Contacts of the strand formed by residues 47 - 50 (chain I) in PDB entry 1N13
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 ASN 47 (chain I).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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46I VAL* 1.3 71.4 - - - +
48I LEU* 1.3 63.1 + - - +
70J GLY* 3.0 24.0 + - - -
71J ALA 2.7 13.2 + - - +
72J LEU* 3.6 17.1 - - + +
73J VAL* 2.8 31.2 + - - +
51K ILE* 3.4 16.3 - - + +
52K SER* 4.0 2.7 - - - -
53L PYR 3.0 15.6 - - - +
54L ILE* 2.7 49.3 + - - +
56L PRO* 4.7 0.4 - - - +
162L LEU* 3.9 10.5 - - - +
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Residues in contact with LEU 48 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
34I PHE* 4.9 0.7 - - + -
38I LEU* 3.6 27.8 - - + -
43I ILE* 3.6 32.5 - - + +
46I VAL* 4.1 6.3 - - + +
47I ASN* 1.3 76.4 - - - +
49I ILE* 1.3 62.6 + - - +
50I ARG 3.6 1.1 + - - -
73J VAL* 3.6 2.7 - - + +
75J THR* 3.4 20.6 - - + +
77J TYR* 4.0 22.9 - - + -
157J PHE* 3.9 23.1 - - + -
50K ARG 4.0 0.2 - - - +
51K ILE* 3.4 5.4 - - - -
52K SER* 2.9 55.4 + - - +
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Residues in contact with ILE 49 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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49G ILE* 3.9 37.0 - - + -
7I PRO* 5.5 2.2 - - + -
8I LEU* 4.3 15.0 - - + -
47I ASN 5.0 0.2 - - - +
48I LEU* 1.3 70.8 - - - +
50I ARG* 1.3 63.8 + - - +
51I ILE* 3.2 1.6 + - - +
72J LEU* 4.2 31.9 - - + -
73J VAL 2.9 16.6 + - - +
74J PRO* 3.4 9.4 - - + +
75J THR 2.9 22.7 + - - -
49K ILE* 3.9 20.0 - - + -
50K ARG 4.3 3.4 - - - +
51K ILE* 3.4 33.0 - - + -
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Residues in contact with ARG 50 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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48G LEU 4.1 5.0 - - - +
49G ILE* 4.4 8.7 - - - +
50G ARG* 4.7 4.2 + - - +
7003H MRD 6.2 2.6 - - - +
48I LEU 3.6 5.7 + - - -
49I ILE* 1.3 73.5 - - - +
51I ILE* 1.3 72.2 + - - +
52I SER* 5.1 3.0 + - - -
75J THR 3.2 8.1 - - - +
77J TYR* 2.8 71.8 + - + +
78J GLY* 4.4 3.6 - - - -
79J TYR* 3.9 24.5 + - - -
109J GLU* 4.7 8.5 + - - +
111J GLU* 5.2 2.8 + - - -
7004J MRD 5.3 2.0 - - - +
50K ARG 4.5 5.5 + - - +
52K SER* 4.8 1.5 + - - +
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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