Analysis of interatomic Contacts of Structural Units in PDB entry:
3K4A


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 3K4A entry

There are 2 chains in PDB entry 3K4A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER -1GLN 603
B
 SER -1GLN 603
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 19 helices in PDB entry 3K4A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
33 37Right-handed 310
Helix 2
2
A
57 62Right-handed alpha
Helix 3
3
A
118 122Right-handed 310
Helix 4
4
A
307 322Right-handed alpha
Helix 5
5
A
381 400Right-handed alpha
Helix 6
6
A
420 436Right-handed alpha
Helix 7
7
A
468 473Right-handed alpha
Helix 8
8
A
478 497Right-handed alpha
Helix 9
9
A
522 538Right-handed alpha
Helix 10
10
A
579 591Right-handed alpha
Helix 11
11
B
57 62Right-handed alpha
Helix 12
12
B
307 322Right-handed alpha
Helix 13
13
B
338 345Right-handed alpha
Helix 14
14
B
381 400Right-handed alpha
Helix 15
15
B
420 433Right-handed alpha
Helix 16
16
B
455 460Right-handed alpha
Helix 17
17
B
477 497Right-handed alpha
Helix 18
18
B
522 538Right-handed alpha
Helix 19
19
B
578 587Right-handed alpha
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There are 16 sheets in PDB entry 3K4A. 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, P,

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
10 13first strand
Strand 2
A
174 179anti-parallel
Strand 3
A
83 88anti-parallel
Strand 4
A
114 115anti-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
43 45first strand
Strand 2
A
19 23anti-parallel
Strand 3
A
66 74anti-parallel
Strand 4
A
127 135anti-parallel
Strand 5
A
94 99anti-parallel
Strand 6
A
103 107anti-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
146 150first strand
Strand 2
A
156 160anti-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
184 191first strand
Strand 2
A
201 207anti-parallel
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There are 4 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
225 227first strand
Strand 2
A
213 216anti-parallel
Strand 3
A
250 257anti-parallel
Strand 4
A
262 269anti-parallel
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There are 3 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
274 276first strand
Strand 2
A
281 283anti-parallel
Strand 3
A
286 287anti-parallel
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There are 8 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
441 444first strand
Strand 2
A
405 412parallel
Strand 3
A
347 351parallel
Strand 4
A
325 328parallel
Strand 5
A
290 295parallel
Strand 6
A
543 548parallel
Strand 7
A
500 504parallel
Strand 8
A
463 466parallel
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There are 5 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
43 45first strand
Strand 2
B
19 24anti-parallel
Strand 3
B
66 71anti-parallel
Strand 4
B
130 135anti-parallel
Strand 5
B
94 95anti-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
B
83 86first strand
Strand 2
B
176 179anti-parallel
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There are 2 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
98 99first strand
Strand 2
B
102 103anti-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
B
146 150first strand
Strand 2
B
156 160anti-parallel
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There are 4 strands in L 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
211 218anti-parallel
Strand 3
B
250 257anti-parallel
Strand 4
B
263 269anti-parallel
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There are 3 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
275 277first strand
Strand 2
B
280 283anti-parallel
Strand 3
B
286 287anti-parallel
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There are 7 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
441 442first strand
Strand 2
B
405 409parallel
Strand 3
B
347 350parallel
Strand 4
B
325 327parallel
Strand 5
B
293 294parallel
Strand 6
B
543 552parallel
Strand 7
B
500 505parallel
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There are 7 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
441 442first strand
Strand 2
B
405 409parallel
Strand 3
B
347 350parallel
Strand 4
B
325 327parallel
Strand 5
B
293 294parallel
Strand 6
B
543 552parallel
Strand 7
B
569 571parallel
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There are 2 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
444 445first strand
Strand 2
B
464 465parallel
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