Contacts of the strand formed by residues 112 - 116 (chain A) in PDB entry 2W77
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 112 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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68A ILE* 4.4 1.1 - - - -
69A GLN* 3.0 15.5 - - + +
71A LEU* 5.1 7.2 - - + -
109A GLN* 2.8 49.3 + - + +
110A GLY 3.2 2.5 + - - +
111A ASN* 1.3 80.0 - - - +
113A ILE* 1.3 67.3 + - - +
139A THR* 4.1 19.7 - - + +
150A GLY* 6.3 0.2 - - - -
151A THR* 6.1 0.4 - - + -
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Residues in contact with ILE 113 (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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62A PHE* 3.6 31.6 - - + -
68A ILE* 4.1 15.2 - - + +
69A GLN 2.8 10.3 + - - +
70A VAL* 3.8 19.4 - - + +
71A LEU* 2.9 24.1 + - - +
95A ILE* 4.1 14.1 - - + -
106A VAL* 3.9 8.5 - - + -
107A ASP 3.4 8.1 - - - +
108A PHE* 3.8 31.0 - - + -
109A GLN* 4.7 0.2 - - - -
110A GLY 5.9 0.7 - - - +
112A ALA* 1.3 80.4 - - - +
114A THR* 1.3 61.5 + - - +
115A ILE* 3.7 19.2 + - + -
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Residues in contact with THR 114 (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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71A LEU* 3.4 26.2 - - + -
105A SER 4.0 0.3 - - - +
106A VAL* 3.8 1.4 - - - -
107A ASP* 2.9 40.2 + - + +
109A GLN* 2.6 41.6 + - - +
113A ILE* 1.3 75.0 - - - +
115A ILE* 1.3 67.9 + - - +
116A SER* 4.1 3.8 + - - -
131A MET* 5.0 7.7 - - - -
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Residues in contact with ILE 115 (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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55A LEU* 5.5 0.4 - - + -
59A LEU* 4.0 21.3 - - + -
70A VAL* 3.7 26.7 - - + -
71A LEU 2.8 17.9 + - - +
72A TYR* 3.9 22.6 - - + -
73A ARG* 4.5 2.6 + - - +
76A GLU* 4.3 4.2 - - - +
77A VAL* 4.7 9.4 - - + -
95A ILE* 4.5 5.8 - - + -
99A LEU* 4.1 18.8 - - + -
104A ALA* 4.3 17.7 - - + -
105A SER 3.5 8.5 - - - +
106A VAL* 4.7 3.6 - - + -
113A ILE* 3.7 23.3 - - + -
114A THR* 1.3 77.4 + - - +
116A SER* 1.3 65.0 + - - +
117A VAL* 5.4 1.8 - - + -
131A MET* 4.7 3.6 - - - +
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Residues in contact with SER 116 (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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73A ARG* 6.0 2.5 - - - -
76A GLU* 3.6 10.3 - - - -
104A ALA* 3.3 4.4 - - - +
105A SER* 2.8 45.4 + - - -
114A THR* 4.1 4.8 + - - -
115A ILE* 1.3 75.5 - - - +
117A VAL* 1.3 65.3 + - - +
118A ALA* 4.0 3.6 + - - +
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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