Contacts of the strand formed by residues 138 - 142 (chain A) in PDB entry 4LML
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 ASN 138 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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15A LEU* 3.4 17.2 - - - +
17A VAL* 4.5 11.3 - - + +
71A TRP* 3.5 32.5 - - - -
73A PRO* 4.7 2.0 - - - +
131A VAL* 3.9 28.0 - - + +
132A ARG 4.0 7.9 + - - +
133A SER* 2.9 29.0 + - - +
134A VAL* 4.2 6.1 + - - +
136A THR* 3.6 7.2 - - - +
137A ARG* 1.3 79.1 - - - +
139A ILE* 1.3 67.9 + - - +
140A VAL 4.3 0.2 - - - -
179A LEU* 4.6 6.2 - - - +
181A SER* 3.8 10.4 + - - -
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Residues in contact with ILE 139 (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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14A PRO* 4.9 19.5 - - + -
15A LEU 3.1 7.9 + - - +
16A THR* 3.3 16.3 - - + +
17A VAL* 2.9 23.0 + - - -
131A VAL* 4.7 0.2 - - - -
137A ARG* 4.3 1.5 + - + -
138A ASN* 1.3 81.0 - - - +
140A VAL* 1.3 73.2 + - - +
141A LEU* 5.4 3.1 - - + -
170A PRO* 3.8 15.0 - - + -
172A ASN* 3.3 24.9 - - - +
179A LEU* 5.0 5.8 - - + -
181A SER* 3.4 15.3 - - - +
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Residues in contact with VAL 140 (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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17A VAL* 3.3 19.1 - - + -
19A THR* 3.7 24.7 - - + -
75A ILE* 4.1 16.2 - - + -
129A LEU* 4.2 8.5 - - + +
130A ILE 5.5 0.2 - - - -
131A VAL* 3.6 18.8 - - + +
139A ILE* 1.3 75.0 - - - +
141A LEU* 1.3 63.0 + - - +
170A PRO* 3.3 28.5 - - + +
181A SER* 3.5 33.7 - - - +
183A LEU* 3.9 17.2 - - + +
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Residues in contact with LEU 141 (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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16A THR* 4.4 17.9 - - + -
17A VAL 2.8 8.6 + - - +
18A ASN* 3.2 15.1 - - - +
19A THR 2.7 30.3 + - - -
139A ILE* 5.4 2.5 - - + -
140A VAL* 1.3 75.5 - - - +
142A ALA* 1.3 83.3 + - - +
168A VAL* 3.5 28.7 - - + +
170A PRO* 4.3 11.7 - - + -
183A LEU* 3.7 9.4 - - - -
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Residues in contact with ALA 142 (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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18A ASN* 4.8 0.7 - - - +
19A THR* 3.6 8.7 - - - +
141A LEU* 1.3 91.4 - - - +
143A VAL* 1.3 64.6 + - - +
144A ASP* 3.8 10.7 + - - +
147A LYS* 5.5 2.7 - - + -
166A ALA* 4.2 25.1 - - + -
167A VAL 4.9 0.4 - - - +
168A VAL* 4.4 21.4 + - + +
183A LEU* 3.8 8.4 - - + +
185A TYR* 4.3 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