Contacts of the strand formed by residues 1173 - 1176 (chain B) in PDB entry 1G24
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 ILE1173 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1128B ARG* 4.0 21.5 - - - +
1169B GLU* 3.8 31.6 - - + -
1171B GLY 4.2 1.8 - - - +
1172B TYR* 1.3 76.7 - - - +
1174B SER* 1.3 60.5 + - - +
1175B THR* 3.7 20.1 + - + -
1192B PHE* 4.0 7.9 - - + -
1215B MET 3.8 0.9 - - - +
1216B LEU* 4.0 2.7 - - - -
1217B LEU* 2.9 43.0 + - + +
1218B PRO 4.7 2.2 - - - +
1221B SER* 4.4 15.3 - - - -
1223B TYR* 4.2 13.0 - - + -
1243B MET* 4.2 22.7 - - + -
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Residues in contact with SER1174 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1079B TYR* 2.9 28.0 + - - -
1083B ALA* 5.4 1.4 - - - +
1128B ARG* 2.6 38.4 + - - +
1172B TYR 4.0 2.4 + - - -
1173B ILE* 1.3 71.6 - - - +
1175B THR* 1.3 62.8 + - - +
1214B GLU* 2.7 30.4 + - - -
1215B MET 4.1 0.9 - - - -
1216B LEU* 3.6 3.3 - - - +
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Residues in contact with THR1175 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1126B LEU* 3.4 19.5 - - + +
1127B PHE 3.1 14.1 - - - +
1128B ARG* 4.2 1.3 - - + -
1173B ILE* 3.8 23.3 - - + +
1174B SER* 1.3 80.0 - - - +
1176B SER* 1.3 64.1 + - - +
1183B PHE* 5.1 2.0 - - - -
1192B PHE* 4.1 16.6 - - + -
1214B GLU* 3.2 10.7 - - - +
1215B MET* 2.8 46.8 + - - +
1217B LEU* 4.1 14.6 - - + -
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Residues in contact with SER1176 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1126B LEU* 3.7 7.3 - - - -
1127B PHE* 2.7 33.2 + - - -
1175B THR* 1.3 76.5 - - - +
1177B LEU* 1.3 64.1 + - - +
1178B MET 3.0 22.8 + - - -
1180B VAL* 3.4 19.8 - - - +
1182B GLN* 6.2 0.2 - - - -
1183B PHE* 4.0 5.2 - - - -
1212B GLN 2.8 25.4 + - - -
1213B LEU* 3.4 7.2 - - - +
1215B MET* 4.3 0.4 - - - +
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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