*HEADER    RIBONUCLEIC ACID                        09-OCT-00   1E95
*TITLE     SOLUTION STRUCTURE OF THE PSEUDOKNOT OF SRV-1 RNA, INVOLVED
*TITLE    2 IN RIBOSOMAL FRAMESHIFTING
*COMPND    MOL_ID: 1;
*COMPND   2 MOLECULE: RNA (5'-(*GP*CP*GP*GP*CP*CP*AP*GP*CP*UP*CP*
*COMPND   3               CP*AP*GP*GP*CP*CP*GP*CP*CP*AP*AP*AP*CP*
*COMPND   4               AP*AP*UP*AP*UP*GP*GP*AP*GP*CP*AP*C)-3');
*COMPND   5 SYNONYM: SRV-1 RNA PSEUDOKNOT;
*COMPND   6 CHAIN: A;
*COMPND   7 FRAGMENT: GAG-PRO FRAMESHIFTING PSEUDOKNOT;
*COMPND   8 MUTATION: YES
*SOURCE    MOL_ID: 1;
*SOURCE   2 ORGANISM_SCIENTIFIC: SIMIAN RETROVIRUS TYPE-1;
*SOURCE   3 ORGANISM_COMMON: SRV-1;
*SOURCE   4 SYNTHETIC: YES
*KEYWDS    SRV-1, RNA, PSEUDOKNOT, FRAMESHIFT
*EXPDTA    NMR, 15 STRUCTURES
*AUTHOR    P.J.A.MICHIELS,A.VERSLEYEN,C.W.A.PLEIJ,C.W.HILBERS,H.A.HEUS




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       (resid 33 and name H8)
3.3  0.7  0.7

assign (resid 34 and name H5)
       (resid 33 and name H1')
5.0  1.0  1.0

assign (resid 33 and name H1')
       (resid 34 and name H6)
4.3  0.9  0.9

assign (resid 34 and name H5)
       (resid 33 and name H8)
4.7  0.9  0.9

assign (resid 33 and name H8)
       (resid 34 and name H6)
4.5  0.9  0.9

assign (resid 33 and name H2')
       (resid 34 and name H1')
4.0  1.0  1.0

assign (resid 33 and name H2')
       (resid 34 and name H5)
4.0  1.0  1.0

assign (resid 33 and name H2')
       (resid 34 and name H6)
2.2  0.4  0.4

assign (resid 33 and name H3')
       (resid 34 and name H5)
4.0  1.0  1.0

assign (resid 33 and name H3')
       (resid 34 and name H6)
3.9  2.1  2.1

assign (resid 34 and name H1')
       (resid 35 and name H8)
3.4  0.7  0.7

assign (resid 34 and name H6)
       (resid 35 and name H8)
4.9  1.0  1.0

assign (resid 34 and name H2')
       (resid 35 and name H8)
3.9  2.1  2.1

assign (resid 34 and name H3')
       (resid 35 and name H8)
3.0  1.0  1.0

assign (resid 36 and name H5)
       (resid 35 and name H1')
4.0  1.0  1.0

assign (resid 35 and name H1')
       (resid 36 and name H6)
4.7  0.9  0.9

assign (resid 36 and name H1')
       (resid 35 and name H2)
3.7  0.7  0.7

assign (resid 36 and name H5)
       (resid 35 and name H8)
4.2  0.8  0.8

assign (resid 36 and name H6)
       (resid 35 and name H8)
4.2  0.8  0.8

assign (resid 35 and name H2')
       (resid 36 and name H1')
4.0  1.0  1.0

assign (resid 35 and name H2')
       (resid 36 and name H5)
3.6  0.7  0.7

assign (resid 35 and name H2')
       (resid 36 and name H6)
2.4  0.5  0.5

assign (resid 35 and name H3')
       (resid 36 and name H5)
4.0  1.0  1.0

assign (resid 35 and name H3')
       (resid 36 and name H6)
2.8  0.6  0.6

set message=on end

! INTRA RESIDUE

set message=off end

assign (resid 1 and name H5'1)
       (resid 1 and name H8)
4.0  1.0  1.0
OR     (resid 1 and name H5'2)
       (resid 1 and name H8)

assign (resid 1 and name H5'2)
       (resid 1 and name H8)
3.0  1.0  1.0
OR     (resid 1 and name H5'1)
       (resid 1 and name H8)

assign (resid 1 and name H4')
       (resid 1 and name H8)
4.0  1.0  1.0

assign (resid 1 and name H1')
       (resid 1 and name H8)
3.3  0.7  0.7

assign (resid 1 and name H2')
       (resid 1 and name H8)
2.4  0.5  0.5

assign (resid 1 and name H3')
       (resid 1 and name H8)
2.8  0.6  0.6

assign (resid 2 and name H4')
       (resid 2 and name H6)
3.9  2.1  2.1

assign (resid 2 and name H5)
       (resid 2 and name H1')
4.0  1.0  1.0

assign (resid 2 and name H1')
       (resid 2 and name H6)
3.6  0.7  0.7

assign (resid 2 and name H2')
       (resid 2 and name H5)
4.0  1.0  1.0

assign (resid 2 and name H2')
       (resid 2 and name H6)
3.9  2.1  2.1

assign (resid 2 and name H3')
       (resid 2 and name H6)
2.3  0.5  0.5

assign (resid 3 and name H1')
       (resid 3 and name H8)
3.9  0.8  0.8

assign (resid 3 and name H2')
       (resid 3 and name H8)
3.9  2.1  2.1

assign (resid 3 and name H3')
       (resid 3 and name H8)
2.9  0.6  0.6

assign (resid 4 and name H1')
       (resid 4 and name H8)
3.6  0.7  0.7

assign (resid 4 and name H2')
       (resid 4 and name H8)
5.0  1.0  1.0

assign (resid 4 and name H3')
       (resid 4 and name H8)
3.0  0.6  0.6

assign (resid 5 and name H2')
       (resid 5 and name H6)
4.0  0.8  0.8

assign (resid 5 and name H3')
       (resid 5 and name H6)
3.9  2.1  2.1

assign (resid 6 and name H5)
       (resid 6 and name H1')
4.0  1.0  1.0

assign (resid 6 and name H1')
       (resid 6 and name H6)
4.2  0.8  0.8

assign (resid 6 and name H2')
       (resid 6 and name H6)
3.5  0.7  0.7

assign (resid 6 and name H3')
       (resid 6 and name H6)
3.9  2.1  2.1

assign (resid 7 and name H5'1)
       (resid 7 and name H1')
3.7  0.7  0.7
OR     (resid 7 and name H5'2)
       (resid 7 and name H1')

assign (resid 7 and name H5'1)
       (resid 7 and name H8)
4.0  1.0  1.0
OR     (resid 7 and name H5'2)
       (resid 7 and name H8)

assign (resid 7 and name H5'2)
       (resid 7 and name H8)
4.0  1.0  1.0
OR     (resid 7 and name H5'1)
       (resid 7 and name H8)

assign (resid 7 and name H4')
       (resid 7 and name H8)
4.3  0.9  0.9

assign (resid 7 and name H1')
       (resid 7 and name H2)
5.7  1.1  1.1

assign (resid 7 and name H1')
       (resid 7 and name H8)
3.3  0.7  0.7

assign (resid 7 and name H2')
       (resid 7 and name H8)
2.0  0.4  0.4

assign (resid 7 and name H3')
       (resid 7 and name H8)
2.9  0.6  0.6

assign (resid 8 and name H1')
       (resid 8 and name H8)
3.6  0.7  0.7

assign (resid 8 and name H2')
       (resid 8 and name H8)
4.0  1.0  1.0

assign (resid 8 and name H3')
       (resid 8 and name H8)
3.9  2.1  2.1

assign (resid 9 and name H5)
       (resid 9 and name H1')
5.0  1.0  1.0

assign (resid 9 and name H1')
       (resid 9 and name H6)
3.7  0.7  0.7

assign (resid 9 and name H3')
       (resid 9 and name H5)
5.0  1.0  1.0

assign (resid 9 and name H2')
       (resid 9 and name H6)
3.2  0.6  0.6

assign (resid 9 and name H3')
       (resid 9 and name H6)
2.3  0.5  0.5

assign (resid 10 and name H5'2)
       (resid 10 and name H6)
3.4  0.7  0.7
OR     (resid 10 and name H5'1)
       (resid 10 and name H6)

assign (resid 10 and name H4')
       (resid 10 and name H6)
4.0  1.0  1.0

assign (resid 10 and name H5)
       (resid 10 and name H1')
4.0  1.0  1.0

assign (resid 10 and name H1')
       (resid 10 and name H6)
3.4  0.7  0.7

assign (resid 10 and name H3')
       (resid 10 and name H5)
5.0  1.0  1.0

assign (resid 10 and name H3')
       (resid 10 and name H6)
3.0  1.0  1.0

assign (resid 11 and name H1')
       (resid 11 and name H6)
3.9 2.1 2.1

assign (resid 12 and name H1')
       (resid 12 and name H6)
3.9  2.1  2.1

assign (resid 12 and name H3')
       (resid 12 and name H5)
5.0  1.0  1.0

assign (resid 12 and name H2')
       (resid 12 and name H6)
4.0  1.0  1.0

assign (resid 12 and name H3')
       (resid 12 and name H6)
3.0  1.0  1.0

assign (resid 13 and name H1')
       (resid 13 and name H2)
5.0  1.0  1.0

assign (resid 13 and name H1')
       (resid 13 and name H8)
3.7  0.7  0.7

assign (resid 13 and name H2')
       (resid 13 and name H2)
5.1  1.0  1.0

assign (resid 13 and name H2')
       (resid 13 and name H8)
3.5  0.7  0.7

assign (resid 13 and name H3')
       (resid 13 and name H8)
2.4  0.5  0.5

assign (resid 14 and name H1')
       (resid 14 and name H8)
3.9  0.8  0.8

assign (resid 14 and name H2')
       (resid 14 and name H8)
4.2  0.8  0.8

assign (resid 14 and name H3')
       (resid 14 and name H8)
2.5  0.5  0.5

assign (resid 15 and name H1')
       (resid 15 and name H8)
4.9  1.0  1.0

assign (resid 15 and name H2')
       (resid 15 and name H8)
3.6  0.7  0.7

assign (resid 15 and name H3')
       (resid 15 and name H8)
3.4  0.7  0.7

assign (resid 16 and name H1')
       (resid 16 and name H6)
3.9  0.8  0.8

assign (resid 16 and name H3')
       (resid 16 and name H5)
5.0  1.0  1.0

assign (resid 16 and name H2')
       (resid 16 and name H6)
4.8  1.0  1.0

assign (resid 17 and name H1')
       (resid 17 and name H6)
4.0  1.0  1.0

assign (resid 17 and name H3')
       (resid 17 and name H5)
5.0  1.0  1.0

assign (resid 17 and name H2')
       (resid 17 and name H6)
4.1  0.8  0.8

assign (resid 17 and name H3')
       (resid 17 and name H6)
3.0  1.0  1.0

assign (resid 18 and name H4')
       (resid 18 and name H8)
3.9  2.1  2.1

assign (resid 18 and name H1')
       (resid 18 and name H8)
4.0  1.0  1.0

assign (resid 18 and name H2')
       (resid 18 and name H8)
3.2  0.6  0.6

assign (resid 18 and name H3')
       (resid 18 and name H8)
2.7  0.5  0.5

assign (resid 19 and name H5'1)
       (resid 19 and name H1')
5.2  1.0  1.0
OR     (resid 19 and name H5'2)
       (resid 19 and name H1')

assign (resid 19 and name H5'1)
       (resid 19 and name H6)
3.7  0.7  0.7
OR     (resid 19 and name H5'2)
       (resid 19 and name H6)

assign (resid 19 and name H4')
       (resid 19 and name H6)
4.2  0.8  0.8

assign (resid 19 and name H1')
       (resid 19 and name H6)
3.5  0.7  0.7

assign (resid 19 and name H5)
       (resid 19 and name H6)
2.4  0.5  0.5

assign (resid 19 and name H2')
       (resid 19 and name H5)
4.0  1.0  1.0

assign (resid 19 and name H3')
       (resid 19 and name H5)
5.0  1.0  1.0

assign (resid 19 and name H2')
       (resid 19 and name H6)
2.1  0.4  0.4

assign (resid 19 and name H3')
       (resid 19 and name H6)
4.0  1.0  1.0

assign (resid 20 and name H5'1)
       (resid 20 and name H5)
5.0  1.0  1.0
OR     (resid 20 and name H5'2)
       (resid 20 and name H5)

assign (resid 20 and name H5'1)
       (resid 20 and name H6)
3.3  0.7  0.7
OR     (resid 20 and name H5'2)
       (resid 20 and name H6)

assign (resid 20 and name H5'2)
       (resid 20 and name H5)
5.0  1.0  1.0
OR     (resid 20 and name H5'1)
       (resid 20 and name H5)

assign (resid 20 and name H5'2)
       (resid 20 and name H6)
3.1  0.6  0.6
OR     (resid 20 and name H5'1)
       (resid 20 and name H6)

assign (resid 20 and name H1')
       (resid 20 and name H5)
5.0  1.0  1.0

assign (resid 20 and name H1')
       (resid 20 and name H6)
3.2  0.6  0.6

assign (resid 20 and name H2')
       (resid 20 and name H5)
4.0  0.8  0.8

assign (resid 20 and name H2')
       (resid 20 and name H6)
2.0  0.4  0.4

assign (resid 20 and name H3')
       (resid 20 and name H6)
2.7  0.5  0.5

assign (resid 20 and name H4')
       (resid 20 and name H6)
4.2  0.8  0.8

assign (resid 21 and name H5'1)
       (resid 21 and name H8)
4.2  0.8  0.8
OR     (resid 21 and name H5'2)
       (resid 21 and name H8)

assign (resid 21 and name H5'2)
       (resid 21 and name H8)
3.6  0.7  0.7
OR     (resid 21 and name H5'1)
       (resid 21 and name H8)

assign (resid 21 and name H5'2)
       (resid 21 and name H8)
3.8  0.8  0.8
OR     (resid 21 and name H5'1)
       (resid 21 and name H8)

assign (resid 21 and name H4')
       (resid 21 and name H8)
4.0  1.0  1.0

assign (resid 21 and name H1')
       (resid 21 and name H2)
5.4  1.1  1.1

assign (resid 21 and name H1')
       (resid 21 and name H8)
3.1  0.6  0.6

assign (resid 21 and name H2')
       (resid 21 and name H8)
2.4  0.5  0.5

assign (resid 21 and name H3')
       (resid 21 and name H8)
2.4  0.5  0.5

assign (resid 22 and name H5'1)
       (resid 22 and name H8)
4.0  0.8  0.8
OR     (resid 22 and name H5'2)
       (resid 22 and name H8)

assign (resid 22 and name H5'2)
       (resid 22 and name H8)
3.4  0.7  0.7
OR     (resid 22 and name H5'1)
       (resid 22 and name H8)

assign (resid 22 and name H4')
       (resid 22 and name H8)
4.2  0.8  0.8

assign (resid 22 and name H1')
       (resid 22 and name H8)
3.3  0.7  0.7

assign (resid 22 and name H2')
       (resid 22 and name H8)
2.2  0.4  0.4

assign (resid 23 and name H5'1)
       (resid 23 and name H1')
4.0  1.0  1.0
OR     (resid 23 and name H5'2)
       (resid 23 and name H1')

assign (resid 23 and name H5'1)
       (resid 23 and name H8)
4.0  1.0  1.0
OR     (resid 23 and name H5'2)
       (resid 23 and name H8)

assign (resid 23 and name H5'2)
       (resid 23 and name H1')
4.0  1.0  1.0
OR     (resid 23 and name H5'1)
       (resid 23 and name H1')

assign (resid 23 and name H4')
       (resid 23 and name H8)
4.0  1.0  1.0

assign (resid 23 and name H1')
       (resid 23 and name H8)
4.0  1.0  1.0

assign (resid 23 and name H2')
       (resid 23 and name H8)
3.0  1.0  1.0

assign (resid 23 and name H3')
       (resid 23 and name H8)
2.8  0.6  0.6

assign (resid 25 and name H5'1)
       (resid 25 and name H1')
4.0  1.0  1.0
OR     (resid 25 and name H5'2)
       (resid 25 and name H1')

assign (resid 25 and name H5'2)
       (resid 25 and name H1')
5.0  1.0  1.0
OR     (resid 25 and name H5'1)
       (resid 25 and name H1')

assign (resid 25 and name H1')
       (resid 25 and name H8)
4.0  1.0  1.0

assign (resid 25 and name H2')
       (resid 25 and name H8)
4.0  1.0  1.0

assign (resid 25 and name H3')
       (resid 25 and name H8)
3.0  1.0  1.0

assign (resid 26 and name H1')
       (resid 26 and name H2)
4.0  1.0  1.0

assign (resid 26 and name H1')
       (resid 26 and name H8)
4.2  0.8  0.8

assign (resid 26 and name H2')
       (resid 26 and name H8)
3.5  0.7  0.7

assign (resid 26 and name H3')
       (resid 26 and name H8)
2.6  0.5  0.5

assign (resid 27 and name H5'1)
       (resid 27 and name H6)
3.9  0.8  0.8
OR     (resid 27 and name H5'2)
       (resid 27 and name H6)

assign (resid 27 and name H5'2)
       (resid 27 and name H6)
3.7  0.7  0.7
OR     (resid 27 and name H5'1)
       (resid 27 and name H6)

assign (resid 27 and name H4')
       (resid 27 and name H6)
4.2  0.8  0.8

assign (resid 27 and name H6)
       (resid 27 and name H1')
4.0  0.8  0.8

assign (resid 27 and name H3')
       (resid 27 and name H5)
5.0  1.0  1.0

assign (resid 27 and name H2')
       (resid 27 and name H6)
3.2  0.6  0.6

assign (resid 27 and name H3')
       (resid 27 and name H6)
2.5  0.5  0.5

assign (resid 28 and name H5'1)
       (resid 28 and name H8)
4.0  1.0  1.0
OR     (resid 28 and name H5'2)
       (resid 28 and name H8)

assign (resid 28 and name H5'2)
       (resid 28 and name H8)
5.0  1.0  1.0
OR     (resid 28 and name H5'1)
       (resid 28 and name H8)

assign (resid 28 and name H1')
       (resid 28 and name H2)
4.0  1.0  1.0

assign (resid 28 and name H1')
       (resid 28 and name H8)
3.3  0.7  0.7

assign (resid 28 and name H2')
       (resid 28 and name H8)
2.6  0.5  0.5

assign (resid 28 and name H3')
       (resid 28 and name H8)
3.4  0.7  0.7

assign (resid 29 and name H5'1)
       (resid 29 and name H6)
3.9  2.1  2.1
OR     (resid 29 and name H5'2)
       (resid 29 and name H6)

assign (resid 29 and name H5'2)
       (resid 29 and name H6)
4.0  1.0  1.0
OR     (resid 29 and name H5'1)
       (resid 29 and name H6)

assign (resid 29 and name H4')
       (resid 29 and name H6)
4.3  0.9  0.9

assign (resid 29 and name H5)
       (resid 29 and name H1')
4.0  1.0  1.0

assign (resid 29 and name H1')
       (resid 29 and name H6)
3.9  0.8  0.8

assign (resid 29 and name H2')
       (resid 29 and name H6)
4.1  0.8  0.8

assign (resid 29 and name H3')
       (resid 29 and name H6)
3.0  1.0  1.0

assign (resid 30 and name H1')
       (resid 30 and name H8)
3.9  0.8  0.8

assign (resid 30 and name H3')
       (resid 30 and name H8)
3.0  1.0  1.0

assign (resid 31 and name H1')
       (resid 31 and name H8)
4.0  0.8  0.8

assign (resid 31 and name H2')
       (resid 31 and name H8)
3.9  2.1  2.1

assign (resid 31 and name H3')
       (resid 31 and name H8)
2.9  0.6  0.6

assign (resid 32 and name H1')
       (resid 32 and name H2)
4.4  0.9  0.9

assign (resid 32 and name H1')
       (resid 32 and name H8)
3.7  0.7  0.7

assign (resid 32 and name H2')
       (resid 32 and name H8)
2.6  0.5  0.5

assign (resid 32 and name H3')
       (resid 32 and name H8)
2.4  0.5  0.5

assign (resid 33 and name H1')
       (resid 33 and name H8)
3.8  0.8  0.8

assign (resid 33 and name H2')
       (resid 33 and name H8)
2.9  0.6  0.6

assign (resid 33 and name H3')
       (resid 33 and name H8)
2.7  0.5  0.5

assign (resid 34 and name H5)
       (resid 34 and name H1')
5.0  1.0  1.0

assign (resid 34 and name H1')
       (resid 34 and name H6)
3.4  0.7  0.7

assign (resid 34 and name H2')
       (resid 34 and name H5)
5.0  1.0  1.0

assign (resid 34 and name H3')
       (resid 34 and name H5)
5.0  1.0  1.0

assign (resid 34 and name H2')
       (resid 34 and name H6)
3.9  0.8  0.8

assign (resid 34 and name H3')
       (resid 34 and name H6)
3.9  2.1  2.1

assign (resid 35 and name H5'2)
       (resid 35 and name H1')
4.8  1.0  1.0
OR     (resid 35 and name H5'1)
       (resid 35 and name H1')

assign (resid 35 and name H5'2)
       (resid 35 and name H8)
3.2  0.6  0.6
OR     (resid 35 and name H5'1)
       (resid 35 and name H8)

assign (resid 35 and name H1')
       (resid 35 and name H2)
5.1  1.0  1.0

assign (resid 35 and name H1')
       (resid 35 and name H8)
3.7  0.7  0.7

assign (resid 35 and name H2')
       (resid 35 and name H8)
3.0  1.0  1.0

assign (resid 35 and name H3')
       (resid 35 and name H8)
3.9  2.1  2.1

assign (resid 36 and name H1')
       (resid 36 and name H6)
3.4  0.7  0.7

assign (resid 36 and name H5)
       (resid 36 and name H6)
2.4  0.5  0.5

assign (resid 36 and name H2')
       (resid 36 and name H5)
5.0  1.0  1.0

assign (resid 36 and name H3')
       (resid 36 and name H5)
5.0  1.0  1.0

assign (resid 36 and name H2')
       (resid 36 and name H6)
3.0  0.6  0.6

assign (resid 36 and name H3')
       (resid 36 and name H6)
2.4  0.5  0.5

set message=on end

set message=off end

! C24

assign (resid 24 and name H6)
       (resid 25 and name H8)
        3.9 2.1 2.1

assign (resid 23 and name H2')
       (resid 24 and name H1')
       3.9 2.1 2.1

assign (resid 23 and name H1')
       (resid 24 and name H6)
       3.9 2.1 2.1

assign (resid 23 and name H4')
       (resid 24 and name H6)
       3.9 2.1 2.1

assign (resid 23 and name H3')
       (resid 24 and name H6)
       3.9 2.1 2.1

assign (resid 24 and name H4')
       (resid 25 and name H8)
       3.9 2.1 2.1

assign (resid 24 and name H1')
       (resid 25 and name H8)
       3.9 2.1 2.1 


set message=on end

set message=off end

! BASE PAIRS 

! G1-C19
assign (resid 1 and name O6)
       (resid 19 and name N4)
       2.91 0.1 0.1
assign (resid 1 and name N1)
       (resid 19 and name N3)
       2.95 0.1 0.1
assign (resid 1 and name N2)
       (resid 19 and name O2)
       2.86 0.1 0.1

! C2-G18
assign (resid 2 and name N4)
       (resid 18 and name O6)
       2.91 0.1 0.1
assign (resid 2 and name N3)
       (resid 18 and name N1)
       2.95 0.1 0.1
assign (resid 2 and name O2)
       (resid 18 and name N2)
       2.86 0.1 0.1


! G3-C17
assign (resid 3 and name O6)
       (resid 17 and name N4)
       2.91 0.1 0.1
assign (resid 3 and name N1)
       (resid 17 and name N3)
       2.95 0.1 0.1
assign (resid 3 and name N2)
       (resid 17 and name O2)
       2.86 0.1 0.1


! G4-C16
assign (resid 4 and name O6)
       (resid 16 and name N4)
       2.91 0.1 0.1
assign (resid 4 and name N1)
       (resid 16 and name N3)
       2.95 0.1 0.1
assign (resid 4 and name N2)
       (resid 16 and name O2)
       2.86 0.1 0.1

! C5-G15
assign (resid 5 and name N4)
       (resid 15 and name O6)
       2.91 0.1 0.1
assign (resid 5 and name N3)
       (resid 15 and name N1)
       2.95 0.1 0.1
assign (resid 5 and name O2)
       (resid 15 and name N2)
       2.86 0.1 0.1

! C6-G14
assign (resid 6 and name N4)
       (resid 14 and name O6)
       2.91 0.5 0.5
assign (resid 6 and name N3)
       (resid 14 and name N1)
       2.95 0.5 0.5
assign (resid 6 and name O2)
       (resid 14 and name N2)
       2.86 0.5 0.5

! U29-A13
assign (resid 29 and name O4)
       (resid 13 and name N6)
       2.95 0.5 0.5
assign (resid 29 and name N3)
       (resid 13 and name N1)
       2.82 0.5 0.5

! G30-C12
assign (resid 30 and name O6)
       (resid 12 and name N4)
       2.91 0.1 0.1
assign (resid 30 and name N1)
       (resid 12 and name N3)
       2.95 0.1 0.1
assign (resid 30 and name N2)
       (resid 12 and name O2)
       2.86 0.1 0.1

! G31-C11
assign (resid 31 and name O6)
       (resid 11 and name N4)
       2.91 0.1 0.1
assign (resid 31 and name N1)
       (resid 11 and name N3)
       2.95 0.1 0.1
assign (resid 31 and name N2)
       (resid 11 and name O2)
       2.86 0.1 0.1

! A32-U10
assign (resid 32 and name N6)
       (resid 10 and name O4)
       2.95 0.1 0.1
assign (resid 32 and name N1)
       (resid 10 and name N3)
       2.82 0.1 0.1

! G33-C9
assign (resid 33 and name O6)
       (resid 9 and name N4)
       2.91 0.1 0.1
assign (resid 33 and name N1)
       (resid 9 and name N3)
       2.95 0.1 0.1
assign (resid 33 and name N2)
       (resid 9 and name O2)
       2.86 0.1 0.1

! C34-G8
assign (resid 34 and name N4)
       (resid 8 and name O6)
       2.91 0.1 0.1
assign (resid 34 and name N3)
       (resid 8 and name N1)
       2.95 0.1 0.1
assign (resid 34 and name O2)
       (resid 8 and name N2)
       2.86 0.1 0.1

set message=on end


set message=off end

! H2O restraints

! basepair C2-G18 
assign (resid 18 and name H1)
       (resid 3 and name H1)
       5.0 1.0 1.0

assign (resid 18 and name H1)
       (resid 2 and name N4)
       3.0 1.0 1.0

assign (resid 18 and name H1)
       (resid 17 and name N4)
       4.4 1.0 1.0

assign (resid 18 and name H1)
       (resid 19 and name H1')
       5.0 1.0 1.0

assign (resid 18 and name H1)
       (resid 3 and name H1')
       4.0 1.0 1.0 

assign (resid 18 and name H1)
       (resid 2 and name H5)
       4.0 1.0 1.0


! basepair G3-C17

assign (resid 3 and name H1)
       (resid 4 and name H1)
       5.0 1.0 1.0

assign (resid 3 and name H1)
       (resid 17 and name H5)
       4.0 1.0 1.0

assign (resid 3 and name H1)
       (resid 18 and name H1')
       4.0 1.0 1.0

assign (resid 3 and name H1)
       (resid 4 and name H1')
       5.0 1.0 1.0

assign (resid 3 and name H1)
       (resid 17 and name N4)
       3.0 1.0 1.0

assign (resid 3 and name H1)
       (resid 2 and name N4)
       5.0 1.0 1.0

assign (resid 3 and name H1)
       (resid 16 and name N4)
       5.0 1.0 1.0


! basepair G4-C16
assign (resid 4 and name H1)
       (resid 15 and name H1)
       5.0 1.0 1.0

assign (resid 4 and name H1)
       (resid 16 and name H5)
       4.0 1.0 1.0

assign (resid 4 and name H1)
       (resid 17 and name H5)
       4.0 1.0 1.0

assign (resid 4 and name H1)
       (resid 16 and name N4)
       3.0 1.0 1.0

assign (resid 4 and name H1)
       (resid 17 and name N4)
       5.0 1.0 1.0

assign (resid 4 and name H1)
       (resid 5 and name N4) 
       4.4 1.0 1.0

assign (resid 26 and name H2)
       (resid 4 and name N2)
       4.4 1.0 1.0


! basepair C5-G15   
assign (resid 15 and name H1)
       (resid 14 and name H1)
       5.0 1.0 1.0

assign (resid 15 and name H1)
       (resid 5 and name H5)
       4.0 1.0 1.0

assign (resid 15 and name H1)
       (resid 6 and name H5)
       4.0 1.0 1.0

assign (resid 15 and name H1)
       (resid 5 and name N4)
       3.0 1.0 1.0

assign (resid 15 and name H1)
       (resid 16 and name N4)
       4.4 1.0 1.0


! basepair U29-A13
assign (resid 29 and name H3)
       (resid 13 and name H2)
       3.0 1.0 1.0


! basepair G30-C12
assign (resid 30 and name H1)
       (resid 31 and name H1)
       4.0 1.0 1.0

assign (resid 30 and name H1)
       (resid 12 and name N4) 
       3.0 1.0 1.0

assign (resid 30 and name H1)
       (resid 11 and name N4) 
       5.0 1.0 1.0

assign (resid 30 and name H1)
       (resid 13 and name H2)
       5.0 1.0 1.0

assign (resid 30 and name H1)
       (resid 12 and name H5)
       4.0 1.0 1.0

assign (resid 30 and name H1)
       (resid 29 and name H5)
       4.0 1.0 1.0


! basepair G31-C11
assign (resid 31 and name H1)
       (resid 10 and name H3)
       4.0 1.0 1.0

assign (resid 31 and name H1)
       (resid 11 and name N4)
       3.0 1.0 1.0

assign (resid 31 and name H1)
       (resid 12 and name N4) 
       4.4 1.0 1.0

assign (resid 31 and name H1)
       (resid 32 and name H2)
       4.0 1.0 1.0

assign (resid 31 and name H1)
       (resid 11 and name H5)
       4.0 1.0 1.0

assign (resid 31 and name H1)
       (resid 12 and name H5)
       4.0 1.0 1.0 


! basepair A32-U10
assign (resid 10 and name H3)
       (resid 33 and name H1)
       4.0 1.0 1.0

assign (resid 10 and name H3)
       (resid 32 and name H2)
       2.4 0.6 0.6

assign (resid 10 and name H3)
       (resid 11 and name H5) 
       4.0 1.0 1.0

assign (resid 10 and name H3)
       (resid 9 and name N4)
       4.4 1.0 1.0

assign (resid 10 and name H3)
       (resid 11 and name N4)
       4.4 1.0 1.0


! basepair G33-C9
assign (resid 33 and name H1)
       (resid 8 and name H1)
       4.0 1.0 1.0

assign (resid 33 and name H1)
       (resid 9 and name H5)
       4.0 1.0 1.0

assign (resid 33 and name H1)
       (resid 10 and name H5)
       4.0 1.0 1.0

assign (resid 33 and name H1)
       (resid 32 and name H2)
       5.0 1.0 1.0

assign (resid 33 and name H1)
       (resid 9 and name N4)
       2.4 0.6 0.6


! basepair C34-G8
assign (resid 8 and name H1)
       (resid 34 and name N4)
       3.0 1.0 1.0

assign (resid 8 and name H1)
       (resid 9 and name N4)
       4.4 1.0 1.0

assign (resid 8 and name H1)
       (resid 35 and name H1')
       4.0 1.0 1.0

assign (resid 8 and name H1)
       (resid 9 and name H1')
       4.0 1.0 1.0

assign (resid 8 and name H1)
       (resid 34 and name H5)
       4.0 1.0 1.0

assign (resid 8 and name H1)
       (resid 35 and name H2)
       4.0 1.0 1.0


set message=on end


set message=off end

! non-NOEs, short distances found after structure calc.
! that are absent in the spectra

assign (resid 4  and name N2)
       (resid 25 and name H2)
       7.0 1.0 90.0

assign (resid 5  and name H1')
       (resid 25 and name H2)
       6.0 1.0 90.0

assign (resid 5  and name H1')
       (resid 29 and name H5)
       6.0 1.0 90.0

assign (resid 6 and name H2')
       (resid 7 and name H8)
       6.0 1.0 90.0

assign (resid 6 and name H3')
       (resid 7 and name H8)
       6.0 1.0 90.0

assign (resid 6 and name H1')
       (resid 27 and name H1')
       6.0 1.0 90.0

assign (resid 6 and name H1')
       (resid 27 and name H2')
       6.0 1.0 90.0

assign (resid 6 and name H1')
       (resid 28 and name H1')
       6.0 1.0 90.0

assign (resid 6 and name H1')
       (resid 28 and name H2')
       6.0 1.0 90.0

assign (resid 6 and name H1')
       (resid 28 and name H3')
       6.0 1.0 90.0

assign (resid 6 and name H1')
       (resid 29 and name H6)
       6.0 1.0 90.0

assign (resid 6 and name H1')
       (resid 29 and name H5)
       6.0 1.0 90.0

assign (resid 7 and name H4')
       (resid 27 and name H5)
       6.0 1.0 90.0

assign (resid 7 and name H2')
       (resid 8 and name H8)
       6.0 1.0 90.0

assign (resid 7 and name H3')
       (resid 8 and name H8)
       6.0 1.0 90.0

assign (resid 7 and name H2')
       (resid 9 and name H5)
       6.0 1.0 90.0

assign (resid 7 and name H3')
       (resid 9 and name H5)
       6.0 1.0 90.0

assign (resid 7 and name H2')
       (resid 9 and name H6)
       6.0 1.0 90.0

assign (resid 7 and name H3')
       (resid 9 and name H6)
       6.0 1.0 90.0

assign (resid 7 and name H2)
       (resid 29 and name H5'1)
       5.0 1.0 90.0

assign (resid 7 and name H2)
       (resid 29 and name H5'2)
       5.0 1.0 90.0

assign (resid 15 and name H1')
       (resid 27 and name H1')
       6.0 1.0 90.0

assign (resid 15 and name H1')
       (resid 27 and name H2')
       6.0 1.0 90.0

assign (resid 15 and name H1')
       (resid 28 and name H2)
       6.0 1.0 90.0

assign (resid 15 and name H1')
       (resid 28 and name H8)
       6.0 1.0 90.0

assign (resid 16 and name H1')
       (resid 25 and name H2)
       6.0 1.0 90.0

assign (resid 20 and name H1')
       (resid 21 and name H2)
       6.0 1.0 90.0

assign (resid 20 and name H1')
       (resid 21 and name H3')
       6.0 1.0 90.0

assign (resid 21 and name H4')
       (resid 22 and name H8)
       6.0 1.0 90.0

assign (resid 22 and name H8)
       (resid 22 and name H5'1)        
       4.5 1.0 90.0
OR     (resid 22 and name H8)
       (resid 22 and name H5'2)

assign (resid 22 and name H8)
       (resid 23 and name H2')        
       6.0 1.0 90.0

assign (resid 22 and name H2')
       (resid 23 and name H2')        
       6.0 1.0 90.0

assign (resid 22 and name H4')
       (resid 23 and name H8)        
       6.0 1.0 90.0

assign (resid 23 and name H2')
       (resid 24 and name H6)
       6.0 1.0 90.0

assign (resid 26 and name H3')
       (resid 27 and name H1')
       5.5 1.0 90.0

assign (resid 27 and name H5)
       (resid 28 and name H8)
       6.0 1.0 90.0

assign (resid 27 and name H6)
       (resid 28 and name H2')
       5.5 1.0 90.0

assign (resid 27 and name H6)
       (resid 28 and name H3')
       6.0 1.0 90.0

assign (resid 27 and name H5)
       (resid 28 and name H2')
       6.0 1.0 90.0

assign (resid 28 and name H2')
       (resid 29 and name H6)
       5.5 1.0 90.0

assign (resid 28 and name H3')
       (resid 29 and name H6)
       5.5 1.0 90.0

assign (resid 28 and name H2')
       (resid 29 and name H6)
       5.5 1.0 90.0

assign (resid 28 and name H3')
       (resid 29 and name H6)
       6.0 1.0 90.0

assign (resid 28 and name H2)
       (resid 29 and name H5)
       6.0 1.0 90.0

assign (resid 28 and name H2)
       (resid 29 and name H6)
       6.0 1.0 90.0

assign (resid 36 and name H2')
       (resid 35 and name H1')
       6.0 1.0 90.0

assign (resid 36 and name H5)
       (resid 35 and name H4')
       6.0 1.0 90.0

assign (resid 36 and name H6  )
       (resid 35 and name H4')
       6.0 1.0 90.0

set message=on end