Contacts of the strand formed by residues 121 - 125 (chain F) in PDB entry 3WTU
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 THR 121 (chain F).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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102F LEU* 4.7 14.4 - - + -
103F VAL 3.4 6.5 - - - +
104F THR* 3.2 23.3 - - + +
119F ASN* 3.1 7.7 + - - +
120F ALA* 1.3 79.2 + - - +
122F ALA* 1.3 73.6 + - - +
131F PHE* 3.6 4.5 - - - -
132F ASN 5.6 0.9 + - - -
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Residues in contact with ALA 122 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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102F LEU* 3.6 5.7 - - - +
103F VAL* 2.7 36.9 + - - +
121F THR* 1.3 80.1 - - - +
123F ALA* 1.3 58.5 + - - +
129F ALA* 4.3 6.1 - - + -
130F ARG 3.9 20.9 - - - +
131F PHE* 3.7 32.8 - - + -
132F ASN 5.5 0.2 - - - +
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Residues in contact with ALA 123 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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100F GLY* 4.4 15.5 - - - +
101F THR 3.6 7.4 - - - +
102F LEU* 4.6 8.3 - - + +
122F ALA* 1.3 76.6 - - - +
124F MET* 1.3 67.6 + - - +
125F LYS* 3.9 1.9 + - - +
128F VAL 3.6 2.1 - - - +
129F ALA* 3.6 15.2 - - - -
130F ARG 4.3 2.9 + - - -
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Residues in contact with MET 124 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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70F PHE* 4.1 11.0 - - + -
91F VAL* 3.8 33.7 - - + +
93F ALA* 4.0 21.1 - - + -
97F VAL* 4.4 15.0 - - + +
98F PRO 4.4 13.0 - - - +
99F ASP* 3.5 3.9 - - - +
100F GLY* 2.9 24.3 + - - -
101F THR* 2.9 16.8 + - - +
103F VAL* 3.5 24.5 - - + -
123F ALA* 1.3 75.2 - - - +
125F LYS* 1.3 60.9 + - - +
127F GLN* 3.4 31.6 - - - -
128F VAL 3.5 9.4 - - - -
129F ALA* 4.0 1.6 - - + -
152F VAL* 4.3 4.5 - - + -
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Residues in contact with LYS 125 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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99F ASP* 3.6 17.1 + - + +
123F ALA 4.9 2.0 - - - +
124F MET* 1.3 77.3 - - - +
126F ASN* 1.3 91.8 + - - +
127F GLN 3.2 0.4 - - - +
128F VAL* 3.0 24.2 + - - +
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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