Contacts of the strand formed by residues 99 - 102 (chain A) in PDB entry 1PJQ
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 99 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
6A ILE* 5.6 0.2 - - + -
74A TRP 4.2 3.9 + - - +
75A LEU* 3.6 25.3 - - + +
76A ALA 3.1 22.5 + - - +
97A ARG 4.1 1.1 - - - -
98A ILE* 1.3 72.8 - - - +
100A CYS* 1.3 56.8 + - - +
110A SER* 3.4 29.2 - - - -
111A PHE* 3.7 8.3 - - + -
6B ILE* 4.7 2.0 - - + -
8B CYS* 3.7 39.3 - - + -
9B GLN 4.2 9.9 - - - -
10B LEU* 3.9 13.9 - - + -
13B ARG* 4.6 1.1 - - - -
74B TRP* 3.6 49.9 - + + -
75B LEU* 4.0 13.0 - - + -
99B PHE* 4.7 15.9 - + - -
----------------------------------------------------------
Back to top of page
Residues in contact with CYS 100 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
76A ALA* 3.2 18.6 - - + +
78A ALA 4.9 0.7 - - - -
89A VAL* 4.5 6.3 - - - -
90A SER* 3.8 35.0 - - - +
93A ALA* 3.7 23.1 - - + -
98A ILE 3.2 1.3 + - - +
99A PHE* 1.3 76.4 - - - +
101A ASN* 1.3 72.0 + - - +
102A VAL* 4.9 2.0 - - - -
109A ALA* 3.0 5.2 - - + +
110A SER* 2.8 39.0 + - - +
111A PHE* 3.0 12.4 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 101 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
27A LYS* 4.8 3.2 - - - +
76A ALA 3.1 8.0 + - - +
77A ILE* 3.4 9.9 - - + +
78A ALA* 2.9 26.7 + - - +
100A CYS* 1.3 75.3 - - - +
102A VAL* 1.3 68.5 + - - +
103A VAL* 3.6 28.5 - - - +
105A ALA 5.6 0.2 - - - +
106A PRO* 5.3 2.4 - - - +
108A ALA 5.6 0.5 - - - +
109A ALA* 4.2 0.7 - - - -
111A PHE* 2.7 45.2 - - + +
112A ILE* 3.6 16.1 - - - +
113A MET* 4.2 15.9 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 102 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
78A ALA* 3.7 10.5 - - + +
86A ASN* 4.0 33.0 - - + +
87A GLN* 5.4 0.7 - - - -
90A SER* 4.1 18.6 - - - +
100A CYS* 4.9 0.7 - - - -
101A ASN* 1.3 80.8 + - - +
103A VAL* 1.3 66.6 + - - +
104A ASP* 3.6 20.6 - - - +
105A ALA* 3.0 38.0 + - + +
106A PRO* 3.9 0.5 - - - +
108A ALA* 4.9 6.5 + - + -
109A ALA* 4.0 20.4 - - + +
----------------------------------------------------------
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