Contacts of the strand formed by residues 102 - 106 (chain D) in PDB entry 6IAP
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 THR 102 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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6D GLN* 2.7 28.5 + - - +
8D PRO* 3.1 26.1 + - + +
9D SER 3.4 3.8 - - - +
10D SER* 4.5 2.0 - - - -
11D LEU* 4.1 22.7 - - + -
21D ILE* 3.4 34.6 - - + +
84D ALA 3.5 0.7 - - - +
85D THR* 3.3 4.7 - - - +
86D TYR* 2.8 33.6 + - - +
101D GLY* 1.4 69.3 + - - -
103D LYS* 1.3 59.9 + - - +
104D VAL* 3.2 8.5 + - + -
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Residues in contact with LYS 103 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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9D SER 3.2 10.9 + - - +
10D SER* 3.4 11.6 - - - -
11D LEU 3.0 27.8 + - - +
84D ALA 3.9 4.9 - - - +
85D THR* 4.0 23.0 - - + +
101D GLY 4.3 0.6 - - - -
102D THR* 1.3 67.3 - - - +
104D VAL* 1.3 64.9 + - - +
105D GLU* 2.8 43.9 + - + +
142D ARG* 3.4 24.7 - - - +
165D GLU* 3.1 30.1 + - - +
166D GLN 5.4 1.0 - - - +
173D TYR* 5.1 1.6 - - - -
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Residues in contact with VAL 104 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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11D LEU* 3.5 29.6 - - + -
19D VAL* 4.4 4.3 - - + -
21D ILE* 4.3 13.0 - - + -
75D ILE* 5.3 0.7 - - + -
78D LEU* 3.9 28.7 - - + -
82D ASP 4.3 4.7 - - - +
83D PHE* 3.7 23.5 - - + +
84D ALA 2.9 30.2 + - - +
86D TYR* 3.8 26.2 - - + -
102D THR* 3.2 4.9 + - + +
103D LYS* 1.3 70.8 - - - +
105D GLU* 1.3 63.3 + - - +
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Residues in contact with GLU 105 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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10D SER* 4.4 8.3 - - - -
11D LEU 2.8 8.3 + - - +
12D SER* 3.4 17.6 + - - +
13D ALA 3.1 23.0 + - - -
83D PHE* 3.3 13.2 - - - -
103D LYS* 2.8 53.2 + - + +
104D VAL* 1.3 76.0 - - - +
106D ILE* 1.4 61.4 + - - +
142D ARG* 3.6 7.0 + - - -
166D GLN* 3.7 9.3 - - + +
173D TYR* 2.7 36.6 + - - +
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Residues in contact with ILE 106 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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12D SER* 3.8 2.2 + - - -
13D ALA 3.5 8.3 - - - +
14D SER* 5.1 4.0 - - - -
15D VAL* 5.2 8.1 - - + -
80D PRO* 5.2 4.9 - - + +
83D PHE* 3.6 42.6 - - + -
105D GLU* 1.4 70.4 - - - +
107D LYS* 1.3 72.8 + - - +
108D ARG* 3.7 0.3 + - - +
140D TYR* 3.6 8.3 + - - -
166D GLN* 2.8 44.2 + - + +
167D ASP 5.6 3.6 - - - +
168D SER* 5.6 6.5 - - - +
171D SER* 3.7 26.7 - - - +
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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