Analysis of interatomic Contacts of Structural Units in PDB entry:
21VQ


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 21VQ entry

There are 9 chains in PDB entry 21VQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
D
 VAL 3ALA 165
E
 ILE 3ALA 139
L
 ILE 3GLU 131
M
 PRO 11GLY 336
N
 GLU 17ASP 213
V
 LEU 631SER 656
h
 ASP 3VAL 495
o
 ASP 3VAL 495
t
 ASP 2GLY 245
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 53 helices in PDB entry 21VQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA1
D
13 21Right-handed alpha
Helix 2
AA2
D
23 28Right-handed alpha
Helix 3
AA3
D
29 56Right-handed alpha
Helix 4
AA4
D
64 74Right-handed alpha
Helix 5
AA5
D
85 92Right-handed alpha
Helix 6
AA6
D
93 97Right-handed 310
Helix 7
AA7
D
105 106Right-handed 310
Helix 8
AA8
D
108 108Right-handed 310
Helix 9
AA9
D
109 113Right-handed alpha
Helix 10
AB1
D
141 152Right-handed alpha
Helix 11
AB2
E
5 11Right-handed alpha
Helix 12
AB3
E
15 23Right-handed alpha
Helix 13
AB4
E
90 94Right-handed 310
Helix 14
AB5
L
27 42Right-handed alpha
Helix 15
AB6
L
67 80Right-handed alpha
Helix 16
AB7
L
122 127Right-handed alpha
Helix 17
AB8
M
90 101Right-handed alpha
Helix 18
AB9
M
147 153Right-handed alpha
Helix 19
AC1
M
165 178Right-handed alpha
Helix 20
AC2
M
202 213Right-handed alpha
Helix 21
AC3
N
33 38Right-handed alpha
Helix 22
AC4
N
49 57Right-handed alpha
Helix 23
AC5
N
86 90Right-handed 310
Helix 24
AC6
N
116 120Right-handed 310
Helix 25
AC7
N
124 139Right-handed alpha
Helix 26
AC8
V
632 651Right-handed alpha
Helix 27
AC9
h
15 32Right-handed alpha
Helix 28
AD1
h
41 66Right-handed alpha
Helix 29
AD2
h
67 69Right-handed 310
Helix 30
AD3
h
74 84Right-handed alpha
Helix 31
AD4
h
146 153Right-handed alpha
Helix 32
AD5
h
180 193Right-handed alpha
Helix 33
AD6
h
197 201Right-handed 310
Helix 34
AD7
h
286 295Right-handed alpha
Helix 35
AD8
h
305 316Right-handed alpha
Helix 36
AD9
h
349 361Right-handed alpha
Helix 37
AE1
h
410 426Right-handed alpha
Helix 38
AE2
h
435 446Right-handed alpha
Helix 39
AE3
h
465 469Right-handed 310
Helix 40
AE4
o
15 32Right-handed alpha
Helix 41
AE5
o
41 69Right-handed alpha
Helix 42
AE6
o
74 85Right-handed alpha
Helix 43
AE7
o
146 153Right-handed alpha
Helix 44
AE8
o
180 193Right-handed alpha
Helix 45
AE9
o
195 200Right-handed 310
Helix 46
AF1
o
286 297Right-handed alpha
Helix 47
AF2
o
305 316Right-handed alpha
Helix 48
AF3
o
349 361Right-handed alpha
Helix 49
AF4
o
410 426Right-handed alpha
Helix 50
AF5
o
435 446Right-handed alpha
Helix 51
AF6
o
465 469Right-handed 310
Helix 52
AF7
t
5 19Right-handed alpha
Helix 53
AF8
t
94 100Right-handed alpha
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There are 32 sheets in PDB entry 21VQ. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1, AB2, AB3, AB4, AB5, AB6, AB7, AB8, AB9, AC1, AC2, AC3, AC4, AC5, AC6, AC7, AC8, AC9, AD1, AD2, AD3, AD4, AD5,

There are 2 strands in AA1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
131 135first strand
Strand 2
D
159 163parallel
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There are 3 strands in AA2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
31 34first strand
Strand 2
E
127 132anti-parallel
Strand 3
E
103 108anti-parallel
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There are 5 strands in AA3 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
81 82first strand
Strand 2
E
65 71anti-parallel
Strand 3
E
52 60anti-parallel
Strand 4
E
41 47anti-parallel
Strand 5
N
197 202parallel
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There are 2 strands in AA4 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
87 94first strand
Strand 2
L
103 109anti-parallel
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There are 10 strands in AA5 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
60 62first strand
Strand 2
M
19 23anti-parallel
Strand 3
M
106 111anti-parallel
Strand 4
M
119 134anti-parallel
Strand 5
M
137 145anti-parallel
Strand 6
M
81 87anti-parallel
Strand 7
M
67 73anti-parallel
Strand 8
M
301 314anti-parallel
Strand 9
M
292 296anti-parallel
Strand 10
M
236 240parallel
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There are 11 strands in AA6 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
60 62first strand
Strand 2
M
19 23anti-parallel
Strand 3
M
106 111anti-parallel
Strand 4
M
119 134anti-parallel
Strand 5
M
137 145anti-parallel
Strand 6
M
81 87anti-parallel
Strand 7
M
67 73anti-parallel
Strand 8
M
301 314anti-parallel
Strand 9
M
320 327anti-parallel
Strand 10
M
276 281anti-parallel
Strand 11
M
251 253anti-parallel
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There are 2 strands in AA7 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
155 160first strand
Strand 2
M
196 201anti-parallel
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There are 3 strands in AA8 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
180 183first strand
Strand 2
M
223 227parallel
Strand 3
M
216 220anti-parallel
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There are 7 strands in AA9 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
N
58 61first strand
Strand 2
N
39 42parallel
Strand 3
N
143 146parallel
Strand 4
N
151 162anti-parallel
Strand 5
N
169 178anti-parallel
Strand 6
N
97 105anti-parallel
Strand 7
N
64 71anti-parallel
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There are 2 strands in AB1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
N
74 75first strand
Strand 2
N
92 93anti-parallel
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There are 7 strands in AB2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
h
202 203first strand
Strand 2
h
207 210anti-parallel
Strand 3
h
139 145anti-parallel
Strand 4
h
237 246anti-parallel
Strand 5
h
127 128anti-parallel
Strand 6
h
118 120anti-parallel
Strand 7
h
261 262anti-parallel
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There are 6 strands in AB3 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
h
202 203first strand
Strand 2
h
207 210anti-parallel
Strand 3
h
139 145anti-parallel
Strand 4
h
237 246anti-parallel
Strand 5
h
96 103anti-parallel
Strand 6
h
269 273anti-parallel
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There are 2 strands in AB4 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
h
112 113first strand
Strand 2
h
133 134anti-parallel
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There are 3 strands in AB5 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
h
169 174first strand
Strand 2
h
157 162anti-parallel
Strand 3
h
229 231anti-parallel
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There are 3 strands in AB6 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
h
321 327first strand
Strand 2
h
340 346anti-parallel
Strand 3
h
366 368parallel
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There are 4 strands in AB7 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
h
321 327first strand
Strand 2
h
340 346anti-parallel
Strand 3
h
383 389parallel
Strand 4
h
371 375anti-parallel
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There are 3 strands in AB8 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
h
452 461first strand
Strand 2
h
391 403anti-parallel
Strand 3
h
480 484parallel
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There are 3 strands in AB9 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
h
452 461first strand
Strand 2
h
391 403anti-parallel
Strand 3
h
490 493parallel
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There are 2 strands in AC1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
o
5 6first strand
Strand 2
o
11 12anti-parallel
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There are 7 strands in AC2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
o
202 203first strand
Strand 2
o
207 210anti-parallel
Strand 3
o
139 145anti-parallel
Strand 4
o
237 246anti-parallel
Strand 5
o
127 129anti-parallel
Strand 6
o
118 121anti-parallel
Strand 7
o
259 262anti-parallel
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There are 6 strands in AC3 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
o
202 203first strand
Strand 2
o
207 210anti-parallel
Strand 3
o
139 145anti-parallel
Strand 4
o
237 246anti-parallel
Strand 5
o
96 103anti-parallel
Strand 6
o
269 273anti-parallel
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There are 2 strands in AC4 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
o
112 113first strand
Strand 2
o
133 134anti-parallel
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There are 3 strands in AC5 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
o
169 174first strand
Strand 2
o
157 162anti-parallel
Strand 3
o
229 231anti-parallel
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There are 3 strands in AC6 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
o
321 327first strand
Strand 2
o
340 346anti-parallel
Strand 3
o
366 368parallel
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There are 4 strands in AC7 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
o
321 327first strand
Strand 2
o
340 346anti-parallel
Strand 3
o
382 389parallel
Strand 4
o
371 376anti-parallel
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There are 3 strands in AC8 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
o
452 461first strand
Strand 2
o
391 403anti-parallel
Strand 3
o
480 493parallel
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There are 5 strands in AC9 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
t
60 64first strand
Strand 2
t
38 43anti-parallel
Strand 3
t
24 33anti-parallel
Strand 4
t
84 89anti-parallel
Strand 5
t
118 122anti-parallel
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There are 2 strands in AD1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
t
47 49first strand
Strand 2
t
53 55anti-parallel
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There are 2 strands in AD2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
t
69 70first strand
Strand 2
t
73 74anti-parallel
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There are 7 strands in AD3 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
t
140 144first strand
Strand 2
t
148 152anti-parallel
Strand 3
t
158 162anti-parallel
Strand 4
t
167 170anti-parallel
Strand 5
t
175 178anti-parallel
Strand 6
t
184 188anti-parallel
Strand 7
t
191 195anti-parallel
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There are 3 strands in AD4 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
t
199 201first strand
Strand 2
t
204 206anti-parallel
Strand 3
t
212 213anti-parallel
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There are 2 strands in AD5 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
t
226 227first strand
Strand 2
t
237 238anti-parallel
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