Analysis of interatomic Contacts of Structural Units in PDB entry:
1N4A


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 1N4A entry

There are 2 chains in PDB entry 1N4A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 1ASP 244
B
 ALA 5001ASP 5244
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 28 helices in PDB entry 1N4A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
8 18Right-handed alpha
Helix 2
2
A
32 38Right-handed 310
Helix 3
3
A
48 55Right-handed alpha
Helix 4
4
A
68 73Right-handed alpha
Helix 5
5
A
73 78Right-handed alpha
Helix 6
6
A
89 101Right-handed alpha
Helix 7
7
A
102 104Right-handed 310
Helix 8
8
A
106 129Right-handed alpha
Helix 9
9
A
152 161Right-handed alpha
Helix 10
10
A
178 185Right-handed alpha
Helix 11
11
A
195 197Right-handed 310
Helix 12
12
A
198 207Right-handed alpha
Helix 13
13
A
208 210Right-handed 310
Helix 14
14
A
218 223Right-handed alpha
Helix 15
15
A
228 241Right-handed alpha
Helix 16
16
B
5008 5018Right-handed alpha
Helix 17
17
B
5032 5038Right-handed 310
Helix 18
18
B
5048 5055Right-handed alpha
Helix 19
19
B
5068 5078Right-handed alpha
Helix 20
20
B
5089 5101Right-handed alpha
Helix 21
21
B
5102 5104Right-handed 310
Helix 22
22
B
5106 5129Right-handed alpha
Helix 23
23
B
5152 5161Right-handed alpha
Helix 24
24
B
5178 5185Right-handed alpha
Helix 25
25
B
5195 5197Right-handed 310
Helix 26
26
B
5198 5207Right-handed alpha
Helix 27
27
B
5218 5223Right-handed alpha
Helix 28
28
B
5228 5241Right-handed alpha
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There are 6 sheets in PDB entry 1N4A. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

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
4 6first strand
Strand 2
A
59 63parallel
Strand 3
A
82 85parallel
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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
25 26first strand
Strand 2
A
40 42parallel
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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
A
163 165first strand
Strand 2
A
134 138parallel
Strand 3
A
189 192parallel
Strand 4
A
214 216parallel
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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
5004 5006first strand
Strand 2
B
5059 5063parallel
Strand 3
B
5082 5085parallel
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There are 3 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
5025 5026first strand
Strand 2
B
5040 5043parallel
Strand 3
B
5046 5047anti-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
B
5163 5165first strand
Strand 2
B
5134 5138parallel
Strand 3
B
5189 5192parallel
Strand 4
B
5214 5216parallel
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