Contacts of the strand formed by residues 104 - 108 (chain A) in PDB entry 3SO3
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 ALA 104 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
53A VAL* 3.6 6.8 - - - +
54A SER 2.9 29.8 + - - +
55A ALA 4.1 4.3 - - - -
56A ALA* 4.0 18.8 - - - +
59A TYR* 4.2 7.6 - - + -
88A ILE* 4.5 2.5 - - + -
89A ILE 3.1 13.5 - - - +
90A SER* 4.1 6.1 - - - -
103A ILE* 1.3 76.5 - - - +
105A LEU* 1.3 65.8 + - - +
106A LEU* 4.2 15.3 - - + -
237A TRP* 4.4 1.8 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 105 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
47A ILE* 4.5 3.1 - - + -
51A TRP* 3.9 15.0 - - + -
52A LEU 3.4 4.3 - - - +
53A VAL* 3.8 28.7 - - + -
87A ARG 3.9 0.7 - - - +
88A ILE* 3.4 3.1 - - - -
89A ILE* 2.7 47.7 + - + +
103A ILE* 5.9 0.4 - - + -
104A ALA* 1.3 75.0 - - - +
106A LEU* 1.3 62.8 - - - +
107A GLU 4.2 0.2 + - - -
237A TRP* 3.5 32.5 - - + -
238A ILE* 4.1 25.4 - - + -
241A ASN* 3.8 28.0 - - + -
242A THR* 3.8 13.9 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 106 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
33A LEU* 4.0 18.4 - - + -
44A ALA* 4.3 0.2 - - + -
51A TRP* 3.4 7.1 - - - -
52A LEU* 2.8 69.7 + - + +
54A SER* 4.0 13.7 - - - -
59A TYR* 3.4 41.7 - - + +
85A LEU* 3.9 18.8 - - + -
87A ARG 3.5 4.3 - - - +
88A ILE* 4.1 14.6 - - + -
104A ALA* 4.2 6.7 - - + -
105A LEU* 1.3 81.7 - - - +
107A GLU* 1.3 60.9 + - - +
108A LEU 3.8 0.7 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 107 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
50A ASN* 3.4 13.1 - - + +
51A TRP* 3.5 35.6 + - + +
85A LEU* 3.4 6.6 - - - +
86A LYS* 2.7 54.5 + - + +
87A ARG* 2.8 53.3 + - + +
106A LEU* 1.3 72.3 - - - +
108A LEU* 1.3 66.8 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 108 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
46A LEU* 4.3 10.8 - - + -
49A PRO 3.4 24.7 - - - +
50A ASN* 2.8 26.6 + - - +
52A LEU* 3.8 32.5 - - + -
66A ALA* 4.2 4.7 - - + -
68A LEU* 4.5 3.8 - - + -
83A ARG* 4.0 22.4 - - + -
84A ARG 3.7 2.7 - - - +
85A LEU* 4.0 11.0 - - + -
86A LYS* 4.0 5.9 - - - -
107A GLU* 1.3 83.2 - - - +
109A GLU* 1.3 65.3 + - - +
110A LYS* 3.4 16.5 - - - +
112A ALA* 3.8 21.1 - - + +
----------------------------------------------------------
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