Contacts of the helix formed by residues 75 - 81 (chain A) in PDB entry 5UWS
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 LEU 75 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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74A GLY* 1.3 69.2 - - - -
76A ARG* 1.3 70.1 + - - +
77A ASP* 3.1 3.6 + - - +
78A GLY* 2.8 21.5 + - - -
79A TYR* 3.2 36.2 + - + +
23C PHE* 3.6 27.1 - - + -
24C TYR* 4.6 7.2 - - - +
35C GLN* 4.5 2.5 - - + +
38C LEU* 4.0 39.9 - - + +
39C THR* 4.0 8.1 - - - +
42C GLN* 3.5 29.5 - - + +
66C ILE* 4.7 13.2 - - + -
69C SER* 4.9 4.3 + - - -
73C LYS* 5.5 0.2 + - - -
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Residues in contact with ARG 76 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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70A GLU* 3.7 38.6 + - - +
73A GLY* 3.0 25.6 + - - +
74A GLY 3.8 9.2 + - - +
75A LEU* 1.3 77.2 - - - +
77A ASP* 1.3 67.0 + - + +
78A GLY 3.1 5.2 + - - -
79A TYR* 3.1 27.0 + - - +
80A TYR* 3.9 11.3 - - - -
72C ASP* 5.9 1.0 + - - -
73C LYS* 3.6 35.7 - - - +
77C ARG* 5.7 8.9 - - - +
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Residues in contact with ASP 77 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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75A LEU 3.8 4.0 - - - +
76A ARG* 1.3 77.8 - - - +
78A GLY* 1.3 63.8 + - - -
79A TYR 3.1 0.7 - - - -
80A TYR* 3.1 45.6 + - + +
81A ILE 4.1 1.9 + - - -
107A ASP* 4.2 11.9 - - + +
111A VAL* 3.9 16.1 - - + +
65C PHE* 3.6 13.8 - - - -
69C SER* 4.0 5.7 + - - -
117C LYS* 3.0 31.1 + - - +
120C LEU* 5.5 3.6 - - - +
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Residues in contact with GLY 78 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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75A LEU* 2.8 20.3 + - - -
77A ASP* 1.3 81.4 + - - +
79A TYR* 1.3 62.1 + - - +
80A TYR 3.4 0.3 + - - -
81A ILE* 3.7 5.7 + - - +
24C TYR* 2.8 38.5 + - - -
65C PHE* 3.9 17.7 - - - -
66C ILE* 5.7 2.2 - - - -
69C SER* 5.4 0.7 - - - -
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Residues in contact with TYR 79 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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12A LYS* 2.8 28.0 + - - -
14A VAL* 3.4 5.2 - - + +
44A GLY* 3.1 31.8 - - - -
45A VAL* 3.3 24.2 - - + -
64A TRP* 3.5 10.6 - + + -
66A THR* 3.8 31.9 - - + -
73A GLY 3.4 17.0 - - - -
74A GLY* 3.6 0.7 - - - -
75A LEU* 3.2 40.5 + - + -
76A ARG* 3.1 18.5 + - - +
78A GLY* 1.3 76.3 - - - +
80A TYR* 1.3 61.1 + - + +
81A ILE 3.4 0.4 - - - -
23C PHE* 3.6 18.6 - + - -
35C GLN* 2.8 20.2 + - - -
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Residues in contact with TYR 80 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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12A LYS* 4.0 0.2 - - - -
14A VAL* 4.1 13.0 - - + -
16A VAL* 3.4 33.4 - - + +
66A THR* 4.6 5.8 + - + -
76A ARG* 3.9 13.5 + - - -
77A ASP* 3.1 34.8 + - + +
79A TYR* 1.3 86.8 - - + +
81A ILE* 1.3 65.6 + - - +
83A ALA* 3.0 14.2 + - - +
104A TRP* 3.6 23.6 - - - -
107A ASP* 3.5 34.1 - - + +
108A LEU* 3.8 21.3 - - + -
111A VAL* 3.8 12.1 - - + -
112A CYS* 3.0 23.0 - - - -
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Residues in contact with ILE 81 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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12A LYS* 2.6 28.8 + - - -
77A ASP 4.4 0.9 - - - +
78A GLY 3.7 7.4 - - - +
79A TYR 3.4 1.6 - - - -
80A TYR* 1.3 75.5 - - - +
82A GLN* 1.3 80.1 + - + +
111A VAL* 3.8 18.4 - - + +
24C TYR* 3.5 35.9 - - + +
62C GLN* 4.0 26.7 - - + +
65C PHE* 3.6 43.7 - - + -
113C ASN* 4.4 13.2 - - + +
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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
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Atomic class I II III IV V VI VII VIII
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I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
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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