Analysis of interatomic Contacts of Structural Units in PDB entry:
4IHH


Contacts of Structural Units (CSU) are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332).
For CSU analysis of other PDB entry

This page provides analyses of contacts formed by:
For analysis of ligand-protein contacts, use: 3D structure can be seen in additional window with STING software for 4IHH entry

There are 5 chains in PDB entry 4IHH (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 HIS 0VAL 337
B
 SER 3VAL 337
C
 ALA 2ASN 338
D
 SER 3VAL 337
E
 HIS -1ALA 10
Residue contacts

1. List of contacts for up to 10 consecutive residues:
Chain ID from residue number to residue number


2. Detailed analyses of contacts for any single residue:
Residue number chain ID
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There are 56 helices in PDB entry 4IHH. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
6 13Right-handed alpha
Helix 2
2
A
44 51Right-handed 310
Helix 3
3
A
62 69Right-handed 310
Helix 4
4
A
78 90Right-handed alpha
Helix 5
5
A
310 322Right-handed alpha
Helix 6
6
A
322 337Right-handed alpha
Helix 7
7
B
6 13Right-handed alpha
Helix 8
8
B
44 54Right-handed 310
Helix 9
9
B
65 69Right-handed 310
Helix 10
10
B
78 90Right-handed alpha
Helix 11
11
B
310 322Right-handed alpha
Helix 12
12
B
322 337Right-handed alpha
Helix 13
13
C
6 13Right-handed alpha
Helix 14
14
C
44 51Right-handed 310
Helix 15
15
C
65 69Right-handed 310
Helix 16
16
C
78 90Right-handed alpha
Helix 17
17
C
310 322Right-handed alpha
Helix 18
18
C
322 338Right-handed alpha
Helix 19
19
D
6 13Right-handed alpha
Helix 20
20
D
44 50Right-handed 310
Helix 21
21
D
65 69Right-handed 310
Helix 22
22
D
78 90Right-handed alpha
Helix 23
23
D
310 322Right-handed alpha
Helix 24
24
D
322 337Right-handed alpha
Helix 25
25
E
6 13Right-handed alpha
Helix 26
26
E
44 51Right-handed 310
Helix 27
27
E
65 69Right-handed 310
Helix 28
28
E
78 90Right-handed alpha
Helix 29
29
E
310 322Right-handed alpha
Helix 30
30
E
322 339Right-handed alpha
Helix 31
31
F
6 13Right-handed alpha
Helix 32
32
F
44 53Right-handed 310
Helix 33
33
F
62 69Right-handed 310
Helix 34
34
F
78 90Right-handed alpha
Helix 35
35
F
310 322Right-handed alpha
Helix 36
36
F
322 338Right-handed alpha
Helix 37
37
G
5 15Right-handed alpha
Helix 38
38
G
18 22Right-handed 310
Helix 39
39
G
36 49Right-handed alpha
Helix 40
40
G
55 60Right-handed alpha
Helix 41
41
G
64 73Right-handed alpha
Helix 42
42
H
36 44Right-handed alpha
Helix 43
43
I
2 15Right-handed alpha
Helix 44
44
I
35 50Right-handed alpha
Helix 45
45
I
55 60Right-handed alpha
Helix 46
46
I
64 74Right-handed alpha
Helix 47
47
J
2 16Right-handed alpha
Helix 48
48
J
18 22Right-handed 310
Helix 49
49
J
36 50Right-handed alpha
Helix 50
50
J
55 60Right-handed alpha
Helix 51
51
J
64 74Right-handed alpha
Helix 52
52
K
4 16Right-handed alpha
Helix 53
53
K
36 50Right-handed alpha
Helix 54
54
K
55 60Right-handed alpha
Helix 55
55
K
64 75Right-handed alpha
Helix 56
56
L
36 44Right-handed alpha
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There are 36 sheets in PDB entry 4IHH. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ,

There are 2 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
4 5first strand
Strand 2
A
24 25anti-parallel
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There are 5 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
15 18first strand
Strand 2
A
72 76anti-parallel
Strand 3
A
58 61parallel
Strand 4
A
38 41parallel
Strand 5
A
27 30parallel
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There are 10 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
104 107first strand
Strand 2
A
122 125parallel
Strand 3
A
140 143parallel
Strand 4
A
158 161parallel
Strand 5
A
176 180parallel
Strand 6
A
213 216parallel
Strand 7
A
235 238parallel
Strand 8
A
253 256parallel
Strand 9
A
271 274parallel
Strand 10
A
289 292parallel
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There are 9 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
110 113first strand
Strand 2
A
128 131parallel
Strand 3
A
146 149parallel
Strand 4
A
164 167parallel
Strand 5
A
200 204parallel
Strand 6
A
222 226parallel
Strand 7
A
241 244parallel
Strand 8
A
259 262parallel
Strand 9
A
277 280parallel
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There are 11 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
116 119first strand
Strand 2
A
134 137parallel
Strand 3
A
152 155parallel
Strand 4
A
170 173parallel
Strand 5
A
207 210parallel
Strand 6
A
229 232parallel
Strand 7
A
247 250parallel
Strand 8
A
265 268parallel
Strand 9
A
283 286parallel
Strand 10
A
299 303parallel
Strand 11
C
307 309anti-parallel
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There are 2 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
185 188first strand
Strand 2
A
191 194anti-parallel
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There are 11 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
307 309first strand
Strand 2
B
299 303anti-parallel
Strand 3
B
283 286parallel
Strand 4
B
265 268parallel
Strand 5
B
247 250parallel
Strand 6
B
229 232parallel
Strand 7
B
207 210parallel
Strand 8
B
170 173parallel
Strand 9
B
152 155parallel
Strand 10
B
134 137parallel
Strand 11
B
116 119parallel
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There are 2 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
4 5first strand
Strand 2
B
24 25anti-parallel
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There are 5 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
15 18first strand
Strand 2
B
72 76anti-parallel
Strand 3
B
58 61parallel
Strand 4
B
38 41parallel
Strand 5
B
27 30parallel
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There are 10 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
104 107first strand
Strand 2
B
122 125parallel
Strand 3
B
140 143parallel
Strand 4
B
158 161parallel
Strand 5
B
176 180parallel
Strand 6
B
213 216parallel
Strand 7
B
235 238parallel
Strand 8
B
253 256parallel
Strand 9
B
271 274parallel
Strand 10
B
289 292parallel
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There are 9 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
110 113first strand
Strand 2
B
128 131parallel
Strand 3
B
146 149parallel
Strand 4
B
164 167parallel
Strand 5
B
200 204parallel
Strand 6
B
222 226parallel
Strand 7
B
241 244parallel
Strand 8
B
259 262parallel
Strand 9
B
277 280parallel
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There are 2 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
185 188first strand
Strand 2
B
191 194anti-parallel
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There are 11 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
307 309first strand
Strand 2
C
299 303anti-parallel
Strand 3
C
283 286parallel
Strand 4
C
265 268parallel
Strand 5
C
247 250parallel
Strand 6
C
229 232parallel
Strand 7
C
207 210parallel
Strand 8
C
170 173parallel
Strand 9
C
152 155parallel
Strand 10
C
134 137parallel
Strand 11
C
116 119parallel
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There are 2 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
4 5first strand
Strand 2
C
24 25anti-parallel
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There are 5 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
15 18first strand
Strand 2
C
72 76anti-parallel
Strand 3
C
58 61parallel
Strand 4
C
38 41parallel
Strand 5
C
27 30parallel
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There are 10 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
104 107first strand
Strand 2
C
122 125parallel
Strand 3
C
140 143parallel
Strand 4
C
158 161parallel
Strand 5
C
176 180parallel
Strand 6
C
213 216parallel
Strand 7
C
235 238parallel
Strand 8
C
253 256parallel
Strand 9
C
271 274parallel
Strand 10
C
289 292parallel
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There are 9 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
110 113first strand
Strand 2
C
128 131parallel
Strand 3
C
146 149parallel
Strand 4
C
164 167parallel
Strand 5
C
200 204parallel
Strand 6
C
222 226parallel
Strand 7
C
241 244parallel
Strand 8
C
259 262parallel
Strand 9
C
277 280parallel
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There are 2 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
185 188first strand
Strand 2
C
191 194anti-parallel
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There are 2 strands in S sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
4 5first strand
Strand 2
D
24 25anti-parallel
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There are 5 strands in T sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
15 18first strand
Strand 2
D
72 76anti-parallel
Strand 3
D
58 61parallel
Strand 4
D
38 41parallel
Strand 5
D
27 30parallel
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There are 10 strands in U sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
104 107first strand
Strand 2
D
122 125parallel
Strand 3
D
140 143parallel
Strand 4
D
158 161parallel
Strand 5
D
176 180parallel
Strand 6
D
213 216parallel
Strand 7
D
235 238parallel
Strand 8
D
253 256parallel
Strand 9
D
271 274parallel
Strand 10
D
289 292parallel
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There are 9 strands in V sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
110 113first strand
Strand 2
D
128 131parallel
Strand 3
D
146 149parallel
Strand 4
D
164 167parallel
Strand 5
D
200 204parallel
Strand 6
D
222 226parallel
Strand 7
D
241 244parallel
Strand 8
D
259 262parallel
Strand 9
D
277 280parallel
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There are 11 strands in W sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
116 119first strand
Strand 2
D
134 137parallel
Strand 3
D
152 155parallel
Strand 4
D
170 173parallel
Strand 5
D
207 210parallel
Strand 6
D
229 232parallel
Strand 7
D
247 250parallel
Strand 8
D
265 268parallel
Strand 9
D
283 286parallel
Strand 10
D
299 303parallel
Strand 11
F
307 309anti-parallel
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There are 2 strands in X sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
185 188first strand
Strand 2
D
191 194anti-parallel
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There are 11 strands in Y sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
307 309first strand
Strand 2
E
299 303anti-parallel
Strand 3
E
283 286parallel
Strand 4
E
265 268parallel
Strand 5
E
247 250parallel
Strand 6
E
229 232parallel
Strand 7
E
207 210parallel
Strand 8
E
170 173parallel
Strand 9
E
152 155parallel
Strand 10
E
134 137parallel
Strand 11
E
116 119parallel
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There are 2 strands in Z sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
4 5first strand
Strand 2
E
24 25anti-parallel
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There are 5 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
15 18first strand
Strand 2
E
72 76anti-parallel
Strand 3
E
58 61parallel
Strand 4
E
38 41parallel
Strand 5
E
27 30parallel
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There are 10 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
104 107first strand
Strand 2
E
122 125parallel
Strand 3
E
140 143parallel
Strand 4
E
158 161parallel
Strand 5
E
176 180parallel
Strand 6
E
213 216parallel
Strand 7
E
235 238parallel
Strand 8
E
253 256parallel
Strand 9
E
271 274parallel
Strand 10
E
289 292parallel
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There are 9 strands in AC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
110 113first strand
Strand 2
E
128 131parallel
Strand 3
E
146 149parallel
Strand 4
E
164 167parallel
Strand 5
E
200 204parallel
Strand 6
E
222 226parallel
Strand 7
E
241 244parallel
Strand 8
E
259 262parallel
Strand 9
E
277 280parallel
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There are 2 strands in AD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
185 188first strand
Strand 2
E
191 194anti-parallel
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There are 11 strands in AE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
307 309first strand
Strand 2
F
299 303anti-parallel
Strand 3
F
283 286parallel
Strand 4
F
265 268parallel
Strand 5
F
247 250parallel
Strand 6
F
229 232parallel
Strand 7
F
207 210parallel
Strand 8
F
170 173parallel
Strand 9
F
152 155parallel
Strand 10
F
134 137parallel
Strand 11
F
116 119parallel
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There are 2 strands in AF sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
4 5first strand
Strand 2
F
24 25anti-parallel
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There are 5 strands in AG sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
15 18first strand
Strand 2
F
72 76anti-parallel
Strand 3
F
58 61parallel
Strand 4
F
38 41parallel
Strand 5
F
27 30parallel
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There are 10 strands in AH sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
104 107first strand
Strand 2
F
122 125parallel
Strand 3
F
140 143parallel
Strand 4
F
158 161parallel
Strand 5
F
176 180parallel
Strand 6
F
213 216parallel
Strand 7
F
235 238parallel
Strand 8
F
253 256parallel
Strand 9
F
271 274parallel
Strand 10
F
289 292parallel
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There are 9 strands in AI sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
110 113first strand
Strand 2
F
128 131parallel
Strand 3
F
146 149parallel
Strand 4
F
164 167parallel
Strand 5
F
200 204parallel
Strand 6
F
222 226parallel
Strand 7
F
241 244parallel
Strand 8
F
259 262parallel
Strand 9
F
277 280parallel
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There are 2 strands in AJ sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
185 188first strand
Strand 2
F
191 194anti-parallel
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