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


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 4QHK entry

There are 7 chains in PDB entry 4QHK (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
M
 VAL 2LYS 214
I
 VAL 2SER 215
O
 VAL 2LYS 214
K
 VAL 2SER 215
N
 TYR 2THR 209
J
 TYR 2THR 209
L
 TYR 2ILE 48
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 16 helices in PDB entry 4QHK. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
M
61 64Right-handed 310
Helix 2
2
M
201 204Right-handed 310
Helix 3
3
I
61 64Right-handed 310
Helix 4
4
I
201 204Right-handed 310
Helix 5
5
O
61 64Right-handed 310
Helix 6
6
O
201 204Right-handed 310
Helix 7
7
K
61 64Right-handed 310
Helix 8
8
K
201 204Right-handed 310
Helix 9
9
N
121 126Right-handed alpha
Helix 10
10
N
181 187Right-handed alpha
Helix 11
11
J
121 126Right-handed alpha
Helix 12
12
J
181 187Right-handed alpha
Helix 13
13
L
121 126Right-handed alpha
Helix 14
14
L
181 187Right-handed alpha
Helix 15
15
P
121 126Right-handed alpha
Helix 16
16
P
181 187Right-handed alpha
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There are 46 sheets in PDB entry 4QHK. 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, AK, AL, AM, AN, AO, AP, AQ, AR, AS, AT,

There are 4 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
3 7first strand
Strand 2
M
18 25anti-parallel
Strand 3
M
77 82anti-parallel
Strand 4
M
68 72anti-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
M
57 59first strand
Strand 2
M
46 51anti-parallel
Strand 3
M
32 39anti-parallel
Strand 4
M
88 96anti-parallel
Strand 5
M
101 103anti-parallel
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There are 5 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
57 59first strand
Strand 2
M
46 51anti-parallel
Strand 3
M
32 39anti-parallel
Strand 4
M
88 96anti-parallel
Strand 5
M
107 109anti-parallel
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There are 4 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
120 124first strand
Strand 2
M
135 145anti-parallel
Strand 3
M
176 185anti-parallel
Strand 4
M
163 165anti-parallel
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There are 3 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
151 154first strand
Strand 2
M
194 200anti-parallel
Strand 3
M
205 211anti-parallel
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There are 4 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
4 7first strand
Strand 2
I
18 24anti-parallel
Strand 3
I
77 82anti-parallel
Strand 4
I
68 72anti-parallel
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There are 6 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
11 12first strand
Strand 2
I
107 111parallel
Strand 3
I
88 95anti-parallel
Strand 4
I
33 39anti-parallel
Strand 5
I
46 51anti-parallel
Strand 6
I
57 59anti-parallel
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There are 4 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
120 124first strand
Strand 2
I
135 145anti-parallel
Strand 3
I
176 185anti-parallel
Strand 4
I
163 165anti-parallel
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There are 4 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
120 124first strand
Strand 2
I
135 145anti-parallel
Strand 3
I
176 185anti-parallel
Strand 4
I
169 170anti-parallel
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There are 3 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
151 154first strand
Strand 2
I
194 200anti-parallel
Strand 3
I
205 211anti-parallel
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There are 4 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
O
3 7first strand
Strand 2
O
18 25anti-parallel
Strand 3
O
77 82anti-parallel
Strand 4
O
68 72anti-parallel
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There are 6 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
O
11 12first strand
Strand 2
O
107 111parallel
Strand 3
O
88 96anti-parallel
Strand 4
O
32 39anti-parallel
Strand 5
O
46 51anti-parallel
Strand 6
O
57 59anti-parallel
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There are 4 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
O
11 12first strand
Strand 2
O
107 111parallel
Strand 3
O
88 96anti-parallel
Strand 4
O
101 103anti-parallel
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There are 4 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
O
120 124first strand
Strand 2
O
136 145anti-parallel
Strand 3
O
176 184anti-parallel
Strand 4
O
163 165anti-parallel
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There are 4 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
O
120 124first strand
Strand 2
O
136 145anti-parallel
Strand 3
O
176 184anti-parallel
Strand 4
O
169 170anti-parallel
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There are 3 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
O
151 154first strand
Strand 2
O
194 200anti-parallel
Strand 3
O
205 211anti-parallel
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There are 4 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
K
3 7first strand
Strand 2
K
18 25anti-parallel
Strand 3
K
77 82anti-parallel
Strand 4
K
68 72anti-parallel
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There are 5 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
K
57 59first strand
Strand 2
K
46 51anti-parallel
Strand 3
K
33 39anti-parallel
Strand 4
K
88 95anti-parallel
Strand 5
K
101 103anti-parallel
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There are 5 strands in S sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
K
57 59first strand
Strand 2
K
46 51anti-parallel
Strand 3
K
33 39anti-parallel
Strand 4
K
88 95anti-parallel
Strand 5
K
107 109anti-parallel
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There are 4 strands in T sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
K
120 124first strand
Strand 2
K
135 145anti-parallel
Strand 3
K
176 185anti-parallel
Strand 4
K
163 165anti-parallel
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There are 4 strands in U sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
K
120 124first strand
Strand 2
K
135 145anti-parallel
Strand 3
K
176 185anti-parallel
Strand 4
K
169 170anti-parallel
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There are 3 strands in V sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
K
151 154first strand
Strand 2
K
195 200anti-parallel
Strand 3
K
205 210anti-parallel
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There are 3 strands in W sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
N
19 24first strand
Strand 2
N
70 75anti-parallel
Strand 3
N
63 67anti-parallel
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There are 4 strands in X sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
N
45 48first strand
Strand 2
N
34 38anti-parallel
Strand 3
N
85 90anti-parallel
Strand 4
N
97 98anti-parallel
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There are 4 strands in Y sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
N
45 48first strand
Strand 2
N
34 38anti-parallel
Strand 3
N
85 90anti-parallel
Strand 4
N
102 103anti-parallel
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There are 4 strands in Z sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
N
114 118first strand
Strand 2
N
130 137anti-parallel
Strand 3
N
172 180anti-parallel
Strand 4
N
159 161anti-parallel
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There are 4 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
N
114 118first strand
Strand 2
N
130 137anti-parallel
Strand 3
N
172 180anti-parallel
Strand 4
N
165 166anti-parallel
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There are 4 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
N
153 154first strand
Strand 2
N
144 150anti-parallel
Strand 3
N
191 197anti-parallel
Strand 4
N
200 206anti-parallel
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There are 5 strands in AC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
J
9 13first strand
Strand 2
J
102 106parallel
Strand 3
J
85 90anti-parallel
Strand 4
J
34 38anti-parallel
Strand 5
J
45 48anti-parallel
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There are 4 strands in AD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
J
9 13first strand
Strand 2
J
102 106parallel
Strand 3
J
85 90anti-parallel
Strand 4
J
97 98anti-parallel
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There are 3 strands in AE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
J
19 24first strand
Strand 2
J
70 75anti-parallel
Strand 3
J
63 67anti-parallel
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There are 4 strands in AF sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
J
114 118first strand
Strand 2
J
130 137anti-parallel
Strand 3
J
173 180anti-parallel
Strand 4
J
159 161anti-parallel
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There are 4 strands in AG sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
J
153 154first strand
Strand 2
J
144 150anti-parallel
Strand 3
J
191 197anti-parallel
Strand 4
J
200 206anti-parallel
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There are 5 strands in AH sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
9 13first strand
Strand 2
L
102 106parallel
Strand 3
L
85 90anti-parallel
Strand 4
L
34 38anti-parallel
Strand 5
L
45 48anti-parallel
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There are 4 strands in AI sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
9 13first strand
Strand 2
L
102 106parallel
Strand 3
L
85 90anti-parallel
Strand 4
L
97 98anti-parallel
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There are 3 strands in AJ sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
19 23first strand
Strand 2
L
70 75anti-parallel
Strand 3
L
63 67anti-parallel
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There are 4 strands in AK sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
114 118first strand
Strand 2
L
130 137anti-parallel
Strand 3
L
172 180anti-parallel
Strand 4
L
159 161anti-parallel
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There are 4 strands in AL sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
114 118first strand
Strand 2
L
130 137anti-parallel
Strand 3
L
172 180anti-parallel
Strand 4
L
165 166anti-parallel
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There are 4 strands in AM sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
153 154first strand
Strand 2
L
144 150anti-parallel
Strand 3
L
191 197anti-parallel
Strand 4
L
200 206anti-parallel
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There are 5 strands in AN sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
P
9 13first strand
Strand 2
P
102 106parallel
Strand 3
P
85 90anti-parallel
Strand 4
P
34 38anti-parallel
Strand 5
P
45 48anti-parallel
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There are 4 strands in AO sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
P
9 13first strand
Strand 2
P
102 106parallel
Strand 3
P
85 90anti-parallel
Strand 4
P
97 98anti-parallel
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There are 3 strands in AP sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
P
19 24first strand
Strand 2
P
70 75anti-parallel
Strand 3
P
63 67anti-parallel
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There are 4 strands in AQ sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
P
114 118first strand
Strand 2
P
130 139anti-parallel
Strand 3
P
172 180anti-parallel
Strand 4
P
159 161anti-parallel
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There are 4 strands in AR sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
P
114 118first strand
Strand 2
P
130 139anti-parallel
Strand 3
P
172 180anti-parallel
Strand 4
P
165 166anti-parallel
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There are 4 strands in AS sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
P
153 154first strand
Strand 2
P
144 150anti-parallel
Strand 3
P
191 197anti-parallel
Strand 4
P
200 202anti-parallel
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There are 4 strands in AT sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
P
153 154first strand
Strand 2
P
144 150anti-parallel
Strand 3
P
191 197anti-parallel
Strand 4
P
205 206anti-parallel
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