Analysis of interatomic Contacts of Structural Units in PDB entry:
1A4Q


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 1A4Q entry

There are 2 chains in PDB entry 1A4Q (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLU 76LEU 465
B
 GLU 76LEU 465
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 4 helices in PDB entry 1A4Q. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
99 102Right-handed 310
Helix 2
2
A
196 198Right-handed 310
Helix 3
3
B
99 102Right-handed 310
Helix 4
4
B
196 198Right-handed 310
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There are 14 sheets in PDB entry 1A4Q. Click on sheet of interest to get list of strands forming it: 1A, 2A, 3AA, 3BA, 4A, 5A, 6A, 1B, 2B, 3AB, 3BB, 4B, 5B, 6B,

There are 4 strands in 1A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
113 121first strand
Strand 2
A
126 132anti-parallel
Strand 3
A
154 159anti-parallel
Strand 4
A
170 174anti-parallel
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There are 4 strands in 2A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
177 182first strand
Strand 2
A
187 193anti-parallel
Strand 3
A
200 205anti-parallel
Strand 4
A
208 214anti-parallel
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There are 4 strands in 3AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
222 223first strand
Strand 2
A
234 242anti-parallel
Strand 3
A
248 256anti-parallel
Strand 4
A
259 264anti-parallel
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There are 4 strands in 3BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
229 231first strand
Strand 2
A
234 242anti-parallel
Strand 3
A
248 256anti-parallel
Strand 4
A
259 264anti-parallel
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There are 4 strands in 4A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
274 280first strand
Strand 2
A
285 291anti-parallel
Strand 3
A
300 305anti-parallel
Strand 4
A
310 315anti-parallel
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There are 4 strands in 5A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
351 355first strand
Strand 2
A
360 366anti-parallel
Strand 3
A
376 382anti-parallel
Strand 4
A
394 400anti-parallel
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There are 4 strands in 6A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
409 415first strand
Strand 2
A
420 430anti-parallel
Strand 3
A
439 447anti-parallel
Strand 4
A
91 97anti-parallel
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There are 4 strands in 1B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
113 121first strand
Strand 2
B
126 132anti-parallel
Strand 3
B
154 159anti-parallel
Strand 4
B
170 174anti-parallel
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There are 4 strands in 2B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
177 182first strand
Strand 2
B
187 193anti-parallel
Strand 3
B
200 205anti-parallel
Strand 4
B
208 214anti-parallel
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There are 4 strands in 3AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
222 223first strand
Strand 2
B
234 242anti-parallel
Strand 3
B
248 256anti-parallel
Strand 4
B
259 264anti-parallel
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There are 4 strands in 3BB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
229 231first strand
Strand 2
B
234 242anti-parallel
Strand 3
B
248 256anti-parallel
Strand 4
B
259 264anti-parallel
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There are 4 strands in 4B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
274 280first strand
Strand 2
B
285 291anti-parallel
Strand 3
B
300 305anti-parallel
Strand 4
B
310 315anti-parallel
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There are 4 strands in 5B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
351 355first strand
Strand 2
B
360 366anti-parallel
Strand 3
B
376 382anti-parallel
Strand 4
B
394 400anti-parallel
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There are 4 strands in 6B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
409 415first strand
Strand 2
B
420 430anti-parallel
Strand 3
B
439 447anti-parallel
Strand 4
B
91 97anti-parallel
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