Analysis of interatomic Contacts of Structural Units in PDB entry:
3SQD


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 3SQD entry


Note, this PDB entry contains modified residue(s) PHOSPHOSERINE (SEP) . This residue is treated as heterogroup (ligand) both in the PDB entry and in LPC/CSU analysis.

There are 5 chains in PDB entry 3SQD (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 859ASN 1069
B
 LEU 865ASN 1069
C
 LYS 133ALA 138
C
 GLN 140TYR 142
D
 GLN 140TYR 142
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 24 helices in PDB entry 3SQD. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
862 866Right-handed 310
Helix 2
2
A
875 889Right-handed alpha
Helix 3
3
A
896 900Right-handed 310
Helix 4
4
A
911 918Right-handed alpha
Helix 5
5
A
926 937Right-handed alpha
Helix 6
6
A
942 946Right-handed 310
Helix 7
7
A
949 956Right-handed alpha
Helix 8
8
A
959 970Right-handed alpha
Helix 9
9
A
987 998Right-handed alpha
Helix 10
10
A
1008 1018Right-handed alpha
Helix 11
11
A
1029 1035Right-handed 310
Helix 12
12
A
1036 1042Right-handed alpha
Helix 13
13
A
1049 1059Right-handed alpha
Helix 14
14
B
875 889Right-handed alpha
Helix 15
15
B
911 921Right-handed alpha
Helix 16
16
B
926 936Right-handed alpha
Helix 17
17
B
942 946Right-handed 310
Helix 18
18
B
949 956Right-handed alpha
Helix 19
19
B
959 970Right-handed alpha
Helix 20
20
B
987 998Right-handed alpha
Helix 21
21
B
1008 1018Right-handed alpha
Helix 22
22
B
1029 1035Right-handed 310
Helix 23
23
B
1036 1043Right-handed alpha
Helix 24
24
B
1049 1059Right-handed alpha
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There are 4 sheets in PDB entry 3SQD. Click on sheet of interest to get list of strands forming it: A, B, C, D,

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
892 893first strand
Strand 2
A
868 871parallel
Strand 3
A
902 904parallel
Strand 4
A
923 925parallel
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There are 4 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
1001 1003first strand
Strand 2
A
976 980parallel
Strand 3
A
1023 1028parallel
Strand 4
A
1047 1048parallel
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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
B
892 893first strand
Strand 2
B
868 871parallel
Strand 3
B
902 904parallel
Strand 4
B
923 925parallel
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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
1001 1002first strand
Strand 2
B
976 980parallel
Strand 3
B
1023 1027parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il