Contacts of the strand formed by residues 130 - 133 (chain A) in PDB entry 1ML3
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 LYS 130 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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105A GLU 3.0 3.2 + - - -
106A TYR* 3.4 32.4 - - + -
107A VAL* 3.0 28.9 + - - +
124A LEU* 4.4 0.2 - - - -
128A ALA 3.7 0.2 - - - -
129A ARG* 1.3 123.5 - - + +
131A VAL* 1.3 63.5 + - - +
132A VAL* 5.7 0.7 - - + -
153A TYR* 2.9 18.1 + - - +
155A PRO 2.6 27.9 + - - -
158A HIS 2.8 19.9 + - - +
159A HIS* 2.9 29.2 - - - +
350A MET* 4.3 8.3 - - + -
354A ASP* 3.5 2.7 - - - +
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Residues in contact with VAL 131 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
107A VAL* 3.3 31.6 - - + +
109A GLU* 3.7 25.4 - - + -
120A ALA* 3.9 17.5 - - + +
123A HIS* 3.6 23.3 - - + -
124A LEU* 4.2 13.5 - - + -
130A LYS* 1.3 75.8 - - - +
132A VAL* 1.3 69.7 + - - +
133A ILE* 4.1 3.1 - - + +
159A HIS 2.9 10.5 + - - +
160A VAL* 3.7 10.6 - - + -
161A VAL* 3.0 30.3 + - - +
350A MET* 4.6 0.7 - - - +
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Residues in contact with VAL 132 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
106A TYR* 5.9 3.1 - - + -
107A VAL 3.1 5.6 + - - +
108A ILE* 3.7 14.9 - - + +
109A GLU 2.9 23.7 + - - -
130A LYS 5.7 0.4 - - - -
131A VAL* 1.3 81.1 - - - +
133A ILE* 1.3 72.2 + - - +
134A SER 3.3 2.3 + - - -
161A VAL* 3.5 7.0 - - + +
163A ASN* 4.3 9.2 - - + +
343A VAL* 4.4 16.6 - - + +
346A LEU* 4.1 21.1 - - + -
347A VAL* 4.0 18.8 - - + -
350A MET* 3.7 29.2 - - + -
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Residues in contact with ILE 133 (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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109A GLU* 3.5 16.2 - - + +
114A PHE 3.9 7.6 - - - +
115A THR* 3.9 33.2 - - + +
117A LYS 4.7 2.2 - - - +
120A ALA* 3.7 31.2 - - + -
131A VAL* 4.6 1.3 - - + -
132A VAL* 1.3 72.7 - - - +
134A SER* 1.3 58.4 + - - +
135A ALA* 2.8 24.8 + - + +
136A PRO 4.4 1.1 - - - +
137A ALA* 3.7 21.5 - - + -
141A ALA* 4.6 4.0 - - + -
160A VAL* 4.1 13.0 - - + -
161A VAL 2.8 19.3 + - - +
162A SER* 4.3 1.8 - - - -
163A ASN 3.2 20.8 + - - -
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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