Contacts of the strand formed by residues 27 - 30 (chain A) in PDB entry 2JIB
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 THR 27 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
25A ILE* 3.5 14.3 - - - +
26A ASP* 1.3 96.7 + - - +
28A MET* 1.3 70.4 + - - +
29A TYR* 3.7 34.2 - - + +
43A TRP* 3.9 0.6 - - - -
49A ARG* 2.8 30.7 + - + +
51A TYR* 3.7 26.5 - - + -
75A VAL* 4.1 8.7 + - - +
441A VAL* 6.1 1.1 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with MET 28 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
20A LEU* 4.4 9.4 - - + -
25A ILE* 4.9 1.6 - - + -
27A THR* 1.3 79.1 - - - +
29A TYR* 1.3 65.6 + - - +
39A LEU* 4.4 13.2 - - + +
40A ALA* 5.1 0.2 - - - -
43A TRP* 3.7 47.1 - - + +
49A ARG 3.0 6.7 + - - +
50A PHE* 3.4 20.9 - - + -
51A TYR* 2.9 27.0 + - - +
75A VAL* 3.4 32.3 - - + +
77A LEU* 4.2 28.3 - - + -
104A LEU* 4.2 14.4 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 29 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
27A THR* 3.7 22.0 - - + +
28A MET* 1.3 74.5 - - - +
30A GLY* 1.3 59.8 + - - +
50A PHE* 4.6 1.6 - - - -
51A TYR* 3.5 29.2 - + - -
53A PHE* 3.6 25.6 - + + -
59A ALA* 3.3 20.2 - - - +
62A ALA* 3.8 6.3 - - + -
63A ALA* 4.0 13.2 - - - -
66A ALA* 3.8 19.0 - - + +
74A GLY* 5.1 0.4 - - - -
75A VAL 3.1 20.3 + - - +
76A CYS* 3.2 6.6 - - - -
77A LEU 3.0 20.9 + - - -
436A VAL* 4.6 1.1 - - + -
437A ALA* 3.9 26.5 - - + -
440A ALA* 4.1 4.4 - - + +
441A VAL* 3.5 27.4 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLY 30 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
29A TYR* 1.3 76.3 - - - +
31A VAL* 1.3 61.8 + - - +
50A PHE* 3.9 14.6 - - - -
51A TYR 2.9 10.9 + - - -
52A SER* 3.3 2.9 - - - -
53A PHE* 2.8 32.4 + - - -
59A ALA* 3.5 12.1 - - - +
76A CYS* 4.9 0.7 - - - -
77A LEU 3.2 13.0 - - - -
78A THR* 5.6 0.2 - - - -
----------------------------------------------------------
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