Contacts of the strand formed by residues 132 - 136 (chain G) in PDB entry 2KVQ
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 GLU 132 (chain G).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
127G LEU 3.4 5.1 - - - +
128G PHE* 3.1 17.6 - - + -
129G GLU* 2.8 53.7 + - + +
130G PRO 3.2 0.4 + - - -
131G GLY* 1.3 80.3 - - - +
133G MET* 1.3 71.4 + - - +
134G VAL* 3.8 0.9 - - - +
147G VAL* 3.1 1.1 - - - +
148G VAL* 2.9 28.5 + - + +
180G LYS* 3.0 43.5 - - - +
181G ALA* 4.7 4.9 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with MET 133 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
131G GLY 3.7 3.1 + - - +
132G GLU* 1.3 84.5 - - - +
134G VAL* 1.3 64.5 + - - +
145G ASN* 4.3 26.2 - - + +
146G GLY* 3.0 9.4 - - - +
147G VAL* 3.7 21.8 - - + +
181G ALA* 3.2 35.1 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 134 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
128G PHE* 3.2 35.4 - - + -
132G GLU 3.8 8.5 - - - +
133G MET* 1.3 78.6 - - - +
135G ARG* 1.3 71.5 + - - +
136G VAL* 5.1 2.9 - - + -
145G ASN* 3.4 6.9 - - - +
146G GLY 2.6 29.9 + - - +
148G VAL* 4.4 1.8 - - + -
158G LEU* 5.2 1.1 - - + -
160G VAL* 3.3 47.1 - - + -
178G VAL* 4.6 19.1 - - + -
179G GLU 3.3 9.6 - - - +
181G ALA* 4.0 2.6 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 135 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
134G VAL* 1.3 82.0 - - - +
136G VAL* 1.3 57.0 + - - +
137G ASN* 4.8 9.4 + - - +
144G PHE 3.8 5.9 + - - +
145G ASN* 4.7 13.9 - - + +
178G VAL* 2.7 16.0 - - - +
179G GLU* 2.5 63.7 + - + +
180G LYS 4.3 13.5 - - - -
181G ALA* 4.0 14.1 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 136 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
134G VAL* 5.1 6.3 - - + -
135G ARG* 1.3 74.1 - - - +
137G ASN* 1.3 72.1 + - - +
138G ASP 3.6 12.1 - - - +
141G PHE* 2.8 44.0 - - + +
143G ASP 2.7 22.1 + - - -
144G PHE 2.8 19.3 + - - +
145G ASN* 5.3 1.6 - - - -
160G VAL* 5.6 0.9 - - + -
162G VAL* 4.2 16.6 - - + -
173G LEU* 3.1 34.1 - - + -
177G GLN* 4.4 1.1 - - + +
178G VAL* 3.6 8.1 - - + -
----------------------------------------------------------
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