Analysis of interatomic Contacts of Structural Units in PDB entry:
1IL2


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 1IL2 entry

There are 18 chains in PDB entry 1IL2 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
C
 U 901 U 912
C
 A 914 A 915
C
 G 917 G 918
C
 C 920 C 931
C
 U 933 C 936
C
 C 938 U 948
C
 G 950 G 953
C
 C 956 A 976
D
 C 1902 U 1912
D
 A 1914 A 1915
D
 G 1917 G 1918
D
 C 1920 C 1931
D
 U 1933 C 1936
D
 C 1938 U 1948
D
 G 1950 G 1953
D
 C 1956 A 1972
A
 MET 1LYS 585
B
 MET 1001LYS 1585
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 51 helices in PDB entry 1IL2. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
5 9Right-handed 310
Helix 2
2
A
10 14Right-handed 310
Helix 3
3
A
53 63Right-handed alpha
Helix 4
4
A
79 83Right-handed 310
Helix 5
5
A
117 124Right-handed alpha
Helix 6
6
A
124 130Right-handed alpha
Helix 7
7
A
131 155Right-handed alpha
Helix 8
8
A
194 204Right-handed alpha
Helix 9
9
A
240 260Right-handed alpha
Helix 10
10
A
272 280Right-handed alpha
Helix 11
11
A
296 300Right-handed 310
Helix 12
12
A
304 312Right-handed alpha
Helix 13
13
A
325 329Right-handed 310
Helix 14
14
A
332 341Right-handed alpha
Helix 15
15
A
342 345Right-handed 310
Helix 16
16
A
356 360Right-handed 310
Helix 17
17
A
359 362Right-handed 310
Helix 18
18
A
373 385Right-handed alpha
Helix 19
19
A
399 417Right-handed alpha
Helix 20
20
A
458 463Right-handed alpha
Helix 21
21
A
492 503Right-handed alpha
Helix 22
22
A
506 515Right-handed alpha
Helix 23
23
A
514 521Right-handed alpha
Helix 24
24
A
535 544Right-handed alpha
Helix 25
25
A
547 552Right-handed 310
Helix 26
26
A
572 579Right-handed alpha
Helix 27
27
B
1005 1009Right-handed 310
Helix 28
28
B
1010 1014Right-handed 310
Helix 29
29
B
1053 1061Right-handed alpha
Helix 30
30
B
1079 1083Right-handed 310
Helix 31
31
B
1117 1124Right-handed alpha
Helix 32
32
B
1124 1129Right-handed alpha
Helix 33
33
B
1131 1155Right-handed alpha
Helix 34
34
B
1194 1204Right-handed alpha
Helix 35
35
B
1240 1261Right-handed alpha
Helix 36
36
B
1272 1280Right-handed alpha
Helix 37
37
B
1296 1299Right-handed 310
Helix 38
38
B
1304 1313Right-handed alpha
Helix 39
39
B
1325 1329Right-handed 310
Helix 40
40
B
1330 1344Right-handed alpha
Helix 41
41
B
1356 1358Right-handed 310
Helix 42
42
B
1359 1363Right-handed alpha
Helix 43
43
B
1373 1385Right-handed alpha
Helix 44
44
B
1399 1417Right-handed alpha
Helix 45
45
B
1458 1465Right-handed alpha
Helix 46
46
B
1492 1504Right-handed alpha
Helix 47
47
B
1506 1515Right-handed alpha
Helix 48
48
B
1514 1521Right-handed alpha
Helix 49
49
B
1535 1543Right-handed alpha
Helix 50
50
B
1547 1551Right-handed 310
Helix 51
51
B
1572 1579Right-handed alpha
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There are 12 sheets in PDB entry 1IL2. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

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
17 30first strand
Strand 2
A
33 40anti-parallel
Strand 3
A
43 49anti-parallel
Strand 4
A
92 103parallel
Strand 5
A
68 77anti-parallel
Strand 6
A
17 30anti-parallel
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There are 8 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
158 159first strand
Strand 2
A
208 216parallel
Strand 3
A
228 237anti-parallel
Strand 4
A
528 534anti-parallel
Strand 5
A
481 488anti-parallel
Strand 6
A
473 478anti-parallel
Strand 7
A
427 431anti-parallel
Strand 8
A
269 271parallel
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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
177 179first strand
Strand 2
A
186 189anti-parallel
Strand 3
B
1569 1570anti-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
292 294first strand
Strand 2
A
316 323anti-parallel
Strand 3
A
391 398anti-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
A
353 354first strand
Strand 2
A
364 365anti-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
A
436 438first strand
Strand 2
A
444 446anti-parallel
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There are 3 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
569 570first strand
Strand 2
B
1186 1189anti-parallel
Strand 3
B
1177 1179anti-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
A
581 583first strand
Strand 2
B
1581 1583anti-parallel
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There are 6 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
1017 1029first strand
Strand 2
B
1034 1040anti-parallel
Strand 3
B
1043 1049anti-parallel
Strand 4
B
1092 1103parallel
Strand 5
B
1068 1077anti-parallel
Strand 6
B
1017 1029anti-parallel
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There are 8 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
1158 1159first strand
Strand 2
B
1208 1216parallel
Strand 3
B
1228 1237anti-parallel
Strand 4
B
1528 1534anti-parallel
Strand 5
B
1481 1488anti-parallel
Strand 6
B
1473 1478anti-parallel
Strand 7
B
1427 1431anti-parallel
Strand 8
B
1269 1271parallel
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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
B
1292 1294first strand
Strand 2
B
1316 1323anti-parallel
Strand 3
B
1391 1398anti-parallel
Strand 4
B
1350 1354anti-parallel
Strand 5
B
1364 1365anti-parallel
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There are 2 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
1436 1438first strand
Strand 2
B
1444 1446anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il