Contacts of the strand formed by residues 123 - 127 (chain E) in PDB entry 4QRR
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 ARG 123 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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48D LYS* 3.7 39.2 - - - +
9E ARG 2.9 8.2 + - - +
10E TYR* 3.5 26.6 - - + -
11E LEU* 2.9 29.1 + - - +
44E GLN* 4.4 6.3 + - - +
46E PRO* 5.4 8.3 - - - +
100E ALA* 3.9 10.5 - - - +
101E LEU* 3.6 43.2 - - + +
122E THR* 1.3 71.6 - - - +
124E LEU* 1.3 65.0 + - - +
125E THR* 4.6 7.2 - - + -
166E ASP 5.1 2.7 + - - +
167E HIS* 3.8 22.5 - - + +
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Residues in contact with LEU 124 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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11E LEU* 3.5 27.4 - - + +
13E LYS* 4.3 18.2 - - + +
19E VAL* 4.3 24.7 - - + -
21E LEU* 5.6 3.6 - - + -
94E LEU* 3.8 26.2 - - + -
98E ASP 3.9 8.7 - - - +
99E SER* 3.4 1.7 - - - -
100E ALA* 3.0 38.4 + - - +
102E TYR* 3.7 30.5 - - + -
122E THR* 3.5 3.3 + - + +
123E ARG* 1.3 75.7 - - - +
125E THR* 1.3 67.3 + - - +
126E VAL* 3.9 9.2 - - + -
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Residues in contact with THR 125 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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11E LEU 3.2 6.1 + - - -
12E ILE* 3.8 8.7 - - - +
13E LYS 3.5 19.9 + - - +
99E SER* 3.9 9.2 - - - -
123E ARG* 4.6 9.6 - - - -
124E LEU* 1.3 78.3 - - - +
126E VAL* 1.3 62.6 + - - +
127E THR* 3.8 7.1 + - - +
165E PRO* 3.7 22.6 - - + +
167E HIS* 2.9 37.8 + - + +
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Residues in contact with VAL 126 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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13E LYS* 3.4 5.6 - - + +
14E THR 3.9 6.3 - - - +
15E ARG* 3.8 26.7 - - + +
94E LEU* 3.8 31.0 - - + -
95E GLU 3.4 35.2 - - - +
96E LEU* 3.9 14.4 - - - +
98E ASP* 4.3 0.2 - - + -
99E SER* 2.9 27.1 + - - +
124E LEU* 3.9 17.7 - - + -
125E THR* 1.3 70.8 - - - +
127E THR* 1.3 64.8 + - - +
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Residues in contact with THR 127 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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12E ILE* 4.3 8.0 - - + +
13E LYS 3.1 10.8 + - - -
14E THR* 3.3 22.9 - - - +
15E ARG 3.4 5.0 + - - -
96E LEU* 4.5 5.8 - - - -
125E THR* 4.6 10.8 - - - +
126E VAL* 1.3 78.3 - - - +
128E GLU* 1.3 63.9 + - - +
129E ASP 3.2 20.8 + - - +
130E LEU* 3.9 12.0 - - - +
133E VAL* 5.0 4.2 - - + +
164E TYR* 4.1 31.2 - - + +
165E PRO* 5.7 3.1 - - + -
198E ASP* 5.0 4.7 - - - +
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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