Contacts of the strand formed by residues 103 - 107 (chain B) in PDB entry 1II4
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 103 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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71B VAL* 3.5 5.5 - - - +
72B VAL* 2.9 36.4 + - + +
74B ILE* 3.9 17.9 - - + -
83B LEU* 3.5 47.8 - - + -
84B ALA* 3.9 5.4 - - - -
85B MET* 4.1 17.9 - - + -
91B LEU* 5.6 0.4 - - + -
100B GLU 3.7 16.6 - - - -
101B CYS 3.7 13.2 - - - -
102B PHE* 1.3 80.5 - - - +
104B PHE* 1.3 64.0 + - - +
105B GLU 3.3 1.2 + - - -
115B TYR* 4.0 20.9 - - + -
116B ARG 3.2 7.0 - - - +
117B SER* 3.5 19.1 - - - -
118B ARG 4.2 0.7 - - - +
125B VAL* 3.7 22.2 - - + -
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Residues in contact with PHE 104 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
69B ARG 5.3 0.9 - - - -
70B GLY* 3.3 7.4 - - - +
71B VAL* 3.4 27.4 - - + -
103B PHE* 1.3 72.2 - - - +
105B GLU* 1.3 62.2 + - - +
106B ARG* 3.8 3.3 + - + +
114B THR* 3.2 7.3 + - - +
115B TYR* 3.4 1.8 - - - -
116B ARG* 2.6 85.8 + - + +
118B ARG* 3.8 35.0 - - + +
121B THR* 5.3 3.4 - - + -
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Residues in contact with GLU 105 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
64B LEU* 3.4 12.9 - - - +
70B GLY* 2.8 20.4 + - - +
72B VAL* 4.3 11.4 - - + -
103B PHE 3.3 1.6 + - - -
104B PHE* 1.3 72.2 - - - +
106B ARG* 1.3 63.9 + - - +
107B LEU 5.4 0.2 - - - +
113B ASN* 3.7 16.1 + - - +
114B THR 3.5 3.8 - - - +
115B TYR* 2.5 44.6 + - + +
284F ALA* 3.7 8.3 - - + +
285F GLN* 2.6 46.6 + - - +
347F SER* 3.8 17.7 + - - -
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Residues in contact with ARG 106 (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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104B PHE* 4.9 4.3 - - + +
105B GLU* 1.3 77.3 - - - +
107B LEU* 1.3 67.6 + - - +
108B GLU* 3.3 33.7 + - - +
113B ASN* 3.0 9.4 - - - -
114B THR* 2.9 43.9 + - - +
116B ARG* 6.1 0.8 - - - +
347F SER* 4.6 17.2 - - - -
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Residues in contact with LEU 107 (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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105B GLU* 5.4 0.2 - - - +
106B ARG* 1.3 79.3 + - - +
108B GLU* 1.3 77.9 + - - +
111B ASN* 3.5 27.8 - - - +
112B TYR 3.6 6.7 - - - +
113B ASN* 3.6 7.6 - - - +
251F ARG* 3.6 32.3 - - + +
252F TRP 4.6 0.9 - - - +
253F PRO* 3.7 38.1 - - + -
283F ASP* 4.6 4.5 - - + +
284F ALA* 5.0 11.1 - - + +
347F SER* 4.6 4.4 + - - +
348F ILE* 5.0 15.0 - - + +
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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