Contacts of the helix formed by residues 158 - 163 (chain P) in PDB entry 1H2I
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 PHE 158 (chain P).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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76O ASN* 3.4 13.9 + - - +
81O TYR* 3.9 22.3 - + + +
40P GLN* 5.7 0.2 + - - -
43P LEU* 3.4 28.7 - - + +
79P PHE* 4.1 20.2 - + + -
113P VAL* 4.0 31.2 - - + -
115P LEU* 3.1 44.6 - - + -
119P SER* 4.7 4.3 - - - -
120P TYR* 4.8 12.1 - - - -
121P HIS* 3.6 28.5 - + - -
154P ALA 4.7 0.2 - - - -
155P LEU* 3.0 33.9 + - + +
156P ARG 2.9 0.4 + - - -
157P SER* 1.3 76.5 - - - +
159P GLY* 1.3 57.3 + - - +
162P LEU* 4.7 3.4 - - + -
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Residues in contact with GLY 159 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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73O ASN* 4.3 4.7 - - - -
76O ASN* 3.9 9.6 - - - -
43P LEU* 4.0 9.0 - - - -
155P LEU 4.3 0.4 + - - -
156P ARG 3.0 8.0 + - - +
157P SER 3.3 1.4 + - - -
158P PHE* 1.3 81.1 - - - +
160P ASN* 1.3 66.4 + - - -
161P ALA 3.3 2.2 - - - -
162P LEU* 3.2 10.3 + - - +
163P GLY 3.4 0.5 + - - -
164P ASN* 2.9 25.7 + - - +
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Residues in contact with ASN 160 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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73O ASN* 3.2 32.7 + - - +
43P LEU 3.1 3.8 + - - -
44P ARG* 2.8 26.0 + - - +
45P GLN 3.1 17.5 - - - +
46P ARG* 4.2 20.2 + - - +
47P LEU* 3.0 12.9 - - - +
159P GLY* 1.3 71.6 - - - -
161P ALA* 1.3 55.8 + - - +
163P GLY* 2.7 25.1 + - - -
164P ASN* 3.4 7.8 + - - +
165P CYS* 3.6 25.1 + - + +
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Residues in contact with ALA 161 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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192O LYS* 4.6 12.5 - - + +
42P ALA 3.4 18.8 - - - +
43P LEU* 2.8 27.4 + - + +
45P GLN* 3.0 12.0 + - + +
47P LEU* 3.7 9.0 - - - +
74P LEU* 3.6 28.9 - - - +
78P MET* 3.7 16.6 - - + -
160P ASN* 1.3 71.3 - - - +
162P LEU* 1.3 57.8 + - - +
163P GLY 3.4 0.7 - - - -
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Residues in contact with LEU 162 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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43P LEU* 3.5 27.4 - - + -
66P ILE* 5.1 0.9 - - - -
71P VAL* 4.3 16.3 - - + +
74P LEU* 4.1 15.7 - - + +
75P ALA* 4.0 24.9 - - + +
78P MET* 4.0 21.3 - - + -
79P PHE* 4.6 9.2 - - + -
152P LYS 4.8 1.4 - - - +
155P LEU* 3.5 44.8 - - + +
156P ARG* 3.9 13.7 + - - +
158P PHE* 4.7 5.8 - - + -
159P GLY 3.2 6.3 + - - +
160P ASN 3.0 1.2 - - - -
161P ALA* 1.3 81.7 - - - +
163P GLY* 1.3 57.1 + - - +
164P ASN 3.8 1.1 - - - -
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Residues in contact with GLY 163 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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47P LEU* 4.4 2.8 - - - +
66P ILE* 3.9 22.9 - - - +
156P ARG* 3.7 14.9 + - - -
160P ASN 2.7 9.0 + - - -
161P ALA 3.4 1.2 + - - -
162P LEU* 1.3 82.3 - - - +
164P ASN* 1.3 63.7 + - - +
165P CYS 3.1 4.0 + - - -
166P ILE* 3.2 24.7 + - - +
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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