Contacts of the strand formed by residues 253 - 257 (chain C) in PDB entry 1G3I
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 ILE 253 (chain C).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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31C LEU* 5.6 6.3 - - + -
34C ARG* 2.8 34.1 - - - +
67C ALA 4.9 1.6 - - - +
70C LEU* 4.8 8.7 - - + -
71C ALA* 4.0 23.3 - - + +
74C ALA* 5.9 0.9 - - + -
76C ALA* 4.1 12.6 - - + -
77C PRO 2.9 5.3 + - - +
78C PHE* 3.4 24.1 - - + -
79C ILE* 3.3 21.5 + - - +
103C LEU* 3.9 0.5 - - - +
251C ASN 3.9 2.7 - - - +
252C GLY* 1.3 74.0 - - - +
254C VAL* 1.3 66.3 + - - +
304C LEU* 3.4 32.5 - - + +
306C ILE* 3.8 20.2 - - + -
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Residues in contact with VAL 254 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
79C ILE* 3.5 22.2 - - + +
81C VAL* 5.0 2.2 - - + -
99C ILE* 3.9 24.7 - - + -
100C ILE* 4.7 2.5 - - + -
103C LEU* 3.9 10.8 - - + -
253C ILE* 1.3 80.5 - - - +
255C PHE* 1.3 63.7 + - - +
256C ILE* 3.8 16.1 + - + -
303C ILE* 3.7 18.4 - - + -
304C LEU 3.0 6.9 + - - -
305C PHE* 3.5 30.5 - - + +
306C ILE* 2.8 27.4 + - - +
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Residues in contact with PHE 255 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
55C MET* 4.3 2.5 - - + -
63C LYS* 4.2 5.6 - - + -
64C THR* 3.4 37.0 - - + -
67C ALA* 3.6 23.6 - - + -
78C PHE* 3.6 23.1 - + + -
79C ILE 2.8 10.7 + - - +
80C LYS* 3.4 20.7 - - + -
81C VAL* 3.0 27.7 + - - +
253C ILE 4.2 0.2 - - - -
254C VAL* 1.3 73.5 - - - +
256C ILE* 1.3 59.2 + - - +
257C ASP* 3.5 22.0 + - + -
306C ILE* 3.1 34.1 - - + -
308C SER* 3.3 29.6 - - - -
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Residues in contact with ILE 256 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
81C VAL* 3.7 14.4 - - + -
83C ALA* 4.0 17.3 - - + -
99C ILE* 5.4 1.1 - - + -
254C VAL* 4.1 13.0 - - + -
255C PHE* 1.3 72.9 - - - +
257C ASP* 1.3 60.9 + - - +
259C ILE* 3.4 33.7 - - + -
282C LEU* 3.7 34.5 - - + -
286C VAL* 5.2 5.6 - - + -
305C PHE* 4.2 24.0 - - + -
306C ILE 2.8 9.2 + - - +
307C ALA* 3.9 9.6 - - + +
308C SER 2.8 25.6 + - - +
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Residues in contact with ASP 257 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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80C LYS* 3.7 30.9 + - - -
81C VAL 3.0 13.2 + - - +
82C GLU* 4.1 17.3 - - - +
83C ALA* 3.1 22.1 + - - +
255C PHE* 3.5 9.3 + - + -
256C ILE* 1.3 75.3 - - - +
258C GLU* 1.3 84.5 + - - +
259C ILE 3.0 1.7 + - - -
308C SER* 2.6 31.5 + - - -
452C ATP 3.0 30.1 + - - -
322D GLU* 5.6 2.1 - - - +
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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