Contacts of the helix formed by residues 88 - 96 (chain B) in PDB entry 2GF2
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 SER 88 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
68B TYR* 3.8 8.3 - - - -
86B VAL* 3.6 2.2 - - - +
87B SER* 1.3 81.7 + - - +
89B PRO* 1.3 74.6 - - - +
90B ALA* 3.3 7.4 + - - +
91B ASP* 2.9 32.6 + - - +
92B VAL* 3.1 22.9 + - - +
117B ASN* 3.8 22.0 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with PRO 89 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
45B ILE* 3.8 24.2 - - + -
68B TYR* 3.6 28.2 - - + -
88B SER* 1.3 81.5 - - - +
90B ALA* 1.3 63.0 + - - +
92B VAL* 3.2 7.2 + - + +
93B ALA* 3.1 21.8 + - - +
112B ALA* 3.5 37.9 - - + +
117B ASN* 3.3 17.7 - - + +
118B GLY* 4.6 0.7 - - - -
119B ILE* 3.9 7.5 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 90 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
88B SER* 3.5 6.3 - - - +
89B PRO* 1.3 74.1 - - - +
91B ASP* 1.3 59.1 + - - +
93B ALA* 3.1 2.8 + - - +
94B GLU 2.9 23.2 + - - -
117B ASN* 3.0 27.2 + - + +
118B GLY 3.4 17.4 + - - +
119B ILE* 4.3 2.5 - - - +
121B LYS* 4.2 5.6 - - + -
122B LYS* 3.4 37.4 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 91 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
86B VAL* 3.7 21.6 - - + +
87B SER* 2.7 26.5 + - - -
88B SER* 2.9 25.0 + - - +
90B ALA* 1.3 74.4 - - - +
92B VAL* 1.3 64.6 + - - +
94B GLU* 3.5 22.8 - - - +
95B LYS* 3.7 15.6 + - - +
122B LYS* 3.1 25.3 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 92 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
43B GLY* 3.5 31.9 - - - -
45B ILE* 4.0 11.9 - - + -
66B ILE* 3.6 21.4 - - + +
68B TYR* 3.7 18.6 - - + +
86B VAL* 3.4 20.4 - - + -
88B SER 3.1 9.9 + - - +
89B PRO 3.2 7.4 + - - +
91B ASP* 1.3 77.2 - - - +
93B ALA* 1.3 56.5 + - - +
95B LYS* 3.1 5.5 + - - +
96B ALA* 2.9 26.2 + - - +
99B ILE* 4.1 17.9 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 93 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
89B PRO 3.1 10.8 + - - +
90B ALA 3.1 8.5 + - - +
92B VAL* 1.3 73.5 - - - +
94B GLU* 1.3 64.4 + - - +
95B LYS 3.4 0.7 + - - -
96B ALA 3.4 12.2 + - - +
99B ILE* 3.6 24.7 - - + +
119B ILE* 3.6 29.2 - - + +
122B LYS 3.6 8.3 - - - +
123B VAL* 4.0 13.0 - - + +
124B LYS* 4.4 12.6 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 94 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
90B ALA 2.9 11.4 + - - +
91B ASP* 3.5 21.8 - - - +
92B VAL 3.2 0.2 - - - -
93B ALA* 1.3 77.0 - - - +
95B LYS* 1.3 69.0 + - + +
122B LYS* 3.5 41.8 + - + -
124B LYS* 3.0 26.0 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 95 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
41B PRO* 3.6 12.3 - - - +
66B ILE* 3.4 23.3 - - + +
84B GLN* 3.6 34.8 - - - +
86B VAL* 4.4 7.4 - - + -
91B ASP 3.7 12.8 + - - +
92B VAL 3.1 4.7 + - - +
94B GLU* 1.3 92.2 - - + +
96B ALA* 1.3 58.3 + - - +
124B LYS* 5.8 0.2 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 96 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
41B PRO* 3.9 9.9 - - - +
43B GLY* 3.5 31.2 - - - +
66B ILE* 3.7 12.3 - - + -
92B VAL 2.9 12.8 + - - +
93B ALA 3.4 14.7 + - - +
94B GLU 3.8 0.2 - - - -
95B LYS* 1.3 80.9 - - - +
97B ASP* 1.3 61.0 + - - +
98B ARG 3.4 5.1 + - - +
99B ILE* 3.9 13.8 - - + +
124B LYS* 6.1 0.3 - - - +
127B SER* 4.2 3.6 + - - -
----------------------------------------------------------
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