Contacts of the helix formed by residues 42 - 71 (chain B) in PDB entry 2CHP
Residue contacts within the protein 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). A
short description of the analytical approach
is given at the end of the page.
Note:
Non-standard 3 letter residue
codes indicate a heterogroup. To identify
and analyse, use LPC software
Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC - hydrophobic-hydrophilic contact (destabilizing contact)
+/- - indicates presence/absence of a specific contacts
* - indicates residues forming contacts by their side chain
(including CA atoms)
Residues in contact with HIS 42 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
38B VAL* 5.4 0.4 - - - -
39B LYS 5.2 0.9 + - - +
40B GLY 3.1 1.8 + - - -
41B PRO* 1.3 94.5 - - + +
43B PHE* 1.3 65.1 + - - +
44B PHE 3.1 3.5 + - - -
45B THR* 3.2 4.5 + - - -
46B LEU* 3.0 34.8 + - + +
97B ALA* 5.4 4.9 - - + -
151B TYR* 3.3 36.2 + + + +
1154B PO4 2.1 40.2 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 43 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
35B HIS 4.7 2.2 - - - -
36B TRP 5.6 2.2 - - - -
38B VAL* 3.3 39.7 - - + -
39B LYS* 4.5 3.7 + - - -
40B GLY 2.9 19.9 + - - +
41B PRO 3.3 2.0 - - - -
42B HIS* 1.3 77.2 - - - +
44B PHE* 1.3 95.7 + + + +
47B HIS* 2.8 74.7 + + + +
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 44 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
41B PRO 4.8 5.3 + - - -
42B HIS 3.3 1.0 - - - -
43B PHE* 1.3 108.0 - + + +
45B THR* 1.3 64.6 + - - +
47B HIS* 4.0 2.7 - + - +
48B GLU* 3.1 46.2 + - - +
1154B PO4 5.4 3.8 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with THR 45 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
42B HIS* 3.2 7.5 + - + -
44B PHE* 1.3 80.5 - - - +
46B LEU* 1.3 67.8 + - + +
48B GLU* 3.8 6.8 - - - +
49B LYS* 2.9 31.6 + - + +
151B TYR* 5.8 4.9 - - + -
1154B PO4 3.0 36.9 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 46 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
38B VAL* 3.9 13.2 - - + -
42B HIS* 3.0 23.6 + - + +
45B THR* 1.3 85.4 - - + +
47B HIS* 1.3 60.0 + - - +
49B LYS* 4.2 9.2 - - + -
50B PHE* 2.9 57.3 + - + -
97B ALA* 3.7 22.7 - - + -
101B VAL* 4.2 20.2 - - + -
148B LEU* 5.6 3.6 - - + -
151B TYR* 3.5 40.8 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 47 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
66A GLU* 3.1 32.6 + - - -
35B HIS* 2.8 70.4 + + - -
36B TRP* 5.4 0.7 - + - -
38B VAL* 4.1 8.5 - - + +
43B PHE* 2.8 52.4 + + + +
44B PHE* 4.0 3.4 - + - +
46B LEU* 1.3 76.3 - - - +
48B GLU* 1.3 72.0 + - + +
50B PHE* 3.7 1.7 + - - +
51B GLU* 3.4 6.2 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 48 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
44B PHE* 3.1 39.0 + - - +
45B THR* 3.8 5.0 - - - +
47B HIS* 1.3 84.3 - - + +
49B LYS* 1.3 64.6 + - - +
51B GLU* 3.2 10.5 + - - +
52B GLU* 3.1 30.7 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 49 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
45B THR* 2.9 25.2 + - + +
46B LEU* 3.2 13.7 + - + +
48B GLU* 1.3 72.6 - - - +
50B PHE* 1.3 67.1 + - + +
52B GLU* 3.1 26.0 + - + +
53B LEU* 3.0 44.5 + - + +
144B GLN* 2.8 36.3 + - - +
147B MET* 3.8 17.7 - - - +
148B LEU* 4.9 15.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 50 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
31B LEU* 3.9 24.2 - - + +
34B PHE* 3.6 42.6 - - + -
35B HIS* 3.6 5.6 - - + -
38B VAL* 4.0 11.0 - - + -
46B LEU* 2.9 50.9 + - + +
47B HIS 4.1 3.1 - - - +
49B LYS* 1.3 78.3 - - + +
51B GLU* 1.3 55.7 + - - +
53B LEU* 3.5 6.9 + - + +
54B TYR* 3.1 30.4 + - - +
100B MET* 4.3 17.3 - - + -
101B VAL* 4.3 13.7 - - + -
104B LEU* 3.5 31.9 - - + -
148B LEU* 5.2 4.5 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 51 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
62A ASP* 5.1 5.0 - - - +
35B HIS* 3.7 23.9 + - + -
47B HIS* 3.4 4.9 + - - +
48B GLU* 3.2 11.8 + - - +
49B LYS 3.2 0.8 - - - -
50B PHE* 1.3 76.2 - - - +
52B GLU* 1.3 66.8 + - + +
54B TYR* 3.3 35.4 + - + +
55B ASP* 2.9 34.2 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 52 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
48B GLU* 3.1 17.6 + - - +
49B LYS* 3.1 30.3 + - + +
51B GLU* 1.3 78.7 - - + +
53B LEU* 1.3 59.3 + - + +
55B ASP* 3.4 10.5 + - - +
56B HIS* 3.1 26.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 53 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
24B TRP* 5.5 0.2 - - - -
31B LEU* 3.7 22.3 - - + +
49B LYS* 3.0 42.9 + - + +
50B PHE* 3.7 6.3 - - + +
51B GLU 3.2 0.2 - - - -
52B GLU* 1.3 79.6 - - + +
54B TYR* 1.3 57.0 + - - +
56B HIS* 3.3 16.1 + - + +
57B ALA* 2.9 26.5 + - - +
104B LEU* 4.3 13.2 - - + -
108B TYR* 3.6 31.0 + - + +
140B GLU* 5.8 0.7 - - - +
144B GLN* 3.8 32.8 - - + +
148B LEU* 4.6 7.9 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 54 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
62A ASP* 4.1 12.8 + - - +
28B TYR* 3.3 26.4 - + + +
31B LEU* 3.7 29.4 - - + +
32B HIS* 3.5 44.7 + + + -
35B HIS* 3.4 36.2 + + + -
50B PHE 3.1 19.7 + - - -
51B GLU* 3.3 38.2 + - + +
53B LEU* 1.3 73.4 - - - +
55B ASP* 1.3 74.6 + - - +
57B ALA* 4.1 2.7 - - - -
58B ALA* 2.8 27.2 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 55 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
51B GLU* 2.9 29.5 + - - +
52B GLU* 3.5 12.0 - - - +
54B TYR* 1.3 91.7 - - - +
56B HIS* 1.3 61.9 + - - +
58B ALA* 3.5 6.4 + - - +
59B GLU* 3.2 31.1 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 56 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
24B TRP* 3.6 33.2 - + - -
52B GLU 3.1 13.9 + - - +
53B LEU* 3.5 17.2 + - + +
54B TYR 3.2 0.2 - - - -
55B ASP* 1.3 72.3 - - - +
57B ALA* 1.3 64.5 + - - +
59B GLU* 3.3 19.3 + - + +
60B THR* 2.9 39.5 + - - -
108B TYR* 5.1 6.5 + + - -
137B LEU* 4.2 9.4 - - + +
140B GLU* 3.5 38.4 - - + +
141B VAL* 5.0 2.9 - - + -
144B GLN* 5.9 2.1 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 57 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
24B TRP* 3.7 42.1 - - + +
27B LEU* 4.8 0.7 - - + -
28B TYR* 4.0 15.7 - - - +
31B LEU* 4.4 5.6 - - + -
53B LEU 2.9 16.5 + - - +
54B TYR* 3.2 9.2 + - - +
56B HIS* 1.3 76.9 + - - +
58B ALA* 1.3 57.9 + - - +
60B THR* 3.1 3.6 + - - -
61B VAL* 2.9 33.0 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 58 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
28A TYR* 3.6 23.6 - - - +
32A HIS* 5.3 3.4 + - - +
28B TYR* 3.7 12.2 - - + -
54B TYR 2.8 17.9 + - - +
55B ASP* 3.8 7.4 - - - +
57B ALA* 1.3 75.8 - - - +
59B GLU* 1.3 61.6 + - + +
61B VAL* 3.4 11.0 + - - +
62B ASP* 3.2 21.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 59 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
55B ASP* 3.2 17.4 + - - +
56B HIS* 3.6 24.6 - - + +
57B ALA 3.3 0.2 - - - -
58B ALA* 1.3 76.2 - - + +
60B THR* 1.3 58.4 + - - +
62B ASP* 3.3 6.4 + - - +
63B THR* 3.0 34.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with THR 60 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
24B TRP* 3.5 30.1 - - + -
56B HIS* 2.9 36.0 + - - -
57B ALA 3.1 8.3 + - - -
59B GLU* 1.3 75.3 - - - +
61B VAL* 1.3 65.1 + - - +
63B THR* 3.3 6.3 + - - -
64B ILE* 3.0 27.3 + - + +
133B LEU* 5.7 0.7 - - + -
137B LEU* 3.5 38.5 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 61 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
32A HIS* 4.4 9.4 - - + +
36A TRP* 3.8 23.6 - - + -
21B LEU* 3.5 18.8 - - + +
24B TRP* 3.7 10.8 - - + +
25B PHE* 3.5 50.0 - - + +
28B TYR* 5.3 2.2 - - + -
57B ALA 2.9 18.9 + - - +
58B ALA* 3.4 12.5 + - - +
60B THR* 1.3 76.6 - - - +
62B ASP* 1.3 62.9 + - - +
64B ILE* 3.5 1.1 + - - -
65B ALA* 3.1 23.6 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 62 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
32A HIS* 5.5 2.5 - - + +
35A HIS* 3.5 12.5 + - - -
36A TRP* 3.0 27.2 + - + -
51A GLU* 4.9 5.9 - - - +
54A TYR* 3.9 17.0 + - - +
58B ALA 3.2 11.2 + - - +
59B GLU* 3.8 8.5 - - - +
60B THR 3.2 0.2 - - - -
61B VAL* 1.3 82.6 - - + +
63B THR* 1.3 62.8 + - - +
65B ALA* 3.5 0.5 + - - +
66B GLU* 3.0 48.2 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with THR 63 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
59B GLU* 3.0 18.6 + - - +
60B THR* 3.3 7.6 + - - -
62B ASP* 1.3 73.2 - - - +
64B ILE* 1.3 65.3 + - - +
66B GLU* 3.4 4.4 + - - +
67B ARG* 2.9 23.7 + - - +
133B LEU* 3.9 26.5 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 64 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
17B LEU* 3.5 40.8 - - + +
20B GLN 4.2 9.2 - - - -
21B LEU* 3.9 13.2 - - + +
24B TRP* 3.6 31.9 - - + -
60B THR* 3.0 29.3 + - + +
61B VAL 4.1 2.0 - - - +
63B THR* 1.3 75.7 - - - +
65B ALA* 1.3 59.2 + - - +
67B ARG* 3.2 3.5 + - - +
68B LEU* 2.9 27.9 + - + +
133B LEU* 4.2 17.0 - - + -
134B PHE* 4.2 19.1 - - + -
137B LEU* 4.0 7.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 65 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
36A TRP* 3.3 49.6 - - + +
21B LEU* 4.1 7.8 - - + +
61B VAL 3.1 10.7 + - - +
62B ASP 3.9 0.2 - - - +
64B ILE* 1.3 78.0 - - - +
66B GLU* 1.3 57.7 + - - +
68B LEU* 3.3 4.9 + - - +
69B LEU* 3.0 33.0 + - - +
75B PRO* 4.1 18.2 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 66 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
35A HIS* 3.3 13.6 + - - -
36A TRP* 3.8 10.0 - - + -
47A HIS* 3.0 35.3 + - - -
62B ASP* 3.0 33.5 + - - +
63B THR* 4.1 4.5 - - - +
65B ALA* 1.3 75.6 - - - +
67B ARG* 1.3 58.3 + - - +
69B LEU* 3.5 12.3 + - + +
70B ALA* 3.0 28.8 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 67 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
17B LEU* 4.3 9.2 - - + -
63B THR 2.9 17.5 + - - +
64B ILE 3.7 2.9 - - - +
66B GLU* 1.3 74.1 - - - +
68B LEU* 1.3 63.6 + - - +
70B ALA* 3.2 19.9 + - - +
71B ILE* 3.0 44.0 + - + +
127B ASP* 2.9 25.7 + - - -
129B ALA* 3.4 23.9 - - - +
130B THR* 2.8 27.4 + - - +
133B LEU* 3.6 24.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 68 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
14B GLU* 3.6 35.0 - - + +
17B LEU* 4.0 18.3 - - + +
18B ASN* 3.3 41.1 - - - +
21B LEU* 5.2 1.6 - - + -
64B ILE* 2.9 13.9 + - + +
65B ALA* 3.5 10.1 - - - +
67B ARG* 1.3 76.5 - - - +
69B LEU* 1.3 60.4 + - - +
71B ILE* 3.4 13.9 - - + +
73B GLY* 2.8 43.4 + - - -
74B GLN 3.7 2.5 - - - +
75B PRO* 3.4 24.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 69 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
36A TRP* 3.7 46.9 - - + +
37A TYR* 4.6 7.4 - - + -
65B ALA 3.0 25.7 + - - +
66B GLU* 3.5 15.5 - - + +
68B LEU* 1.3 77.0 - - - +
70B ALA* 1.3 62.5 + - - +
72B GLY* 3.0 15.4 + - - -
73B GLY 3.8 10.2 - - - +
74B GLN* 4.6 6.3 - - - +
75B PRO* 3.2 31.9 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 70 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
66B GLU 3.0 17.7 + - - +
67B ARG* 3.2 25.7 + - - +
69B LEU* 1.3 76.6 - - - +
71B ILE* 1.3 62.1 + - - +
72B GLY 3.3 0.9 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 71 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
10B GLN* 3.0 35.7 + - - +
13B VAL* 4.0 27.1 - - + -
14B GLU* 4.3 2.5 - - + -
17B LEU* 4.3 12.1 - - + -
67B ARG* 3.0 50.1 + - - +
68B LEU* 3.4 29.8 - - + +
70B ALA* 1.3 76.6 - - - +
72B GLY* 1.3 55.7 + - - +
73B GLY 4.3 0.4 - - - +
127B ASP* 3.9 12.6 - - - +
130B THR* 4.3 1.1 - - - +
----------------------------------------------------------
Back to top of page
A short description of the
analytical approach
The contact analysis used in this page
is based upon the approach
developed in:
Sobolev V., Wade R.C., Vriend G.
and Edelman M. PROTEINS (1996)
25, 120-129.
Contact legitimacy depends on the hydrophobic-hydrophilic
properties of the contacting atoms. In order to
define it, for each inter-atomic contact,
eight atom classes have been introduced:
I Hydrophilic - N and O that can donate and accept hydrogen bonds
(e.g., oxygen of hydroxyl group of Ser. or Thr)
II Acceptor - N or O that can only accept a hydrogen bond
III Donor - N that can only donate a hydrogen bond
IV Hydrophobic - Cl, Br, I and all C atoms that are not in
aromatic rings and do not have a covalent bond to
a N or O atom
V Aromatic - C in aromatic rings irrespective of any other
bonds formed by the atom
VI Neutral - C atoms that have a covalent bond to at least one
atom of class I or two or more atoms from class II
or III; atoms; S, F, P, and metal atoms in all cases
VII Neutral-donor - C atoms that have a covalent bond with only one
atom of class III
VIII Neutral-acceptor - C atoms that have a covalent bond with only
one atom of class II
For each pair of contacts the state of legitimacy
is shown below:
Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
Atomic class I II III IV V VI VII VIII
------------------------------------------------------------
I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically
assigned based on the atomic coordinates. However, in
three cases (see below) the automatic assignment
is currently ambiguous. In these
cases, the user is advised to manually analyse
the full list of contacts using
LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are
considered "aromatic" (Class V) if the ring is approximately
planar, and "hydrophobic" (Class IV) or "neutral" (Classes
VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
"hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
"carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).
Please E-mail any
questions and/or suggestions concerning this page to
Vladimir.Sobolev@weizmann.ac.il