Contacts of the strand formed by residues 88 - 92 (chain A) in PDB entry 2K8R
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 ASN 88 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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80A GLU* 3.7 6.9 - - + +
81A ARG 2.9 13.2 - - - +
82A LEU* 3.4 22.0 - - + -
87A TYR* 1.3 88.1 - - - +
89A THR* 1.3 69.9 + - - +
90A TYR* 3.0 31.7 - - - -
124A LEU 4.4 0.3 + - - -
125A PHE* 2.7 61.1 + - - +
127A PRO* 3.2 20.5 - - + +
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Residues in contact with THR 89 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
79A LEU 3.4 1.4 - - - +
81A ARG* 2.5 77.5 + - - +
87A TYR* 4.3 6.6 + - - +
88A ASN* 1.3 77.9 - - - +
90A TYR* 1.3 60.8 + - - +
91A ILE* 5.5 2.0 - - - +
101A PHE* 3.4 36.1 - - + -
122A ALA 4.5 1.6 - - - +
123A ILE* 3.6 34.5 - - + -
125A PHE* 4.5 1.8 - - - -
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Residues in contact with TYR 90 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
7A LEU* 3.4 24.7 - - + +
39A LEU* 3.4 21.6 - - + +
47A VAL* 4.6 0.7 - - + -
49A ILE* 4.5 15.0 - - + -
78A PHE* 4.8 7.9 - - + -
79A LEU 3.2 16.2 - - - -
80A GLU* 2.5 43.2 + - + -
88A ASN* 3.0 31.6 - - - -
89A THR* 1.3 75.0 - - - +
91A ILE* 1.3 69.3 + - - +
101A PHE* 3.8 18.4 - - - -
102A VAL* 3.8 28.3 + - + +
125A PHE* 4.1 16.0 - + - -
127A PRO* 3.4 16.1 - - - +
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Residues in contact with ILE 91 (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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78A PHE* 3.6 8.3 - - - +
79A LEU* 2.9 60.3 + - + +
81A ARG* 6.4 1.8 - - + -
89A THR* 5.5 2.0 - - - +
90A TYR* 1.3 81.4 - - - +
92A SER* 1.3 63.1 + - - +
93A LYS* 2.9 4.6 + - - -
96A ALA* 6.2 2.7 - - + -
99A ASN* 3.9 39.9 - - + +
100A TRP 4.6 4.3 - - - +
101A PHE* 4.2 20.9 - - + -
102A VAL* 5.5 1.1 - - - -
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Residues in contact with SER 92 (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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60A MET* 3.2 39.5 - - - +
78A PHE* 4.6 3.9 - - - -
91A ILE* 1.3 72.2 - - - +
93A LYS* 1.3 68.4 + - - +
94A LYS 3.3 1.3 - - - -
95A HIS* 2.9 35.8 + - - +
96A ALA* 3.2 3.1 + - - -
98A LYS 4.7 6.5 + - - -
99A ASN* 4.9 2.5 - - - +
100A TRP 4.7 9.5 + - - -
102A VAL* 5.7 3.9 - - - +
112A ARG* 5.0 8.1 + - - -
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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