Contacts of the strand formed by residues 45 - 49 (chain O) in PDB entry 2JA7
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 ALA 45 (chain O).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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44O LEU* 1.3 80.3 - - - +
46O ILE* 1.3 65.1 + - - +
47O ASP* 3.3 3.3 + - - +
68O GLY 3.8 17.9 - - - +
70O ILE 5.2 0.7 - - - +
71O PRO* 6.2 1.1 - - + -
72O LEU* 3.3 14.1 - - + +
159O ALA* 3.8 3.6 - - - -
160O LYS 3.1 27.3 + - - +
169O LYS* 3.9 18.2 - - - +
170O TRP* 3.6 19.8 + - + +
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Residues in contact with ILE 46 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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45O ALA* 1.3 72.0 - - - +
47O ASP* 1.3 52.7 + - - +
48O SER 4.0 8.1 - - - +
49O VAL* 4.1 13.5 - - + -
67O LEU* 3.2 35.2 - - + +
68O GLY* 3.7 6.8 + - - -
70O ILE* 5.1 1.3 - - + -
72O LEU* 3.3 22.1 - - + +
99O LEU* 5.1 3.6 - - + -
118O LEU* 4.6 19.3 - - + -
157O CYS* 3.5 46.4 - - + -
158O VAL 3.7 5.8 - - - +
159O ALA* 4.0 3.6 - - + +
169O LYS* 2.6 26.0 + - - -
69X ALA* 3.0 6.9 - - + +
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Residues in contact with ASP 47 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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45O ALA 3.3 3.5 + - - +
46O ILE* 1.3 74.1 - - - +
48O SER* 1.3 65.6 + - - +
158O VAL 2.8 10.1 + - - +
160O LYS* 4.1 28.3 + - + +
169O LYS* 2.8 20.5 + - - +
170O TRP* 3.3 22.7 - - + -
67X PHE 4.7 1.2 - - - +
68X GLU* 5.2 0.5 - - - -
69X ALA* 2.9 16.1 + - - +
70X ARG* 3.0 31.4 + - - -
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Residues in contact with SER 48 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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46O ILE 3.7 0.6 - - - -
47O ASP* 1.3 83.7 + - - +
49O VAL* 1.3 62.5 + - - +
50O GLU* 5.4 3.2 + - - +
156O THR 3.5 1.9 - - - +
157O CYS* 3.1 6.3 - - - -
158O VAL* 3.0 48.7 + - - +
160O LYS* 5.0 7.6 + - - -
66X GLN* 4.1 23.7 + - - +
67X PHE 3.9 8.7 + - - -
69X ALA* 3.4 3.8 - - - +
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Residues in contact with VAL 49 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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46O ILE* 4.1 13.7 - - + -
48O SER* 1.3 78.5 - - - +
50O GLU* 1.3 64.8 + - - +
51O VAL* 3.6 26.7 + - + +
63O ILE* 6.1 0.2 - - + -
64O ALA* 4.0 28.0 - - + +
67O LEU* 3.7 20.6 - - + -
155O LEU* 4.0 24.5 - - + -
156O THR 3.7 3.4 - - - +
157O CYS* 4.3 1.6 - - - +
66X GLN* 3.7 3.4 - - - +
67X PHE* 2.8 35.8 + - + +
69X ALA* 4.9 5.2 - - + -
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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