Contacts of the strand formed by residues 101 - 106 (chain M) in PDB entry 4R2G
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 ALA 101 (chain M).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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5M TYR* 2.7 38.1 + - + +
6M VAL* 4.1 7.9 - - + -
7M SER* 2.9 27.7 + - - -
85M ASP* 4.2 10.1 - - + +
86M TYR 4.0 3.8 - - - -
87M TYR* 3.7 22.4 - - + +
100M GLY* 1.3 74.6 - - - -
102M THR* 1.3 62.5 + - - +
103M ARG 4.0 0.2 - - - -
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Residues in contact with THR 102 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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7M SER* 3.3 16.2 + - - +
11M LEU* 3.9 24.7 - - + -
21M ILE* 3.2 42.8 - - + +
22M SER 5.1 2.3 + - - -
84M ALA 3.6 1.2 - - - +
85M ASP* 3.2 4.7 - - - -
86M TYR* 2.8 42.3 + - - -
101M ALA* 1.3 75.3 + - - +
103M ARG* 1.3 64.2 + - - +
104M LEU* 3.6 2.0 + - - +
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Residues in contact with ARG 103 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
5M TYR* 3.3 21.0 + - - -
6M VAL* 3.5 32.5 - - + +
7M SER 2.9 10.5 + - - +
8M PRO* 3.6 6.0 - - + +
11M LEU 3.0 26.1 + - - +
40M PRO* 5.4 10.8 - - - +
84M ALA 3.7 4.7 - - - +
85M ASP* 2.6 38.7 + - - +
101M ALA 4.0 0.8 - - - -
102M THR* 1.3 71.2 - - - +
104M LEU* 1.3 63.9 - - - +
105M THR* 3.6 5.5 + - - +
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Residues in contact with LEU 104 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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11M LEU* 3.5 33.0 - - + +
13M VAL* 3.5 33.2 - - + -
19M ALA* 4.0 8.5 - - + -
21M ILE* 4.9 4.9 - - + -
75M ILE* 4.0 13.7 - - + -
78M VAL* 4.8 1.8 - - + -
82M ASP* 3.3 29.4 - - + +
83M GLU* 3.4 24.8 - - - +
84M ALA 3.2 10.4 + - - +
86M TYR* 3.9 24.0 - - + -
102M THR* 3.6 1.4 + - + -
103M ARG* 1.3 73.1 - - - +
105M THR* 1.3 59.7 + - - +
106M VAL* 4.3 6.7 - - + -
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Residues in contact with THR 105 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
8M PRO* 5.5 3.8 - - - +
11M LEU 2.9 12.0 + - - -
12M SER* 3.4 17.1 + - - +
13M VAL* 3.0 27.7 + - - +
83M GLU* 4.0 8.5 - - - +
103M ARG* 4.0 6.6 + - - +
104M LEU* 1.3 73.8 - - - +
106M VAL* 1.3 80.0 + - - +
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Residues in contact with VAL 106 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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13M VAL* 3.4 20.9 - - + +
15M LEU* 3.9 29.6 - - + -
78M VAL* 4.2 9.9 - - + -
79M GLU 3.9 18.4 - - - +
80M VAL* 4.7 2.5 - - - +
82M ASP 4.6 0.2 - - - -
83M GLU* 3.0 36.5 + - + +
104M LEU* 4.3 13.2 - - + -
105M THR* 1.3 76.6 - - - +
106M LEU* 1.3 72.8 + - - +
107M SER* 4.0 0.2 - - - -
108M GLN* 2.9 23.4 - - - +
141M TYR* 4.3 2.3 + - - -
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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