Contacts of the strand formed by residues 136 - 141 (chain A) in PDB entry 3MH5
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 ILE 136 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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101A VAL* 4.1 8.7 - - + -
102A THR 3.4 2.9 - - - +
103A ASN* 5.1 0.7 - - - +
104A ASN* 4.2 0.7 - - - -
131A ASP* 3.0 26.8 + - - +
134A SER* 3.4 18.8 - - - +
135A ASP* 1.3 82.7 - - - +
137A ALA* 1.3 63.4 + - - +
224A ILE* 3.7 34.8 - - + -
242A ILE* 3.6 32.5 - - + -
247A VAL* 4.4 5.8 - - + -
250A LEU* 3.9 14.6 - - + -
251A THR* 4.1 19.3 - - + -
254A MET* 3.4 20.4 - - + +
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Residues in contact with ALA 137 (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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101A VAL* 3.5 8.3 - - - +
102A THR* 2.6 38.5 + - + +
104A ASN* 3.8 11.4 - - - -
107A VAL* 3.4 33.2 - - + -
129A GLY 3.5 12.8 - - - +
130A LYS* 3.9 6.3 - - + +
136A ILE* 1.3 76.5 - - - +
138A LEU* 1.3 62.1 + - - +
139A ILE 4.3 0.2 - - - -
254A MET* 4.3 3.6 - - - -
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Residues in contact with LEU 138 (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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93A ILE* 4.6 4.5 - - + -
99A TYR* 4.0 17.5 - - + -
100A VAL 3.1 32.3 - - - +
101A VAL* 3.8 5.4 - - + +
127A MET* 3.8 1.0 - - - +
128A VAL* 2.9 48.6 + - + +
129A GLY 2.7 14.3 + - - +
137A ALA* 1.3 72.7 - - - +
139A ILE* 1.3 74.6 + - - +
251A THR* 3.8 30.1 - - + +
254A MET* 3.9 14.6 - - - -
255A VAL* 3.8 22.9 - - + -
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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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29A ILE* 3.9 15.7 - - + -
99A TYR* 3.6 1.9 - - - -
100A VAL* 2.8 60.2 + - + +
102A THR* 4.5 7.6 - - + -
107A VAL* 3.9 15.9 - - + -
113A ILE* 3.9 29.6 - - + -
115A VAL* 3.7 29.4 - - + -
125A ALA* 3.9 11.0 - - + -
126A LYS 3.2 10.3 - - - +
127A MET* 4.3 6.7 - - - -
128A VAL* 3.7 2.6 - - - +
138A LEU* 1.3 82.3 - - - +
140A GLN* 1.3 61.6 + - - +
141A ILE* 5.7 0.2 - - + -
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Residues in contact with GLN 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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97A LYS* 2.8 31.1 + - - +
98A GLY 3.3 3.1 - - - +
99A TYR* 3.2 26.1 + - + -
125A ALA* 3.1 5.9 - - - -
126A LYS 2.7 33.5 + - - +
128A VAL* 3.6 16.0 - - + +
139A ILE* 1.3 76.2 - - - +
141A ILE* 1.3 68.8 + - - +
142A GLN* 3.6 3.8 + - - +
121B ARG* 3.4 31.4 + - + +
122B LYS 3.3 31.0 + - - +
123B PHE* 4.6 5.5 - - - -
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Residues in contact with ILE 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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92A ILE* 4.6 5.2 - - + -
97A LYS 4.2 0.3 - - - +
98A GLY 2.7 17.0 + - - +
100A VAL* 3.7 24.9 - - + -
115A VAL* 4.3 26.5 - - + -
117A LEU* 4.7 5.2 - - + -
123A PHE* 3.3 40.2 - - + -
124A ASP 3.5 4.7 - - - -
125A ALA* 4.3 0.9 - - + -
140A GLN* 1.3 83.4 - - - +
142A GLN* 1.3 67.3 + - - +
143A ASN 3.7 0.2 + - - -
144A PRO* 3.5 28.4 - - + +
147A LEU* 3.5 28.0 - - + -
120B GLY 4.1 2.8 - - - +
121B ARG* 4.7 0.3 - - - -
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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