Contacts of the strand formed by residues 34 - 37 (chain L) in PDB entry 1G3I
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 VAL 34 (chain L).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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3L ILE* 4.4 5.4 - - + -
14L VAL* 3.6 39.5 - - + +
15L GLY 4.1 2.7 - - - -
16L GLY* 3.9 25.8 - - - +
32L ARG* 3.2 9.4 + - - +
33L LYS* 1.3 85.5 - - - +
35L ARG* 1.3 73.9 + - - +
43L LEU* 5.2 0.7 - - + -
44L ALA 3.3 13.9 - - - +
45L GLY* 3.7 10.5 - - - -
168L THR* 4.3 16.8 - - - +
170L GLU* 4.4 20.2 - - + +
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Residues in contact with ARG 35 (chain L).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
440E SER 2.9 33.1 + - - -
441E ARG* 3.7 19.4 + - - +
443E ILE 3.2 16.8 + - - -
444E LEU* 4.3 7.7 + - - +
32L ARG* 3.0 66.7 + - - +
34L VAL* 1.3 85.0 - - - +
36L ARG* 1.3 68.9 + - - +
43L LEU* 3.9 2.8 - - - +
44L ALA* 2.9 34.5 + - - +
46L PHE* 4.3 12.1 - - + -
54L PHE* 3.9 17.4 - - - -
57L PHE* 4.2 22.4 - - + -
170L GLU* 5.1 2.2 - - - -
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Residues in contact with ARG 36 (chain L).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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441E ARG* 3.5 23.4 + - - -
35L ARG* 1.3 81.2 - - - +
37L LEU* 1.3 63.4 + - - +
40L GLY* 4.0 30.7 + - - +
42L VAL 3.4 8.1 - - - +
43L LEU* 3.6 10.8 - - + +
170L GLU* 2.4 60.9 + - + +
171L GLU 3.6 18.0 + - - -
172L LEU* 3.6 18.4 - - - +
173L PRO* 4.5 6.1 - - - +
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Residues in contact with LEU 37 (chain L).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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441E ARG* 4.0 8.1 - - - +
36L ARG* 1.3 78.9 - - - +
38L TYR* 1.3 75.3 + - - +
39L ASN 3.3 2.2 + - - -
40L GLY 3.4 1.9 + - - -
41L LYS 3.2 9.4 + - - -
42L VAL* 3.0 29.2 + - + +
44L ALA* 3.7 25.1 - - + -
57L PHE* 3.1 41.3 - - + +
60L PHE* 3.8 26.7 - - + -
61L GLU* 3.5 30.7 - - + +
64L LEU* 4.0 9.2 - - + -
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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
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Atomic class I II III IV V VI VII VIII
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I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
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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