Interaction between Poly [ADP-ribose] polymerase 1 (4dqy_D) and DNA (26-MER) (4dqy_M_N)
PDB and SCOP data
PDB ID: 4dqy (all binary interactions in this PDB entry)
Title: Structure of Human PARP-1 bound to a DNA double strand break
Release date: 2012-05-30
Resolution: 3.2 Å
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Chain A: 4dqy_D
Title: Poly [ADP-ribose] polymerase 1
Source organism: Homo sapiens
Number of residues: 116 (30 missing in structure)
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Chain B: 4dqy_M_N
Title: DNA (26-MER)
Number of residues: 52
Note: Residues of nucleic acid domain are renumbered to avoid repeating the same residue numbers from different PDB chains.
Structural properties
Hetero-dimer interface properties
Buried interface area: 445.81 Å2
Number of inter-residue contacts at the interface: 29
Number of H-bonds: 4
Experimental structure
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Pairwise interaction
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Biological assembly
Heteromer, 3 proteins, 1 nucleic acid.
Interface structure modeling
Residues at the interaction interface
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Interface residues in 4dqy_D
No. Residue no. in structure Residue no. in sequence Residue name Buried ASA, Å2 Buried ASA, % 1 12 32 E <0.1 0.5 % 2 15 35 K 51.4 34.7 % 3 16 36 S 27.8 69.4 % 4 18 38 R 104.1 54.8 % 5 19 39 A 36.5 98.1 % 6 20 40 S 23.6 35.8 % 7 22 42 K 20.7 20.6 % 8 34 54 R 17.4 99.9 % 9 41 61 S <0.1 0.6 % 10 43 63 M 18.4 10.4 % 11 44 64 F 68.6 65.2 % 12 47 67 K 0.1 0.1 % 13 48 68 V 34.5 85.7 % 14 49 69 P 16.2 33.4 % 15 50 70 H 0.6 1.4 % 16 51 71 W 25.7 71.7 %
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Interface residues in 4dqy_M_N
No. Residue no. in structure PDB residue no. Residue name Buried ASA, Å2 Buried ASA, % 1 23 23:M1 A 6.7 3.6 % 2 24 24:M1 G 85.7 43.0 % 3 25 25:M1 G 98.0 63.5 % 4 26 26:M1 C 129.6 48.3 % 5 27 1:N1 G 74.9 30.7 % 6 30 4:N1 T 2.8 1.4 % 7 31 5:N1 A 34.1 18.4 % 8 32 6:N1 C 14.0 8.1 %
Inter-residue contacts at the interaction interface
No. | Residue no. in chain A structure | Residue no. in chain A sequence | Residue in chain A | Residue no. in chain B structure | Residue no. of chain B in PDB | Residue in chain B | Contact area, Å2 | Contact type |
---|---|---|---|---|---|---|---|---|
1 | 12 | 32 | E | 25 | 25:M1 | G | <0.1 | |
2 | 15 | 35 | K | 24 | 24:M1 | G | 46.7 | |
3 | 15 | 35 | K | 25 | 25:M1 | G | 4.7 | |
4 | 16 | 36 | S | 24 | 24:M1 | G | 12.2 | H-bond |
5 | 16 | 36 | S | 25 | 25:M1 | G | 15.6 | H-bond |
6 | 18 | 38 | R | 23 | 23:M1 | A | 6.7 | |
7 | 18 | 38 | R | 24 | 24:M1 | G | 26.8 | |
8 | 18 | 38 | R | 25 | 25:M1 | G | 19.7 | |
9 | 18 | 38 | R | 30 | 4:N1 | T | 2.8 | |
10 | 18 | 38 | R | 31 | 5:N1 | A | 34.1 | |
11 | 18 | 38 | R | 32 | 6:N1 | C | 14.0 | |
12 | 19 | 39 | A | 25 | 25:M1 | G | 26.2 | |
13 | 19 | 39 | A | 26 | 26:M1 | C | 10.4 | |
14 | 20 | 40 | S | 26 | 26:M1 | C | 23.6 | H-bond |
15 | 22 | 42 | K | 26 | 26:M1 | C | 20.7 | |
16 | 34 | 54 | R | 25 | 25:M1 | G | 17.4 | H-bond |
17 | 41 | 61 | S | 26 | 26:M1 | C | <0.1 | |
18 | 41 | 61 | S | 27 | 1:N1 | G | <0.1 | |
19 | 43 | 63 | M | 26 | 26:M1 | C | 2.0 | |
20 | 43 | 63 | M | 27 | 1:N1 | G | 16.4 | |
21 | 44 | 64 | F | 26 | 26:M1 | C | 10.1 | |
22 | 44 | 64 | F | 27 | 1:N1 | G | 58.5 | |
23 | 47 | 67 | K | 26 | 26:M1 | C | 0.1 | |
24 | 48 | 68 | V | 26 | 26:M1 | C | 34.5 | |
25 | 49 | 69 | P | 25 | 25:M1 | G | 2.0 | |
26 | 49 | 69 | P | 26 | 26:M1 | C | 14.2 | |
27 | 50 | 70 | H | 26 | 26:M1 | C | 0.6 | |
28 | 51 | 71 | W | 25 | 25:M1 | G | 12.3 | |
29 | 51 | 71 | W | 26 | 26:M1 | C | 13.4 |
Sequence alignments
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Query protein: sp|P49916|DNLI3_HUMAN DNA ligase 3 OS=Homo sapiens GN=LIG3 PE=1 SV=2
Result domain: 4dqy_D; Poly [ADP-ribose] polymerase 1
Alignment data:
Expectation value = 3.15e-6, Score = 50 bits (118),
Identities = 31% (27/88), Positive = 53% (47/88), Gaps = 3% (3/88).
Interface alignment data:
Interface residues in alignment: 100% (16/16).
Identities = 31% (5/16), Positive = 50% (8/16), Gaps = 0% (0/16).
Query: 87 EMAEQRFCVDYAKRGTAGCKKCKEKIVKGVCRIGKVVPNPFSESGGDMKEWYHIKCMFEK 146
E +++ + V+YAK G A CKKC E I K R+ +V +P + G + WYH C ++
4dqy_D: 23 ESSDKLYRVEYAKSGRASCKKCSESIPKDSLRMAIMVQSPMFD--GKVPHWYHFSCFWKV 80
dssp: ---EEEEE------E------E-----EEEEEEEE----- -EEEEEEE--HHHH-
Query: 147 LERARATTKKIEDLTELEGWEELEDNEK 174
R +++ +EL W++ + +K
4dqy_D: 81 GHSIRHPDVEVDGFSELR-WDDQQKVKK 107
dssp: ------HHHHEE------ HHHHHHHHH