Contacts of the strand formed by residues 31 - 36 (chain A) in PDB entry 2LMQ
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 31 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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29A GLY 3.2 13.0 + - - +
30A ALA* 1.3 87.0 - - - +
32A ILE* 1.3 62.5 + - - +
33A GLY* 3.7 5.6 + - - +
29B GLY 3.7 7.2 - - - +
31B ILE* 3.3 10.3 - - + +
38M GLY* 2.7 38.1 - - - +
39M VAL* 3.9 20.2 - - + -
38N GLY* 5.5 0.7 - - - -
39N VAL* 3.4 24.0 - - + -
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Residues in contact with ILE 32 (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 ALA 5.6 0.9 - - - -
31A ILE* 1.3 75.5 - - - +
33A GLY* 1.3 52.9 + - - +
34A LEU* 3.7 32.1 - - + +
31B ILE 2.9 15.7 + - - +
32B ILE* 4.3 24.0 - - + -
33B GLY* 2.3 42.2 + - - +
34B LEU* 4.8 9.2 - - + -
19C PHE* 3.6 48.0 - - + -
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Residues in contact with GLY 33 (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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31A ILE* 3.7 6.9 + - - +
32A ILE* 1.3 70.9 - - - +
34A LEU* 1.3 74.1 + - - +
35A MET* 5.6 0.2 - - - -
33B GLY* 3.2 6.3 - - - -
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Residues in contact with LEU 34 (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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32A ILE* 3.7 21.5 - - + -
33A GLY* 1.3 87.7 - - - +
35A MET* 1.3 73.8 + - - +
36A VAL* 5.1 6.7 - - + -
33B GLY 3.0 7.3 + - - +
34B LEU* 2.9 29.0 - - + +
35B MET* 3.0 12.5 + - - +
19C PHE* 4.5 15.7 - - + -
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Residues in contact with MET 35 (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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34A LEU* 1.3 88.8 - - - +
36A VAL* 1.3 66.2 + - - +
37A GLY 4.1 1.1 + - - -
35B MET* 3.4 43.7 - - + +
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Residues in contact with VAL 36 (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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34A LEU* 5.1 7.2 - - + -
35A MET* 1.3 79.1 - - - +
37A GLY* 1.3 57.6 + - - +
17B LEU* 6.4 0.7 - - + -
34B LEU* 3.9 8.3 - - + -
35B MET 2.9 11.3 + - - +
36B VAL* 3.2 41.8 - - + +
37B GLY 3.6 2.8 + - - -
15C GLN* 3.8 26.1 - - - +
17C LEU* 3.5 30.3 - - + -
19C PHE* 5.6 2.5 - - + -
15D GLN* 5.5 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