Analysis of interatomic Contacts of Structural Units in PDB entry:
1AHW


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 1AHW entry

There are 6 chains in PDB entry 1AHW (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ASP 1CYS 214
B
 GLU 1ILE 214
C
 THR 4GLY 211
D
 ASP 1CYS 214
E
 GLU 1ILE 214
F
 THR 4GLY 211
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 22 helices in PDB entry 1AHW. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
80 82Right-handed 310
Helix 2
2
A
122 127Right-handed alpha
Helix 3
3
A
183 188Right-handed alpha
Helix 4
4
B
29 31Right-handed 310
Helix 5
5
B
53 55Right-handed 310
Helix 6
6
B
62 64Right-handed 310
Helix 7
7
B
88 90Right-handed 310
Helix 8
8
B
189 191Right-handed 310
Helix 9
9
B
204 206Right-handed 310
Helix 10
10
C
60 66Right-handed alpha
Helix 11
11
C
102 105Right-handed alpha
Helix 12
12
C
143 147Right-handed alpha
Helix 13
13
D
80 82Right-handed 310
Helix 14
14
D
122 127Right-handed alpha
Helix 15
15
D
183 188Right-handed alpha
Helix 16
16
E
62 64Right-handed 310
Helix 17
17
E
88 90Right-handed 310
Helix 18
18
E
189 191Right-handed 310
Helix 19
19
E
204 206Right-handed 310
Helix 20
20
F
60 66Right-handed alpha
Helix 21
21
F
102 105Right-handed alpha
Helix 22
22
F
143 147Right-handed alpha
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There are 26 sheets in PDB entry 1AHW. 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,

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
A
4 7first strand
Strand 2
A
19 25anti-parallel
Strand 3
A
70 75anti-parallel
Strand 4
A
62 67anti-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
10 14first strand
Strand 2
A
102 107parallel
Strand 3
A
84 90anti-parallel
Strand 4
A
33 38anti-parallel
Strand 5
A
45 48anti-parallel
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There are 4 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
114 118first strand
Strand 2
A
129 137anti-parallel
Strand 3
A
177 182anti-parallel
Strand 4
A
159 161anti-parallel
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There are 3 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
145 150first strand
Strand 2
A
191 197anti-parallel
Strand 3
A
205 210anti-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
B
3 6first strand
Strand 2
B
18 25anti-parallel
Strand 3
B
78 83anti-parallel
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There are 3 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
9 12first strand
Strand 2
B
111 115parallel
Strand 3
B
92 94anti-parallel
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There are 5 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
57 60first strand
Strand 2
B
45 52anti-parallel
Strand 3
B
33 39anti-parallel
Strand 4
B
95 99anti-parallel
Strand 5
B
104 107anti-parallel
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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
124 128first strand
Strand 2
B
143 147anti-parallel
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There are 3 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
155 158first strand
Strand 2
B
198 203anti-parallel
Strand 3
B
208 213anti-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
C
13 17first strand
Strand 2
C
20 24anti-parallel
Strand 3
C
56 58anti-parallel
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There are 3 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
32 39first strand
Strand 2
C
72 79anti-parallel
Strand 3
C
93 96anti-parallel
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There are 3 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
174 178first strand
Strand 2
C
122 127anti-parallel
Strand 3
C
113 118anti-parallel
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There are 3 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
185 192first strand
Strand 2
C
152 159anti-parallel
Strand 3
C
166 170anti-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
D
4 7first strand
Strand 2
D
19 25anti-parallel
Strand 3
D
70 75anti-parallel
Strand 4
D
62 67anti-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
D
10 14first strand
Strand 2
D
102 107parallel
Strand 3
D
84 90anti-parallel
Strand 4
D
33 38anti-parallel
Strand 5
D
45 49anti-parallel
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There are 4 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
114 118first strand
Strand 2
D
132 137anti-parallel
Strand 3
D
175 179anti-parallel
Strand 4
D
159 163anti-parallel
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There are 3 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
145 150first strand
Strand 2
D
191 197anti-parallel
Strand 3
D
205 210anti-parallel
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There are 4 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
3 6first strand
Strand 2
E
18 25anti-parallel
Strand 3
E
78 83anti-parallel
Strand 4
E
69 73anti-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
E
11 13first strand
Strand 2
E
114 116parallel
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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
E
111 113first strand
Strand 2
E
92 99anti-parallel
Strand 3
E
33 39anti-parallel
Strand 4
E
46 52anti-parallel
Strand 5
E
57 60anti-parallel
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There are 2 strands in U sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
139 144first strand
Strand 2
E
183 188anti-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
E
155 158first strand
Strand 2
E
198 203anti-parallel
Strand 3
E
208 213anti-parallel
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There are 2 strands in W sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
13 17first strand
Strand 2
F
20 24anti-parallel
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There are 3 strands in X sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
32 39first strand
Strand 2
F
72 79anti-parallel
Strand 3
F
94 96anti-parallel
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There are 3 strands in Y sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
174 178first strand
Strand 2
F
122 127anti-parallel
Strand 3
F
113 118anti-parallel
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There are 3 strands in Z sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
185 192first strand
Strand 2
F
152 159anti-parallel
Strand 3
F
166 170anti-parallel
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