Analysis of interatomic Contacts of Structural Units in PDB entry:
1K3A


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 1K3A entry

There are 4 chains in PDB entry 1K3A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 VAL 958ILE 1130
A
 GLU 1132ASP 1134
A
 ARG 1137LYS 1256
B
 GLY 6PHE 13
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 15 helices in PDB entry 1K3A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
965 967Right-handed 310
Helix 2
2
A
1010 1025Right-handed alpha
Helix 3
3
A
1056 1063Right-handed alpha
Helix 4
4
A
1078 1099Right-handed alpha
Helix 5
5
A
1107 1109Right-handed 310
Helix 6
6
A
1145 1149Right-handed 310
Helix 7
7
A
1150 1157Right-handed alpha
Helix 8
8
A
1160 1177Right-handed alpha
Helix 9
9
A
1187 1197Right-handed alpha
Helix 10
10
A
1208 1219Right-handed alpha
Helix 11
11
A
1222 1226Right-handed 310
Helix 12
12
A
1228 1237Right-handed alpha
Helix 13
13
A
1238 1240Right-handed 310
Helix 14
14
A
1241 1242Right-handed 310
Helix 15
15
A
1243 1248Right-handed alpha
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There are 5 sheets in PDB entry 1K3A. Click on sheet of interest to get list of strands forming it: A, B, C, D, E,

There are 5 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
969 977first strand
Strand 2
A
982 992anti-parallel
Strand 3
A
995 1005anti-parallel
Strand 4
A
1045 1050anti-parallel
Strand 5
A
1035 1039anti-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
1101 1102first strand
Strand 2
A
1128 1129anti-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
1111 1113first strand
Strand 2
A
1119 1121anti-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
1136 1137first strand
Strand 2
A
1158 1159anti-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
1140 1144first strand
Strand 2
B
9 13anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il