Analysis of interatomic Contacts of Structural Units in PDB entry:
2R1A


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 2R1A entry

There are 8 chains in PDB entry 2R1A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 VAL 28VAL 165
B
 THR 29PRO 166
C
 THR 29PRO 166
D
 VAL 28PRO 166
E
 ASP 31SER 167
F
 VAL 28VAL 165
G
 VAL 28VAL 165
H
 VAL 28LEU 164
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 2 helices in PDB entry 2R1A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
30 34Right-handed 310
Helix 2
2
H
30 34Right-handed 310
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There are 24 sheets in PDB entry 2R1A. 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, Q, R, S, T, U, V, W, X,

There are 3 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
37 39first strand
Strand 2
A
59 61anti-parallel
Strand 3
A
66 68anti-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
96 97first strand
Strand 2
A
105 106anti-parallel
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There are 3 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
120 129first strand
Strand 2
A
136 144anti-parallel
Strand 3
A
152 153anti-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
B
37 38first strand
Strand 2
G
162 163anti-parallel
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There are 5 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
73 75first strand
Strand 2
B
51 55anti-parallel
Strand 3
B
42 44anti-parallel
Strand 4
G
151 153anti-parallel
Strand 5
G
140 141anti-parallel
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There are 2 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
58 62first strand
Strand 2
B
65 69anti-parallel
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There are 2 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
88 89first strand
Strand 2
B
111 112anti-parallel
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There are 8 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
94 97first strand
Strand 2
B
105 108anti-parallel
Strand 3
B
124 130anti-parallel
Strand 4
B
134 140anti-parallel
Strand 5
B
159 163anti-parallel
Strand 6
D
36 40anti-parallel
Strand 7
D
58 61anti-parallel
Strand 8
D
67 69anti-parallel
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There are 5 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
120 121first strand
Strand 2
B
142 144anti-parallel
Strand 3
B
149 153anti-parallel
Strand 4
D
42 46anti-parallel
Strand 5
D
51 55anti-parallel
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There are 3 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
43 44first strand
Strand 2
C
53 61anti-parallel
Strand 3
C
67 73anti-parallel
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There are 5 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
43 44first strand
Strand 2
C
53 61anti-parallel
Strand 3
C
36 39anti-parallel
Strand 4
H
161 164anti-parallel
Strand 5
H
136 137anti-parallel
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There are 13 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
85 88first strand
Strand 2
C
112 115anti-parallel
Strand 3
C
120 123anti-parallel
Strand 4
C
140 144anti-parallel
Strand 5
C
149 153anti-parallel
Strand 6
E
42 46anti-parallel
Strand 7
E
51 58anti-parallel
Strand 8
E
69 75anti-parallel
Strand 9
E
85 89anti-parallel
Strand 10
E
111 115anti-parallel
Strand 11
E
120 124anti-parallel
Strand 12
E
140 144anti-parallel
Strand 13
E
149 150anti-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
C
127 131first strand
Strand 2
C
134 138anti-parallel
Strand 3
C
160 162anti-parallel
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There are 2 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
73 75first strand
Strand 2
D
85 87anti-parallel
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There are 2 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
123 124first strand
Strand 2
D
140 141anti-parallel
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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
D
136 137first strand
Strand 2
D
160 161anti-parallel
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There are 3 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
36 37first strand
Strand 2
F
58 62anti-parallel
Strand 3
F
67 69anti-parallel
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There are 2 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
42 45first strand
Strand 2
F
52 55anti-parallel
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There are 2 strands in S sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
85 86first strand
Strand 2
F
114 115anti-parallel
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There are 3 strands in T sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
160 163first strand
Strand 2
H
36 39anti-parallel
Strand 3
H
60 62anti-parallel
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There are 5 strands in U sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
40 44first strand
Strand 2
G
51 58anti-parallel
Strand 3
G
73 75anti-parallel
Strand 4
G
85 87anti-parallel
Strand 5
G
114 115anti-parallel
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There are 2 strands in V sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
61 62first strand
Strand 2
G
65 66anti-parallel
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There are 2 strands in W sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
95 98first strand
Strand 2
H
104 107anti-parallel
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There are 3 strands in X sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
121 124first strand
Strand 2
H
140 144anti-parallel
Strand 3
H
149 150anti-parallel
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