Contacts of the strand formed by residues 125 - 129 (chain C) in PDB entry 3LBF
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 VAL 125 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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90C THR* 3.7 30.7 - - + -
94C ALA* 3.9 26.2 - - + -
99C HIS* 4.2 1.1 - - - -
100C VAL* 3.4 14.1 - - + +
102C SER* 4.7 1.1 - - - -
117C LEU* 4.1 18.8 - - + -
122C LEU* 4.8 7.2 + - + +
123C HIS 3.4 6.1 + - - +
124C ASN* 1.3 85.3 - - - +
126C SER* 1.3 67.0 + - - +
127C THR* 4.0 22.5 + - + +
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Residues in contact with SER 126 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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99C HIS* 2.7 32.7 + - - -
100C VAL 2.8 10.0 + - - +
101C CYS* 3.3 3.6 - - - -
102C SER 2.8 26.5 + - - -
125C VAL* 1.3 72.3 - - - +
127C THR* 1.3 62.9 + - - +
136C TRP* 3.6 11.3 - - - -
139C ARG* 3.5 25.4 + - - -
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Residues in contact with THR 127 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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84C THR* 4.8 9.9 - - + -
102C SER* 3.2 13.5 - - - +
110C GLN* 2.9 33.5 + - + +
114C ARG* 3.7 32.2 + - + +
117C LEU* 4.5 13.0 - - + -
125C VAL* 4.0 19.9 + - + +
126C SER* 1.3 77.5 - - - +
128C ARG* 1.3 62.0 + - - +
136C TRP* 4.0 6.1 - - - -
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Residues in contact with ARG 128 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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102C SER 2.9 7.7 + - - +
103C VAL* 3.5 10.4 - - + +
104C GLU* 3.0 26.3 + - - +
110C GLN* 4.0 8.8 - - - +
127C THR* 1.3 75.3 - - - +
129C HIS* 1.3 74.7 + - - +
130C GLY* 4.0 15.8 - - - +
131C ASP 4.9 4.6 + - - +
134C GLN* 6.1 2.8 - - - +
135C GLY 4.5 8.5 + - - -
136C TRP* 3.5 60.0 - - + +
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Residues in contact with HIS 129 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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104C GLU 3.3 13.4 + - - -
105C ARG 2.9 16.6 + - - -
106C ILE 4.0 0.2 - - - -
107C LYS* 3.3 29.3 + - + +
110C GLN* 3.4 20.7 + - - +
128C ARG* 1.3 80.9 + - - +
130C GLY* 1.3 57.8 + - - +
207C LEU* 3.7 30.9 - - + +
208C ALA 2.8 29.9 + - - -
209C PO4 2.8 41.9 + - - +
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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