**************************************************************************** 3DNA v2.2-2015jun09, created and maintained by Xiang-Jun Lu (PhD) **************************************************************************** 1. The list of the parameters given below correspond to the 5' to 3' direction of strand I and 3' to 5' direction of strand II. 2. All angular parameters, except for the phase angle of sugar pseudo- rotation, are measured in degrees in the range of [-180, +180], and all displacements are measured in Angstrom units. **************************************************************************** File name: 1bna.pdb Date and time: Fri Oct 9 12:44:01 2015 Number of base-pairs: 12 Number of atoms: 566 **************************************************************************** HEADER DNA 26-JAN-81 1BNA TITLE STRUCTURE OF A B-DNA DODECAMER. CONFORMATION AND DYNAMICS COMPND MOL_ID: 1; COMPND 2 MOLECULE: DNA (5'-D(*CP*GP*CP*GP*AP*AP*TP*TP*CP*GP*CP*G)- COMPND 3 3'); COMPND 4 CHAIN: A, B; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES KEYWDS B-DNA, DOUBLE HELIX EXPDTA X-RAY DIFFRACTION AUTHOR H.R.DREW,R.M.WING,T.TAKANO,C.BROKA,S.TANAKA,K.ITAKURA, AUTHOR 2 R.E.DICKERSON REVDAT 3 24-FEB-09 1BNA 1 VERSN REVDAT 2 01-APR-03 1BNA 1 JRNL REVDAT 1 21-MAY-81 1BNA 0 JRNL AUTH H.R.DREW,R.M.WING,T.TAKANO,C.BROKA,S.TANAKA, JRNL AUTH 2 K.ITAKURA,R.E.DICKERSON JRNL TITL STRUCTURE OF A B-DNA DODECAMER: CONFORMATION AND JRNL TITL 2 DYNAMICS. JRNL REF PROC.NATL.ACAD.SCI.USA V. 78 2179 1981 JRNL REFN ISSN 0027-8424 JRNL PMID 6941276 JRNL DOI 10.1073/PNAS.78.4.2179 **************************************************************************** RMSD of the bases (----- for WC bp, + for isolated bp, x for helix change) Strand I Strand II Helix 1 (0.020) ....>A:...1_:[.DC]C-----G[.DG]:..24_:B<.... (0.029) | 2 (0.025) ....>A:...2_:[.DG]G-----C[.DC]:..23_:B<.... (0.022) | 3 (0.024) ....>A:...3_:[.DC]C-----G[.DG]:..22_:B<.... (0.020) | 4 (0.023) ....>A:...4_:[.DG]G-----C[.DC]:..21_:B<.... (0.023) | 5 (0.016) ....>A:...5_:[.DA]A-----T[.DT]:..20_:B<.... (0.035) | 6 (0.021) ....>A:...6_:[.DA]A-----T[.DT]:..19_:B<.... (0.040) | 7 (0.035) ....>A:...7_:[.DT]T-----A[.DA]:..18_:B<.... (0.015) | 8 (0.039) ....>A:...8_:[.DT]T-----A[.DA]:..17_:B<.... (0.020) | 9 (0.024) ....>A:...9_:[.DC]C-----G[.DG]:..16_:B<.... (0.028) | 10 (0.023) ....>A:..10_:[.DG]G-----C[.DC]:..15_:B<.... (0.024) | 11 (0.024) ....>A:..11_:[.DC]C-----G[.DG]:..14_:B<.... (0.025) | 12 (0.023) ....>A:..12_:[.DG]G-----C[.DC]:..13_:B<.... (0.023) | **************************************************************************** Detailed H-bond information: atom-name pair and length [ O N] 1 C-----G [3] O2 - N2 2.78 N3 - N1 2.80 N4 - O6 2.66 2 G-----C [3] O6 - N4 2.71 N1 - N3 2.83 N2 - O2 2.82 3 C-----G [3] O2 - N2 2.77 N3 - N1 2.82 N4 - O6 2.69 4 G-----C [3] O6 - N4 2.61 N1 - N3 2.72 N2 - O2 2.74 5 A-----T [2] N6 - O4 2.91 N1 - N3 2.70 6 A-----T [2] N6 - O4 3.23 N1 - N3 2.85 7 T-----A [2] N3 - N1 2.80 O4 - N6 3.25 8 T-----A [2] N3 - N1 2.78 O4 - N6 2.87 9 C-----G [3] O2 - N2 2.83 N3 - N1 2.81 N4 - O6 2.72 10 G-----C [3] O6 - N4 2.71 N1 - N3 2.79 N2 - O2 2.69 11 C-----G [3] O2 - N2 2.90 N3 - N1 2.85 N4 - O6 2.78 12 G-----C [3] O6 - N4 2.88 N1 - N3 3.09 N2 - O2 3.06 **************************************************************************** Overlap area in Angstrom^2 between polygons defined by atoms on successive bases. Polygons projected in the mean plane of the designed base-pair step. Values in parentheses measure the overlap of base ring atoms only. Those outside parentheses include exocyclic atoms on the ring. Intra- and inter-strand overlap is designated according to the following diagram: i2 3' 5' j2 /|\ | | | Strand I | | II | | | | | \|/ i1 5' 3' j1 step i1-i2 i1-j2 j1-i2 j1-j2 sum 1 CG/CG 0.62( 0.00) 0.00( 0.00) 0.73( 0.00) 2.05( 0.06) 3.39( 0.06) 2 GC/GC 3.72( 1.40) 0.00( 0.00) 0.00( 0.00) 1.69( 0.31) 5.41( 1.71) 3 CG/CG 2.19( 0.00) 0.00( 0.00) 0.06( 0.00) 5.12( 0.88) 7.38( 0.88) 4 GA/TC 5.54( 2.49) 0.00( 0.00) 0.00( 0.00) 3.48( 0.25) 9.02( 2.74) 5 AA/TT 3.12( 1.73) 0.00( 0.00) 0.00( 0.00) 4.77( 0.02) 7.89( 1.75) 6 AT/AT 6.48( 2.84) 0.00( 0.00) 0.00( 0.00) 5.37( 1.69) 11.85( 4.53) 7 TT/AA 5.43( 0.08) 0.00( 0.00) 0.00( 0.00) 3.88( 2.44) 9.31( 2.52) 8 TC/GA 2.66( 0.00) 0.00( 0.00) 0.00( 0.00) 4.45( 1.47) 7.11( 1.48) 9 CG/CG 5.07( 0.86) 0.00( 0.00) 0.05( 0.00) 2.39( 0.00) 7.51( 0.86) 10 GC/GC 0.40( 0.00) 0.00( 0.00) 0.00( 0.00) 4.97( 2.14) 5.37( 2.14) 11 CG/CG 2.55( 0.41) 0.00( 0.00) 0.63( 0.00) 0.18( 0.00) 3.35( 0.41) **************************************************************************** Origin (Ox, Oy, Oz) and mean normal vector (Nx, Ny, Nz) of each base-pair in the coordinate system of the given structure bp Ox Oy Oz Nx Ny Nz 1 C-G 16.505 25.830 26.457 -0.115 -0.437 -0.892 2 G-C 16.349 24.423 23.205 -0.193 -0.341 -0.920 3 C-G 15.688 23.592 19.802 -0.168 -0.417 -0.893 4 G-C 15.747 22.133 17.028 -0.219 -0.280 -0.935 5 A-T 15.187 21.171 13.857 -0.150 -0.269 -0.951 6 A-T 14.746 20.577 10.606 -0.131 -0.278 -0.952 7 T-A 14.775 20.133 7.224 -0.163 -0.231 -0.959 8 T-A 14.295 19.737 3.946 -0.114 -0.215 -0.970 9 C-G 13.950 18.985 0.654 -0.108 -0.215 -0.971 10 G-C 12.558 18.533 -2.386 -0.194 -0.228 -0.954 11 C-G 13.308 18.660 -6.239 -0.013 -0.097 -0.995 12 G-C 12.616 18.562 -9.482 0.018 -0.167 -0.986 **************************************************************************** Local base-pair parameters bp Shear Stretch Stagger Buckle Propeller Opening 1 C-G -0.42 -0.27 0.06 2.76 -14.20 -3.67 2 G-C -0.02 -0.27 0.25 -4.46 -10.85 -4.02 3 C-G 0.00 -0.25 0.21 -6.94 -3.93 -2.35 4 G-C -0.37 -0.44 -0.18 9.31 -10.39 -1.30 5 A-T 0.27 -0.22 0.03 5.03 -16.36 1.84 6 A-T -0.09 -0.04 0.17 3.54 -18.13 5.56 7 T-A 0.32 -0.12 0.13 0.83 -17.70 7.93 8 T-A 0.25 -0.21 -0.10 -1.33 -17.67 0.83 9 C-G -0.02 -0.25 -0.06 -10.18 -17.25 -0.87 10 G-C 0.09 -0.28 0.27 1.67 -5.31 -1.13 11 C-G 0.07 -0.28 0.59 -3.96 -18.05 -5.62 12 G-C -0.53 -0.11 0.26 6.60 1.96 -3.86 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ave. -0.04 -0.23 0.14 0.24 -12.32 -0.55 s.d. 0.28 0.10 0.21 5.78 6.73 4.04 **************************************************************************** Local base-pair step parameters step Shift Slide Rise Tilt Roll Twist 1 CG/CG -0.36 0.15 3.52 -3.40 6.42 40.31 2 GC/GC 0.50 0.23 3.52 0.80 -4.73 38.15 3 CG/CG -0.32 0.69 3.04 3.63 7.95 24.47 4 GA/TC 0.01 0.07 3.36 -2.68 3.16 40.90 5 AA/TT 0.10 -0.31 3.32 -0.70 0.95 35.35 6 AT/AT 0.33 -0.60 3.34 1.83 -2.75 34.76 7 TT/AA -0.31 -0.18 3.32 2.96 0.73 35.39 8 TC/GA 0.02 -0.03 3.39 0.33 -0.05 39.27 9 CG/CG 0.38 0.86 3.24 -3.29 3.86 29.40 10 GC/GC -1.30 0.42 3.68 -4.68 -12.20 40.78 11 CG/CG 0.77 0.06 3.23 3.14 -3.09 32.62 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ave. -0.02 0.12 3.36 -0.19 0.02 35.58 s.d. 0.56 0.42 0.17 2.96 5.65 5.19 **************************************************************************** Local base-pair helical parameters step X-disp Y-disp h-Rise Incl. Tip h-Twist 1 CG/CG -0.55 0.11 3.52 9.23 4.88 40.93 2 GC/GC 0.98 -0.65 3.48 -7.21 -1.23 38.44 3 CG/CG -0.56 1.68 3.03 18.03 -8.24 25.96 4 GA/TC -0.25 -0.31 3.35 4.51 3.82 41.10 5 AA/TT -0.65 -0.27 3.31 1.56 1.16 35.37 6 AT/AT -0.58 -0.26 3.39 -4.60 -3.05 34.91 7 TT/AA -0.39 0.94 3.28 1.19 -4.86 35.52 8 TC/GA -0.04 0.01 3.39 -0.08 -0.49 39.27 9 CG/CG 0.87 -1.43 3.26 7.54 6.43 29.82 10 GC/GC 1.96 1.26 3.54 -16.99 6.52 42.74 11 CG/CG 0.63 -0.83 3.27 -5.47 -5.56 32.91 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ave. 0.13 0.02 3.35 0.70 -0.06 36.09 s.d. 0.86 0.93 0.15 9.37 5.07 5.12 **************************************************************************** Structure classification: This is a right-handed nucleic acid structure **************************************************************************** lambda: virtual angle between C1'-YN1 or C1'-RN9 glycosidic bonds and the base-pair C1'-C1' line C1'-C1': distance between C1' atoms for each base-pair RN9-YN1: distance between RN9-YN1 atoms for each base-pair RC8-YC6: distance between RC8-YC6 atoms for each base-pair bp lambda(I) lambda(II) C1'-C1' RN9-YN1 RC8-YC6 1 C-G 46.4 57.0 10.7 8.9 9.8 2 G-C 51.1 51.5 10.8 8.9 9.8 3 C-G 52.3 55.6 10.6 8.8 9.8 4 G-C 53.4 55.5 10.4 8.6 9.6 5 A-T 55.9 53.1 10.4 8.7 9.8 6 A-T 55.7 57.1 10.5 8.8 9.9 7 T-A 60.0 57.0 10.2 8.7 9.9 8 T-A 55.2 54.3 10.5 8.8 9.8 9 C-G 53.5 53.8 10.6 8.8 9.8 10 G-C 58.4 54.0 10.4 8.8 9.8 11 C-G 51.2 49.2 10.8 8.9 9.8 12 G-C 50.3 53.3 10.9 9.1 9.9 **************************************************************************** Classification of each dinucleotide step in a right-handed nucleic acid structure: A-like; B-like; TA-like; intermediate of A and B, or other cases step Xp Yp Zp XpH YpH ZpH Form 1 CG/CG -2.32 8.97 0.15 -2.87 8.84 1.53 B 2 GC/GC -2.38 9.06 0.03 -1.45 9.00 -1.04 B 3 CG/CG -2.50 9.00 -0.25 -3.10 8.65 2.51 B 4 GA/TC -2.90 8.78 -0.36 -3.08 8.78 0.29 B 5 AA/TT -3.35 8.87 -0.33 -3.97 8.88 -0.10 B 6 AT/AT -3.71 8.90 -0.37 -4.26 8.85 -1.05 B 7 TT/AA -3.29 8.92 -0.54 -3.66 8.93 -0.34 B 8 TC/GA -2.73 8.78 -0.14 -2.76 8.78 -0.15 B 9 CG/CG -2.70 8.79 -0.42 -1.96 8.77 0.80 B 10 GC/GC -2.24 8.92 0.03 -0.38 8.59 -2.40 B 11 CG/CG -2.71 9.00 -0.36 -2.05 8.93 -1.24 B **************************************************************************** Minor and major groove widths: direct P-P distances and refined P-P distances which take into account the directions of the sugar-phosphate backbones (Subtract 5.8 Angstrom from the values to take account of the vdw radii of the phosphate groups, and for comparison with FreeHelix and Curves.) Ref: M. A. El Hassan and C. R. Calladine (1998). ``Two Distinct Modes of Protein-induced Bending in DNA.'' J. Mol. Biol., v282, pp331-343. Minor Groove Major Groove P-P Refined P-P Refined 1 CG/CG --- --- --- --- 2 GC/GC --- --- --- --- 3 CG/CG 13.8 --- 17.3 --- 4 GA/TC 12.0 12.0 17.3 17.3 5 AA/TT 10.5 10.5 17.5 17.3 6 AT/AT 9.9 9.9 16.8 16.3 7 TT/AA 9.3 9.3 17.4 17.4 8 TC/GA 10.0 9.9 18.5 18.4 9 CG/CG 11.0 --- 17.8 --- 10 GC/GC --- --- --- --- 11 CG/CG --- --- --- --- **************************************************************************** Global linear helical axis defined by equivalent C1' and RN9/YN1 atom pairs Deviation from regular linear helix: 3.35(0.44) Helix: -0.088 -0.275 -0.958 HETATM 9998 XS X X 999 16.795 25.817 26.180 HETATM 9999 XE X X 999 13.557 15.707 -9.067 Average and standard deviation of helix radius: P: 9.37(0.98), O4': 6.41(0.98), C1': 5.85(0.98) Global parameters based on C1'-C1' vectors: disp.: displacement of the middle C1'-C1' point from the helix angle: inclination between C1'-C1' vector and helix (subtracted from 90) twist: helical twist angle between consecutive C1'-C1' vectors rise: helical rise by projection of the vector connecting consecutive C1'-C1' middle points onto the helical axis bp disp. angle twist rise 1 C-G 1.98 6.92 39.01 3.12 2 G-C 2.58 6.24 37.78 2.98 3 C-G 2.65 6.18 27.85 4.15 4 G-C 3.48 2.78 36.87 3.05 5 A-T 3.54 -3.08 37.23 3.26 6 A-T 3.34 -5.67 31.82 3.12 7 T-A 2.90 -5.89 35.56 3.25 8 T-A 2.92 -6.63 40.61 2.98 9 C-G 2.69 -7.93 30.55 4.10 10 G-C 2.36 -6.00 40.17 2.98 11 C-G 2.40 -12.35 36.98 3.82 12 G-C 1.73 -7.87 --- --- **************************************************************************** Main chain and chi torsion angles: Note: alpha: O3'(i-1)-P-O5'-C5' beta: P-O5'-C5'-C4' gamma: O5'-C5'-C4'-C3' delta: C5'-C4'-C3'-O3' epsilon: C4'-C3'-O3'-P(i+1) zeta: C3'-O3'-P(i+1)-O5'(i+1) chi for pyrimidines(Y): O4'-C1'-N1-C2 chi for purines(R): O4'-C1'-N9-C4 Strand I base alpha beta gamma delta epsilon zeta chi 1 C --- --- 174.2 156.8 -141.3 -143.9 -105.0 2 G -65.6 169.8 40.1 128.1 174.2 -97.8 -110.5 3 C -62.6 171.8 58.8 98.3 -176.7 -87.6 -135.1 4 G -62.9 -179.9 57.2 155.7 -155.3 -152.5 -93.4 5 A -43.0 142.8 52.4 119.6 179.9 -92.2 -126.3 6 A -73.3 179.7 66.0 121.1 173.7 -88.5 -122.2 7 T -56.6 -179.2 52.2 98.9 173.6 -85.9 -127.3 8 T -59.2 173.4 64.1 108.9 170.6 -89.3 -125.7 9 C -58.5 -179.5 60.5 128.7 -156.9 -94.0 -119.5 10 G -67.3 169.1 47.2 142.9 -103.3 150.2 -89.6 11 C -73.9 139.3 56.3 135.7 -161.8 -89.6 -125.1 12 G -81.5 175.7 57.2 110.7 --- --- -112.0 Strand II base alpha beta gamma delta epsilon zeta chi 1 G -65.0 170.6 46.6 78.7 --- --- -135.2 2 C -72.2 138.5 44.6 112.8 -174.4 -96.8 -125.3 3 G -66.8 179.1 50.2 149.7 -100.1 171.6 -88.4 4 C -59.1 -175.4 45.0 110.3 -176.7 -86.5 -114.3 5 T -58.6 179.5 55.3 122.4 178.5 -94.5 -120.5 6 T -58.3 173.6 60.0 109.2 178.8 -88.3 -131.3 7 A -57.1 -173.6 47.7 130.2 174.4 -101.3 -108.3 8 A -56.6 -169.5 53.8 146.6 176.9 -97.1 -106.4 9 G -69.2 171.1 73.2 135.9 174.1 -98.4 -114.8 10 C -63.0 168.8 60.4 85.7 174.8 -85.5 -133.8 11 G -51.3 163.9 49.0 121.9 177.7 -93.0 -116.4 12 C --- --- 55.9 136.7 -158.6 -124.9 -127.6 **************************************************************************** Sugar conformational parameters: Note: v0: C4'-O4'-C1'-C2' v1: O4'-C1'-C2'-C3' v2: C1'-C2'-C3'-C4' v3: C2'-C3'-C4'-O4' v4: C3'-C4'-O4'-C1' tm: the amplitude of pucker P: the phase angle of pseudorotation Strand I base v0 v1 v2 v3 v4 tm P Puckering 1 C -34.0 54.5 -52.4 33.7 0.0 55.3 161.2 C2'-endo 2 G -36.1 41.9 -31.7 10.8 16.1 41.7 139.5 C1'-exo 3 C -37.6 23.3 -1.9 -20.3 36.6 38.3 92.8 O4'-endo 4 G -26.7 46.3 -47.1 33.4 -4.4 48.5 166.3 C2'-endo 5 A -44.7 44.3 -28.9 3.4 25.8 46.3 128.6 C1'-exo 6 A -48.1 47.5 -29.9 2.2 29.0 49.8 126.9 C1'-exo 7 T -48.1 34.1 -9.3 -18.5 42.1 47.3 101.3 O4'-endo 8 T -50.1 42.8 -21.3 -7.4 36.2 49.2 115.6 C1'-exo 9 C -40.4 46.3 -35.7 12.9 17.1 46.4 140.4 C1'-exo 10 G -44.1 54.5 -44.1 20.4 14.1 53.4 145.8 C2'-endo 11 C -37.7 47.0 -39.7 18.6 11.7 47.0 147.5 C2'-endo 12 G -52.9 44.2 -20.9 -9.4 39.1 51.7 113.8 C1'-exo Strand II base v0 v1 v2 v3 v4 tm P Puckering 1 G -12.8 -16.7 37.4 -46.3 37.4 45.5 34.7 C3'-endo 2 C -44.7 39.3 -20.0 -5.7 31.7 44.2 116.9 C1'-exo 3 G -35.6 50.9 -46.7 27.9 4.3 51.0 156.3 C2'-endo 4 C -43.6 36.8 -17.2 -8.0 32.7 42.9 113.6 C1'-exo 5 T -47.8 48.2 -31.8 4.7 27.1 49.9 129.6 C1'-exo 6 T -48.0 42.0 -21.0 -6.6 34.5 47.5 116.3 C1'-exo 7 A -33.7 43.1 -35.5 16.5 10.6 42.3 147.0 C2'-endo 8 A -21.1 39.2 -41.6 30.1 -6.0 42.3 169.3 C2'-endo 9 G -31.8 40.8 -35.3 17.3 9.0 41.0 149.3 C2'-endo 10 C -33.9 9.4 16.6 -37.0 44.6 43.8 67.7 C4'-exo 11 G -43.4 42.7 -28.0 3.1 25.4 45.0 128.5 C1'-exo 12 C -31.3 42.9 -38.5 20.8 6.4 43.1 153.2 C2'-endo **************************************************************************** Same strand P--P and C1'--C1' virtual bond distances Strand I Strand II step P--P C1'--C1' step P--P C1'--C1' 1 C/G --- 5.35 1 G/C 6.67 4.90 2 G/C 6.64 4.72 2 C/G 6.60 5.00 3 C/G 6.47 5.12 3 G/C 6.17 4.84 4 G/A 6.83 4.73 4 C/T 6.70 5.04 5 A/A 6.88 5.04 5 T/T 6.70 5.06 6 A/T 6.90 4.79 6 T/A 6.71 4.74 7 T/T 6.29 4.87 7 A/A 6.77 4.83 8 T/C 6.87 4.92 8 A/G 7.12 5.04 9 C/G 6.70 4.92 9 G/C 6.46 4.99 10 G/C 6.55 5.26 10 C/G 6.62 4.51 11 C/G 7.05 5.12 11 G/C --- 5.23 **************************************************************************** Helix radius (radial displacement of P, O4', and C1' atoms in local helix frame of each dimer) Strand I Strand II step P O4' C1' P O4' C1' 1 CG/CG 9.39 6.88 6.19 9.21 6.69 5.87 2 GC/GC 8.60 5.29 4.82 9.65 6.60 6.11 3 CG/CG 10.57 8.28 7.45 7.84 5.08 4.30 4 GA/TC 8.86 6.26 5.59 9.76 6.59 6.13 5 AA/TT 9.37 6.50 5.92 10.07 6.93 6.39 6 AT/AT 9.60 6.27 5.83 10.04 6.78 6.35 7 TT/AA 10.57 7.38 6.75 8.77 5.72 5.32 8 TC/GA 9.39 6.28 5.77 9.02 6.39 5.85 9 CG/CG 7.95 4.70 4.09 10.19 7.78 6.87 10 GC/GC 9.63 6.48 6.31 7.58 4.30 3.81 11 CG/CG 8.43 5.34 4.84 9.96 7.00 6.43 **************************************************************************** Position (Px, Py, Pz) and local helical axis vector (Hx, Hy, Hz) for each dinucleotide step step Px Py Pz Hx Hy Hz 1 CG/CG 15.91 25.24 24.81 -0.02 -0.29 -0.96 2 GC/GC 16.95 23.41 21.47 -0.29 -0.40 -0.87 3 CG/CG 14.14 23.48 18.06 0.12 -0.24 -0.96 4 GA/TC 15.84 21.64 15.38 -0.16 -0.37 -0.92 5 AA/TT 15.63 20.75 12.17 -0.15 -0.30 -0.94 6 AT/AT 15.18 19.92 8.98 -0.07 -0.21 -0.98 7 TT/AA 15.48 20.08 5.43 -0.11 -0.30 -0.95 8 TC/GA 14.13 19.32 2.31 -0.11 -0.22 -0.97 9 CG/CG 12.75 20.30 -0.87 -0.18 -0.06 -0.98 10 GC/GC 15.00 18.09 -3.93 0.08 -0.39 -0.92 11 CG/CG 13.80 19.11 -8.05 -0.12 -0.18 -0.98