Contacts of the strand formed by residues 53 - 56 (chain D) 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 ILE 53 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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26D ALA* 4.0 8.7 - - + +
27D VAL* 3.5 43.1 - - + +
30D ALA* 4.0 10.3 - - + -
51D LYS 4.2 2.7 - - - +
52D ASN* 1.3 77.0 - - - +
54D LEU* 1.3 60.8 + - - +
55D MET* 4.0 9.9 - - + -
304D LEU* 5.0 3.6 - - + -
305D PHE 2.9 7.6 + - - +
306D ILE* 3.2 16.6 - - + -
307D ALA* 2.6 34.3 + - - +
327D LEU* 4.6 4.7 - - - +
329D ILE* 3.6 22.7 - - + +
331D VAL* 3.5 28.9 - - + -
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Residues in contact with LEU 54 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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53D ILE* 1.3 76.5 - - - +
55D MET* 1.3 62.5 + - - +
56D ILE* 3.2 23.7 - - + +
259D ILE* 4.2 7.2 - - + -
307D ALA* 3.1 31.9 - - + +
308D SER 4.0 1.6 - - - +
311D PHE* 4.1 17.0 - - + -
316D PRO* 3.6 27.8 - - + -
319D LEU* 4.7 4.5 - - + -
327D LEU* 4.0 20.2 - - + -
329D ILE 2.9 12.3 + - - +
330D ARG* 3.5 16.2 - - - +
331D VAL 3.2 21.3 + - - -
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Residues in contact with MET 55 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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23D ALA* 4.8 8.3 - - - +
27D VAL* 4.1 22.0 - - + -
53D ILE* 4.1 2.5 - - + -
54D LEU* 1.3 75.5 - - - +
56D ILE* 1.3 62.7 + - - +
57D GLY 4.1 0.2 - - - -
63D LYS* 3.6 46.7 - - + +
66D ILE* 4.6 7.4 - - + -
67D ALA* 4.6 3.1 - - + -
255D PHE* 4.4 0.9 - - + -
306D ILE* 3.1 32.5 - - + -
307D ALA 2.7 13.5 + - - +
308D SER* 3.3 3.1 - - - -
309D GLY 3.2 23.4 + - - +
331D VAL* 3.4 17.0 - - + -
333D LEU* 3.6 23.1 - - + -
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Residues in contact with ILE 56 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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54D LEU* 3.2 42.0 - - + +
55D MET* 1.3 75.0 - - - +
57D GLY* 1.3 62.5 + - - +
63D LYS* 4.1 0.7 - - - -
309D GLY 3.3 3.8 - - - +
310D ALA 3.7 16.8 - - - +
311D PHE* 3.8 20.9 - - + -
316D PRO* 4.0 12.6 - - + -
330D ARG* 4.6 10.5 - - + -
331D VAL 3.0 13.7 + - - +
332D GLU* 3.5 18.8 - - + +
333D LEU* 2.9 23.9 + - - +
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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