Contacts of the strand formed by residues 187 - 190 (chain B) in PDB entry 1G82
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 PHE 187 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
66B LEU* 3.4 38.3 - - + +
67B TYR 3.4 2.2 - - - -
68B CYS* 3.5 38.6 - - + -
74B LEU* 4.5 11.7 - - + -
145B TYR* 3.4 5.1 - - - -
146B ASN* 2.5 43.4 + - - +
148B TYR* 3.8 17.9 - + + -
164B VAL* 3.7 27.1 - - + -
165B ALA* 3.9 18.8 - - - -
166B LEU* 4.2 13.2 - - + -
184B PHE 3.7 3.4 - - - -
185B THR 3.3 23.6 - - - -
186B HIS* 1.3 74.5 - - - +
188B LEU* 1.3 57.9 - - - +
189B PRO* 3.7 4.4 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 188 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
66B LEU* 3.7 2.0 - - - -
67B TYR* 2.7 35.0 + - + +
143B ASN 4.3 2.2 - - - +
144B TRP* 3.4 28.7 - - + +
145B TYR* 3.4 34.5 - - + +
187B PHE* 1.3 70.8 - - - +
189B PRO* 1.3 83.0 - - + +
190B ARG* 3.3 20.1 + - + +
143C ASN 5.0 3.1 - - - +
188C LEU* 3.9 43.5 - - + -
190C ARG* 4.8 2.9 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with PRO 189 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
64B ARG* 4.8 13.9 - - + +
65B GLN 3.3 7.2 - - - +
66B LEU* 3.8 7.6 - - + -
97B PHE* 4.9 8.5 - - + -
138B GLU* 5.0 1.8 - - - +
144B TRP 3.6 16.6 - - - +
146B ASN* 3.9 19.5 - - - +
148B TYR* 3.9 11.4 - - - +
187B PHE 3.7 5.4 - - - +
188B LEU* 1.3 97.4 - - + +
190B ARG* 1.3 58.5 + - - +
190C ARG* 4.9 6.1 + - - +
191C PRO* 3.6 24.1 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 190 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
64B ARG* 3.2 8.6 - - - -
65B GLN* 2.6 48.7 + - + +
67B TYR* 4.0 5.4 - - + -
73B HIS* 3.0 30.0 + - - -
88B ASP* 2.3 35.0 + - - -
89B HIS* 5.2 2.4 - - - -
188B LEU* 3.8 22.2 - - + +
189B PRO* 1.3 78.9 - - - +
191B PRO* 1.3 78.0 + - + +
144C TRP* 3.4 52.9 + - - +
188C LEU* 5.3 4.2 - - + +
189C PRO 5.3 1.5 + - - +
191C PRO* 4.4 5.2 - - - -
----------------------------------------------------------
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