Analysis of interatomic Contacts of Structural Units in PDB entry:
3K1X


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 3K1X entry

There are 6 chains in PDB entry 3K1X (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 1SER 130
B
 LYS 1SER 130
C
 LYS 1SER 130
D
 LYS 1SER 130
E
 LYS 1SER 130
F
 LYS 1SER 130
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 25 helices in PDB entry 3K1X. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
31 34Right-handed 310
Helix 2
2
A
72 75Right-handed 310
Helix 3
3
A
94 98Right-handed 310
Helix 4
4
A
111 115Right-handed 310
Helix 5
5
A
119 122Right-handed 310
Helix 6
6
B
72 75Right-handed 310
Helix 7
7
B
83 85Right-handed 310
Helix 8
8
B
94 98Right-handed 310
Helix 9
9
B
111 115Right-handed 310
Helix 10
10
B
119 122Right-handed 310
Helix 11
11
C
72 75Right-handed 310
Helix 12
12
C
94 98Right-handed 310
Helix 13
13
C
111 115Right-handed 310
Helix 14
14
C
119 122Right-handed 310
Helix 15
15
D
94 98Right-handed 310
Helix 16
16
D
111 115Right-handed 310
Helix 17
17
D
119 122Right-handed 310
Helix 18
18
E
72 75Right-handed 310
Helix 19
19
E
94 98Right-handed 310
Helix 20
20
E
111 115Right-handed 310
Helix 21
21
E
119 122Right-handed 310
Helix 22
22
F
72 74Right-handed 310
Helix 23
23
F
94 98Right-handed 310
Helix 24
24
F
111 115Right-handed 310
Helix 25
25
F
119 122Right-handed 310
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There are 17 sheets in PDB entry 3K1X. 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,

There are 9 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
23 26first strand
Strand 2
A
13 17anti-parallel
Strand 3
A
3 8anti-parallel
Strand 4
A
124 128anti-parallel
Strand 5
A
87 91anti-parallel
Strand 6
A
77 81anti-parallel
Strand 7
A
45 50anti-parallel
Strand 8
A
36 39anti-parallel
Strand 9
A
3 8anti-parallel
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There are 2 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
56 59first strand
Strand 2
A
65 68anti-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
B
23 26first strand
Strand 2
B
13 17anti-parallel
Strand 3
B
4 8anti-parallel
Strand 4
B
124 128anti-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
B
36 42first strand
Strand 2
B
45 50anti-parallel
Strand 3
B
77 81anti-parallel
Strand 4
B
87 91anti-parallel
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There are 2 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
56 59first strand
Strand 2
B
65 68anti-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
C
23 26first strand
Strand 2
C
13 17anti-parallel
Strand 3
C
4 8anti-parallel
Strand 4
C
124 128anti-parallel
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There are 4 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
36 40first strand
Strand 2
C
45 50anti-parallel
Strand 3
C
77 81anti-parallel
Strand 4
C
87 91anti-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
56 59first strand
Strand 2
C
65 68anti-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
D
23 26first strand
Strand 2
D
13 17anti-parallel
Strand 3
D
4 8anti-parallel
Strand 4
D
124 128anti-parallel
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There are 4 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
36 40first strand
Strand 2
D
45 50anti-parallel
Strand 3
D
77 81anti-parallel
Strand 4
D
87 91anti-parallel
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There are 2 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
56 59first strand
Strand 2
D
65 68anti-parallel
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There are 4 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
23 26first strand
Strand 2
E
13 17anti-parallel
Strand 3
E
4 8anti-parallel
Strand 4
E
124 128anti-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
E
36 39first strand
Strand 2
E
45 50anti-parallel
Strand 3
E
77 81anti-parallel
Strand 4
E
87 91anti-parallel
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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
E
56 59first strand
Strand 2
E
65 68anti-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
F
23 26first strand
Strand 2
F
13 17anti-parallel
Strand 3
F
4 8anti-parallel
Strand 4
F
124 128anti-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
F
36 40first strand
Strand 2
F
45 50anti-parallel
Strand 3
F
76 81anti-parallel
Strand 4
F
87 91anti-parallel
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There are 2 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
56 59first strand
Strand 2
F
65 68anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il