Contacts of the strand formed by residues 141 - 145 (chain I) in PDB entry 4ZZ7
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 VAL 141 (chain I).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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46I ILE* 4.2 10.1 - - + +
49I ALA* 3.9 20.9 - - + +
50I GLN* 3.3 52.1 + - + +
53I PHE* 5.3 0.9 - - + -
140I GLY* 1.3 73.5 - - - -
142I VAL* 1.3 66.4 + - - +
168I CYS* 3.5 4.7 - - + +
170I VAL* 4.1 17.7 - - + -
216I ARG 3.5 15.5 + - - +
217I VAL* 3.7 17.3 - - + -
218I LYS* 3.0 28.7 + - - +
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Residues in contact with VAL 142 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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139I MET* 4.4 7.2 - - + -
140I GLY 4.2 0.4 - - - +
141I VAL* 1.3 81.4 - - - +
143I ALA* 1.3 65.5 + - - +
167I ASN* 3.7 34.3 - - + +
168I CYS 2.9 11.8 + - - +
169I PHE* 3.4 22.1 - - + -
170I VAL* 2.8 28.0 + - - +
219I ALA* 3.6 25.1 - - + +
471I TYR* 3.8 32.3 - - + -
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Residues in contact with ALA 143 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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142I VAL* 1.3 80.8 - - - +
144I GLY* 1.3 58.3 + - - +
145I ILE* 5.4 0.2 - - + -
170I VAL* 3.4 5.8 - - - +
211I LEU* 4.0 32.1 - - + -
217I VAL* 3.8 22.5 - - + +
219I ALA 2.8 11.6 + - - +
220I VAL* 3.3 13.4 - - + -
221I SER* 2.9 25.1 + - - -
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Residues in contact with GLY 144 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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143I ALA* 1.3 72.6 - - - +
145I ILE* 1.3 62.7 + - - +
158I MET* 3.7 7.6 - - - -
169I PHE* 3.6 23.1 - - - -
170I VAL 3.0 8.6 + - - +
171I LEU* 3.5 7.0 - - - +
172I LYS* 2.8 31.9 + - - +
211I LEU* 4.8 0.5 - - - +
221I SER 3.4 5.4 - - - -
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Residues in contact with ILE 145 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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143I ALA 5.3 0.2 - - - -
144I GLY* 1.3 79.7 - - - +
146I THR* 1.3 64.3 + - - +
158I MET* 3.4 7.7 - - - +
172I LYS* 3.5 12.1 - - + +
208I VAL* 3.8 35.2 - - + +
211I LEU* 4.5 17.7 - - + -
212I LEU* 4.8 3.4 - - + -
220I VAL* 3.9 25.1 - - + -
221I SER 2.8 10.7 + - - +
222I PHE* 3.5 27.8 - - + -
223I VAL 3.2 25.1 + - - +
232I ILE* 4.4 4.9 - - + -
501I NAD 3.6 22.2 - - - +
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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