Contacts of the strand formed by residues 151 - 154 (chain D) in PDB entry 2C10
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 TYR 151 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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74D PHE* 3.6 11.2 - - - -
121D ALA* 3.8 14.3 - - + +
123D GLU* 2.5 38.1 + - - +
142D VAL* 4.3 4.9 - - + -
143D VAL* 3.5 4.5 - - - -
144D GLY* 2.8 59.4 + - - +
145D PRO* 3.5 13.5 - - + -
150D SER* 1.3 87.4 - - - +
152D MET* 1.3 62.6 + - - +
153D ARG* 3.3 44.6 + - - +
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Residues in contact with MET 152 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
74D PHE* 3.9 13.2 - - + -
75D LEU* 4.0 15.9 - - - -
78D ARG* 4.0 31.4 - - + +
79D LEU* 4.1 7.4 - - + -
141D LEU* 3.9 38.1 - - + -
142D VAL 3.2 6.7 - - - -
143D VAL* 4.4 8.3 - - + +
151D TYR* 1.3 77.9 - - - +
153D ARG* 1.3 65.4 + - - +
154D ASP 4.2 0.9 + - - -
2N NAG 4.4 19.3 - - + +
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Residues in contact with ARG 153 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
123D GLU* 4.5 3.6 + - - -
141D LEU* 3.2 6.3 - - - -
142D VAL* 2.7 47.1 + - + +
151D TYR* 3.3 58.7 + - - +
152D MET* 1.3 76.0 - - - +
154D ASP* 1.3 60.5 + - - +
155D VAL* 3.1 14.9 + - + +
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Residues in contact with ASP 154 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
139D SER* 3.7 12.6 + - - -
140D GLU 3.2 8.5 - - - +
141D LEU* 3.7 17.7 - - + +
152D MET 4.2 1.0 + - - -
153D ARG* 1.3 70.8 - - - +
155D VAL* 1.3 59.8 + - - +
156D THR* 2.8 33.7 + - - -
157D VAL* 4.9 10.8 + - - +
158D GLU* 5.3 3.6 + - - +
1N NAG 4.4 18.4 + - - +
2N NAG 4.8 14.3 - - + +
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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
------------------------------------------------------------
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