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


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 1XCT entry

There are 8 chains in PDB entry 1XCT (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
P
 ASN 16GLY 45
Q
 PHE 24GLY 45
A
 ASP 1CYS 220
B
 GLN 1ARG 218
L
 THR 13LYS 82
C
 ASP 1CYS 220
D
 GLN 1ARG 218
M
 LYS 12LYS 82
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 19 helices in PDB entry 1XCT. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
P
32 36Right-handed 310
Helix 2
2
A
56 58Right-handed 310
Helix 3
3
A
85 89Right-handed 310
Helix 4
4
A
127 132Right-handed alpha
Helix 5
5
A
189 193Right-handed alpha
Helix 6
6
A
218 220Right-handed 310
Helix 7
7
B
62 65Right-handed 310
Helix 8
8
B
74 76Right-handed 310
Helix 9
9
B
87 91Right-handed 310
Helix 10
10
B
161 163Right-handed 310
Helix 11
11
B
191 193Right-handed 310
Helix 12
12
L
42 62Right-handed alpha
Helix 13
13
C
85 89Right-handed 310
Helix 14
14
C
127 132Right-handed alpha
Helix 15
15
C
188 193Right-handed alpha
Helix 16
16
C
218 220Right-handed 310
Helix 17
17
D
87 91Right-handed 310
Helix 18
18
D
159 163Right-handed 310
Helix 19
19
M
42 56Right-handed alpha
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There are 23 sheets in PDB entry 1XCT. 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,

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
5 7first strand
Strand 2
A
19 24anti-parallel
Strand 3
A
76 81anti-parallel
Strand 4
A
68 73anti-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
59 60first strand
Strand 2
A
51 55anti-parallel
Strand 3
A
39 44anti-parallel
Strand 4
A
90 96anti-parallel
Strand 5
A
103 104anti-parallel
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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
59 60first strand
Strand 2
A
51 55anti-parallel
Strand 3
A
39 44anti-parallel
Strand 4
A
90 96anti-parallel
Strand 5
A
108 113anti-parallel
Strand 6
A
10 14parallel
Strand 7
L
34 41anti-parallel
Strand 8
L
21 29anti-parallel
Strand 9
L
75 79parallel
Strand 10
L
64 66anti-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
30 31first strand
Strand 2
A
36 37anti-parallel
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There are 4 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
120 124first strand
Strand 2
A
135 145anti-parallel
Strand 3
A
179 188anti-parallel
Strand 4
A
165 169anti-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
A
159 161first strand
Strand 2
A
150 156anti-parallel
Strand 3
A
197 204anti-parallel
Strand 4
A
211 216anti-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
B
3 6first strand
Strand 2
B
18 25anti-parallel
Strand 3
B
78 83anti-parallel
Strand 4
B
68 73anti-parallel
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There are 6 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
10 12first strand
Strand 2
B
112 116parallel
Strand 3
B
92 99anti-parallel
Strand 4
B
33 39anti-parallel
Strand 5
B
45 51anti-parallel
Strand 6
B
58 60anti-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
B
10 12first strand
Strand 2
B
112 116parallel
Strand 3
B
92 99anti-parallel
Strand 4
B
105 107anti-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
B
125 127first strand
Strand 2
B
146 150anti-parallel
Strand 3
B
179 189anti-parallel
Strand 4
B
169 170anti-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
B
140 143first strand
Strand 2
B
179 189anti-parallel
Strand 3
B
175 176anti-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
B
157 159first strand
Strand 2
B
199 204anti-parallel
Strand 3
B
209 214anti-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
C
4 7first strand
Strand 2
C
19 25anti-parallel
Strand 3
C
76 81anti-parallel
Strand 4
C
68 73anti-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
C
51 54first strand
Strand 2
C
39 44anti-parallel
Strand 3
C
90 96anti-parallel
Strand 4
C
103 104anti-parallel
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There are 9 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
51 54first strand
Strand 2
C
39 44anti-parallel
Strand 3
C
90 96anti-parallel
Strand 4
C
108 113anti-parallel
Strand 5
C
10 14parallel
Strand 6
M
34 41anti-parallel
Strand 7
M
21 28anti-parallel
Strand 8
M
74 79parallel
Strand 9
M
64 65anti-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
C
120 124first strand
Strand 2
C
136 145anti-parallel
Strand 3
C
179 187anti-parallel
Strand 4
C
165 169anti-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
C
159 161first strand
Strand 2
C
151 156anti-parallel
Strand 3
C
197 203anti-parallel
Strand 4
C
211 216anti-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
D
5 6first strand
Strand 2
D
20 23anti-parallel
Strand 3
D
79 83anti-parallel
Strand 4
D
68 72anti-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
10 11first strand
Strand 2
D
114 115parallel
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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
58 60first strand
Strand 2
D
46 51anti-parallel
Strand 3
D
33 38anti-parallel
Strand 4
D
95 99anti-parallel
Strand 5
D
105 108anti-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
D
125 129first strand
Strand 2
D
140 150anti-parallel
Strand 3
D
184 189anti-parallel
Strand 4
D
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
D
125 129first strand
Strand 2
D
140 150anti-parallel
Strand 3
D
180 182anti-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
D
199 204first strand
Strand 2
D
209 214anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il