Interaction between Cytochrome c iso-1 (5cih_D) and Cytochrome c peroxidase, mitochondrial (5cih_C)
PDB and SCOP data
PDB ID: 5cih (all binary interactions in this PDB entry)
Title: Complex of yeast cytochrome c peroxidase (W191Y) with iso-1 cytochrome c
Release date: 2016-08-03
Resolution: 2.6 Å
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Chain A: 5cih_D
Title: Cytochrome c iso-1
Source organism: Saccharomyces cerevisiae S288C
Number of residues: 103
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Chain B: 5cih_C
Title: Cytochrome c peroxidase, mitochondrial
Source organism: Saccharomyces cerevisiae S288C
Number of residues: 294
Structural properties
Hetero-dimer interface properties
Buried interface area: 580.18 Å2
Number of inter-residue contacts at the interface: 54
Number of H-bonds: 1
Number of salt bridges: 3
Experimental structure
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Pairwise interaction
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Biological assembly
Heteromer, 2 proteins.
Interface structure modeling
Residues at the interaction interface
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Interface residues in 5cih_D
No. Residue no. in structure Residue no. in sequence Residue name Buried ASA, Å2 Buried ASA, % 1 5 5 K 21.1 23.1 % 2 8 8 T 12.9 19.1 % 3 9 9 L 20.7 85.2 % 4 12 12 T 43.8 50.4 % 5 13 13 R 50.4 65.5 % 6 16 16 Q 41.5 47.4 % 7 17 17 C 6.4 100.0 % 8 27 27 K 34.9 34.8 % 9 28 28 V 27.3 42.8 % 10 70 70 N 18.5 32.8 % 11 71 71 P 4.1 29.1 % 12 72 72 K 1.8 1.4 % 13 73 73 K 31.1 20.7 % 14 79 79 K 1.1 1.0 % 15 81 81 A 50.3 79.0 % 16 82 82 F 28.1 87.3 % 17 83 83 G 32.5 48.2 % 18 86 86 K 80.6 52.7 % 19 87 87 K 56.8 47.1 % 20 90 90 D 16.4 57.5 %
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Interface residues in 5cih_C
No. Residue no. in structure Residue no. in sequence Residue name Buried ASA, Å2 Buried ASA, % 1 28 28 L 7.5 9.1 % 2 31 31 R 53.5 42.5 % 3 32 32 E 41.8 40.1 % 4 33 33 D 0.9 1.4 % 5 34 34 D 45.5 61.0 % 6 35 35 E 16.1 12.3 % 7 38 38 N 26.3 19.3 % 8 39 39 Y 94.3 67.7 % 9 120 120 Q 35.9 29.6 % 10 193 193 A 35.0 93.5 % 11 194 194 A 18.5 87.7 % 12 195 195 N 4.3 17.1 % 13 196 196 N 36.4 58.4 % 14 197 197 V 36.7 93.1 % 15 199 199 T 16.0 40.0 % 16 201 201 E 5.9 19.4 % 17 226 226 K 26.0 18.6 % 18 227 227 S 15.3 21.2 % 19 229 229 Y 22.6 71.7 % 20 290 290 E 41.7 29.6 %
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 | 5 | K | 35 | 35 | E | 7.3 | |
2 | 5 | 5 | K | 39 | 39 | Y | 13.7 | |
3 | 8 | 8 | T | 39 | 39 | Y | 12.9 | |
4 | 9 | 9 | L | 39 | 39 | Y | 20.7 | |
5 | 12 | 12 | T | 38 | 38 | N | 26.3 | |
6 | 12 | 12 | T | 39 | 39 | Y | 17.1 | |
7 | 12 | 12 | T | 195 | 195 | N | 0.3 | |
8 | 13 | 13 | R | 34 | 34 | D | 7.7 | |
9 | 13 | 13 | R | 38 | 38 | N | <0.1 | |
10 | 13 | 13 | R | 39 | 39 | Y | 26.4 | |
11 | 13 | 13 | R | 196 | 196 | N | 16.3 | |
12 | 16 | 16 | Q | 193 | 193 | A | 20.5 | |
13 | 16 | 16 | Q | 194 | 194 | A | 1.3 | |
14 | 16 | 16 | Q | 195 | 195 | N | 4.0 | |
15 | 16 | 16 | Q | 227 | 227 | S | 4.3 | |
16 | 16 | 16 | Q | 229 | 229 | Y | 11.4 | |
17 | 17 | 17 | C | 193 | 193 | A | 6.4 | |
18 | 17 | 17 | C | 229 | 229 | Y | <0.1 | |
19 | 27 | 27 | K | 226 | 226 | K | 22.9 | |
20 | 27 | 27 | K | 227 | 227 | S | 11.0 | |
21 | 27 | 27 | K | 229 | 229 | Y | 1.0 | |
22 | 28 | 28 | V | 193 | 193 | A | 8.0 | |
23 | 28 | 28 | V | 201 | 201 | E | 5.9 | |
24 | 28 | 28 | V | 226 | 226 | K | 3.2 | |
25 | 28 | 28 | V | 229 | 229 | Y | 10.2 | |
26 | 70 | 70 | N | 120 | 120 | Q | 8.0 | |
27 | 70 | 70 | N | 290 | 290 | E | 10.5 | |
28 | 71 | 71 | P | 120 | 120 | Q | 4.1 | |
29 | 72 | 72 | K | 120 | 120 | Q | 1.8 | |
30 | 73 | 73 | K | 290 | 290 | E | 31.1 | Salt bridge |
31 | 79 | 79 | K | 199 | 199 | T | 1.1 | |
32 | 81 | 81 | A | 120 | 120 | Q | 0.9 | |
33 | 81 | 81 | A | 194 | 194 | A | 17.2 | |
34 | 81 | 81 | A | 196 | 196 | N | 0.1 | |
35 | 81 | 81 | A | 197 | 197 | V | 17.1 | |
36 | 81 | 81 | A | 199 | 199 | T | 14.9 | |
37 | 82 | 82 | F | 120 | 120 | Q | 11.4 | |
38 | 82 | 82 | F | 196 | 196 | N | 5.8 | |
39 | 82 | 82 | F | 197 | 197 | V | 10.9 | |
40 | 83 | 83 | G | 120 | 120 | Q | 9.7 | |
41 | 83 | 83 | G | 196 | 196 | N | 14.1 | |
42 | 83 | 83 | G | 197 | 197 | V | 8.6 | |
43 | 86 | 86 | K | 28 | 28 | L | 7.5 | |
44 | 86 | 86 | K | 31 | 31 | R | 49.8 | |
45 | 86 | 86 | K | 32 | 32 | E | 19.6 | Salt bridge |
46 | 86 | 86 | K | 34 | 34 | D | 3.6 | |
47 | 87 | 87 | K | 31 | 31 | R | 3.6 | |
48 | 87 | 87 | K | 32 | 32 | E | 22.2 | H-bond |
49 | 87 | 87 | K | 33 | 33 | D | 0.9 | |
50 | 87 | 87 | K | 34 | 34 | D | 25.1 | Salt bridge |
51 | 87 | 87 | K | 35 | 35 | E | 5.0 | |
52 | 90 | 90 | D | 34 | 34 | D | 9.1 | |
53 | 90 | 90 | D | 35 | 35 | E | 3.8 | |
54 | 90 | 90 | D | 39 | 39 | Y | 3.5 |
Ligands at the interaction interface
Chain | Protein | Residue no. | Ligand name | Contact area with same domain | Contact area with other domain |
---|---|---|---|---|---|
A | 5cih_D | 201 | HEM | 632.1 | 27.5 |
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: 5cih_D; Cytochrome c iso-1
Alignment data:
Expectation value = 6.80e-74, Score = 216 bits (550),
Identities = 100% (103/103), Positive = 100% (103/103), Gaps = 0% (0/103).
Interface alignment data:
Interface residues in alignment: 100% (20/20).
Identities = 100% (20/20), Positive = 100% (20/20), Gaps = 0% (0/20).
Query: 7 GSAKKGATLFKTRCLQCHTVEKGGPHKVGPNLHGIFGRHSGQAEGYSYTDANIKKNVLWD 66
GSAKKGATLFKTRCLQCHTVEKGGPHKVGPNLHGIFGRHSGQAEGYSYTDANIKKNVLWD
5cih_D: 1 GSAKKGATLFKTRCLQCHTVEKGGPHKVGPNLHGIFGRHSGQAEGYSYTDANIKKNVLWD 60
dssp: --HHHHHHHHHHH-----------------------------------------------
Query: 67 ENNMSEYLTNPKKYIPGTKMAFGGLKKEKDRNDLITYLKKACE 109
ENNMSEYLTNPKKYIPGTKMAFGGLKKEKDRNDLITYLKKACE
5cih_D: 61 ENNMSEYLTNPKKYIPGTKMAFGGLKKEKDRNDLITYLKKACE 103
dssp: HHHHHHHH-------------------HHHHHHHHHHHHH---
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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: 5cih_C; Cytochrome c peroxidase, mitochondrial
Alignment data:
Expectation value = 0, Score = 609 bits (1568),
Identities = 99% (291/294), Positive = 99% (292/294), Gaps = 0% (0/294).
Interface alignment data:
Interface residues in alignment: 100% (20/20).
Identities = 100% (20/20), Positive = 100% (20/20), Gaps = 0% (0/20).
Query: 68 TTPLVHVASVEKGRSYEDFQKVYNAIALKLREDDEYDNYIGYGPVLVRLAWHTSGTWDKH 127
TTPLVHVASVEKGRSYEDFQKVYNAIALKLREDDEYDNYIGYGPVLVRLAWH SGTWDKH
5cih_C: 1 TTPLVHVASVEKGRSYEDFQKVYNAIALKLREDDEYDNYIGYGPVLVRLAWHISGTWDKH 60
dssp: ------E--------HHHHHHHHHHHHHHHHH----------HHHHHHHHHHHH---E--
Query: 128 DNTGGSYGGTYRFKKEFNDPSNAGLQNGFKFLEPIHKEFPWISSGDLFSLGGVTAVQEMQ 187
DNTGGSYGGTYRFKKEFNDPSNAGLQNGFKFLEPIHKEFPWISSGDLFSLGGVTAVQEMQ
5cih_C: 61 DNTGGSYGGTYRFKKEFNDPSNAGLQNGFKFLEPIHKEFPWISSGDLFSLGGVTAVQEMQ 120
dssp: --E------HHH-------HHH---HHHHHHHHHHHHH-----HHHHHHHHHHHHHHH--
Query: 188 GPKIPWRCGRVDTPEDTTPDNGRLPDADKDADYVRTFFQRLNMNDREVVALMGAHALGKT 247
GPKIPWRCGRVDTPEDTTPDNGRLPDADKDA YVRTFFQRLNMNDREVVALMGAHALGKT
5cih_C: 121 GPKIPWRCGRVDTPEDTTPDNGRLPDADKDAGYVRTFFQRLNMNDREVVALMGAHALGKT 180
dssp: -----E--------HHH-------------HHHHHHHHHH----HHHHHHHHHHHH--EE
Query: 248 HLKNSGYEGPWGAANNVFTNEFYLNLLNEDWKLEKNDANNEQWDSKSGYMMLPTDYSLIQ 307
HLKNSGYEGP+GAANNVFTNEFYLNLLNEDWKLEKNDANNEQWDSKSGYMMLPTDYSLIQ
5cih_C: 181 HLKNSGYEGPYGAANNVFTNEFYLNLLNEDWKLEKNDANNEQWDSKSGYMMLPTDYSLIQ 240
dssp: -HHHH---EE----------HHHHHHHH---EEEE-----EEEE------E-HHHH----
Query: 308 DPKYLSIVKEYANDQDKFFKDFSKAFEKLLENGITFPKDAPSPFIFKTLEEQGL 361
DPKYLSIVKEYANDQDKFFKDFSKAFEKLLENGITFPKDAPSPFIFKTLEEQGL
5cih_C: 241 DPKYLSIVKEYANDQDKFFKDFSKAFEKLLENGITFPKDAPSPFIFKTLEEQGL 294
dssp: -HHHHHHHHHHHH-HHHHHHHHHHHHHHHH----E--------E-----HHH--