Contacts of the strand formed by residues 81 - 84 (chain Z) in PDB entry 1SGF
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 GLN 81 (chain Z).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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67Z TRP* 3.2 11.5 - - - -
68Z LEU* 3.0 36.8 + - + +
79Z SER 4.2 5.0 + - - +
80Z ALA* 1.3 78.1 - - - +
82Z HIS* 1.3 63.3 + - - +
83Z ARG* 3.8 18.8 + - - +
112Z ALA* 3.8 10.9 - - - +
113Z ASP* 2.8 53.7 + - + +
115Z THR* 3.4 8.1 + - - +
118Z VAL* 3.3 27.5 - - - +
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Residues in contact with HIS 82 (chain Z).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
74G PHE* 4.0 32.5 + - + +
75G LYS* 4.8 18.4 - - + +
153G ASP* 5.5 3.6 - - - -
65Z LYS* 4.8 8.6 - - + +
66Z VAL 3.4 10.1 - - - +
67Z TRP* 3.8 18.4 - - + +
68Z LEU 4.6 0.2 - - - +
81Z GLN* 1.3 79.0 - - - +
83Z ARG* 1.3 77.2 + - - +
84Z PHE* 4.1 29.5 - + - -
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Residues in contact with ARG 83 (chain Z).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
65Z LYS* 3.7 6.9 - - - +
66Z VAL* 2.9 31.2 + - - +
68Z LEU* 3.8 21.3 - - + +
81Z GLN* 3.8 18.0 + - - +
82Z HIS* 1.3 86.2 + - - +
84Z PHE* 1.3 76.7 - - - +
108Z LEU* 4.2 17.0 - - + -
110Z LYS* 3.1 57.6 + - + +
111Z PRO 3.2 25.8 + - - -
112Z ALA* 4.1 2.0 - - - +
113Z ASP* 3.5 29.5 - - - +
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Residues in contact with PHE 84 (chain Z).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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153G ASP* 5.0 5.2 - - - -
63Z ASN* 5.9 2.5 - - - -
64Z TYR 4.2 5.2 - - - +
65Z LYS* 4.0 29.8 - - + -
82Z HIS* 4.1 29.2 - + - -
83Z ARG* 1.3 79.1 - - - +
85Z VAL* 1.3 69.3 + - - +
108Z LEU* 3.3 9.0 - - - +
109Z SER* 2.9 36.6 + - - -
110Z LYS* 6.0 2.9 - - + +
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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
------------------------------------------------------------
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