Contacts of the strand formed by residues 37 - 43 (chain A) in PDB entry 3F5O
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 LYS 37 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
32A SER* 4.1 1.4 + - - +
33A ALA* 3.7 0.5 - - - -
34A ALA* 2.9 40.5 + - + +
35A PRO 4.2 5.4 - - - +
36A GLY* 1.3 79.6 - - - +
38A VAL* 1.3 67.8 + - - +
39A ILE* 4.1 18.7 - - + +
71A ALA* 4.4 2.2 + - - +
103A THR* 3.7 25.0 - - - +
104A ALA 3.3 11.7 - - - +
105A HIS* 4.3 11.4 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 38 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
8A LEU* 3.8 18.4 - - + -
30A LEU* 3.6 25.4 - - + -
32A SER 3.5 3.1 - - - -
33A ALA* 4.3 2.2 - - + -
37A LYS* 1.3 79.0 - - - +
39A ILE* 1.3 66.5 + - - +
40A CYS* 4.0 5.8 - - - -
67A ILE* 4.0 21.8 - - + +
70A MET* 3.8 11.4 - - + +
71A ALA* 3.6 31.2 - - + +
74A CYS* 4.0 9.0 - - - -
102A ILE 3.7 1.4 - - - +
103A THR* 3.5 2.8 - - - -
104A ALA* 2.9 33.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 39 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
30A LEU* 3.5 4.9 - - - +
31A VAL* 2.7 46.8 + - + -
32A SER* 2.9 30.8 + - - +
37A LYS* 4.1 23.6 - - + +
38A VAL* 1.3 77.5 - - - +
40A CYS* 1.3 59.4 + - - +
101A VAL* 3.5 29.6 - - + -
102A ILE 3.4 2.0 - - - -
103A THR* 4.0 18.6 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with CYS 40 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
12A ILE* 4.5 1.8 - - - -
28A ILE* 4.3 13.9 - - + -
29A THR 3.1 12.6 - - - +
30A LEU* 3.8 24.9 - - - -
31A VAL* 4.2 0.7 - - - +
38A VAL* 4.0 8.5 - - - -
39A ILE* 1.3 73.0 - - - +
41A GLU* 1.3 71.8 + - - +
67A ILE* 3.9 28.3 - - + -
70A MET* 4.4 4.5 - - - -
101A VAL* 3.4 3.1 - - - +
102A ILE* 2.8 43.8 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 41 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
28A ILE* 3.4 3.8 - - - +
29A THR* 2.8 44.6 + - - +
31A VAL* 3.5 26.0 - - + +
39A ILE* 5.6 0.3 - - - +
40A CYS* 1.3 80.3 - - - +
42A MET* 1.3 65.1 - - - +
99A ASP* 6.1 1.6 - - + -
100A ILE 3.1 13.5 - - - +
101A VAL* 4.0 16.6 - - + +
102A ILE* 4.3 3.6 - - - -
123A LYS* 3.0 42.3 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with MET 42 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
24A VAL 5.4 0.9 - - - +
25A LEU* 5.4 4.0 - - - -
27A LYS* 4.1 14.8 - - + +
28A ILE* 3.9 26.7 - - + -
29A THR* 5.2 0.4 - - - -
41A GLU* 1.3 77.4 - - - +
43A LYS* 1.3 70.6 + - - +
44A VAL* 3.8 6.2 + - + -
48A HIS* 3.6 48.5 - - + +
55A LEU* 4.2 16.6 - - + -
59A LEU* 4.3 4.3 - - + -
63A LEU* 4.6 11.4 - - + -
98A GLU 3.7 0.3 - - - +
99A ASP* 3.5 4.1 - - - -
100A ILE* 2.8 55.1 + - + +
102A ILE* 4.3 2.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 43 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
27A LYS* 5.1 3.6 + - - +
42A MET* 1.3 75.9 - - - +
44A VAL* 1.3 69.8 + - - +
45A GLU* 3.3 21.6 + - + +
48A HIS* 3.4 17.2 + - - -
97A GLY* 2.8 39.4 + - - +
98A GLU 3.5 3.6 - - - +
99A ASP* 3.5 22.9 + - - +
----------------------------------------------------------
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