Contacts of the strand formed by residues 103 - 107 (chain A) in PDB entry 2FQ6
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 HIS 103 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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102A ASP* 1.3 74.4 - - - +
104A VAL* 1.3 80.5 + - - +
105A LEU* 4.0 10.3 - - + -
128A THR* 3.3 26.9 - - - +
129A THR 4.3 0.7 - - - -
130A SER* 3.0 31.6 + - - -
143A HIS 3.8 12.6 - - - -
145A GLN* 3.5 26.9 + - - +
147A ASN* 2.9 33.0 + - - +
148A THR* 2.8 26.4 + - - +
149A LYS* 3.0 25.1 + - - +
150A ILE 3.6 4.0 + - - +
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Residues in contact with VAL 104 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
94A ILE* 4.5 5.2 - - + -
98A ILE* 3.9 17.3 - - + -
103A HIS* 1.3 82.9 + - - +
105A LEU* 1.3 69.2 + - - +
106A MET* 4.0 8.5 - - + -
118A CYS* 4.3 19.7 - - - -
122A LEU* 4.0 10.5 - - + -
127A VAL* 3.9 21.1 - - + -
128A THR 2.6 9.5 + - - -
129A THR* 3.1 15.4 - - + +
130A SER 2.9 27.4 + - - +
150A ILE* 3.7 27.8 - - + -
152A PHE* 4.9 0.2 - - + -
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Residues in contact with LEU 105 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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103A HIS* 4.0 8.4 + - + -
104A VAL* 1.3 73.6 - - - +
106A MET* 1.3 53.4 + - - +
130A SER* 3.5 31.4 - - - +
131A TRP 4.0 5.2 - - - +
132A PHE* 3.7 19.5 - - + -
140A ILE* 3.7 26.5 - - + -
143A HIS* 3.7 36.1 - - + +
144A LEU* 3.8 20.4 - - + -
148A THR* 4.2 6.1 - - + -
150A ILE 2.9 15.1 + - - +
151A VAL* 3.3 7.0 - - + -
152A PHE* 2.7 31.5 + - - +
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Residues in contact with MET 106 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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94A ILE* 4.0 12.3 - - + -
104A VAL* 4.5 2.7 - - + -
105A LEU* 1.3 75.8 - - - +
107A THR* 1.3 76.2 + - - +
110A ALA* 3.6 20.2 - - + -
114A SER* 4.0 8.1 - - - +
115A GLN* 4.0 12.1 - - - -
118A CYS* 3.5 23.1 - - - -
129A THR* 4.4 5.6 - - + -
130A SER 3.0 7.7 + - - +
131A TRP* 3.1 54.0 - - + +
132A PHE* 3.2 6.9 + - - -
152A PHE* 3.6 39.3 - - + -
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Residues in contact with THR 107 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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106A MET* 1.3 75.8 - - - +
108A ASN* 1.3 63.7 + - - +
109A THR* 2.8 25.6 + - - +
110A ALA* 3.2 35.7 + - + +
131A TRP* 3.9 2.4 - - - -
132A PHE* 3.1 20.8 + - - -
134A PRO* 3.7 5.0 - - - +
152A PHE* 3.1 11.4 + - + +
153A LEU 4.0 0.2 - - - -
154A GLU* 3.6 33.4 - - + +
164A HIS* 3.4 23.8 - - - +
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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