Contacts of the helix formed by residues 122 - 127 (chain A) in PDB entry 2JJ7
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 PHE 122 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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59A PHE* 4.1 19.5 - - + -
63A GLY* 5.0 2.5 - - - -
64A LEU* 3.9 12.4 - - + +
90A PHE* 3.6 31.8 - + - -
93A HIS* 5.1 8.5 - + + -
94A ILE* 3.6 21.8 - - + -
100A ILE* 3.6 19.1 - - + -
104A ALA* 3.5 29.4 - - + -
118A ILE 3.8 1.4 + - - -
119A LYS 3.1 2.4 + - - -
120A PRO 3.2 1.6 - - - -
121A TYR* 1.3 82.1 - - - +
123A ILE* 1.3 73.2 + - + +
124A GLY 3.3 2.3 + - - -
125A SER* 3.4 5.0 + - - -
126A PHE* 3.0 39.5 + + + +
159A LEU* 3.6 24.9 - - + -
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Residues in contact with ILE 123 (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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59A PHE* 5.3 1.8 - - + -
104A ALA* 4.0 16.6 - - + +
107A GLU* 3.8 29.2 - - + -
108A ILE* 3.8 33.9 - - + +
115A LEU* 4.0 21.1 - - + -
118A ILE* 4.3 13.0 + - + +
119A LYS* 3.1 18.8 + - + +
122A PHE* 1.3 80.8 - - + +
124A GLY* 1.3 63.7 + - - +
126A PHE* 3.2 6.9 + - - +
127A GLU* 2.9 47.4 + - + +
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Residues in contact with GLY 124 (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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67A GLU* 4.1 15.0 - - - -
119A LYS* 2.9 36.3 + - - +
123A ILE* 1.3 77.2 - - - +
125A SER* 1.3 60.1 + - - +
127A GLU* 3.4 14.6 + - - +
128A GLN* 4.2 4.2 + - - +
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Residues in contact with SER 125 (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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64A LEU* 3.6 24.9 - - - +
67A GLU* 3.8 13.3 + - - +
68A LEU* 2.9 45.7 + - - -
71A PHE* 5.2 0.2 - - - -
86A TYR* 3.9 5.0 - - - -
90A PHE* 3.7 3.5 - - - -
119A LYS 4.9 0.2 + - - -
120A PRO 4.9 1.5 + - - -
122A PHE 3.4 2.6 + - - -
124A GLY* 1.3 71.7 - - - +
126A PHE* 1.3 66.5 + - - +
128A GLN* 3.1 30.9 + - - +
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Residues in contact with PHE 126 (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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86A TYR* 2.6 46.1 + + - -
90A PHE* 3.3 29.3 - + + -
108A ILE* 4.0 15.7 - - + -
122A PHE* 3.0 35.8 + + + +
123A ILE* 3.2 11.4 + - - +
125A SER* 1.3 76.4 - - - +
127A GLU* 1.3 61.4 + - + +
128A GLN 3.2 1.6 + - - -
129A LEU* 3.4 11.4 + - + +
151A ILE* 6.2 0.2 - - + -
154A ILE* 5.2 0.7 - - + -
155A THR* 3.5 40.2 - - + -
158A VAL* 4.1 13.9 - - + -
159A LEU* 3.8 28.0 - - + -
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Residues in contact with GLU 127 (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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108A ILE* 5.8 1.6 - - + +
115A LEU* 5.9 1.6 - - - +
119A LYS* 3.6 25.6 + - - -
123A ILE* 2.9 38.0 + - + +
124A GLY 3.7 7.9 - - - +
125A SER 3.1 1.2 - - - -
126A PHE* 1.3 75.7 - - + +
128A GLN* 1.3 58.8 + - - +
129A LEU* 3.0 7.5 + - - -
130A LYS* 3.7 14.3 + - - +
131A GLU* 4.7 0.5 + - - +
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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