Contacts of the helix formed by residues 112 - 118 (chain B) in PDB entry 4GCK
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 HIS 112 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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110A THR 2.8 28.3 + - - -
111A GLY* 3.8 24.1 - - - -
112A HIS* 3.6 23.8 - + - -
115A MET* 3.8 28.7 - - + +
122A GLN* 5.5 0.4 + - - -
107B ARG* 3.2 8.9 + - + +
110B THR* 2.7 32.0 + - + +
111B GLY* 1.3 74.1 - - - +
113B ALA* 1.3 64.8 + - - +
115B MET* 2.9 25.2 + - - +
116B PHE* 4.5 0.5 + - - -
171B SER* 5.2 9.6 - - - -
174B VAL* 3.9 25.5 - - + +
175B ARG* 6.0 2.3 - - + +
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Residues in contact with ALA 113 (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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115A MET* 4.5 7.4 - - - +
23B LEU* 3.9 22.9 - - + -
28B GLY 5.0 1.3 - - - +
59B PHE* 4.6 12.0 - - + -
107B ARG* 2.9 36.7 + - + +
108B ILE* 4.1 11.4 - - + +
112B HIS* 1.3 77.1 - - - +
114B LEU* 1.3 62.4 + - - +
115B MET 3.4 0.5 + - - -
116B PHE* 3.7 22.0 + - - +
117B GLU* 4.6 1.2 + - - +
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Residues in contact with LEU 114 (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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59B PHE* 3.8 32.8 - - + -
63B ILE* 4.6 1.8 - - + -
108B ILE* 3.8 35.2 - - + +
111B GLY* 3.3 8.7 + - - +
112B HIS 3.0 1.6 - - - -
113B ALA* 1.3 75.4 - - - +
115B MET* 1.3 65.6 + - - +
116B PHE 3.0 3.1 - - - -
117B GLU* 3.0 24.8 + - + +
118B GLN 5.1 0.9 - - - +
119B ASP* 5.7 0.7 - - - +
121B LEU* 3.8 27.8 - - + +
122B GLN* 3.7 40.4 - - + +
125B ILE* 4.0 8.7 - - + -
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Residues in contact with MET 115 (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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28A GLY 3.7 9.2 - - - +
29A SER* 3.2 55.2 - - - +
30A GLN* 4.8 2.3 - - - +
107A ARG* 5.1 2.7 - - - +
112A HIS* 3.5 43.5 - - + +
113A ALA 4.7 0.2 - - - +
115A MET* 3.8 15.3 - - + -
116A PHE* 3.5 30.5 - - + -
111B GLY 3.5 11.6 + - - +
112B HIS 2.9 18.0 + - - +
114B LEU* 1.3 79.0 - - - +
116B PHE* 1.3 61.4 + - - +
117B GLU 3.3 4.7 + - - +
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Residues in contact with PHE 116 (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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31A ARG* 5.7 2.0 - - - -
115A MET* 3.2 57.0 - - + -
116A PHE* 4.0 22.4 - + - -
28B GLY 5.1 1.1 - - - -
30B GLN* 3.1 17.0 - - + -
31B ARG* 2.9 87.6 + - + +
32B ILE* 4.9 2.7 - - + +
112B HIS 4.7 0.4 - - - -
113B ALA* 3.8 18.8 - - - +
114B LEU 3.0 1.0 - - - -
115B MET* 1.3 77.0 - - - +
117B GLU* 1.3 71.2 + - - +
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Residues in contact with GLU 117 (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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30A GLN* 6.1 0.5 - - - +
31B ARG* 4.7 3.5 + - - -
32B ILE 5.8 0.2 + - - -
55B LYS* 3.3 45.4 + - - +
56B THR* 4.5 11.9 + - - +
59B PHE* 3.5 32.0 - - + -
113B ALA 5.0 0.4 - - - +
114B LEU* 3.0 22.4 + - - +
115B MET 4.0 4.3 - - - +
116B PHE* 1.3 96.0 - - - +
118B GLN* 1.3 70.0 + - + +
119B ASP* 3.4 7.6 + - - +
121B LEU* 3.8 17.0 - - + -
12W A 5.1 3.6 - - - +
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Residues in contact with GLN 118 (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 SER* 4.8 3.2 + - - -
56B THR* 2.6 46.7 + - + +
114B LEU* 5.1 1.2 - - - +
117B GLU* 1.3 78.4 - - + +
119B ASP* 1.3 59.4 + - - +
120B ARG* 3.9 19.5 + - + +
121B LEU* 2.9 30.2 + - + +
122B GLN 4.3 0.5 + - - -
13W C 5.0 6.3 + - - -
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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