Contacts of the strand formed by residues 85 - 88 (chain Y) in PDB entry 6MGP
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 85 (chain Y).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
66Y ARG* 4.8 6.5 - - - +
68Y CYS* 3.9 3.5 - - - -
74Y THR* 3.7 2.4 - - - -
75Y ARG* 2.8 64.8 + - - +
76Y LYS* 2.9 30.4 + - + +
83Y ASN 4.5 5.8 - - - +
84Y ALA* 1.3 80.7 - - - +
86Y CYS* 1.3 53.7 + - - +
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Residues in contact with CYS 86 (chain Y).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
66Y ARG* 3.8 26.5 - - - +
67Y GLN 3.9 3.6 - - - -
68Y CYS* 2.0 49.8 - - + -
72Y PHE* 4.1 22.4 - - + -
73Y ARG 3.2 7.2 - - - +
75Y ARG* 3.2 22.6 + - - -
85Y GLU* 1.3 74.5 - - - +
87Y ASP* 1.3 60.8 + - - +
98Y GLY 5.0 4.4 + - - +
99Y CYS* 3.5 20.8 - - + +
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Residues in contact with ASP 87 (chain Y).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
72Y PHE* 3.3 8.3 - - - -
73Y ARG* 2.6 75.7 + - - +
74Y THR 4.2 0.3 - - - +
75Y ARG* 3.8 31.2 + - - +
86Y CYS* 1.3 75.3 - - - +
88Y CYS* 1.3 64.6 + - - +
94Y CYS* 3.6 15.0 - - - -
99Y CYS* 4.0 2.0 - - - -
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Residues in contact with CYS 88 (chain Y).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
71Y VAL 3.7 0.7 - - - -
73Y ARG* 3.5 21.0 + - - -
87Y ASP* 1.3 77.7 - - - +
89Y THR* 1.3 65.1 + - - +
90Y PRO 3.7 0.3 - - - -
92Y PHE* 3.8 25.7 - - + +
93Y HIS* 3.3 22.7 - - - +
94Y CYS* 3.4 15.0 - - - +
99Y CYS* 3.7 2.2 - - - -
102Y CYS* 2.0 50.9 - - - -
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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