Contacts of the helix formed by residues 77 - 97 (chain C) in PDB entry 5A31
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 THR 77 (chain C).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
75C PRO 4.0 8.3 - - - +
76C ILE* 1.3 82.9 - - - +
78C GLU* 1.3 74.2 + - - +
79C GLU* 3.5 18.9 + - - +
80C ASP* 3.4 23.7 + - - +
81C ALA* 3.2 22.0 + - - +
67P LEU* 4.2 7.6 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 78 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
77C THR* 1.3 80.8 + - - +
79C GLU* 1.3 68.2 + - + +
81C ALA* 3.3 4.7 + - - +
82C GLN* 3.0 29.9 + - - +
67P LEU* 4.2 18.4 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 79 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
77C THR* 3.9 11.2 + - - +
78C GLU* 1.3 84.7 - - + +
80C ASP* 1.3 62.6 + - - +
82C GLN* 3.3 12.6 + - - +
83C ASP* 2.9 37.0 + - - +
110C ASN 4.6 8.7 - - - +
111C SER* 4.2 25.4 + - - +
112C LYS* 4.7 14.1 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 80 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
76C ILE* 3.6 22.7 - - + +
77C THR* 3.4 33.4 + - - +
78C GLU 3.3 0.4 - - - -
79C GLU* 1.3 78.4 - - - +
81C ALA* 1.3 61.9 + - - +
83C ASP* 3.7 3.4 - - - -
84C MET* 2.9 35.1 + - + +
111C SER* 3.8 14.5 + - - -
113C LYS* 3.6 30.1 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 81 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
76C ILE* 4.7 0.8 - - - +
77C THR 3.2 12.4 + - - +
78C GLU 3.3 8.9 + - - +
80C ASP* 1.3 74.8 - - - +
82C GLN* 1.3 63.9 + - - +
84C MET* 3.4 23.5 + - - +
85C ASP* 5.0 0.9 + - - -
65P LEU 4.2 12.2 - - - +
66P PRO 4.6 1.8 - - - +
67P LEU* 3.6 45.5 - - + +
70P LEU* 4.7 7.1 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLN 82 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
78C GLU 3.0 12.5 + - - +
79C GLU* 3.5 18.1 - - - +
81C ALA* 1.3 77.9 - - - +
83C ASP* 1.3 68.9 + - - +
84C MET 3.7 0.2 + - - -
85C ASP* 4.9 3.3 + - - +
86C ALA* 5.6 0.9 + - - +
110C ASN* 6.3 1.6 - - - +
65P LEU 5.7 0.9 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 83 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
79C GLU* 2.9 19.5 + - - +
80C ASP* 3.7 3.4 - - - +
82C GLN* 1.3 91.5 + - - +
84C MET* 1.3 55.0 + - - +
85C ASP 3.1 3.0 + - - -
86C ALA* 3.2 8.3 + - + +
87C TYR* 2.8 40.0 + - + +
109C CYS* 3.1 32.8 - - + +
110C ASN 3.4 3.7 + - - -
111C SER* 3.1 31.6 + - - -
114C ALA* 3.8 5.9 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with MET 84 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
76C ILE* 6.0 2.2 - - - -
80C ASP* 2.9 20.6 + - - +
81C ALA 3.5 11.7 - - - +
82C GLN 3.4 2.2 - - - -
83C ASP* 1.3 76.2 - - - +
85C ASP* 1.3 67.6 + - - +
87C TYR* 4.0 3.0 - - - +
88C THR* 3.0 50.6 + - + +
37P LEU* 3.6 40.4 - - + -
65P LEU* 6.5 0.2 - - + -
70P LEU* 3.7 37.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 85 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
81C ALA 5.9 0.7 - - - -
82C GLN 4.9 2.6 + - - +
83C ASP 3.2 0.6 - - - -
84C MET* 1.3 83.6 - - - +
86C ALA* 1.3 68.8 - - - +
88C THR* 3.1 16.8 + - - -
89C LEU* 3.2 15.6 + - - +
33P LYS* 2.5 42.1 + - - -
37P LEU* 4.3 5.9 - - - +
56P ALA 5.3 0.2 - - - +
59P ALA* 4.4 6.5 - - - +
60P PHE* 3.8 25.9 - - + +
62P LEU 4.2 5.7 - - - +
64P ALA* 3.8 13.1 - - - +
65P LEU* 5.1 1.1 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 86 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
82C GLN 5.7 0.9 - - - +
83C ASP* 3.2 12.4 + - - +
85C ASP* 1.3 82.1 - - - +
87C TYR* 1.3 57.5 + - - +
89C LEU* 3.6 2.7 - - - +
90C ALA* 2.8 33.1 + - - +
105C PHE* 4.2 21.7 - - - +
106C LEU* 4.5 6.5 - - + -
109C CYS* 5.2 7.9 - - + -
60P PHE* 4.2 17.9 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 87 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
45C GLU* 3.4 43.7 + - + +
46C ARG* 3.9 10.0 + - - -
83C ASP* 2.8 27.6 + - + +
84C MET* 4.0 4.5 - - - +
86C ALA* 1.3 73.7 - - - +
88C THR* 1.3 63.3 + - + +
90C ALA* 3.1 2.6 + - - +
91C LYS* 2.8 48.3 + - + +
106C LEU* 4.0 13.9 - - + +
111C SER* 5.9 0.9 - - - -
113C LYS* 3.7 32.7 - - + +
114C ALA* 4.1 22.0 - - + -
117C LEU* 4.8 10.8 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with THR 88 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
84C MET* 3.0 45.0 + - + +
85C ASP* 3.1 7.4 + - - -
87C TYR* 1.3 86.0 - - + +
89C LEU* 1.3 69.9 + - - +
91C LYS* 3.6 4.2 + - - +
92C ALA* 3.1 22.9 + - - +
37P LEU* 3.9 19.3 - - + +
40P ALA* 5.9 4.3 - - + -
44P ARG* 5.6 7.3 - - - +
56P ALA* 4.3 9.6 + - - +
59P ALA* 5.7 2.1 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 89 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
85C ASP 3.2 12.9 + - - +
86C ALA 3.6 1.6 - - - +
88C THR* 1.3 82.7 + - - +
90C ALA* 1.3 62.8 + - - +
92C ALA* 3.2 4.9 + - - +
93C TYR* 3.1 41.9 + - + -
105C PHE* 3.8 26.7 - - + -
56P ALA* 3.7 18.8 - - + +
57P GLU* 3.0 30.1 - - - +
60P PHE* 3.3 45.3 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 90 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
86C ALA 2.8 19.0 + - - +
87C TYR 3.5 3.4 - - - +
89C LEU* 1.3 79.1 - - - +
91C LYS* 1.3 60.0 + - - +
93C TYR* 3.3 1.8 + - - +
94C PHE* 2.8 29.0 + - - +
102C ALA* 3.3 22.4 - - - +
105C PHE* 4.2 6.5 - - + -
106C LEU* 3.6 35.9 - - + -
117C LEU* 5.0 1.3 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 91 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
44C ARG* 3.6 16.6 + - - +
45C GLU* 3.0 29.8 - - - +
46C ARG 4.4 0.2 - - - -
47C GLY* 4.2 12.6 - - - +
49C LEU* 5.7 3.8 - - - +
87C TYR* 2.8 32.3 + - + +
88C THR* 3.8 5.6 - - - +
90C ALA* 1.3 72.6 - - - +
92C ALA* 1.3 58.6 + - - +
94C PHE* 3.1 19.9 - - + +
95C ASP* 2.9 42.5 + - - +
117C LEU* 3.9 19.3 - - + +
44P ARG* 4.7 22.5 - - - +
95P ASP* 5.7 2.4 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 92 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
88C THR 3.1 15.5 + - - +
89C LEU 3.5 8.5 - - - +
90C ALA 3.2 0.2 - - - -
91C LYS* 1.3 75.5 - - - +
93C TYR* 1.3 62.5 + - - +
95C ASP* 3.0 16.3 + - - +
96C VAL* 3.2 18.8 + - - +
44P ARG* 5.3 9.8 - - - +
49P LEU* 5.2 1.2 - - - +
52P SER* 4.4 11.9 - - - +
53P LYS* 3.9 30.5 - - + +
56P ALA* 4.6 3.1 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 93 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
89C LEU* 3.1 44.4 + - + -
90C ALA 3.6 6.1 - - - +
92C ALA* 1.3 75.2 - - - +
94C PHE* 1.3 63.1 + - - +
96C VAL* 3.1 10.1 + - - +
98C GLU* 2.8 62.2 + - + +
101C ARG* 2.4 35.5 + - + -
102C ALA* 4.1 11.2 - - + +
105C PHE* 3.5 23.1 - + - -
53P LYS* 3.3 31.3 + - + +
57P GLU* 2.7 29.2 + - - +
263P SER* 6.0 0.2 - - - -
293P ASP* 4.5 1.0 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 94 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
46C ARG 4.6 2.5 - - - -
47C GLY* 4.2 20.4 - - - -
49C LEU* 5.6 7.6 - - + -
90C ALA 2.8 14.5 + - - +
91C LYS* 3.1 28.7 - - + +
93C TYR* 1.3 77.7 - - - +
95C ASP* 1.3 62.0 + - - +
97C LYS* 2.8 23.8 - - + +
98C GLU 4.6 2.5 - - - -
99C TYR* 3.5 38.5 - + - -
102C ALA* 3.8 8.2 - - + +
117C LEU* 3.5 27.6 - - + -
120C TYR* 3.8 28.7 - + - -
121C SER* 4.1 9.6 - - - -
124C LEU* 3.8 9.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 95 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
49C LEU* 5.8 5.7 - - - +
91C LYS* 2.9 29.1 + - - +
92C ALA* 3.0 12.1 + - - +
94C PHE* 1.3 81.9 - - - +
96C VAL* 1.3 60.5 + - - +
97C LYS* 3.5 8.7 - - - +
44P ARG* 4.7 15.5 - - + +
47P GLY* 6.1 0.5 - - - -
49P LEU* 3.1 34.1 - - + +
91P LYS* 5.1 3.8 + - - -
95P ASP* 4.6 20.7 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 96 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
92C ALA 3.2 15.3 - - - +
93C TYR* 3.1 9.7 + - + +
95C ASP* 1.3 78.1 - - - +
97C LYS* 1.3 55.7 + - - +
98C GLU* 4.5 5.2 - - + +
49P LEU* 4.0 24.7 - - + +
50P HIS* 3.9 28.3 + - + +
53P LYS* 3.6 35.7 - - + -
330P ARG* 4.6 15.5 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 97 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
93C TYR 3.6 0.2 - - - -
94C PHE 2.8 22.2 - - - +
95C ASP* 3.5 8.7 - - - +
96C VAL* 1.3 77.3 + - - +
98C GLU* 1.3 60.4 + - - +
99C TYR* 3.3 41.2 + - + +
128C LYS* 4.1 23.7 + - + +
8M ASP* 5.0 14.1 + - - +
97P LYS* 5.5 11.7 - - - +
----------------------------------------------------------
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