Interaction between Cytochrome c iso-1 (2b10_D) and Cytochrome c peroxidase, mitochondrial (2b10_C)
PDB and SCOP data
PDB ID: 2b10 (all binary interactions in this PDB entry)
Title: Crystal Structure of the Protein-Protein Complex between F82S cytochrome c and cytochrome c peroxidase
Release date: 2005-10-25
Resolution: 2.8 Å
Structural properties
Hetero-dimer interface properties
Buried interface area: 583.15 Å2
Number of inter-residue contacts at the interface: 49
Number of H-bonds: 2
Number of salt bridges: 2
Experimental structure
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Pairwise interaction
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Biological assembly
Heteromer, 2 proteins, 2 domains.
Interface structure modeling
Residues at the interaction interface
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Interface residues in 2b10_D
No. Residue no. in structure Residue no. in sequence Residue name Buried ASA, Å2 Buried ASA, % 1 5 10 K 20.7 21.8 % 2 8 13 T 5.6 9.3 % 3 9 14 L 22.0 98.9 % 4 11 16 K 5.4 4.6 % 5 12 17 T 52.1 68.9 % 6 13 18 R 67.7 71.6 % 7 16 21 Q 46.2 46.4 % 8 17 22 C 9.4 100.0 % 9 28 33 V 23.8 27.9 % 10 70 75 N 24.4 50.5 % 11 72 77 K 36.6 32.1 % 12 73 78 K 28.0 17.4 % 13 81 86 A 46.2 78.6 % 14 82 87 S 21.0 70.5 % 15 83 88 G 30.3 53.4 % 16 85 90 L 1.1 14.9 % 17 86 91 K 61.1 49.1 % 18 87 92 K 58.6 44.2 % 19 90 95 D 22.7 79.6 %
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Interface residues in 2b10_C
No. Residue no. in structure Residue no. in sequence Residue name Buried ASA, Å2 Buried ASA, % 1 31 31 R 53.7 48.9 % 2 32 32 E 30.3 26.6 % 3 34 34 D 48.4 71.4 % 4 35 35 E 16.9 14.4 % 5 38 38 N 38.3 27.3 % 6 39 39 Y 99.9 78.9 % 7 120 120 Q 48.0 42.2 % 8 193 193 A 42.9 96.2 % 9 194 194 A 14.4 85.8 % 10 195 195 N 12.9 37.8 % 11 196 196 N 34.7 56.2 % 12 197 197 V 39.6 97.9 % 13 199 199 T 20.5 55.6 % 14 201 201 E 1.6 5.8 % 15 227 227 S 0.4 0.7 % 16 229 229 Y 23.4 62.3 % 17 290 290 E 51.3 37.9 % 18 294 294 L 6.0 5.8 %
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 | 5 | 10 | K | 35 | 35 | E | 9.1 | |
2 | 5 | 10 | K | 39 | 39 | Y | 11.6 | |
3 | 8 | 13 | T | 39 | 39 | Y | 5.6 | |
4 | 9 | 14 | L | 39 | 39 | Y | 22.0 | |
5 | 11 | 16 | K | 38 | 38 | N | 5.4 | |
6 | 12 | 17 | T | 38 | 38 | N | 32.9 | |
7 | 12 | 17 | T | 39 | 39 | Y | 17.5 | |
8 | 12 | 17 | T | 195 | 195 | N | 1.8 | |
9 | 13 | 18 | R | 34 | 34 | D | 11.6 | |
10 | 13 | 18 | R | 39 | 39 | Y | 33.9 | |
11 | 13 | 18 | R | 196 | 196 | N | 22.2 | |
12 | 16 | 21 | Q | 193 | 193 | A | 26.7 | |
13 | 16 | 21 | Q | 195 | 195 | N | 11.1 | |
14 | 16 | 21 | Q | 227 | 227 | S | 0.4 | |
15 | 16 | 21 | Q | 229 | 229 | Y | 8.0 | |
16 | 17 | 22 | C | 193 | 193 | A | 9.4 | |
17 | 28 | 33 | V | 193 | 193 | A | 6.9 | |
18 | 28 | 33 | V | 201 | 201 | E | 1.6 | |
19 | 28 | 33 | V | 229 | 229 | Y | 15.4 | |
20 | 70 | 75 | N | 120 | 120 | Q | 0.9 | |
21 | 70 | 75 | N | 290 | 290 | E | 22.0 | H-bond |
22 | 70 | 75 | N | 294 | 294 | L | 1.6 | |
23 | 72 | 77 | K | 120 | 120 | Q | 24.7 | |
24 | 72 | 77 | K | 197 | 197 | V | 4.3 | |
25 | 72 | 77 | K | 199 | 199 | T | 7.6 | |
26 | 73 | 78 | K | 290 | 290 | E | 28.0 | Salt bridge |
27 | 81 | 86 | A | 194 | 194 | A | 14.4 | |
28 | 81 | 86 | A | 196 | 196 | N | 0.1 | |
29 | 81 | 86 | A | 197 | 197 | V | 18.8 | |
30 | 81 | 86 | A | 199 | 199 | T | 12.9 | |
31 | 82 | 87 | S | 120 | 120 | Q | 9.9 | |
32 | 82 | 87 | S | 196 | 196 | N | 1.7 | |
33 | 82 | 87 | S | 197 | 197 | V | 9.4 | |
34 | 83 | 88 | G | 120 | 120 | Q | 12.5 | |
35 | 83 | 88 | G | 196 | 196 | N | 10.7 | |
36 | 83 | 88 | G | 197 | 197 | V | 7.1 | |
37 | 85 | 90 | L | 34 | 34 | D | 1.0 | |
38 | 85 | 90 | L | 39 | 39 | Y | <0.1 | |
39 | 86 | 91 | K | 31 | 31 | R | 48.6 | |
40 | 86 | 91 | K | 34 | 34 | D | 6.8 | |
41 | 86 | 91 | K | 290 | 290 | E | 1.3 | |
42 | 86 | 91 | K | 294 | 294 | L | 4.4 | |
43 | 87 | 92 | K | 31 | 31 | R | 5.1 | |
44 | 87 | 92 | K | 32 | 32 | E | 30.3 | H-bond |
45 | 87 | 92 | K | 34 | 34 | D | 18.0 | Salt bridge |
46 | 87 | 92 | K | 35 | 35 | E | 5.2 | |
47 | 90 | 95 | D | 34 | 34 | D | 11.0 | |
48 | 90 | 95 | D | 35 | 35 | E | 2.6 | |
49 | 90 | 95 | D | 39 | 39 | Y | 9.2 |
Ligands at the interaction interface
Chain | Protein | Residue no. | Ligand name | Contact area with same domain | Contact area with other domain |
---|---|---|---|---|---|
A | 2b10_D | 909 | HEM | 641.0 | 25.8 |
Sequence alignments
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Query protein: sp|P00044|CYC1_YEAST Cytochrome c iso-1 OS=Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GN=CYC1 PE=1 SV=2
Result domain: 2b10_D; Cytochrome c iso-1
Alignment data:
Expectation value = 2.08e-76, Score = 223 bits (567),
Identities = 99% (107/108), Positive = 99% (107/108), Gaps = 0% (0/108).
Interface alignment data:
Interface residues in alignment: 100% (19/19).
Identities = 95% (18/19), Positive = 95% (18/19), Gaps = 0% (0/19).
Query: 2 TEFKAGSAKKGATLFKTRCLQCHTVEKGGPHKVGPNLHGIFGRHSGQAEGYSYTDANIKK 61
TEFKAGSAKKGATLFKTRCLQCHTVEKGGPHKVGPNLHGIFGRHSGQAEGYSYTDANIKK
2b10_D: 1 TEFKAGSAKKGATLFKTRCLQCHTVEKGGPHKVGPNLHGIFGRHSGQAEGYSYTDANIKK 60
dssp: ---------HHHHHHHHH-------------------------E----------HHHHH-
Query: 62 NVLWDENNMSEYLTNPKKYIPGTKMAFGGLKKEKDRNDLITYLKKACE 109
NVLWDENNMSEYLTNPKKYIPGTKMA GGLKKEKDRNDLITYLKKACE
2b10_D: 61 NVLWDENNMSEYLTNPKKYIPGTKMASGGLKKEKDRNDLITYLKKACE 108
dssp: --E----HHHHHHH-HHHH-------------HHHHHHHHHHHHHH--
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Query protein: sp|P00431|CCPR_YEAST Cytochrome c peroxidase, mitochondrial OS=Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GN=CCP1 PE=1 SV=2
Result domain: 2b10_C; Cytochrome c peroxidase, mitochondrial
Alignment data:
Expectation value = 0, Score = 616 bits (1588),
Identities = 100% (294/294), Positive = 100% (294/294), Gaps = 0% (0/294).
Interface alignment data:
Interface residues in alignment: 100% (18/18).
Identities = 100% (18/18), Positive = 100% (18/18), Gaps = 0% (0/18).
Query: 68 TTPLVHVASVEKGRSYEDFQKVYNAIALKLREDDEYDNYIGYGPVLVRLAWHTSGTWDKH 127
TTPLVHVASVEKGRSYEDFQKVYNAIALKLREDDEYDNYIGYGPVLVRLAWHTSGTWDKH
2b10_C: 1 TTPLVHVASVEKGRSYEDFQKVYNAIALKLREDDEYDNYIGYGPVLVRLAWHTSGTWDKH 60
dssp: ------E--------HHHHHHHHHHHHHHHHH---HHHH---HHHHHHHHHHHH------
Query: 128 DNTGGSYGGTYRFKKEFNDPSNAGLQNGFKFLEPIHKEFPWISSGDLFSLGGVTAVQEMQ 187
DNTGGSYGGTYRFKKEFNDPSNAGLQNGFKFLEPIHKEFPWISSGDLFSLGGVTAVQEMQ
2b10_C: 61 DNTGGSYGGTYRFKKEFNDPSNAGLQNGFKFLEPIHKEFPWISSGDLFSLGGVTAVQEMQ 120
dssp: ---------HHH-HHHH--HHH---HHHHHHHHHHHHH-----HHHHHHHHHHHHHHH--
Query: 188 GPKIPWRCGRVDTPEDTTPDNGRLPDADKDADYVRTFFQRLNMNDREVVALMGAHALGKT 247
GPKIPWRCGRVDTPEDTTPDNGRLPDADKDADYVRTFFQRLNMNDREVVALMGAHALGKT
2b10_C: 121 GPKIPWRCGRVDTPEDTTPDNGRLPDADKDADYVRTFFQRLNMNDREVVALMGAHALGKT 180
dssp: -----E--------HHH-------------HHHHHHH-------HHHHHHHHHHHH--EE
Query: 248 HLKNSGYEGPWGAANNVFTNEFYLNLLNEDWKLEKNDANNEQWDSKSGYMMLPTDYSLIQ 307
HLKNSGYEGPWGAANNVFTNEFYLNLLNEDWKLEKNDANNEQWDSKSGYMMLPTDYSLIQ
2b10_C: 181 HLKNSGYEGPWGAANNVFTNEFYLNLLNEDWKLEKNDANNEQWDSKSGYMMLPTDYSLIQ 240
dssp: -HHHH---EE----------HHHHHHHH---EEEE-----EEEE-----EE-HHHHHHHH
Query: 308 DPKYLSIVKEYANDQDKFFKDFSKAFEKLLENGITFPKDAPSPFIFKTLEEQGL 361
DPKYLSIVKEYANDQDKFFKDFSKAFEKLLENGITFPKDAPSPFIFKTLEEQGL
2b10_C: 241 DPKYLSIVKEYANDQDKFFKDFSKAFEKLLENGITFPKDAPSPFIFKTLEEQGL 294
dssp: -HHHHHHHHHHHH-HHHHHHHHHHHHHHHH----E--------E-----HHH--