Contacts of the strand formed by residues 151 - 155 (chain A) in PDB entry 1GPU
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 THR 151 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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62A ARG* 3.7 8.7 - - + +
64A VAL* 5.2 0.9 - - + -
125A ALA* 3.5 39.5 - - + +
128A MET* 4.0 19.6 - - + +
129A ALA* 3.7 21.9 + - - +
132A GLN* 5.1 1.0 - - - +
149A ASN* 4.1 9.0 + - - -
150A TYR* 1.3 74.8 + - - +
152A TYR* 1.3 63.8 + - - +
153A VAL* 4.7 0.7 - - + -
179A ASN* 2.9 11.8 + - - +
180A LEU* 3.5 12.6 - - + +
181A ILE* 2.9 28.2 + - - +
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Residues in contact with TYR 152 (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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44A LEU* 3.4 33.9 - - + -
47A GLN* 3.2 13.3 + - - -
48A MET* 3.7 34.1 - - + -
61A ASP* 4.2 11.0 + - + -
62A ARG 2.7 19.4 + - - +
63A PHE* 3.3 6.7 - - + -
64A VAL* 2.8 26.4 + - - +
150A TYR* 3.8 21.6 - - + +
151A THR* 1.3 72.3 - - - +
153A VAL* 1.3 67.3 + - - +
181A ILE* 3.2 39.5 - - + +
183A ILE* 6.1 1.6 - - + -
231A ILE* 4.2 7.0 - - + -
235A LYS* 3.0 32.1 + - - -
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Residues in contact with VAL 153 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
63A PHE* 5.2 0.2 - - - -
64A VAL* 3.3 16.2 - - + +
66A SER* 4.0 6.5 - - - -
122A ILE* 4.0 35.7 - - + +
125A ALA* 3.0 33.0 - - + -
151A THR* 4.6 0.4 - - + +
152A TYR* 1.3 81.5 - - - +
154A PHE* 1.3 76.4 + - - +
155A LEU* 4.7 2.2 - - + +
180A LEU* 4.1 13.5 - - + -
181A ILE 2.9 9.0 + - - +
182A ALA* 3.3 3.0 - - + +
183A ILE* 2.7 33.1 + - - +
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Residues in contact with PHE 154 (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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37A MET* 3.4 38.6 - - + -
40A ALA* 3.8 12.3 - - + -
41A ALA* 3.7 38.4 - - + -
44A LEU* 3.6 21.3 - - + -
63A PHE* 3.6 26.9 - + + -
64A VAL 2.9 8.4 + - - +
65A LEU* 4.0 12.8 - - + -
66A SER* 2.8 31.0 + - - -
67A ASN* 3.1 13.5 + - - +
73A LEU* 4.3 4.7 - - + -
153A VAL* 1.3 79.0 - - - +
155A LEU* 1.3 60.0 + - - +
183A ILE* 3.5 25.1 - - + -
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Residues in contact with LEU 155 (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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37A MET* 4.7 0.6 - - - +
66A SER* 3.8 15.3 - - - -
67A ASN* 3.8 11.8 - - - +
122A ILE* 4.2 22.7 - - + -
153A VAL* 4.4 2.9 - - + +
154A PHE* 1.3 77.4 - - - +
156A GLY* 1.3 61.3 + - - +
159A CYS* 4.0 16.6 - - + -
160A LEU* 3.8 26.9 - - + -
165A SER* 5.7 0.7 - - - -
182A ALA* 4.0 20.2 - - + -
183A ILE 3.1 28.1 + - - +
184A TYR* 3.4 11.6 - - + +
185A ASP* 2.8 27.2 + - - +
207A TYR* 4.9 3.1 - - - +
243A LEU* 4.4 3.8 - - + -
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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