Interaction between Poly [ADP-ribose] polymerase 1 (4dqy_D) and Poly [ADP-ribose] polymerase 1 (4dqy_E)
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_E
Title: Poly [ADP-ribose] polymerase 1
Source organism: Homo sapiens
Number of residues: 160 (24 missing in structure)
Structural properties
Hetero-dimer interface properties
Buried interface area: 433.88 Å2
Number of inter-residue contacts at the interface: 32
Number of H-bonds: 6
Number of salt bridges: 2
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 10 30 R 7.4 12.3 % 2 13 33 Y 17.8 28.1 % 3 15 35 K 19.3 13.3 % 4 30 50 K 12.5 9.6 % 5 68 88 D 0.5 0.6 % 6 72 92 D 29.4 51.0 % 7 73 93 G 5.6 63.8 % 8 75 95 S 45.5 54.1 % 9 76 96 E 72.6 56.5 % 10 77 97 L 12.4 79.3 % 11 78 98 R 70.4 44.7 % 12 79 99 W 124.3 72.3 % 13 82 102 Q 7.4 29.5 % 14 86 106 K 8.7 8.5 %
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Interface residues in 4dqy_E
No. Residue no. in structure Residue no. in sequence Residue name Buried ASA, Å2 Buried ASA, % 1 235 21 E 37.0 28.2 % 2 238 24 L 19.6 37.4 % 3 239 25 K 44.3 37.1 % 4 242 28 N 53.2 69.4 % 5 243 29 D 7.0 12.7 % 6 246 32 W 88.0 71.2 % 7 250 36 D 20.1 26.8 % 8 275 61 G 1.2 3.0 % 9 276 62 E 12.5 12.2 % 10 277 63 S 18.1 25.9 % 11 281 67 D 13.0 19.9 % 12 304 90 F 20.4 30.7 % 13 305 91 K 35.1 27.3 % 14 306 92 S 51.2 66.2 % 15 358 144 P 12.8 16.8 % 16 359 145 P 0.5 0.3 %
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. in chain B sequence | Residue in chain B | Contact area, Å2 | Contact type |
---|---|---|---|---|---|---|---|---|
1 | 10 | 30 | R | 305 | 91 | K | 7.3 | |
2 | 10 | 30 | R | 306 | 92 | S | <0.1 | |
3 | 13 | 33 | Y | 246 | 32 | W | 17.8 | |
4 | 15 | 35 | K | 275 | 61 | G | 1.2 | |
5 | 15 | 35 | K | 277 | 63 | S | 18.1 | |
6 | 30 | 50 | K | 276 | 62 | E | 12.5 | |
7 | 68 | 88 | D | 359 | 145 | P | 0.5 | |
8 | 72 | 92 | D | 305 | 91 | K | 20.8 | Salt bridge |
9 | 72 | 92 | D | 306 | 92 | S | 8.6 | |
10 | 73 | 93 | G | 306 | 92 | S | 5.6 | |
11 | 75 | 95 | S | 242 | 28 | N | 9.4 | |
12 | 75 | 95 | S | 304 | 90 | F | 4.4 | |
13 | 75 | 95 | S | 306 | 92 | S | 18.9 | H-bond |
14 | 75 | 95 | S | 358 | 144 | P | 12.8 | |
15 | 76 | 96 | E | 242 | 28 | N | 1.5 | |
16 | 76 | 96 | E | 246 | 32 | W | 17.2 | H-bond |
17 | 76 | 96 | E | 281 | 67 | D | 13.0 | |
18 | 76 | 96 | E | 304 | 90 | F | 16.0 | |
19 | 76 | 96 | E | 305 | 91 | K | 7.0 | |
20 | 76 | 96 | E | 306 | 92 | S | 18.0 | H-bond |
21 | 77 | 97 | L | 242 | 28 | N | 7.0 | H-bond |
22 | 77 | 97 | L | 246 | 32 | W | 5.4 | |
23 | 78 | 98 | R | 242 | 28 | N | 2.9 | |
24 | 78 | 98 | R | 246 | 32 | W | 47.5 | |
25 | 78 | 98 | R | 250 | 36 | D | 20.1 | H-bond, Salt bridge |
26 | 79 | 99 | W | 235 | 21 | E | 28.4 | |
27 | 79 | 99 | W | 238 | 24 | L | 19.6 | |
28 | 79 | 99 | W | 239 | 25 | K | 44.3 | |
29 | 79 | 99 | W | 242 | 28 | N | 25.0 | H-bond |
30 | 79 | 99 | W | 243 | 29 | D | 7.0 | |
31 | 82 | 102 | Q | 242 | 28 | N | 7.4 | |
32 | 86 | 106 | K | 235 | 21 | E | 8.7 |
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% (14/14).
Identities = 43% (6/14), Positive = 64% (9/14), Gaps = 0% (0/14).
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