Contacts of the strand formed by residues 118 - 121 (chain A) in PDB entry 4TMU
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 118 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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57A TYR* 4.4 3.1 - - + -
58A GLN* 4.1 24.0 - - + +
61A ALA* 3.9 24.9 - - + -
62A LEU* 4.5 8.5 - - + -
68A THR* 3.3 7.0 - - + +
70A VAL* 4.2 19.3 - - + -
85A LEU* 4.4 7.9 - - + -
90A VAL* 3.6 31.2 - - + -
91A ALA 3.3 3.6 + - - +
92A ALA* 3.3 4.9 - - + +
93A ALA 2.9 27.3 + - - +
116A VAL* 3.2 6.2 - - - +
117A ARG* 1.3 90.2 - - + +
119A LEU* 1.3 59.9 + - - +
120A TYR* 4.1 16.2 - - + +
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Residues in contact with LEU 119 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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67A LEU* 4.0 15.7 - - + +
68A THR 3.0 8.8 + - - +
69A ILE* 3.5 14.5 - - + +
70A VAL 2.8 26.2 + - - +
93A ALA* 3.3 10.1 - - + +
94A CYS* 4.1 2.2 - - - -
95A LEU* 3.9 20.9 - - + -
107A VAL* 3.7 28.9 - - + -
111A CYS* 3.9 19.7 - - - -
116A VAL* 4.4 0.4 - - + -
118A LEU* 1.3 73.8 - - - +
120A TYR* 1.3 73.9 + - - +
121A ILE* 3.9 8.8 + - + -
131A PHE* 4.7 7.0 - - + -
138A TRP* 4.0 18.2 - - + -
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Residues in contact with TYR 120 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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57A TYR* 3.0 25.6 + - - -
58A GLN* 3.1 22.2 + - - +
70A VAL* 3.3 28.7 - - + -
72A SER* 3.4 18.6 - - - -
78A MET* 3.5 26.7 - - + -
81A GLN* 3.4 24.9 + - + +
82A VAL* 3.7 19.7 - - + -
85A LEU* 3.7 19.6 - - + +
92A ALA* 4.9 0.2 - - + -
93A ALA 2.7 15.8 + - - +
94A CYS* 3.1 9.0 - - + +
95A LEU 3.0 26.5 + - - +
118A LEU* 4.1 16.4 - - + -
119A LEU* 1.3 74.5 - - - +
121A ILE* 1.3 63.2 + - - +
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Residues in contact with ILE 121 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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69A ILE* 3.7 29.8 - - + -
70A VAL 3.0 9.3 + - - +
71A VAL* 3.2 4.7 - - - -
72A SER 3.0 22.8 + - - -
78A MET* 4.1 10.9 - - - +
95A LEU* 4.2 10.1 - - + +
119A LEU* 4.7 7.6 - - + -
120A TYR* 1.3 76.6 - - - +
122A ALA* 1.3 66.8 + - - +
125A ARG* 3.8 31.2 - - + -
126A LEU* 3.8 24.0 - - + +
131A PHE* 3.7 36.1 - - + -
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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