Contacts of the strand formed by residues 73 - 77 (chain A) in PDB entry 3NJ4
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 GLU 73 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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48A ALA 2.8 14.6 + - - +
49A ARG* 3.3 22.9 - - + +
50A ILE 2.7 32.9 + - - +
72A ALA* 1.3 73.0 - - - +
74A VAL* 1.3 58.1 + - - +
120A PHE* 3.6 16.2 - - + +
121A LYS* 5.3 10.3 - - - -
122A ASP* 2.6 31.7 + - - +
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Residues in contact with VAL 74 (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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50A ILE* 3.0 33.9 - - + +
64A ILE* 3.6 31.9 - - + +
67A LEU* 4.2 21.5 - - + -
68A VAL* 3.9 16.5 - - + +
72A ALA* 4.1 2.2 + - + -
73A GLU* 1.3 85.3 - - - +
75A GLN* 1.3 63.1 + - - +
76A TRP* 4.4 9.9 - - + -
97A ILE* 3.2 21.0 - - + +
98A PRO* 3.8 8.5 - - - +
120A PHE* 3.8 1.1 - - - -
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Residues in contact with GLN 75 (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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4A LYS* 4.7 2.3 + - - -
50A ILE 3.1 4.4 + - - -
51A ALA* 3.4 4.5 - - - -
52A GLY 3.2 20.6 + - - -
74A VAL* 1.3 74.5 - - - +
76A TRP* 1.3 61.1 + - - +
98A PRO* 3.3 34.0 - - + +
100A TYR* 5.3 0.5 + - - -
116A GLN 4.3 5.2 - - - +
117A THR* 2.7 56.4 + - + +
119A TYR 3.0 24.1 + - - +
120A PHE* 3.4 36.7 - - + -
121A LYS* 4.7 0.7 + - - +
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Residues in contact with TRP 76 (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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50A ILE* 4.9 1.3 - - + -
52A GLY* 3.2 32.3 - - - -
54A LEU* 3.0 44.7 + - + +
56A MET* 4.4 9.9 - - + -
60A THR* 3.7 15.4 - - + +
63A LEU* 4.0 13.2 - - + -
64A ILE* 3.6 32.3 - - + -
67A LEU* 4.0 17.9 - - + -
74A VAL* 4.2 15.4 + - + -
75A GLN* 1.3 73.9 - - - +
77A SER* 1.3 84.8 + - - +
97A ILE* 5.4 0.6 - - + +
98A PRO 2.7 11.5 + - - -
99A VAL* 3.3 20.7 - - + -
100A TYR 2.9 25.3 + - - -
117A THR* 3.5 7.7 - - - +
129A LEU* 3.5 29.2 - - + -
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Residues in contact with SER 77 (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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52A GLY 3.0 8.8 + - - -
53A CYS* 3.2 9.4 - - - +
54A LEU 2.9 22.7 + - - -
56A MET* 5.2 0.4 - - - -
76A TRP* 1.3 85.7 - - - +
78A SER* 1.3 60.1 + - - +
100A TYR 3.6 12.6 - - - -
101A ALA* 4.5 2.2 - - - -
113A CYS* 3.6 28.0 - - - -
114A ILE* 3.7 22.3 - - - +
117A THR* 3.9 7.2 + - - +
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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