Contacts of the helix formed by residues 23 - 55 (chain C) in PDB entry 1TKP
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 ASP 23 (chain C).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
16C GLY* 4.2 0.4 - - - -
21C ARG 4.1 1.4 - - - -
22C MET* 1.4 76.2 - - - +
24C ALA* 1.3 53.9 + - - +
25C ASP* 3.2 15.2 - - - +
26C ARG* 3.0 50.8 + - - +
27C ALA* 2.9 29.6 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 24 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
14C VAL 3.8 20.0 - - - +
15C GLU* 3.9 12.4 + - - +
16C GLY* 3.9 14.6 - - - +
22C MET 4.0 0.6 + - - -
23C ASP* 1.3 70.5 - - - +
25C ASP* 1.3 60.6 + - - +
27C ALA* 4.0 0.4 - - - +
28C GLU* 2.9 32.6 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 25 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
23C ASP* 3.2 12.2 + - - +
24C ALA* 1.3 79.8 - - - +
26C ARG* 1.3 68.5 + - - +
28C GLU* 3.2 12.4 + - - +
29C GLN* 3.3 28.7 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 26 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
131A GLU* 5.8 0.6 + - - -
134A ARG* 4.5 8.1 - - - +
21C ARG 3.2 25.5 + - - -
22C MET* 3.4 28.5 - - - +
23C ASP* 3.0 32.0 + - - +
25C ASP* 1.3 81.8 - - - +
27C ALA* 1.3 65.4 + - - +
28C GLU 3.0 1.2 + - - -
29C GLN* 3.0 24.6 + - - +
30C CYS* 3.3 11.2 + - - -
143C LEU* 3.2 51.8 + - + +
144C GLY* 4.3 9.3 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 27 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
14C VAL* 3.9 2.7 - - + -
16C GLY* 3.6 13.7 - - - +
22C MET* 3.9 15.6 - - + +
23C ASP 2.9 18.3 + - - +
24C ALA 4.0 2.7 - - - +
26C ARG* 1.3 77.4 - - - +
28C GLU* 1.3 55.6 + - - +
30C CYS* 3.2 3.2 + - - +
31C VAL* 2.9 33.3 + - - +
88C LEU* 3.3 35.9 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 28 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
12C GLY 4.3 13.3 - - - +
14C VAL* 3.8 23.5 - - + +
24C ALA 2.9 19.5 + - - +
25C ASP* 3.9 4.5 - - - +
26C ARG 3.1 0.4 - - - -
27C ALA* 1.3 72.8 - - - +
29C GLN* 1.3 70.8 + - + +
31C VAL* 4.4 0.2 - - - -
32C ASP* 2.9 47.2 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLN 29 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
25C ASP* 3.3 32.5 + - - +
26C ARG* 3.0 13.5 + - - +
28C GLU* 1.3 83.3 - - + +
30C CYS* 1.4 59.4 + - - +
32C ASP* 3.5 5.1 + - - +
33C ALA 3.5 12.1 + - - -
139C LEU* 3.7 24.7 - - + +
143C LEU* 3.5 39.0 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with CYS 30 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
22C MET* 5.7 1.6 - - - -
26C ARG* 3.3 8.2 + - - -
27C ALA* 3.2 4.9 + - - +
29C GLN* 1.4 72.9 - - - +
31C VAL* 1.3 63.6 + - - +
33C ALA* 3.1 4.8 + - - +
34C LEU* 2.7 40.5 + - + +
88C LEU* 3.5 20.0 - - + -
139C LEU* 4.6 6.7 - - - -
140C ALA* 4.5 11.9 - - - -
143C LEU* 4.0 20.2 - - - -
145C ASP* 3.3 32.8 - - - +
148C THR* 4.5 2.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 31 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
14C VAL* 3.6 34.8 - - + -
27C ALA 2.9 21.0 + - - +
28C GLU 3.9 2.7 - - - +
30C CYS* 1.3 78.8 - - - +
32C ASP* 1.3 61.4 + - - +
34C LEU* 4.3 0.9 - - - +
35C ASN* 2.8 38.8 + - - +
85C VAL* 3.6 36.3 - - + +
88C LEU* 3.6 24.9 - - + +
90C GLY* 4.4 2.0 - - - -
91C VAL 5.1 0.4 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 32 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
12C GLY 5.7 0.3 - - - +
14C VAL* 4.8 3.1 - - - +
28C GLU* 2.9 48.1 + - - +
29C GLN* 3.9 5.4 - - - +
30C CYS 3.2 0.2 - - - -
31C VAL* 1.3 82.7 - - - +
33C ALA* 1.3 62.6 + - - +
35C ASN* 4.2 4.0 - - - +
36C ALA* 3.3 21.1 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 33 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
29C GLN 3.5 9.1 + - - +
30C CYS* 3.1 7.7 + - - +
32C ASP* 1.3 77.8 - - - +
34C LEU* 1.3 66.6 + - + +
36C ALA* 3.3 1.9 + - - -
37C ASP* 3.0 17.7 + - - -
136C HIS* 3.3 49.7 + - + +
139C LEU* 4.1 13.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 34 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
30C CYS* 2.7 25.0 + - + +
33C ALA* 1.3 75.5 - - + +
35C ASN* 1.3 59.3 + - - +
37C ASP* 3.2 8.4 + - - +
38C LEU* 2.8 27.0 + - - +
81C LEU* 4.1 17.0 - - + +
84C ARG* 3.7 33.2 - - + -
85C VAL* 3.5 19.3 - - + -
88C LEU* 3.8 18.8 - - + -
148C THR* 3.9 13.0 - - + -
151C MET* 5.9 0.9 - - - -
152C LEU* 3.5 41.5 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 35 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
31C VAL* 2.8 21.8 + - - +
32C ASP* 4.2 4.5 - - - +
34C LEU* 1.3 81.5 - - - +
36C ALA* 1.3 62.7 + - - +
38C LEU* 3.3 11.3 + - - +
39C ALA* 3.1 17.2 + - - +
85C VAL* 4.0 12.5 - - - +
91C VAL 2.9 24.8 + - - -
92C PRO* 3.3 8.0 - - - +
93C HIS* 3.0 62.2 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 36 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
32C ASP 3.3 15.4 + - - +
33C ALA* 3.3 5.5 + - - +
34C LEU 3.2 0.8 - - - -
35C ASN* 1.3 79.7 - - - +
37C ASP* 1.4 64.1 + - - +
39C ALA* 3.3 6.3 + - - +
40C ASN* 3.3 27.3 + - - +
93C HIS* 5.2 2.5 - - - -
102C GLU* 4.8 9.9 - - - +
136C HIS* 5.1 5.4 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 37 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
33C ALA 3.0 9.1 + - - +
34C LEU* 3.3 11.1 - - - +
36C ALA* 1.4 74.1 - - - +
38C LEU* 1.3 65.9 + - - +
39C ALA 3.1 0.3 + - - -
40C ASN* 3.1 7.8 + - - +
41C VAL* 2.8 29.3 + - + +
81C LEU* 3.6 18.8 - - + +
129C ILE* 4.9 4.0 - - - +
132C ALA* 4.0 13.2 - - - +
133C THR* 3.9 17.8 + - - -
136C HIS* 2.9 36.4 + - - +
152C LEU* 4.0 17.8 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 38 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
34C LEU 2.8 16.2 + - - +
35C ASN* 3.3 22.2 + - - +
37C ASP* 1.3 73.0 - - - +
39C ALA* 1.3 57.3 + - - +
41C VAL* 3.4 1.0 + - - -
42C TYR* 2.9 42.2 + - + +
78C ALA* 3.3 35.7 - - - +
81C LEU* 3.9 11.0 - - + -
82C ALA* 3.5 14.4 - - + -
85C VAL* 5.5 0.4 - - + -
92C PRO* 3.5 32.3 - - + -
93C HIS* 3.7 13.2 - - + +
99C LEU* 4.0 9.4 - - + -
53D TRP* 4.7 1.1 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 39 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
35C ASN 3.1 9.3 + - - +
36C ALA 3.7 7.0 - - - +
37C ASP 3.1 0.8 - - - -
38C LEU* 1.3 80.2 - - - +
40C ASN* 1.3 63.4 + - - +
42C TYR* 3.4 1.7 + - - +
43C VAL* 3.1 28.6 + - - +
93C HIS* 4.6 1.6 - - + -
99C LEU* 3.3 33.5 - - + +
102C GLU* 3.7 14.8 - - + +
103C ALA* 3.6 16.2 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 40 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
36C ALA* 3.3 15.0 + - - +
37C ASP* 3.1 11.5 + - - +
39C ALA* 1.3 78.5 - - - +
41C VAL* 1.3 59.6 + - - +
43C VAL* 3.2 4.2 + - - +
44C LEU* 2.9 28.2 + - - +
103C ALA* 3.1 7.4 - - - +
104C SER* 2.7 46.2 + - - +
105C VAL* 3.0 24.7 + - + +
128C ASP* 5.6 1.6 - - - +
129C ILE* 3.8 25.1 - - + +
132C ALA* 5.6 5.1 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 41 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
37C ASP* 2.8 25.5 + - + +
38C LEU 4.0 2.5 - - - +
40C ASN* 1.3 72.1 - - - +
42C TYR* 1.3 58.8 + - - +
44C LEU* 3.3 4.8 + - + +
45C TYR* 2.9 23.9 + - - +
74C ALA* 3.1 37.2 - - + +
77C VAL* 4.2 9.6 - - + -
78C ALA* 3.8 14.8 - - + +
81C LEU* 3.9 17.7 - - + -
129C ILE* 4.0 33.0 - - + -
159C LEU* 5.0 4.5 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 42 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
38C LEU* 2.9 24.8 + - + +
39C ALA 4.0 1.1 - - - +
41C VAL* 1.3 76.2 - - - +
43C VAL* 1.3 64.6 + - - +
45C TYR* 3.4 23.2 - + + +
46C HIS* 3.0 30.2 + - + -
75C GLU* 4.5 5.6 + - + +
78C ALA* 3.7 27.4 - - + -
79C ASP 5.5 0.2 + - - -
99C LEU* 3.8 28.9 - - + -
45D TYR* 2.8 31.4 + + - -
46D HIS* 3.4 28.0 - + + -
49D LYS* 3.5 19.6 - - - +
53D TRP* 3.7 25.5 - + - -
96D PRO* 5.2 0.7 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 43 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
39C ALA 3.1 15.8 + - - +
40C ASN 3.2 3.6 + - - +
42C TYR* 1.3 74.6 - - - +
44C LEU* 1.3 65.3 + - - +
46C HIS* 3.2 2.1 + - - +
47C GLN* 2.7 31.3 + - - +
99C LEU* 4.1 1.8 - - + +
100C GLN* 3.9 24.5 - - + +
103C ALA* 3.7 16.8 - - + -
105C VAL* 3.4 31.9 - - + -
107C VAL* 4.3 15.5 - - + -
125C ILE* 4.9 4.0 - - + -
96D PRO* 4.3 19.7 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 44 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
40C ASN 2.9 13.9 + - - +
41C VAL* 3.3 10.1 - - + +
43C VAL* 1.3 77.0 - - - +
45C TYR* 1.3 64.8 + - - +
47C GLN* 3.0 7.1 + - + +
48C LEU* 2.8 41.7 + - + +
74C ALA* 4.4 13.2 - - + -
122C ASP* 4.6 5.4 - - + +
125C ILE* 3.6 28.9 - - + -
126C TYR* 3.7 49.1 - - + -
129C ILE* 3.4 21.8 - - + -
159C LEU* 4.9 5.8 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 45 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
41C VAL 2.9 16.5 + - - +
42C TYR* 3.4 28.3 - + + +
43C VAL 3.2 0.2 - - - -
44C LEU* 1.3 73.6 - - - +
46C HIS* 1.3 96.0 + + - +
48C LEU* 3.1 5.8 + - - +
49C LYS* 2.9 45.8 + - + +
71C ALA* 3.4 24.9 - - + +
72C GLU 5.1 0.2 - - - -
74C ALA* 4.2 13.9 - - + +
75C GLU* 3.8 18.8 - - + +
42D TYR* 2.5 34.0 + + - -
45D TYR* 4.3 6.8 + + - -
75D GLU* 2.5 36.7 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 46 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
42C TYR* 3.0 26.6 + + + +
43C VAL 3.8 2.5 - - - +
45C TYR* 1.3 95.3 - + - +
47C GLN* 1.3 62.9 + - - +
49C LYS* 3.5 6.2 - - - +
50C LYS* 3.0 21.8 + - - +
53C TRP* 5.4 1.9 - - - -
99C LEU* 6.2 0.2 - - + -
42D TYR* 3.5 36.4 - + - -
46D HIS* 2.8 30.9 + + - -
94D ALA* 3.6 20.5 + - - +
95D SER* 4.9 0.4 - - - -
96D PRO* 3.8 24.7 - - + +
99D LEU* 3.5 26.8 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLN 47 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
43C VAL 2.7 20.2 + - - +
44C LEU* 3.6 3.6 - - - +
46C HIS* 1.3 78.2 - - - +
48C LEU* 1.3 63.5 + - - +
50C LYS* 3.2 9.5 + - + +
51C HIS* 3.0 32.0 + - + +
106C ASP 4.7 0.6 + - - -
107C VAL* 3.8 9.2 - - + +
108C GLU* 3.0 41.1 + - - +
121C ASN* 3.8 20.6 - - - +
122C ASP* 3.2 23.0 + - - +
125C ILE* 3.2 28.0 - - + +
94D ALA* 6.2 0.2 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 48 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
44C LEU* 2.8 39.5 + - + +
45C TYR 3.6 3.1 - - - +
47C GLN* 1.3 70.5 - - - +
49C LYS* 1.3 62.1 + - - +
51C HIS* 3.1 3.4 + - - +
52C HIS* 2.7 32.9 + - - +
67C LEU* 3.9 27.9 - - + +
70C ALA* 3.6 26.5 - - + +
71C ALA* 3.6 15.3 - - - +
74C ALA* 4.3 2.7 - - + -
122C ASP* 3.9 19.3 - - + +
126C TYR* 3.2 33.4 - - + +
166C ILE* 5.1 1.3 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 49 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
45C TYR* 2.9 33.6 + - + +
46C HIS* 3.5 7.4 - - - +
48C LEU* 1.3 77.2 - - - +
50C LYS* 1.3 65.7 + - - +
52C HIS* 3.2 12.2 + - + +
53C TRP* 2.8 56.5 + - + +
68C GLY* 5.9 1.8 + - - -
71C ALA* 3.8 18.7 - - + +
42D TYR* 3.7 19.2 + - + +
75D GLU* 4.2 17.6 + - - +
79D ASP* 3.1 37.8 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 50 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
46C HIS 3.0 14.9 + - - +
47C GLN* 3.3 13.9 - - + +
48C LEU 3.1 0.2 - - - -
49C LYS* 1.3 80.1 - - - +
51C HIS* 1.3 65.0 + - + +
53C TRP* 3.2 13.1 + - + +
54C ASN* 2.8 44.2 + - - +
108C GLU* 2.5 35.7 + - + +
109C ASP 2.7 29.6 + - - -
110C GLU* 4.3 6.6 + - - +
111C ASP 3.0 19.4 + - - -
112C VAL* 4.6 10.3 - - - +
91D VAL* 6.0 1.1 - - - -
92D PRO 5.6 0.4 - - - +
94D ALA* 3.6 28.2 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 51 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
47C GLN* 3.0 21.7 + - + +
48C LEU* 3.9 2.7 - - - +
50C LYS* 1.3 87.9 - - + +
52C HIS* 1.3 57.3 + - - +
54C ASN* 4.4 4.0 - - + +
55C VAL* 2.8 39.0 + - - +
67C LEU* 3.6 16.6 - - + -
108C GLU* 2.8 40.9 + - - -
115C ILE* 5.1 3.8 - - + -
118C SER* 3.3 33.8 - - - -
119C LEU* 5.2 0.2 - - + -
122C ASP* 2.5 43.9 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 52 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
48C LEU 2.7 22.7 + - - +
49C LYS* 3.2 13.3 + - - +
51C HIS* 1.3 72.8 - - - +
53C TRP* 1.3 72.5 + + - +
54C ASN 3.4 0.2 + - - -
55C VAL* 3.5 7.5 - - - +
64C HIS* 2.6 76.3 + + - -
65C LEU* 5.3 0.4 - - + -
67C LEU* 3.7 17.8 - - + +
68C GLY* 3.3 20.5 + - - +
79D ASP* 3.9 3.4 - - - -
83D GLU* 2.8 10.8 + - - -
301D FE 2.3 30.4 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with TRP 53 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
46C HIS* 5.4 2.2 - - - -
49C LYS* 2.8 42.2 + - + +
50C LYS* 3.2 24.0 + - + +
52C HIS* 1.3 79.0 - + - +
54C ASN* 1.3 59.9 + - - +
55C VAL 4.8 1.6 - - - +
64C HIS* 5.0 2.2 + - - -
38D LEU* 4.6 0.9 - - + -
42D TYR* 3.8 28.9 - + - -
78D ALA 4.7 0.2 - - - -
79D ASP* 2.9 24.3 + - - -
82D ALA* 3.3 28.5 - - + +
83D GLU* 3.4 36.8 - - + +
86D GLN* 3.4 22.8 + - + +
92D PRO* 3.8 28.9 - - + -
93D HIS 3.6 23.8 - - - -
94D ALA* 4.4 8.1 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 54 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
50C LYS* 2.8 44.7 + - - +
51C HIS* 3.2 4.8 + - + +
53C TRP* 1.3 83.3 - - - +
55C VAL* 1.3 68.5 + - - +
56C GLU* 3.2 19.3 + - - +
112C VAL* 3.7 41.2 - - + +
8D ARG* 5.6 1.4 + - - -
86D GLN* 3.3 23.7 - - - +
90D GLY 4.7 1.6 - - - +
91D VAL* 4.9 0.5 - - - +
92D PRO* 3.6 19.4 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 55 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
51C HIS 2.8 19.0 + - - +
52C HIS 3.5 14.6 - - - +
53C TRP 4.8 1.7 - - - +
54C ASN* 1.3 77.1 - - - +
56C GLU* 1.3 67.6 + - - +
60C PHE* 3.6 24.2 - - - +
63C LEU* 3.8 23.3 - - + -
64C HIS* 3.9 28.4 + - + +
67C LEU* 4.2 3.8 - - + -
115C ILE* 3.6 35.0 - - + -
86D GLN* 5.8 0.5 + - - -
----------------------------------------------------------
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