Contacts of the strand formed by residues 56 - 62 (chain D) in PDB entry 1I2M
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 GLU 56 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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140C ARG* 5.2 6.6 + - - +
41D GLY 3.4 7.9 - - - +
42D GLN* 2.8 35.5 + - - +
48D LEU* 3.9 1.7 - - - +
54D VAL* 3.4 2.8 - - - +
55D MET* 1.3 84.6 - - + +
57D ARG* 1.3 94.1 + - - +
58D LYS* 3.6 24.8 - - + +
375D TYR* 3.4 21.5 - - + -
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Residues in contact with ARG 57 (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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39D THR 4.2 1.3 - - - +
40D LEU* 3.7 15.4 - - - +
41D GLY* 2.9 34.5 + - - +
48D LEU* 4.0 4.9 - - + -
50D LEU* 3.4 27.2 - - + +
54D VAL* 3.4 32.1 - - + +
56D GLU* 1.3 92.2 + - - +
58D LYS* 1.3 65.5 + - - +
59D LYS 3.5 13.9 + - - +
61D ALA* 3.5 23.5 - - + +
375D TYR* 4.2 2.3 - - - +
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Residues in contact with LYS 58 (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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40D LEU* 5.0 0.7 - - - -
56D GLU* 3.6 25.1 - - + +
57D ARG* 1.3 75.1 - - - +
59D LYS* 1.3 70.9 + - + +
375D TYR* 3.7 53.6 + - + +
378D GLY* 3.8 17.6 + - - -
380D GLY* 3.7 24.2 + - - +
381D GLN* 6.0 1.0 - - - +
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Residues in contact with LYS 59 (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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40D LEU* 4.1 4.7 - - - -
57D ARG* 3.2 18.4 - - - +
58D LYS* 1.3 88.7 - - + +
60D PRO* 1.3 76.0 - - + +
61D ALA* 3.3 4.3 + - - +
378D GLY 3.0 22.7 + - - +
379D THR* 3.5 13.3 + - - +
380D GLY* 4.0 15.7 - - - +
392D MET* 3.3 27.3 + - - +
393D GLY* 4.6 9.0 - - - -
394D LYS 5.9 0.7 - - - +
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Residues in contact with PRO 60 (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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38D LEU* 3.9 26.9 - - + -
39D THR 3.5 8.7 - - - +
40D LEU* 4.1 18.6 - - + -
58D LYS 4.8 0.2 - - - +
59D LYS* 1.3 95.6 - - + +
61D ALA* 1.3 59.0 + - - +
378D GLY* 4.9 3.1 - - - -
391D MET* 4.6 4.0 - - + -
392D MET 4.5 7.4 - - - +
393D GLY* 5.1 3.6 - - - -
395D GLN* 3.1 24.4 + - + +
396D LEU* 4.1 16.2 - - + -
413D LEU* 4.0 18.8 - - + -
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Residues in contact with ALA 61 (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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38D LEU* 3.0 7.5 - - - -
39D THR 2.9 30.9 + - - +
50D LEU* 3.7 18.4 - - + -
57D ARG* 3.5 34.5 - - + +
59D LYS 3.3 0.2 + - - -
60D PRO* 1.3 75.6 - - - +
62D LEU* 1.3 62.4 + - - +
63D VAL* 3.5 3.3 + - - +
395D GLN* 4.2 1.8 - - - -
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Residues in contact with LEU 62 (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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36D LEU* 3.8 39.7 - - + -
37D VAL 3.6 14.8 - - - +
38D LEU* 3.5 15.4 - - + +
50D LEU* 3.5 13.7 - - - +
61D ALA* 1.3 71.9 - - - +
63D VAL* 1.3 69.3 + - - +
64D SER* 4.0 4.8 + - - +
395D GLN* 4.0 20.1 - - - +
399D ARG* 5.0 5.8 - - - +
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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