Contacts of the strand formed by residues 68 - 72 (chain B) in PDB entry 6AGF
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 VAL 68 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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58B THR* 3.3 2.6 - - - -
59B PHE* 3.1 31.2 + - + +
66B GLU* 4.4 23.6 - - + +
67B PHE* 1.3 73.6 - - - +
69B LYS* 1.3 65.4 + - - +
70B ILE* 3.4 10.4 + - + +
83B ASP* 3.3 25.8 - - - +
85B ARG* 5.7 9.9 - - - +
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Residues in contact with LYS 69 (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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56B GLU* 2.9 37.7 - - - +
57B TRP 3.4 6.3 - - - +
58B THR* 4.3 4.7 - - + +
67B PHE 3.7 3.8 + - - -
68B VAL* 1.3 74.1 - - - +
70B ILE* 1.3 62.1 + - - +
71B LEU* 3.7 19.3 - - - +
72B ARG* 4.5 19.6 - - + +
80B LEU* 4.8 11.3 + - - +
81B GLU* 5.4 4.0 - - - +
83B ASP* 2.8 26.3 - - - +
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Residues in contact with ILE 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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57B TRP* 2.9 35.6 + - + +
59B PHE* 4.2 26.7 - - + -
68B VAL* 3.7 12.6 - - + +
69B LYS* 1.3 80.3 - - - +
71B LEU* 1.3 67.8 + - + +
81B GLU* 3.3 22.5 - - - +
82B GLU 3.7 5.5 + - - -
83B ASP* 4.5 11.4 - - - +
84B GLU 5.9 0.7 - - - +
85B ARG* 6.1 0.2 - - - +
86B PHE* 4.1 36.1 - - + -
106B ILE* 4.5 14.6 - - + -
119B TYR* 4.4 14.1 - - + -
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Residues in contact with LEU 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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55B THR* 4.7 2.0 - - + -
56B GLU* 3.7 3.6 - - - -
57B TRP* 3.4 51.8 + - + -
69B LYS* 3.7 13.6 - - - +
70B ILE* 1.3 83.6 - - + +
72B ARG* 1.3 65.5 + - - +
73B TYR* 4.0 16.8 - - + +
79B GLN* 3.4 25.6 - - - +
80B LEU 3.4 7.0 - - - +
81B GLU* 3.6 13.7 - - + +
90B VAL* 4.0 9.0 - - + -
92B TRP* 4.7 4.5 - - + -
106B ILE* 3.6 33.4 - - + -
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Residues in contact with ARG 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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54B PHE* 3.2 35.2 - - + -
55B THR 3.4 14.8 - - - +
56B GLU* 3.5 21.5 + - - +
69B LYS* 4.5 13.6 - - - +
71B LEU* 1.3 77.1 - - - +
73B TYR* 1.3 57.1 + - - +
74B GLU* 3.2 30.9 + - + +
78B LEU* 5.4 0.5 - - - +
79B GLN* 4.9 0.4 - - - -
80B LEU* 2.7 45.6 + - + +
124B TYR* 5.5 2.4 - - - -
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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