Contacts of the strand formed by residues 56 - 60 (chain A) in PDB entry 5A91
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 GLN 56 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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48A LEU* 3.1 11.0 - - - +
49A ILE* 4.3 17.4 - - + +
54A ASN 3.8 11.0 + - - +
55A SER* 1.3 83.0 - - - +
57A ILE* 1.3 66.8 + - - +
59A LEU* 3.7 31.6 + - + +
184A LEU* 4.0 25.6 - - - +
188A GLN* 4.6 8.7 - - - +
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Residues in contact with ILE 57 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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29A VAL* 3.7 34.5 - - + -
30A GLN* 4.1 12.1 - - - +
33A LEU* 4.3 5.4 - - + -
46A VAL* 3.7 3.8 - - + +
47A ALA* 3.4 4.3 + - - -
48A LEU* 2.9 50.4 + - + -
56A GLN* 1.3 76.1 - - - +
59A LEU* 1.3 63.2 + - - +
286A VAL* 3.6 41.3 - - + +
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Residues in contact with LEU 59 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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30A GLN* 2.8 30.3 + - - +
46A VAL* 3.4 1.8 - - - -
47A ALA* 3.9 14.8 - - + -
48A LEU 4.7 0.9 - - - +
49A ILE* 6.2 0.2 - - + -
56A GLN* 3.7 38.1 - - + +
57A ILE* 1.3 83.1 - - - +
60A TYR* 1.3 60.4 + - - +
61A ARG 4.3 0.2 - - - -
62A ALA* 3.7 24.0 - - + +
63A ASP* 5.8 3.1 - - - +
184A LEU* 4.1 17.7 - - + -
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Residues in contact with TYR 60 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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30A GLN* 3.6 17.7 - - - -
33A LEU* 3.8 28.7 - - + -
34A GLU* 3.5 46.8 + - + +
37A GLU* 2.7 36.2 + - + -
44A LEU* 3.3 40.2 - - + -
45A GLY* 3.3 0.9 - - - -
46A VAL* 2.8 42.0 + - + -
59A LEU* 1.3 74.7 - - - +
61A ARG* 1.3 81.9 + - + +
62A ALA 3.1 0.7 + - - +
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Residues in contact with ARG 61 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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37A GLU* 2.8 37.4 + - - -
43A ARG* 3.7 13.9 - - - +
44A LEU 3.3 20.6 - - - +
45A GLY* 4.3 2.0 - - - -
60A TYR* 1.3 84.9 + - + +
62A ALA* 1.3 63.9 + - - +
63A ASP 3.2 3.1 - - - -
64A GLU* 2.9 61.1 + - + +
66A PHE* 3.9 1.8 - - + -
183A PRO* 3.7 10.6 - - - +
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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