Contacts of the strand formed by residues 70 - 74 (chain D) in PDB entry 2K8M
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 GLN 70 (chain D).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
20D LEU* 3.5 44.3 - - + +
21D VAL 3.6 2.7 - - - -
22D GLY* 5.1 1.1 - - - -
54D PHE* 4.0 19.4 - - - -
56D THR* 6.3 0.2 - - - -
68D ASN* 3.9 2.4 + - - +
69D GLU* 1.3 76.2 - - - +
71D PHE* 1.3 62.8 + - - +
72D THR* 4.4 7.7 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 71 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
19D LEU 3.6 0.7 - - - +
20D LEU* 3.9 4.7 - - - +
21D VAL* 3.0 58.1 + - + +
23D ILE* 6.0 2.5 - - + -
44D VAL* 3.5 47.1 - - + -
46D LEU* 4.9 2.9 - - + -
52D LYS* 3.8 29.8 - - + -
53D LYS 4.5 1.6 - - - -
54D PHE* 3.6 31.2 - + + -
56D THR* 6.3 2.0 - - + -
69D GLU 5.9 0.2 - - - -
70D GLN* 1.3 78.5 - - - +
72D THR* 1.3 81.2 + - - +
73D PHE* 3.6 26.7 + + - -
85D LEU* 5.9 2.2 - - + -
87D MET* 5.7 0.7 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with THR 72 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
16D ASN* 5.7 1.6 - - - +
18D GLN* 3.2 28.9 - - + +
20D LEU* 4.6 7.4 - - + -
52D LYS* 4.6 2.4 - - - +
70D GLN* 5.2 7.1 + - - +
71D PHE* 1.3 92.9 - - - +
73D PHE* 1.3 59.7 + - - +
74D LYS* 2.8 24.7 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 73 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
18D GLN* 3.0 17.6 + - - +
19D LEU* 3.0 55.7 + - + +
21D VAL* 4.5 5.2 - - + -
46D LEU* 3.8 8.5 - - + -
52D LYS* 3.5 22.0 - - + +
71D PHE* 3.6 19.3 + + + -
72D THR* 1.3 67.5 - - - +
74D LYS* 1.3 57.5 + - - +
75D VAL* 2.8 39.6 + - + -
80D LEU* 5.8 1.3 - - - -
83D LYS* 3.6 29.4 - - + -
85D LEU* 3.6 37.7 - - + -
108D MET* 5.3 1.1 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 74 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
16D ASN* 4.8 14.4 - - + +
17D ASN 5.3 0.9 - - - -
18D GLN* 3.9 16.2 - - + -
51D LYS* 3.9 14.5 - - - +
52D LYS* 2.9 24.8 + - + +
72D THR* 2.8 26.7 + - + +
73D PHE* 1.3 66.0 - - - +
75D VAL* 1.3 61.2 + - - +
----------------------------------------------------------
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