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


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 1NXK entry

There are 4 chains in PDB entry 1NXK (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLN 42ASP 345
B
 PRO 44ASP 345
C
 GLN 41THR 357
D
 PHE 43LEU 342
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 58 helices in PDB entry 1NXK. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
44 46Right-handed 310
Helix 2
2
A
58 61Right-handed 310
Helix 3
3
A
98 112Right-handed alpha
Helix 4
4
A
146 152Right-handed alpha
Helix 5
5
A
159 180Right-handed alpha
Helix 6
6
A
188 190Right-handed 310
Helix 7
7
A
231 235Right-handed 310
Helix 8
8
A
242 259Right-handed alpha
Helix 9
9
A
274 282Right-handed alpha
Helix 10
10
A
295 304Right-handed alpha
Helix 11
11
A
309 313Right-handed 310
Helix 12
12
A
315 322Right-handed alpha
Helix 13
13
A
322 327Right-handed alpha
Helix 14
14
A
337 345Right-handed alpha
Helix 15
15
B
58 61Right-handed 310
Helix 16
16
B
98 112Right-handed alpha
Helix 17
17
B
145 153Right-handed alpha
Helix 18
18
B
159 180Right-handed alpha
Helix 19
19
B
188 190Right-handed 310
Helix 20
20
B
231 236Right-handed 310
Helix 21
21
B
241 257Right-handed alpha
Helix 22
22
B
274 282Right-handed alpha
Helix 23
23
B
295 306Right-handed alpha
Helix 24
24
B
309 313Right-handed 310
Helix 25
25
B
315 322Right-handed alpha
Helix 26
26
B
322 327Right-handed alpha
Helix 27
27
B
328 331Right-handed 310
Helix 28
28
B
337 345Right-handed alpha
Helix 29
29
C
44 46Right-handed 310
Helix 30
30
C
58 62Right-handed 310
Helix 31
31
C
98 112Right-handed alpha
Helix 32
32
C
145 152Right-handed alpha
Helix 33
33
C
160 180Right-handed alpha
Helix 34
34
C
188 190Right-handed 310
Helix 35
35
C
231 236Right-handed alpha
Helix 36
36
C
241 259Right-handed alpha
Helix 37
37
C
274 282Right-handed alpha
Helix 38
38
C
295 306Right-handed alpha
Helix 39
39
C
309 313Right-handed 310
Helix 40
40
C
315 322Right-handed alpha
Helix 41
41
C
322 327Right-handed alpha
Helix 42
42
C
328 331Right-handed 310
Helix 43
43
C
337 345Right-handed alpha
Helix 44
44
C
346 356Right-handed alpha
Helix 45
45
D
44 48Right-handed 310
Helix 46
46
D
58 61Right-handed 310
Helix 47
47
D
98 112Right-handed alpha
Helix 48
48
D
146 153Right-handed alpha
Helix 49
49
D
159 180Right-handed alpha
Helix 50
50
D
188 190Right-handed 310
Helix 51
51
D
231 236Right-handed alpha
Helix 52
52
D
240 259Right-handed alpha
Helix 53
53
D
274 282Right-handed alpha
Helix 54
54
D
295 304Right-handed alpha
Helix 55
55
D
309 313Right-handed 310
Helix 56
56
D
315 321Right-handed alpha
Helix 57
57
D
322 327Right-handed alpha
Helix 58
58
D
337 342Right-handed alpha
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There are 13 sheets in PDB entry 1NXK. 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,

There are 6 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
48 50first strand
Strand 2
C
120 128anti-parallel
Strand 3
C
131 139anti-parallel
Strand 4
C
89 96anti-parallel
Strand 5
C
76 82anti-parallel
Strand 6
C
64 73anti-parallel
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There are 6 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
63 73first strand
Strand 2
A
76 83anti-parallel
Strand 3
A
89 96anti-parallel
Strand 4
A
131 139anti-parallel
Strand 5
A
120 128anti-parallel
Strand 6
B
48 50anti-parallel
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There are 3 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
144 145first strand
Strand 2
A
192 194anti-parallel
Strand 3
A
203 205anti-parallel
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There are 2 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
182 183first strand
Strand 2
A
212 213anti-parallel
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There are 6 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
63 73first strand
Strand 2
B
76 83anti-parallel
Strand 3
B
89 96anti-parallel
Strand 4
B
131 138anti-parallel
Strand 5
B
120 128anti-parallel
Strand 6
C
48 50anti-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
B
182 183first strand
Strand 2
B
212 213anti-parallel
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There are 2 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
192 194first strand
Strand 2
B
203 205anti-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
C
158 159first strand
Strand 2
C
335 336anti-parallel
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There are 2 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
182 183first strand
Strand 2
C
212 213anti-parallel
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There are 2 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
192 194first strand
Strand 2
C
203 205anti-parallel
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There are 5 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
63 73first strand
Strand 2
D
76 83anti-parallel
Strand 3
D
89 96anti-parallel
Strand 4
D
131 139anti-parallel
Strand 5
D
120 128anti-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
D
144 145first strand
Strand 2
D
192 194anti-parallel
Strand 3
D
203 205anti-parallel
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There are 2 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
182 183first strand
Strand 2
D
212 213anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il