Contacts of the strand formed by residues 114 - 118 (chain D) in PDB entry 6IAP
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 SER 114 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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112D ALA 4.8 1.7 + - - -
113D PRO* 1.3 70.2 - - - +
115D VAL* 1.3 61.8 + - - +
116D PHE* 3.8 26.6 - - - -
135D LEU 3.3 4.0 - - - +
137D ASN* 2.7 44.6 + - - +
138D ASN* 5.2 0.9 + - - +
136E SER* 5.2 6.5 - - - -
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Residues in contact with VAL 115 (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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113D PRO* 3.6 12.1 + - + +
114D SER* 1.3 74.6 - - - +
116D PHE* 1.3 70.1 + - - +
134D CYS* 4.0 15.7 - - - -
135D LEU 3.3 5.2 - - - +
136D LEU* 4.5 4.5 - - + -
194D CYS* 4.1 1.1 - - - +
196D VAL* 3.9 40.8 - - + -
205D VAL* 3.9 28.9 - - + -
207D LYS* 3.3 41.6 - - + +
136E SER* 5.1 2.6 + - - -
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Residues in contact with PHE 116 (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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114D SER* 3.8 33.9 - - - -
115D VAL* 1.3 81.0 - - - +
117D ILE* 1.3 60.6 + - - +
118D PHE* 4.2 14.4 - - + -
133D VAL 3.7 0.7 - - - +
134D CYS* 3.6 3.6 - - - -
135D LEU* 2.8 56.4 + - + +
137D ASN* 4.0 16.2 - - + -
207D LYS* 4.3 4.3 - - - -
133E LYS 3.8 4.9 - - - -
134E SER* 3.5 38.6 - - - -
135E THR 4.0 1.1 - - - -
136E SER* 3.6 33.9 - - - -
139E THR* 5.0 4.3 - - - -
141E ALA* 4.1 10.8 - - + -
187E THR* 4.4 8.5 - - + -
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Residues in contact with ILE 117 (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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116D PHE* 1.3 74.4 - - - +
118D PHE* 1.3 68.8 + - - +
119D PRO* 4.2 2.8 - - + +
132D VAL* 4.1 3.8 - - + -
133D VAL 3.4 8.3 - - - +
148D TRP* 3.5 31.6 - - + -
192D TYR 3.8 14.1 - - - +
194D CYS* 3.9 6.7 - - - -
207D LYS* 3.4 40.1 - - + +
208D SER 4.0 17.3 - - - +
209D PHE* 3.9 21.5 - - + -
131E SER* 4.1 8.1 + - - -
133E LYS* 3.1 34.7 + - + +
134E SER* 4.2 0.9 - - - -
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Residues in contact with PHE 118 (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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116D PHE* 4.2 8.5 - - + -
117D ILE* 1.3 77.6 - - - +
119D PRO* 1.3 67.9 - - + +
131D SER 4.3 0.7 - - - +
132D VAL* 3.4 7.3 - - - +
133D VAL* 2.8 50.5 + - + +
135D LEU* 4.1 26.9 - - + -
128E LEU* 3.3 52.2 - - + +
129E ALA 3.4 12.3 - - - -
131E SER* 5.8 0.2 - - - -
134E SER* 3.2 29.8 - - - -
141E ALA* 3.7 24.5 - - + -
142E LEU* 4.1 4.7 - - - -
185E VAL* 4.6 8.5 - - + -
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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