HEADER CA-BINDING PROTEIN 01-FEB-10 2KTG OBSLTE 08-JUN-11 2KTG 2LC5 TITLE CALMODULIN LIKE PROTEIN FROM ENTAMOEBA HISTOLYTICA: SOLUTION STRUCTURE TITLE 2 AND CALCIUM BINDING PROPERTIES OF A PARTIALLY FOLDED PROTEIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: CALMODULIN, PUTATIVE; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 1-85; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ENTAMOEBA HISTOLYTICA; SOURCE 3 ORGANISM_TAXID: 294381; SOURCE 4 STRAIN: HM-1:IMSS; SOURCE 5 GENE: EHI_100270; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: VECTOR; SOURCE 9 EXPRESSION_SYSTEM_VECTOR: PET30A KEYWDS EHCAM, CA-BINDING PROTEIN, ENTAMOEBA HISTOLYTICA, PARTIALLY KEYWDS 2 STRUCTURED PROTEIN, CAM-LIKE EXPDTA SOLUTION NMR NUMMDL 20 AUTHOR A.K.ROUT,N.PADHAN,R.P.BARNWAL,A.BHATTACHARYA,K.V.CHARY REVDAT 2 08-JUN-11 2KTG 1 OBSLTE REVDAT 1 05-JAN-11 2KTG 0 JRNL AUTH A.K.ROUT,N.PADHAN,R.P.BARNWAL,A.BHATTACHARYA,K.V.CHARY JRNL TITL CALMODULIN LIKE PROTEIN FROM ENTAMOEBA HISTOLYTICA: SOLUTION JRNL TITL 2 STRUCTURE AND CALCIUM BINDING PROPERTIES OF A PARTIALLY JRNL TITL 3 FOLDED PROTEIN. JRNL REF BIOCHEMISTRY 2010 JRNL REFN ISSN 0006-2960 JRNL PMID 21114322 JRNL DOI 10.1021/BI101411Q REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CYANA 3.0 BETA REMARK 3 AUTHORS : GUNTERT, MUMENTHALER AND WUTHRICH REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2KTG COMPLIES WITH FORMAT V. 3.20, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 16-FEB-10. REMARK 100 THE RCSB ID CODE IS RCSB101552. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 303 REMARK 210 PH : 7.0 REMARK 210 IONIC STRENGTH : NULL REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 1.1 MM [U-100% 15N] SAMPLE_1-1, REMARK 210 90% H2O/10% D2O; 1.1 MM [U-100% REMARK 210 13C; U-100% 15N] SAMPLE_2-2, 90% REMARK 210 H2O/10% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D 1H-15N HSQC; 3D CBCA(CO)NH; REMARK 210 3D HNCO; 3D HNCA; 3D HNCACB; 3D REMARK 210 HN(CO)CA; 3D 1H-15N NOESY; 3D 1H- REMARK 210 15N TOCSY; 3D 1H-13C NOESY REMARK 210 SPECTROMETER FIELD STRENGTH : 800 MHZ REMARK 210 SPECTROMETER MODEL : AVANCE REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : CYANA 3.0 BETA REMARK 210 METHOD USED : DISTANCE GEOMETRY, SIMULATED REMARK 210 ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 100 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST 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 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 ALA A 45 -75.93 -136.17 REMARK 500 1 ASN A 46 68.36 -175.90 REMARK 500 1 ASN A 63 -74.54 -139.34 REMARK 500 1 SER A 64 -169.17 -176.79 REMARK 500 1 GLN A 81 -35.14 -178.75 REMARK 500 1 GLU A 82 -75.18 69.66 REMARK 500 2 ASP A 24 68.57 -115.82 REMARK 500 2 ALA A 45 -75.82 -138.90 REMARK 500 2 ASN A 46 68.16 -175.74 REMARK 500 2 PRO A 47 -170.91 -69.79 REMARK 500 2 ASN A 63 -74.90 -142.31 REMARK 500 2 SER A 64 -169.17 -179.55 REMARK 500 2 GLN A 81 -74.81 -74.46 REMARK 500 3 ASP A 24 75.87 -117.30 REMARK 500 3 ASP A 26 -169.65 -70.58 REMARK 500 3 ALA A 45 83.24 64.03 REMARK 500 3 ASN A 46 -60.93 179.69 REMARK 500 3 PRO A 47 -170.86 -69.79 REMARK 500 3 ASP A 60 64.42 -104.33 REMARK 500 3 ASN A 63 -74.50 -149.46 REMARK 500 3 SER A 64 -169.34 -178.65 REMARK 500 4 LEU A 8 74.25 -170.80 REMARK 500 4 PRO A 47 -170.81 -69.79 REMARK 500 4 ASP A 60 54.46 -99.41 REMARK 500 4 ASN A 63 -69.41 -152.37 REMARK 500 4 SER A 64 -169.31 -179.35 REMARK 500 4 GLU A 82 -177.18 58.86 REMARK 500 5 SER A 2 -55.28 -167.03 REMARK 500 5 LYS A 6 48.88 -103.46 REMARK 500 5 ASP A 24 67.98 -117.40 REMARK 500 5 ASP A 26 -169.00 -70.34 REMARK 500 5 ALA A 45 31.96 -98.26 REMARK 500 5 PRO A 47 -174.06 -69.79 REMARK 500 5 ASP A 60 70.02 -104.21 REMARK 500 5 ASN A 63 -71.34 -148.81 REMARK 500 5 SER A 64 -169.40 -178.81 REMARK 500 5 GLN A 81 -74.90 -91.66 REMARK 500 5 GLU A 82 -179.88 -176.84 REMARK 500 6 SER A 2 119.27 -166.91 REMARK 500 6 GLU A 3 -63.86 -124.52 REMARK 500 6 ASP A 26 -169.64 -73.77 REMARK 500 6 PRO A 47 -170.75 -69.77 REMARK 500 6 ASN A 63 -74.53 -142.01 REMARK 500 6 SER A 64 -169.16 -178.56 REMARK 500 6 VAL A 83 151.99 65.15 REMARK 500 7 SER A 2 -70.67 -153.12 REMARK 500 7 ASP A 26 -169.60 -75.48 REMARK 500 7 ASN A 46 -61.01 179.76 REMARK 500 7 ASP A 60 50.45 -97.25 REMARK 500 7 ASN A 63 -72.46 -141.08 REMARK 500 REMARK 500 THIS ENTRY HAS 146 RAMACHANDRAN OUTLIERS. 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 1 CA A 250 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 26 OD1 REMARK 620 2 ASP A 24 OD1 55.9 REMARK 620 3 ASP A 26 OD2 47.8 103.6 REMARK 620 N 1 2 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 250 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 300 DBREF 2KTG A 1 85 UNP C4M0U8 C4M0U8_ENTHI 1 85 SEQRES 1 A 85 MET SER GLU GLN LYS LYS VAL LEU THR ALA GLU GLU GLN SEQRES 2 A 85 GLN GLU TYR LYS GLU ALA PHE GLN LEU PHE ASP LYS ASP SEQRES 3 A 85 ASN ASP ASN LYS LEU THR ALA GLU GLU LEU GLY THR VAL SEQRES 4 A 85 MET ARG ALA LEU GLY ALA ASN PRO THR LYS GLN LYS ILE SEQRES 5 A 85 SER GLU ILE VAL LYS ASP TYR ASP LYS ASP ASN SER GLY SEQRES 6 A 85 LYS PHE ASP GLN GLU THR PHE LEU THR ILE MET LEU GLU SEQRES 7 A 85 TYR GLY GLN GLU VAL ASP SER HET CA A 250 1 HET CA A 300 1 HETNAM CA CALCIUM ION FORMUL 2 CA 2(CA 2+) HELIX 1 1 THR A 9 PHE A 23 1 15 HELIX 2 2 ALA A 33 ALA A 42 1 10 HELIX 3 3 THR A 48 ASP A 60 1 13 HELIX 4 4 GLN A 69 GLY A 80 1 12 SHEET 1 A 2 LYS A 30 THR A 32 0 SHEET 2 A 2 LYS A 66 ASP A 68 -1 O PHE A 67 N LEU A 31 LINK OD1 ASP A 26 CA CA A 250 1555 1555 2.96 LINK OD1 ASP A 24 CA CA A 250 1555 1555 2.53 LINK OD2 ASP A 26 CA CA A 250 1555 1555 2.12 SITE 1 AC1 5 ASP A 26 ASP A 28 LYS A 30 LEU A 31 SITE 2 AC1 5 LYS A 66 SITE 1 AC2 4 VAL A 56 TYR A 59 ASP A 60 LYS A 66 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