Contacts of the strand formed by residues 122 - 127 (chain A) in PDB entry 1EFP
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 122 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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118A LEU* 2.9 49.6 + - + -
119A ASP* 3.0 30.3 + - - +
121A ASP* 1.3 82.8 + - - +
123A PHE* 1.3 68.2 + - - +
135A VAL* 3.8 10.8 - - + -
136A VAL 3.3 11.7 - - - +
137A LYS* 3.7 16.6 + - + +
222B VAL* 5.4 4.7 - - + -
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Residues in contact with PHE 123 (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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86A HIS* 4.3 3.8 - + - -
111A LEU* 4.5 15.0 - - + -
114A VAL* 3.8 34.5 - - + -
116A ALA 3.4 7.0 - - - +
117A ILE* 4.1 16.6 - - + -
118A LEU* 4.4 2.2 - - - +
119A ASP 4.3 3.8 - - - -
120A ALA 4.2 6.3 - - - -
121A ASP* 3.3 31.0 - - - -
122A THR* 1.3 78.3 - - - +
124A GLU* 1.3 63.2 + - - +
135A VAL* 3.3 7.2 - - - +
136A VAL* 2.9 43.0 + - + +
138A SER* 5.0 2.0 - - - -
143A LYS* 3.8 19.7 - - + -
145A PHE* 3.7 42.8 - + - -
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Residues in contact with GLU 124 (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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114A VAL* 3.4 5.2 - - - -
115A SER* 2.8 31.8 + - - +
116A ALA* 2.8 34.1 + - + +
118A LEU* 4.1 17.7 - - + +
123A PHE* 1.3 76.7 - - - +
125A ARG* 1.3 61.8 + - - +
133A ILE* 3.9 11.1 - - + +
134A GLN 3.4 3.8 - - - +
135A VAL* 3.7 25.8 - - + +
225B ARG* 3.0 41.5 + - - -
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Residues in contact with ARG 125 (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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111A LEU* 5.0 9.2 - - - +
112A SER* 2.9 42.6 + - - +
113A ASP* 3.9 4.2 - - - +
114A VAL* 4.5 3.8 - - + -
115A SER* 4.3 0.4 + - - -
123A PHE* 6.2 0.2 - - + -
124A GLU* 1.3 76.9 - - - +
126A PRO* 1.3 76.4 + - + +
127A ILE* 3.3 23.0 - - - +
133A ILE* 4.5 4.4 - - - +
134A GLN* 2.8 65.3 + - + +
136A VAL* 4.5 12.1 - - + -
126B ASN* 2.8 31.7 + - - +
127B ASP* 3.6 18.2 + - - +
128B MET* 3.7 23.8 - - - +
219B LEU* 5.8 2.0 - - - -
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Residues in contact with PRO 126 (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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113A ASP* 3.3 23.6 - - + +
115A SER* 4.3 11.4 - - - -
125A ARG* 1.3 95.1 + - + +
127A ILE* 1.3 62.5 + - - +
130A GLY* 4.2 19.5 + - - +
132A ALA 3.4 7.0 - - - +
133A ILE* 4.2 16.2 - - + -
148A ARG* 4.1 27.4 - - - +
269A LYS* 5.7 2.5 - - - +
127B ASP* 4.5 8.5 - - - +
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Residues in contact with ILE 127 (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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125A ARG* 3.3 28.5 - - - +
126A PRO* 1.3 73.9 - - - +
128A TYR* 1.3 86.4 + - + +
129A ALA 3.4 2.2 - - - -
130A GLY* 2.8 11.5 + - - -
131A ASN 3.2 7.8 + - - -
132A ALA* 2.8 41.0 + - + +
134A GLN* 3.9 38.4 - - + +
26B VAL* 4.4 3.4 - - + -
125B ASP 3.7 9.9 - - - +
126B ASN* 4.3 7.9 - - + +
127B ASP* 4.0 2.9 - - - -
224B VAL* 4.2 9.9 - - + -
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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