Contacts of the strand formed by residues 163 - 166 (chain E) in PDB entry 3P1M
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 MET 163 (chain E).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
68E THR 3.9 0.2 + - - -
69E VAL* 3.7 12.0 - - + -
70E HIS* 2.9 25.6 + - - +
89E LEU* 3.9 32.8 - - + -
119E PHE* 4.5 2.7 - - + -
120E GLU* 3.2 12.8 - - + +
122E HIS* 5.8 1.3 - - - +
123E ILE* 3.9 30.1 - - + -
156E LEU* 3.9 8.5 - - + -
160E MET* 3.0 56.0 + - + +
161E ASP 3.2 1.6 + - - -
162E ASN* 1.3 81.5 - - - +
164E THR* 1.3 62.6 + - - +
165E VAL* 3.9 18.8 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with THR 164 (chain E).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
183D THR* 3.7 25.5 - - + +
188D LEU* 3.8 10.7 - - + +
190D PHE* 3.1 30.4 - - + -
70E HIS* 3.2 14.6 - - + +
72E ILE* 3.8 29.4 - - + -
78E THR* 5.6 0.4 - - + -
120E GLU* 2.8 35.0 + - - +
162E ASN 4.2 0.9 + - - -
163E MET* 1.3 76.1 + - - +
165E VAL* 1.3 66.4 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 165 (chain E).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
183D THR* 5.0 0.2 - - - -
69E VAL* 4.4 3.6 - - + -
70E HIS 2.9 11.5 + - - +
71E PHE* 3.3 36.6 - - + -
72E ILE 2.9 23.2 + - - -
89E LEU* 4.7 3.1 - - + -
117E LEU* 4.1 16.4 - - + -
118E ILE 3.3 8.7 - - - +
119E PHE* 3.8 35.0 - - + -
163E MET* 3.9 19.7 - - + -
164E THR* 1.3 82.8 - - - +
166E ARG* 1.3 59.2 + - - +
167E VAL 4.2 0.2 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 166 (chain E).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
190A PHE* 3.5 53.3 - - - -
181D GLY* 5.6 0.2 - - - -
182D LYS* 3.1 37.0 + - - +
183D THR* 4.0 12.7 - - - +
72E ILE* 3.6 19.7 - - + +
73E ASN 5.1 0.7 - - - +
117E LEU* 3.6 5.3 - - - +
118E ILE* 3.0 58.9 + - + +
145E THR* 5.7 0.6 - - - +
165E VAL* 1.3 74.7 - - - +
167E VAL* 1.3 70.8 + - - +
168E PRO* 3.4 23.8 - - - +
169E GLU 5.0 1.4 - - - +
----------------------------------------------------------
Back to top of page
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
------------------------------------------------------------
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) + - + + + + + -
------------------------------------------------------------
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