Contacts of the strand formed by residues 124 - 128 (chain V) in PDB entry 3TDD
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 TYR 124 (chain V).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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292 ARG* 3.1 15.8 + - - -
165M ARG* 4.6 2.4 + - - -
199M PHE* 3.6 23.9 - + - -
5V GLY 3.2 10.1 - - - +
6V VAL* 4.4 9.4 - - + -
122V GLY* 3.4 1.1 - - - -
123V TYR* 1.3 85.8 + - + +
125V LEU* 1.3 74.4 + - - +
135V MET* 3.8 23.9 - - + +
138V LEU* 3.5 33.4 - - + -
139V GLU* 2.8 31.0 + - - -
142V TRP* 3.7 47.2 - + + -
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Residues in contact with LEU 125 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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282 ASN* 5.7 4.5 - - + +
4V VAL* 3.0 7.6 - - - +
5V GLY 2.9 30.8 + - - +
100V ILE* 3.9 13.5 - - + -
110V LEU* 3.9 24.2 - - + +
111V PHE* 3.7 34.3 - - - +
112V SER* 3.8 19.5 - - - +
120V ASP* 4.8 4.9 - - + +
121V VAL 4.8 3.1 - - - +
122V GLY* 4.3 19.1 - - - +
124V TYR* 1.3 83.2 - - - +
126V SER* 1.3 62.1 + - - +
127V LEU* 6.0 0.4 - - + -
135V MET* 4.5 4.5 - - - -
138V LEU* 4.0 4.8 - - - +
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Residues in contact with SER 126 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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252 TYR* 4.6 0.9 + - - -
3V ILE 3.1 11.4 - - - -
4V VAL* 4.0 11.9 - - - -
100V ILE* 4.0 0.7 - - - -
125V LEU* 1.3 76.7 - - - +
127V LEU* 1.3 75.0 + - - +
131V SER* 2.9 36.8 + - - -
134V ALA* 4.0 7.9 - - - -
135V MET* 3.7 19.4 - - - +
138V LEU* 4.2 6.7 - - - -
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Residues in contact with LEU 127 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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2V THR* 3.8 2.6 - - - -
3V ILE* 2.9 46.1 + - + +
46V ALA* 4.6 4.0 - - + -
98V TYR* 3.9 16.2 - - + -
99V LEU 3.7 36.1 - - - +
100V ILE* 3.7 15.0 - - + -
112V SER* 4.5 9.2 - - - -
113V ILE 4.4 4.3 - - - +
114V HIS* 4.2 24.9 - - + +
125V LEU* 6.0 0.4 - - + -
126V SER* 1.3 81.9 - - - +
128V GLY* 1.3 64.2 + - - +
131V SER* 3.7 9.5 + - - +
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Residues in contact with GLY 128 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1V THR* 3.3 11.9 - - - -
46V ALA* 4.2 15.7 - - - +
98V TYR* 6.1 0.2 - - - +
127V LEU* 1.3 76.5 - - - +
129V SER* 1.3 60.1 + - - -
130V GLY 3.1 2.9 - - - -
131V SER* 2.6 30.4 - - - -
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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