Analysis of interatomic Contacts of Structural Units in PDB entry:
1P4A


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 1P4A entry

There are 4 chains in PDB entry 1P4A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 2ASN 276
B
 LYS 2PHE 273
C
 LYS 2PHE 273
D
 LYS 2PHE 273
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 44 helices in PDB entry 1P4A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
4 18Right-handed alpha
Helix 2
2
A
26 34Right-handed alpha
Helix 3
3
A
36 54Right-handed alpha
Helix 4
4
A
76 93Right-handed alpha
Helix 5
5
A
94 97Right-handed 310
Helix 6
6
A
107 110Right-handed 310
Helix 7
7
A
111 126Right-handed alpha
Helix 8
8
A
141 153Right-handed alpha
Helix 9
9
A
191 193Right-handed 310
Helix 10
10
A
209 222Right-handed alpha
Helix 11
11
A
268 273Right-handed 310
Helix 12
12
B
4 19Right-handed alpha
Helix 13
13
B
26 34Right-handed alpha
Helix 14
14
B
36 54Right-handed alpha
Helix 15
15
B
76 92Right-handed alpha
Helix 16
16
B
93 95Right-handed 310
Helix 17
17
B
105 110Right-handed alpha
Helix 18
18
B
111 126Right-handed alpha
Helix 19
19
B
141 153Right-handed alpha
Helix 20
20
B
191 193Right-handed 310
Helix 21
21
B
209 222Right-handed alpha
Helix 22
22
B
268 273Right-handed 310
Helix 23
23
C
4 19Right-handed alpha
Helix 24
24
C
26 34Right-handed alpha
Helix 25
25
C
36 54Right-handed alpha
Helix 26
26
C
76 92Right-handed alpha
Helix 27
27
C
93 95Right-handed 310
Helix 28
28
C
107 110Right-handed 310
Helix 29
29
C
111 126Right-handed alpha
Helix 30
30
C
141 153Right-handed alpha
Helix 31
31
C
191 193Right-handed 310
Helix 32
32
C
209 222Right-handed alpha
Helix 33
33
C
268 273Right-handed 310
Helix 34
34
D
4 18Right-handed alpha
Helix 35
35
D
26 34Right-handed alpha
Helix 36
36
D
36 54Right-handed alpha
Helix 37
37
D
76 92Right-handed alpha
Helix 38
38
D
93 95Right-handed 310
Helix 39
39
D
107 110Right-handed 310
Helix 40
40
D
111 126Right-handed alpha
Helix 41
41
D
141 153Right-handed alpha
Helix 42
42
D
191 193Right-handed 310
Helix 43
43
D
209 222Right-handed alpha
Helix 44
44
D
268 273Right-handed 310
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There are 15 sheets in PDB entry 1P4A. 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,

There are 3 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
24 25first strand
Strand 2
A
68 73anti-parallel
Strand 3
A
57 62anti-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
156 159first strand
Strand 2
A
133 137parallel
Strand 3
A
198 206parallel
Strand 4
A
225 235parallel
Strand 5
A
247 252parallel
Strand 6
A
264 266anti-parallel
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There are 2 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
170 176first strand
Strand 2
A
183 189anti-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
B
24 25first strand
Strand 2
B
68 73anti-parallel
Strand 3
B
57 62anti-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
97 98first strand
Strand 2
B
102 103anti-parallel
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There are 6 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
156 159first strand
Strand 2
B
133 137parallel
Strand 3
B
198 206parallel
Strand 4
B
225 235parallel
Strand 5
B
247 256parallel
Strand 6
B
261 266anti-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
170 177first strand
Strand 2
B
180 189anti-parallel
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There are 3 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
24 25first strand
Strand 2
C
68 73anti-parallel
Strand 3
C
57 62anti-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
97 98first strand
Strand 2
C
102 103anti-parallel
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There are 6 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
156 159first strand
Strand 2
C
133 137parallel
Strand 3
C
198 206parallel
Strand 4
C
225 235parallel
Strand 5
C
247 252parallel
Strand 6
C
264 266anti-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
C
170 175first strand
Strand 2
C
184 189anti-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
24 25first strand
Strand 2
D
68 73anti-parallel
Strand 3
D
57 62anti-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
97 98first strand
Strand 2
D
102 103anti-parallel
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There are 6 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
156 159first strand
Strand 2
D
133 137parallel
Strand 3
D
198 206parallel
Strand 4
D
225 235parallel
Strand 5
D
247 252parallel
Strand 6
D
264 266anti-parallel
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There are 2 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
170 176first strand
Strand 2
D
183 189anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il