Contacts of the helix formed by residues 69 - 81 (chain B) in PDB entry 3OPY
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 ALA 69 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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18B PRO* 4.5 2.0 - - - -
67B GLU 4.3 0.6 + - - -
68B HIS* 1.4 72.4 - - - +
70B ALA* 1.4 59.8 + - - +
71B SER* 3.4 4.3 - - - +
72B VAL* 3.8 28.9 - - + +
73B SER* 3.2 30.8 + - - -
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Residues in contact with ALA 70 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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18B PRO* 4.1 21.8 - - + +
68B HIS 4.0 1.4 + - - -
69B ALA* 1.4 71.6 - - - +
71B SER* 1.4 58.1 + - - +
73B SER* 4.2 2.8 - - - -
74B GLN* 3.2 30.1 + - - +
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Residues in contact with SER 71 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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69B ALA* 3.4 3.7 - - - +
70B ALA* 1.4 76.1 - - - +
72B VAL* 1.4 67.2 + - - +
74B GLN* 3.7 4.5 + - - +
75B ILE* 3.2 38.3 + - - +
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Residues in contact with VAL 72 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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69B ALA* 3.6 26.3 + - + +
70B ALA 3.5 0.2 - - - -
71B SER* 1.4 76.7 - - - +
73B SER* 1.4 57.1 + - - +
75B ILE* 3.2 10.1 + - + +
76B ASP* 2.9 30.7 + - + +
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Residues in contact with SER 73 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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18B PRO* 5.8 4.3 - - - -
68B HIS* 6.0 3.8 - - - -
69B ALA 3.2 17.2 + - - -
70B ALA* 4.2 4.7 - - - -
72B VAL* 1.4 77.3 - - - +
74B GLN* 1.4 60.3 + - - +
76B ASP* 3.4 8.2 + - - +
77B GLN* 3.0 33.1 + - - +
134B VAL* 4.3 19.2 - - - +
136B PRO* 5.6 1.1 - - - +
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Residues in contact with GLN 74 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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70B ALA 3.2 20.8 + - - +
71B SER* 3.9 5.4 - - - +
73B SER* 1.4 73.5 - - - +
75B ILE* 1.4 63.1 - - + +
77B GLN* 3.4 16.0 + - - +
78B ASN* 3.4 21.1 + - - +
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Residues in contact with ILE 75 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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71B SER* 3.2 27.1 + - - +
72B VAL* 3.2 6.7 + - + +
74B GLN* 1.4 78.0 - - + +
76B ASP* 1.3 57.9 + - - +
78B ASN* 3.6 6.0 + - - +
79B ILE* 3.0 32.6 + - + +
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Residues in contact with ASP 76 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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72B VAL* 2.9 19.8 + - + +
73B SER* 3.7 8.5 - - - +
74B GLN 3.4 0.2 - - - -
75B ILE* 1.3 75.7 - - - +
77B GLN* 1.4 58.8 + - - +
79B ILE* 3.3 8.3 + - - +
80B ARG* 3.1 28.4 + - - +
95B GLN* 4.5 19.4 + - - +
136B PRO* 5.0 10.3 - - + +
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Residues in contact with GLN 77 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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73B SER* 3.0 24.7 + - - +
74B GLN* 3.5 17.0 - - - +
75B ILE 3.4 0.4 - - - -
76B ASP* 1.4 75.1 - - - +
78B ASN* 1.3 53.4 + - - +
80B ARG* 3.5 15.8 + - - +
81B ASN* 2.7 24.2 + - - -
132B TYR* 5.4 5.8 - - + -
133B THR 2.8 33.2 + - - +
134B VAL* 3.5 13.0 - - - +
136B PRO* 4.9 13.7 - - + -
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Residues in contact with ASN 78 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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74B GLN 3.4 12.0 + - - +
75B ILE* 4.0 5.8 - - - +
77B GLN* 1.3 75.2 - - - +
79B ILE* 1.4 60.3 + - - +
81B ASN* 3.1 34.6 + - - +
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Residues in contact with ILE 79 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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75B ILE* 3.0 23.3 + - + +
76B ASP* 3.3 11.6 + - - +
78B ASN* 1.4 74.9 - - - +
80B ARG* 1.4 59.4 + - - +
81B ASN 3.4 0.9 + - - -
82B LEU* 4.1 13.9 - - - +
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Residues in contact with ARG 80 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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76B ASP 3.1 12.0 + - - +
77B GLN* 3.6 12.3 - - - +
78B ASN 3.3 0.4 - - - -
79B ILE* 1.4 74.2 - - - +
81B ASN* 1.4 51.5 + - - +
82B LEU* 2.8 26.3 + - - +
83B THR* 4.9 3.8 - - - +
95B GLN* 6.3 0.9 - - - +
132B TYR* 5.7 9.0 - - + -
136B PRO* 6.0 3.8 - - + -
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Residues in contact with ASN 81 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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77B GLN* 2.7 27.1 + - - +
78B ASN* 3.1 24.4 + - - +
79B ILE 4.2 0.6 - - - +
80B ARG* 1.4 72.2 - - - +
82B LEU* 1.3 59.8 - - - +
83B THR* 5.4 2.9 - - - -
118B PRO* 3.9 23.4 - - - +
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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