Contacts of the strand formed by residues 297 - 303 (chain D) in PDB entry 3IML
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 ARG 297 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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5D TYR* 5.0 9.3 + - - -
129D TYR* 3.6 27.1 + - - +
130D ALA 3.3 5.8 - - - +
131D CYS* 3.3 20.4 - - + +
133D GLU* 5.6 5.0 + - - -
179D GLY* 4.5 18.8 + - - -
290D VAL* 4.2 2.2 - - - -
295D ALA* 3.5 9.3 - - - +
296D SER* 1.3 84.0 - - - +
298D ALA* 1.3 63.4 + - - +
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Residues in contact with ALA 298 (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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129D TYR* 3.4 7.0 - - - -
130D ALA 2.8 38.4 + - - -
286D ALA* 3.8 6.8 - - - +
289D ILE* 4.2 28.5 - - + -
290D VAL* 4.0 14.7 - - + +
295D ALA* 4.3 4.9 - - + -
297D ARG* 1.3 75.5 - - - +
299D LEU* 1.3 61.9 + - - +
300D ILE* 5.6 0.2 - - + -
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Residues in contact with LEU 299 (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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127D PHE* 4.5 13.7 - - + -
128D GLY 3.0 24.2 - - - +
129D TYR* 3.8 24.4 - - + -
259D ALA* 4.0 16.2 - - + -
260D PRO* 4.2 21.8 - - + -
298D ALA* 1.3 72.5 - - - +
300D ILE* 1.3 79.6 + - - +
301D GLN* 5.4 4.7 - - + +
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Residues in contact with ILE 300 (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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127D PHE* 3.4 8.5 - - - +
128D GLY 2.8 39.1 + - - +
282D GLY* 3.8 24.9 - - - +
285D VAL* 3.5 36.8 - - + -
286D ALA* 4.9 4.7 - - + -
289D ILE* 4.5 21.5 - - + -
298D ALA* 5.3 0.9 - - + -
299D LEU* 1.3 83.0 - - - +
301D GLN* 1.3 64.8 + - - +
302D VAL* 5.6 7.0 - - + -
339D LEU* 5.1 8.7 - - + -
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Residues in contact with GLN 301 (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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5C TYR* 4.1 17.6 - - - +
6C LEU 3.6 21.8 + - - -
7C PHE* 4.3 14.7 - - - +
126D MET 3.8 5.6 - - - -
127D PHE* 3.6 30.7 - - + +
299D LEU* 5.4 5.5 - - - +
300D ILE* 1.3 83.0 - - - +
302D VAL* 1.3 74.3 + - - +
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Residues in contact with VAL 302 (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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125D LEU* 3.6 1.9 - - - +
126D MET* 2.7 48.3 + - + +
278D ALA* 5.6 3.1 - - + +
300D ILE* 5.6 6.7 - - + -
301D GLN* 1.3 86.7 - - - +
303D SER* 1.3 79.4 + - - +
304D TYR* 4.0 24.2 - - + +
339D LEU* 5.0 18.4 - - + +
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Residues in contact with SER 303 (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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8C THR* 3.4 31.0 + - - +
171C GLN* 3.1 19.9 + - - -
173C THR* 4.8 0.9 + - - -
124D GLY 3.4 9.9 - - - -
125D LEU* 4.4 3.8 - - - -
302D VAL* 1.3 82.4 - - - +
304D TYR* 1.3 89.5 + - - +
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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