HEADER METAL BINDING PROTEIN 08-JUL-09 2KLT TITLE SECOND CA2+ BINDING DOMAIN OF NCX1.3 COMPND MOL_ID: 1; COMPND 2 MOLECULE: SODIUM/CALCIUM EXCHANGER 1; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: SECOND CA2+ BINDING DOMAIN; COMPND 5 SYNONYM: NA(+)/CA(2+)-EXCHANGE PROTEIN 1; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: CANIS FAMILIARIS; SOURCE 3 ORGANISM_COMMON: DOG; SOURCE 4 ORGANISM_TAXID: 9615; SOURCE 5 GENE: SLC8A1; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL-21; SOURCE 9 EXPRESSION_SYSTEM_VARIANT: DE3; SOURCE 10 EXPRESSION_SYSTEM_VECTOR: PET23B KEYWDS SODIUM CALCIUM EXCHANGER, ELECTROSTATIC SWITCH, CA2+ SENSOR, CA2+ KEYWDS 2 REGULATION, METAL BINDING PROTEIN EXPDTA SOLUTION NMR NUMMDL 20 AUTHOR M.HILGE,J.AELEN,A.FOARCE,A.PERRAKIS,G.W.VUISTER REVDAT 4 22-MAY-24 2KLT 1 REMARK REVDAT 3 16-MAR-22 2KLT 1 REMARK REVDAT 2 11-AUG-10 2KLT 1 JRNL REVDAT 1 18-AUG-09 2KLT 0 JRNL AUTH M.HILGE,J.AELEN,A.FOARCE,A.PERRAKIS,G.W.VUISTER JRNL TITL CA2+ REGULATION IN THE NA+/CA2+ EXCHANGER FEATURES A DUAL JRNL TITL 2 ELECTROSTATIC SWITCH MECHANISM. JRNL REF PROC.NATL.ACAD.SCI.USA V. 106 14333 2009 JRNL REFN ISSN 0027-8424 JRNL PMID 19667209 JRNL DOI 10.1073/PNAS.0902171106 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CYANA 2.1, X-PLOR REMARK 3 AUTHORS : HERRMANN, GUNTERT, WUTHRICH (CYANA), BRUNGER (X REMARK 3 -PLOR) REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2KLT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-JUL-09. REMARK 100 THE DEPOSITION ID IS D_1000101280. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 306 REMARK 210 PH : 7.0 REMARK 210 IONIC STRENGTH : 0.02 REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 0.5 MM [U-100% 13C; U-100% 15N] REMARK 210 NA+/CA2+ EXCHANGER, 20 MM HEPES, REMARK 210 20 MM B-MERCAPTOETHANOL, 10 MM REMARK 210 CACL2, 95% H2O/5% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D 1H-15N HSQC; 3D HNCACB; 3D REMARK 210 CBCA(CO)NH; 3D HCCH-TOCSY; 3D REMARK 210 HNHA; 3D 1H-15N NOESY; 3D 1H-13C REMARK 210 NOESY ALIPHATIC; 3D 1H-13C NOESY REMARK 210 AROMATIC REMARK 210 SPECTROMETER FIELD STRENGTH : 800 MHZ; 600 MHZ REMARK 210 SPECTROMETER MODEL : INOVA REMARK 210 SPECTROMETER MANUFACTURER : VARIAN REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : NULL REMARK 210 METHOD USED : TORSION ANGLE DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 100 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST REMARK 210 ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: NULL REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS. REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 465 SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 MODELS 1-20 REMARK 465 RES C SSSEQI REMARK 465 MET A 494 REMARK 465 SER A 495 REMARK 465 HIS A 496 REMARK 465 HIS A 497 REMARK 465 HIS A 498 REMARK 465 HIS A 499 REMARK 465 HIS A 500 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS 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 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 1 ARG A 532 77.61 -161.12 REMARK 500 1 GLU A 551 -77.95 -76.25 REMARK 500 1 GLN A 563 -77.90 -83.10 REMARK 500 1 GLU A 579 78.93 -112.57 REMARK 500 1 GLU A 580 -94.44 -91.88 REMARK 500 1 GLU A 584 42.41 -108.77 REMARK 500 1 ARG A 598 -179.98 -65.83 REMARK 500 1 ARG A 599 -21.08 67.15 REMARK 500 1 MET A 601 -167.92 -100.76 REMARK 500 1 GLN A 615 -56.71 -175.68 REMARK 500 1 LYS A 620 -158.56 -114.62 REMARK 500 1 GLU A 621 -157.05 -84.55 REMARK 500 1 GLU A 646 164.37 144.74 REMARK 500 1 SER A 648 86.36 67.96 REMARK 500 2 GLU A 551 -73.05 -76.97 REMARK 500 2 GLN A 563 -86.94 -116.29 REMARK 500 2 ARG A 578 -46.66 -138.73 REMARK 500 2 THR A 608 -54.17 -132.28 REMARK 500 2 LYS A 620 -150.93 -134.57 REMARK 500 2 GLU A 637 -84.17 -74.33 REMARK 500 3 ALA A 502 -51.22 71.72 REMARK 500 3 GLU A 551 -76.46 -69.77 REMARK 500 3 GLN A 563 -81.13 -136.79 REMARK 500 3 GLU A 582 -71.42 -76.03 REMARK 500 3 GLU A 584 31.96 -89.33 REMARK 500 3 LYS A 614 103.93 -160.67 REMARK 500 4 THR A 545 -44.43 66.85 REMARK 500 4 GLU A 551 -76.36 -93.02 REMARK 500 4 ASP A 555 98.91 -68.19 REMARK 500 4 GLU A 559 -10.09 60.44 REMARK 500 4 GLN A 563 -94.55 -103.63 REMARK 500 4 ARG A 578 -72.85 -128.31 REMARK 500 4 GLU A 579 -165.69 -102.98 REMARK 500 4 GLU A 582 81.04 63.90 REMARK 500 4 GLU A 584 27.31 -156.28 REMARK 500 4 LYS A 602 -57.88 -165.46 REMARK 500 5 GLU A 551 -79.02 -70.86 REMARK 500 5 GLN A 563 -84.57 -90.08 REMARK 500 5 GLU A 582 15.80 -144.39 REMARK 500 5 GLU A 584 21.66 -150.05 REMARK 500 5 LEU A 635 -158.32 -109.63 REMARK 500 5 GLU A 637 -73.36 -59.75 REMARK 500 5 SER A 648 94.00 -160.07 REMARK 500 6 GLU A 551 -81.79 -69.67 REMARK 500 6 GLU A 559 14.54 -156.42 REMARK 500 6 GLN A 563 -79.64 -90.15 REMARK 500 6 ARG A 578 31.86 -92.90 REMARK 500 6 GLU A 609 -50.17 71.18 REMARK 500 6 GLN A 615 -50.75 -174.36 REMARK 500 6 GLU A 646 -54.57 71.53 REMARK 500 REMARK 500 THIS ENTRY HAS 163 RAMACHANDRAN OUTLIERS. REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 3 ARG A 532 0.07 SIDE CHAIN REMARK 500 4 ARG A 625 0.09 SIDE CHAIN REMARK 500 14 ARG A 625 0.08 SIDE CHAIN REMARK 500 15 ARG A 578 0.09 SIDE CHAIN REMARK 500 17 ARG A 625 0.08 SIDE CHAIN REMARK 500 18 ARG A 527 0.09 SIDE CHAIN REMARK 500 18 ARG A 547 0.09 SIDE CHAIN REMARK 500 19 ARG A 578 0.09 SIDE CHAIN REMARK 500 19 ARG A 632 0.08 SIDE CHAIN REMARK 500 20 ARG A 625 0.07 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2KLS RELATED DB: PDB REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE DIFFERENCES BETWEEN THE DEPOSITED SEQUENCE AND THE SEQUENCE OF REMARK 999 UNP ENTRY P23685 ORIGINATE FROM THE FACT THAT THERE ARE SEVERAL REMARK 999 SPLICE FORMS. P23685 CONTAINS ALL EXONS (A,C,D,E AND F). THE REMARK 999 DEPOSITED STRUCTURE CONTAINS ONLY EXONS B AND D (OFTEN ALSO TERMED REMARK 999 AS NCX1.3). DBREF 2KLT A 494 656 PDB 2KLT 2KLT 494 656 SEQRES 1 A 163 MET SER HIS HIS HIS HIS HIS HIS ALA GLY ILE PHE THR SEQRES 2 A 163 PHE GLU GLU PRO VAL THR HIS VAL SER GLU SER ILE GLY SEQRES 3 A 163 ILE MET GLU VAL LYS VAL LEU ARG THR SER GLY ALA ARG SEQRES 4 A 163 GLY ASN VAL ILE VAL PRO TYR LYS THR ILE GLU GLY THR SEQRES 5 A 163 ALA ARG GLY GLY GLY GLU ASP PHE GLU ASP THR CYS GLY SEQRES 6 A 163 GLU LEU GLU PHE GLN ASN ASP GLU ILE VAL LYS ILE ILE SEQRES 7 A 163 THR ILE ARG ILE PHE ASP ARG GLU GLU TYR GLU LYS GLU SEQRES 8 A 163 CYS SER PHE SER LEU VAL LEU GLU GLU PRO LYS TRP ILE SEQRES 9 A 163 ARG ARG GLY MET LYS GLY GLY PHE THR ILE THR GLU GLU SEQRES 10 A 163 TYR ASP ASP LYS GLN PRO LEU THR SER LYS GLU GLU GLU SEQRES 11 A 163 GLU ARG ARG ILE ALA GLU MET GLY ARG PRO ILE LEU GLY SEQRES 12 A 163 GLU HIS THR LYS LEU GLU VAL ILE ILE GLU GLU SER TYR SEQRES 13 A 163 GLU PHE LYS SER THR VAL ASP HELIX 1 1 SER A 515 ILE A 518 5 4 HELIX 2 2 GLU A 624 MET A 630 1 7 SHEET 1 A 4 LYS A 569 ARG A 574 0 SHEET 2 A 4 ILE A 520 ARG A 527 -1 N VAL A 523 O ILE A 571 SHEET 3 A 4 ILE A 504 PHE A 507 -1 N THR A 506 O LEU A 526 SHEET 4 A 4 ILE A 634 LEU A 635 1 O ILE A 634 N PHE A 505 SHEET 1 B 5 VAL A 511 HIS A 513 0 SHEET 2 B 5 LYS A 640 ILE A 644 1 O GLU A 642 N THR A 512 SHEET 3 B 5 SER A 586 LEU A 591 -1 N PHE A 587 O VAL A 643 SHEET 4 B 5 ARG A 532 ILE A 542 -1 N ILE A 542 O SER A 588 SHEET 5 B 5 CYS A 557 ASN A 564 -1 O PHE A 562 N VAL A 535 SHEET 1 C 5 VAL A 511 HIS A 513 0 SHEET 2 C 5 LYS A 640 ILE A 644 1 O GLU A 642 N THR A 512 SHEET 3 C 5 SER A 586 LEU A 591 -1 N PHE A 587 O VAL A 643 SHEET 4 C 5 ARG A 532 ILE A 542 -1 N ILE A 542 O SER A 588 SHEET 5 C 5 LYS A 595 ILE A 597 -1 O ILE A 597 N ASN A 534 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1 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 MODEL 1