Contacts of the strand formed by residues 127 - 131 (chain D) in PDB entry 6D6U
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 LEU 127 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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69D SER* 2.9 29.5 + - - -
70D TRP* 3.2 44.2 + - + +
72D ASP* 4.3 7.9 - - + +
75D LEU* 3.7 27.4 - - + -
94D ILE* 3.5 32.8 - - + -
119D LEU* 4.2 4.9 - - + -
120D ARG 3.3 10.3 - - - +
121D ILE* 4.2 15.7 - - + -
125D GLY 3.2 24.5 - - - +
126D THR* 1.3 78.4 - - - +
128D LEU* 1.3 63.6 + - - +
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Residues in contact with LEU 128 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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202C THR* 4.1 22.7 - - + -
67D ARG* 4.9 13.2 - - + -
68D GLN 3.3 23.8 - - - +
69D SER* 4.4 7.9 - - - +
118D LEU* 3.5 8.2 - - + +
119D LEU* 3.4 12.2 - - - +
120D ARG* 3.0 62.4 + - + +
127D LEU* 1.3 76.6 - - - +
129D TYR* 1.3 64.7 + - - +
130D THR* 4.6 6.3 - - + -
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Residues in contact with TYR 129 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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66D PHE 3.8 1.5 - - - +
67D ARG 3.6 0.2 - - - -
68D GLN* 2.8 57.9 + - - +
70D TRP* 3.9 26.9 - + + -
91D ALA* 3.7 30.2 + - + +
96D THR* 4.4 24.5 - - + +
97D PRO 5.8 1.6 - - - -
117D LYS* 3.3 41.3 + - + +
118D LEU 3.6 9.9 - - - -
119D LEU* 4.4 10.1 - - + -
128D LEU* 1.3 78.2 - - - +
130D THR* 1.3 61.9 + - - +
131D MET* 4.3 22.1 - - + -
125E THR* 5.6 6.5 + - + +
126E THR* 6.0 1.9 - - - +
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Residues in contact with THR 130 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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157C TYR* 2.8 20.0 + - - +
405C ABU 4.2 15.3 + - - +
65D PHE* 4.6 2.3 - - - +
66D PHE 3.3 10.9 + - - -
67D ARG* 4.1 16.9 - - + +
117D LYS* 3.4 25.9 - - - +
118D LEU* 3.4 43.4 + - + -
128D LEU* 4.6 7.9 - - + -
129D TYR* 1.3 80.8 - - - +
131D MET* 1.3 67.5 + - - +
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Residues in contact with MET 131 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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157C TYR* 3.2 13.2 + - - -
65D PHE* 3.3 22.2 - - - -
66D PHE* 3.4 18.4 + - + +
109D ALA* 4.0 15.7 - - + -
116D ASN 3.6 6.5 - - - +
117D LYS* 3.7 35.2 - - + -
129D TYR* 4.3 17.3 - - + -
130D THR* 1.3 77.8 - - - +
132D ARG* 1.3 60.5 + - - +
133D LEU* 3.7 32.5 - - + -
125E THR* 4.1 41.7 - - - +
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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