Contacts of the strand formed by residues 34 - 38 (chain X) in PDB entry 3SDI
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 THR 34 (chain X).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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14X LEU* 4.4 2.3 - - - +
16X SER* 5.2 3.8 - - - -
32X ASP* 2.8 34.1 + - - +
33X LYS* 1.3 79.3 - - - +
35X ARG* 1.3 77.9 + - - +
42X LEU* 3.4 25.1 - - + +
43X MET 2.9 19.0 + - - -
44X SER* 4.0 5.4 + - - -
45X PHE* 3.4 5.0 - - - -
176X LYS* 3.1 30.9 - - + +
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Residues in contact with ARG 35 (chain X).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
32X ASP* 4.3 15.2 + - - +
34X THR* 1.3 84.9 + - - +
36X GLN* 1.3 63.7 + - - +
37X LEU* 3.4 13.6 + - + +
42X LEU* 3.4 4.4 - - - +
43X MET* 3.0 30.4 + - + +
45X PHE* 3.9 6.0 - - + -
53X VAL* 3.8 20.1 - - - +
56X ALA* 3.8 29.4 - - + -
57X GLU* 2.6 39.7 + - - +
60X GLN* 3.8 29.6 - - + +
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Residues in contact with GLN 36 (chain X).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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34X THR* 5.3 0.4 - - - +
35X ARG* 1.3 69.8 - - - +
37X LEU* 1.3 60.6 + - - +
38X SER* 3.2 21.5 - - - +
39X PRO* 3.3 25.4 + - - +
42X LEU* 3.6 14.1 - - + +
60X GLN* 2.6 31.6 + - - +
64X GLN* 4.3 3.5 + - - -
184X ILE* 3.7 31.4 + - + +
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Residues in contact with LEU 37 (chain X).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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35X ARG* 3.9 13.2 - - + +
36X GLN* 1.3 76.2 - - - +
38X SER* 1.3 61.4 + - - +
41X THR* 2.8 24.5 + - + +
43X MET* 3.8 37.9 - - + +
59X ILE* 3.9 21.8 - - + -
60X GLN* 3.9 28.7 - - + +
63X ILE* 3.4 28.2 - - + +
64X GLN* 4.1 17.0 - - - +
67X SER* 5.4 0.3 + - - -
79X VAL* 3.7 25.6 - - + -
83X VAL* 5.1 0.2 - - + -
101X ILE* 5.0 2.5 - - + -
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Residues in contact with SER 38 (chain X).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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36X GLN* 3.2 12.4 - - - +
37X LEU* 1.3 78.2 - - - +
39X PRO* 1.3 67.7 - - - +
40X HIS 2.8 8.8 + - - -
41X THR* 2.9 34.9 + - - +
63X ILE* 4.4 10.5 - - - +
67X SER* 4.7 8.1 - - - -
73X GLU* 2.9 35.3 + - - +
74X LEU 4.7 2.2 + - - -
79X VAL* 5.3 1.4 - - - +
184X ILE* 3.6 0.2 - - - +
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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