THE STRUCTURE FACTORS.

REMARK 265 REMARK 265 EXPERIMENTAL DETAILS REMARK 265 REMARK 265 EXPERIMENT TYPE : SMALL ANGLE X-RAY SCATTERING REMARK 265 DATA ACQUISITION REMARK 265 RADIATION/NEUTRON SOURCE : SRS REMARK 265 SYNCHROTRON (Y/N) : Y REMARK 265 BEAMLINE TYPE : STATION 2.1 REMARK 265 BEAMLINE INSTRUMENT : NULL REMARK 265 DETECTOR TYPE : MULTIWIRE 2-D REMARK 265 DETECTOR MANUFACTURER DETAILS : NULL REMARK 265 TEMPERATURE (KELVIN) : 277 REMARK 265 PH : 7.5 REMARK 265 NUMBER OF TIME FRAMES USED : 64 REMARK 265 PROTEIN CONCENTRATION RANGE (MG/ML) : 1-8 REMARK 265 SAMPLE BUFFER : 20MM TRIS/HCL, 5MM DTT, REMARK 265 1MM EDTA, PH 7.5, REMARK 265 50MM NACL REMARK 265 DATA REDUCTION SOFTWARE : OTOKO/GNOM REMARK 265 GUINIER MEAN RADIUS OF GYRATION (NM) : 4.36 REMARK 265 SIGMA MEAN RADIUS OF GYRATION : NULL REMARK 265 R(XS-1) MEAN CROSS SECTIONAL RADII (NM) : NULL REMARK 265 R(XS-1) SIGMA MEAN CROSS SECTIONAL RADII : NULL REMARK 265 R(XS-2) MEAN CROSS SECTIONAL RADII (NM) : NULL REMARK 265 R(XS-2) SIGMA MEAN CROSS SECTIONAL RADII : NULL REMARK 265 P(R) PROTEIN LENGTH (NM) : 14.0 REMARK 265 REMARK 265 DATA ANALYSIS AND MODEL FITTING: REMARK 265 METHOD USED TO DETERMINE THE STRUCTURE: RIGID BODY MODELLING REMARK 265 SOFTWARE USED : SASREF7/BUNCH8 REMARK 265 SOFTWARE AUTHORS : PETOUKHOV, M. V. & SVERGUN, D. I. REMARK 265 STARTING MODEL : PROGRAM PRE-BUNCH 1IU0/1QLC/1TP5/1KJW + REMARK 265 SEQUENCE DATA REMARK 265 REMARK 265 CONFORMERS, NUMBER CALCULATED : 20 REMARK 265 CONFORMERS, NUMBER SUBMITTED : 2 REMARK 265 CONFORMERS, SELECTION CRITERIA : TWO MAJOR CONFORMERS WERE PRESENT REMARK 265 IN THE POOL OF REFINED SAXS MODELS. REMARK 265 CHAIN A REPRESENTS THE BEST REMARK 265 AGREEMENT WITH THE EXPERIMENTAL REMARK 265 SAXS DATA (CHI=3.3). REMARK 265 CHAIN B IS REPRESENTATIVE OF THE REMARK 265 SECOND CONFORMATION (CHI=3.8). REMARK 265 REMARK 265 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL REMARK 265 REMARK 265 OTHER DETAILS: NUMBER OF TIME FRAMES USED 24 (60S, 4.25M CAMERA), REMARK 265 40( 60S, 1M CAMERA). PROTEIN CONCENTRATION REMARK 265 1 MG/ML (4.25M CAMERA) 8 MG/ML (1M CAMERA)

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,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 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA 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 400 REMARK 400 COMPOUND REMARK 400 ENGINEERED RESIDUE IN CHAIN A, THR 9 TO ALA REMARK 400 ENGINEERED RESIDUE IN CHAIN A, GLU 23 TO LYS REMARK 400 ENGINEERED RESIDUE IN CHAIN A, GLN 594 TO ARG

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 B 501 REMARK 465 LYS B 502 REMARK 465 ASP B 503

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 CA GLU A 57 CA ARG A 148 1.94 REMARK 500 CA HIS A 179 CA ALA B 211 2.04 REMARK 500 CA PRO A 181 CA ALA B 228 1.98 REMARK 500 CA SER A 214 CA ILE B 76 1.87 REMARK 500 CA VAL A 226 CA ARG B 147 2.19 REMARK 500 CA ARG A 309 CA LEU B 350 2.16 REMARK 500 CA ILE A 311 CA TYR B 389 1.98 REMARK 500 CA HIS A 314 CA SER B 287 2.11 REMARK 500 CA LEU A 320 CA GLU B 393 2.13 REMARK 500 CA ILE A 335 CA VAL B 325 1.99 REMARK 500 CA ILE A 386 CA ARG B 351 1.02 REMARK 500 CA GLU A 393 CA ASN B 410 1.07 REMARK 500 CA ARG A 396 CA LEU B 408 1.98 REMARK 500 CA GLU A 406 CA GLU B 328 0.77 REMARK 500 CA LEU A 420 CA ILE B 386 0.74 REMARK 500 CA ARG A 426 CA VAL A 459 2.10 REMARK 500 CA PHE A 434 CA LEU B 433 2.18 REMARK 500 CA ARG A 452 CA ALA B 432 2.15 REMARK 500 CA VAL A 456 CA VAL B 523 2.01 REMARK 500 CA ASP A 461 CA LEU B 346 2.07 REMARK 500 CA ARG A 493 CA TRP B 496 2.20 REMARK 500 CA ILE A 536 CA ILE B 535 2.17 REMARK 500 CA ARG A 543 CA ASP B 547 1.96 REMARK 500 CA ASP A 546 CA LEU B 549 0.68 REMARK 500 CA ASP A 547 CA PHE B 552 2.14 REMARK 500 CA PRO A 561 CA TYR B 577 2.19 REMARK 500 CA LYS A 567 CA GLU B 569 1.97 REMARK 500 CA MET A 586 CA THR B 564 2.01 REMARK 500 CA ALA A 592 CA GLU B 587 1.08 REMARK 500 CA THR A 608 CA PRO B 561 2.03 REMARK 500 CA VAL A 610 CA SER B 609 2.08 REMARK 500 CA ARG A 614 CA GLN B 611 0.73 REMARK 500 CA GLY A 620 CA GLU B 618 2.17 REMARK 500 CA HIS A 622 CA ALA B 617 1.08 REMARK 500 CA SER A 628 CA VAL B 627 1.87 REMARK 500 CA VAL A 632 CA ALA B 631 0.75 REMARK 500 CA HIS A 641 CA LEU B 635 1.91 REMARK 500 CA ILE A 643 CA PRO B 642 0.75 REMARK 500 CA ARG A 648 CA ILE B 647 2.11 REMARK 500 CA ARG A 650 CA GLU B 690 2.01 REMARK 500 CA ALA A 667 CA ASN B 659 1.01 REMARK 500 CA ALA A 674 CA GLY B 538 2.03 REMARK 500 CA ALA A 687 CA SER B 686 0.77 REMARK 500 CA TYR A 698 CA LYS B 702 1.10 REMARK 500 CA LYS A 700 CA VAL B 704 1.87 REMARK 500 CA VAL A 701 CA ILE B 705 0.85 REMARK 500 CA GLU A 706 CA GLY B 710 2.03 REMARK 500 CA ASP A 707 CA ILE B 713 2.18 REMARK 500 CA LEU A 721 CA VAL B 383 2.14 REMARK 500 REMARK 500 THIS ENTRY HAS 52 CLOSE CONTACTS REMARK 500 REMARK 500 REMARK: NULL

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1TQ3 RELATED DB: PDB REMARK 900 HIGHER RESOLUTION CRYSTAL STRUCTURE OF THE THIRD PDZ REMARK 900 DOMAINOF POST SYNAPTIC PSD-95 PROTEIN REMARK 900 RELATED ID: 1RGR RELATED DB: PDB REMARK 900 CYCLIC PEPTIDES TARGETING PDZ DOMAINS OF PSD-95: REMARK 900 STRUCTURALBASIS FOR ENHANCED AFFINITY AND ENZYMATIC REMARK 900 STABILITY REMARK 900 RELATED ID: 1IU2 RELATED DB: PDB REMARK 900 THE FIRST PDZ DOMAIN OF PSD-95 REMARK 900 RELATED ID: 1JXM RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE GMP BOUND SH3-HOOK-GK REMARK 900 FRAGMENT OFPSD-95 REMARK 900 RELATED ID: 1KJW RELATED DB: PDB REMARK 900 SH3-GUANYLATE KINASE MODULE FROM PSD-95 REMARK 900 RELATED ID: 1TP3 RELATED DB: PDB REMARK 900 PDZ3 DOMAIN OF PSD-95 PROTEIN COMPLEXED WITH AKETPV REMARK 900 PEPTIDELIGAND REMARK 900 RELATED ID: 1BE9 RELATED DB: PDB REMARK 900 THE THIRD PDZ DOMAIN FROM THE SYNAPTIC PROTEIN PSD- REMARK 900 95 INCOMPLEX WITH A C-TERMINAL PEPTIDE DERIVED FROM REMARK 900 CRIPT. REMARK 900 RELATED ID: 1BFE RELATED DB: PDB REMARK 900 THE THIRD PDZ DOMAIN FROM THE SYNAPTIC PROTEIN PSD- REMARK 900 95 REMARK 900 RELATED ID: 1QLC RELATED DB: PDB REMARK 900 SOLUTION STRUCTURE OF THE SECOND PDZ DOMAIN OF REMARK 900 POSTSYNAPTIC DENSITY-95 REMARK 900 RELATED ID: 1IU0 RELATED DB: PDB REMARK 900 THE FIRST PDZ DOMAIN OF PSD-95 REMARK 900 RELATED ID: 1JXO RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE SH3-HOOK-GK FRAGMENT OF PSD REMARK 900 -95 REMARK 900 RELATED ID: 1TP5 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF PDZ3 DOMAIN OF PSD-95 REMARK 900 PROTEINCOMPLEXED WITH A PEPTIDE LIGAND KKETWV REMARK 900 RELATED ID: 2XKY RELATED DB: PDB REMARK 900 SINGLE PARTICLE ANALYSIS OF KIR2.1NC_4 IN NEGATIVE REMARK 900 STAIN REMARK 900 RELATED ID: EMD-1761 RELATED DB: EMDB REMARK 900 SINGLE PARTICLE ANALYSIS OF PSD-95 IN NEGATIVE STAIN

DBREF 2XKX A 1 721 UNP P31016 DLG4_RAT 1 724 DBREF 2XKX B 1 721 UNP P31016 DLG4_RAT 1 724

SEQADV 2XKX ALA A 9 UNP P31016 THR 9 ENGINEERED MUTATION SEQADV 2XKX LYS A 23 UNP P31016 GLU 23 ENGINEERED MUTATION SEQADV 2XKX A UNP P31016 GLU 51 DELETION SEQADV 2XKX A UNP P31016 LEU 52 DELETION SEQADV 2XKX A UNP P31016 GLN 53 DELETION SEQADV 2XKX ARG A 591 UNP P31016 GLN 594 ENGINEERED MUTATION SEQADV 2XKX ALA B 9 UNP P31016 THR 9 ENGINEERED MUTATION SEQADV 2XKX LYS B 23 UNP P31016 GLU 23 ENGINEERED MUTATION SEQADV 2XKX B UNP P31016 GLU 51 DELETION SEQADV 2XKX B UNP P31016 LEU 52 DELETION SEQADV 2XKX B UNP P31016 GLN 53 DELETION SEQADV 2XKX ARG B 591 UNP P31016 GLN 594 ENGINEERED MUTATION

SEQRES 1 A 721 MET ASP CYS LEU CYS ILE VAL THR ALA LYS LYS TYR ARG SEQRES 2 A 721 TYR GLN ASP GLU ASP THR PRO PRO LEU LYS HIS SER PRO SEQRES 3 A 721 ALA HIS LEU PRO ASN GLN ALA ASN SER PRO PRO VAL ILE SEQRES 4 A 721 VAL ASN THR ASP THR LEU GLU ALA PRO GLY TYR VAL ASN SEQRES 5 A 721 GLY THR GLU GLY GLU MET GLU TYR GLU GLU ILE THR LEU SEQRES 6 A 721 GLU ARG GLY ASN SER GLY LEU GLY PHE SER ILE ALA GLY SEQRES 7 A 721 GLY THR ASP ASN PRO HIS ILE GLY ASP ASP PRO SER ILE SEQRES 8 A 721 PHE ILE THR LYS ILE ILE PRO GLY GLY ALA ALA ALA GLN SEQRES 9 A 721 ASP GLY ARG LEU ARG VAL ASN ASP SER ILE LEU PHE VAL SEQRES 10 A 721 ASN GLU VAL ASP VAL ARG GLU VAL THR HIS SER ALA ALA SEQRES 11 A 721 VAL GLU ALA LEU LYS GLU ALA GLY SER ILE VAL ARG LEU SEQRES 12 A 721 TYR VAL MET ARG ARG LYS PRO PRO ALA GLU LYS VAL MET SEQRES 13 A 721 GLU ILE LYS LEU ILE LYS GLY PRO LYS GLY LEU GLY PHE SEQRES 14 A 721 SER ILE ALA GLY GLY VAL GLY ASN GLN HIS ILE PRO GLY SEQRES 15 A 721 ASP ASN SER ILE TYR VAL THR LYS ILE ILE GLU GLY GLY SEQRES 16 A 721 ALA ALA HIS LYS ASP GLY ARG LEU GLN ILE GLY ASP LYS SEQRES 17 A 721 ILE LEU ALA VAL ASN SER VAL GLY LEU GLU ASP VAL MET SEQRES 18 A 721 HIS GLU ASP ALA VAL ALA ALA LEU LYS ASN THR TYR ASP SEQRES 19 A 721 VAL VAL TYR LEU LYS VAL ALA LYS PRO SER ASN ALA TYR SEQRES 20 A 721 LEU SER ASP SER TYR ALA PRO PRO ASP ILE THR THR SER SEQRES 21 A 721 TYR SER GLN HIS LEU ASP ASN GLU ILE SER HIS SER SER SEQRES 22 A 721 TYR LEU GLY THR ASP TYR PRO THR ALA MET THR PRO THR SEQRES 23 A 721 SER PRO ARG ARG TYR SER PRO VAL ALA LYS ASP LEU LEU SEQRES 24 A 721 GLY GLU GLU ASP ILE PRO ARG GLU PRO ARG ARG ILE VAL SEQRES 25 A 721 ILE HIS ARG GLY SER THR GLY LEU GLY PHE ASN ILE VAL SEQRES 26 A 721 GLY GLY GLU ASP GLY GLU GLY ILE PHE ILE SER PHE ILE SEQRES 27 A 721 LEU ALA GLY GLY PRO ALA ASP LEU SER GLY GLU LEU ARG SEQRES 28 A 721 LYS GLY ASP GLN ILE LEU SER VAL ASN GLY VAL ASP LEU SEQRES 29 A 721 ARG ASN ALA SER HIS GLU GLN ALA ALA ILE ALA LEU LYS SEQRES 30 A 721 ASN ALA GLY GLN THR VAL THR ILE ILE ALA GLN TYR LYS SEQRES 31 A 721 PRO GLU GLU TYR SER ARG PHE GLU ALA LYS ILE HIS ASP SEQRES 32 A 721 LEU ARG GLU GLN LEU MET ASN SER SER LEU GLY SER GLY SEQRES 33 A 721 THR ALA SER LEU ARG SER ASN PRO LYS ARG GLY PHE TYR SEQRES 34 A 721 ILE ARG ALA LEU PHE ASP TYR ASP LYS THR LYS ASP CYS SEQRES 35 A 721 GLY PHE LEU SER GLN ALA LEU SER PHE ARG PHE GLY ASP SEQRES 36 A 721 VAL LEU HIS VAL ILE ASP ALA GLY ASP GLU GLU TRP TRP SEQRES 37 A 721 GLN ALA ARG ARG VAL HIS SER ASP SER GLU THR ASP ASP SEQRES 38 A 721 ILE GLY PHE ILE PRO SER LYS ARG ARG VAL GLU ARG ARG SEQRES 39 A 721 GLU TRP SER ARG LEU LYS ALA LYS ASP TRP GLY SER SER SEQRES 40 A 721 SER GLY SER GLN GLY ARG GLU ASP SER VAL LEU SER TYR SEQRES 41 A 721 GLU THR VAL THR GLN MET GLU VAL HIS TYR ALA ARG PRO SEQRES 42 A 721 ILE ILE ILE LEU GLY PRO THR LYS ASP ARG ALA ASN ASP SEQRES 43 A 721 ASP LEU LEU SER GLU PHE PRO ASP LYS PHE GLY SER CYS SEQRES 44 A 721 VAL PRO HIS THR THR ARG PRO LYS ARG GLU TYR GLU ILE SEQRES 45 A 721 ASP GLY ARG ASP TYR HIS PHE VAL SER SER ARG GLU LYS SEQRES 46 A 721 MET GLU LYS ASP ILE ARG ALA HIS LYS PHE ILE GLU ALA SEQRES 47 A 721 GLY GLN TYR ASN SER HIS LEU TYR GLY THR SER VAL GLN SEQRES 48 A 721 SER VAL ARG GLU VAL ALA GLU GLN GLY LYS HIS CYS ILE SEQRES 49 A 721 LEU ASP VAL SER ALA ASN ALA VAL ARG ARG LEU GLN ALA SEQRES 50 A 721 ALA HIS LEU HIS PRO ILE ALA ILE PHE ILE ARG PRO ARG SEQRES 51 A 721 SER LEU GLU ASN VAL LEU GLU ILE ASN LYS ARG ILE THR SEQRES 52 A 721 GLU GLU GLN ALA ARG LYS ALA PHE ASP ARG ALA THR LYS SEQRES 53 A 721 LEU GLU GLN GLU PHE THR GLU CYS PHE SER ALA ILE VAL SEQRES 54 A 721 GLU GLY ASP SER PHE GLU GLU ILE TYR HIS LYS VAL LYS SEQRES 55 A 721 ARG VAL ILE GLU ASP LEU SER GLY PRO TYR ILE TRP VAL SEQRES 56 A 721 PRO ALA ARG GLU ARG LEU SEQRES 1 B 721 MET ASP CYS LEU CYS ILE VAL THR ALA LYS LYS TYR ARG SEQRES 2 B 721 TYR GLN ASP GLU ASP THR PRO PRO LEU LYS HIS SER PRO SEQRES 3 B 721 ALA HIS LEU PRO ASN GLN ALA ASN SER PRO PRO VAL ILE SEQRES 4 B 721 VAL ASN THR ASP THR LEU GLU ALA PRO GLY TYR VAL ASN SEQRES 5 B 721 GLY THR GLU GLY GLU MET GLU TYR GLU GLU ILE THR LEU SEQRES 6 B 721 GLU ARG GLY ASN SER GLY LEU GLY PHE SER ILE ALA GLY SEQRES 7 B 721 GLY THR ASP ASN PRO HIS ILE GLY ASP ASP PRO SER ILE SEQRES 8 B 721 PHE ILE THR LYS ILE ILE PRO GLY GLY ALA ALA ALA GLN SEQRES 9 B 721 ASP GLY ARG LEU ARG VAL ASN ASP SER ILE LEU PHE VAL SEQRES 10 B 721 ASN GLU VAL ASP VAL ARG GLU VAL THR HIS SER ALA ALA SEQRES 11 B 721 VAL GLU ALA LEU LYS GLU ALA GLY SER ILE VAL ARG LEU SEQRES 12 B 721 TYR VAL MET ARG ARG LYS PRO PRO ALA GLU LYS VAL MET SEQRES 13 B 721 GLU ILE LYS LEU ILE LYS GLY PRO LYS GLY LEU GLY PHE SEQRES 14 B 721 SER ILE ALA GLY GLY VAL GLY ASN GLN HIS ILE PRO GLY SEQRES 15 B 721 ASP ASN SER ILE TYR VAL THR LYS ILE ILE GLU GLY GLY SEQRES 16 B 721 ALA ALA HIS LYS ASP GLY ARG LEU GLN ILE GLY ASP LYS SEQRES 17 B 721 ILE LEU ALA VAL ASN SER VAL GLY LEU GLU ASP VAL MET SEQRES 18 B 721 HIS GLU ASP ALA VAL ALA ALA LEU LYS ASN THR TYR ASP SEQRES 19 B 721 VAL VAL TYR LEU LYS VAL ALA LYS PRO SER ASN ALA TYR SEQRES 20 B 721 LEU SER ASP SER TYR ALA PRO PRO ASP ILE THR THR SER SEQRES 21 B 721 TYR SER GLN HIS LEU ASP ASN GLU ILE SER HIS SER SER SEQRES 22 B 721 TYR LEU GLY THR ASP TYR PRO THR ALA MET THR PRO THR SEQRES 23 B 721 SER PRO ARG ARG TYR SER PRO VAL ALA LYS ASP LEU LEU SEQRES 24 B 721 GLY GLU GLU ASP ILE PRO ARG GLU PRO ARG ARG ILE VAL SEQRES 25 B 721 ILE HIS ARG GLY SER THR GLY LEU GLY PHE ASN ILE VAL SEQRES 26 B 721 GLY GLY GLU ASP GLY GLU GLY ILE PHE ILE SER PHE ILE SEQRES 27 B 721 LEU ALA GLY GLY PRO ALA ASP LEU SER GLY GLU LEU ARG SEQRES 28 B 721 LYS GLY ASP GLN ILE LEU SER VAL ASN GLY VAL ASP LEU SEQRES 29 B 721 ARG ASN ALA SER HIS GLU GLN ALA ALA ILE ALA LEU LYS SEQRES 30 B 721 ASN ALA GLY GLN THR VAL THR ILE ILE ALA GLN TYR LYS SEQRES 31 B 721 PRO GLU GLU TYR SER ARG PHE GLU ALA LYS ILE HIS ASP SEQRES 32 B 721 LEU ARG GLU GLN LEU MET ASN SER SER LEU GLY SER GLY SEQRES 33 B 721 THR ALA SER LEU ARG SER ASN PRO LYS ARG GLY PHE TYR SEQRES 34 B 721 ILE ARG ALA LEU PHE ASP TYR ASP LYS THR LYS ASP CYS SEQRES 35 B 721 GLY PHE LEU SER GLN ALA LEU SER PHE ARG PHE GLY ASP SEQRES 36 B 721 VAL LEU HIS VAL ILE ASP ALA GLY ASP GLU GLU TRP TRP SEQRES 37 B 721 GLN ALA ARG ARG VAL HIS SER ASP SER GLU THR ASP ASP SEQRES 38 B 721 ILE GLY PHE ILE PRO SER LYS ARG ARG VAL GLU ARG ARG SEQRES 39 B 721 GLU TRP SER ARG LEU LYS ALA LYS ASP TRP GLY SER SER SEQRES 40 B 721 SER GLY SER GLN GLY ARG GLU ASP SER VAL LEU SER TYR SEQRES 41 B 721 GLU THR VAL THR GLN MET GLU VAL HIS TYR ALA ARG PRO SEQRES 42 B 721 ILE ILE ILE LEU GLY PRO THR LYS ASP ARG ALA ASN ASP SEQRES 43 B 721 ASP LEU LEU SER GLU PHE PRO ASP LYS PHE GLY SER CYS SEQRES 44 B 721 VAL PRO HIS THR THR ARG PRO LYS ARG GLU TYR GLU ILE SEQRES 45 B 721 ASP GLY ARG ASP TYR HIS PHE VAL SER SER ARG GLU LYS SEQRES 46 B 721 MET GLU LYS ASP ILE ARG ALA HIS LYS PHE ILE GLU ALA SEQRES 47 B 721 GLY GLN TYR ASN SER HIS LEU TYR GLY THR SER VAL GLN SEQRES 48 B 721 SER VAL ARG GLU VAL ALA GLU GLN GLY LYS HIS CYS ILE SEQRES 49 B 721 LEU ASP VAL SER ALA ASN ALA VAL ARG ARG LEU GLN ALA SEQRES 50 B 721 ALA HIS LEU HIS PRO ILE ALA ILE PHE ILE ARG PRO ARG SEQRES 51 B 721 SER LEU GLU ASN VAL LEU GLU ILE ASN LYS ARG ILE THR SEQRES 52 B 721 GLU GLU GLN ALA ARG LYS ALA PHE ASP ARG ALA THR LYS SEQRES 53 B 721 LEU GLU GLN GLU PHE THR GLU CYS PHE SER ALA ILE VAL SEQRES 54 B 721 GLU GLY ASP SER PHE GLU GLU ILE TYR HIS LYS VAL LYS SEQRES 55 B 721 ARG VAL ILE GLU ASP LEU SER GLY PRO TYR ILE TRP VAL SEQRES 56 B 721 PRO ALA ARG GLU ARG LEU

CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 2

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 1.000000 0.000000 0.000000 0.00000

SCALE2 0.000000 1.000000 0.000000 0.00000

SCALE3 0.000000 0.000000 1.000000 0.00000