Contacts of the strand formed by residues 29 - 33 (chain G) in PDB entry 1XFB
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 GLY 29 (chain G).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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23G ILE 4.8 2.5 - - - -
28G LYS* 1.3 73.7 - - - +
30G ILE* 1.3 65.4 + - - -
73G CYS 2.8 10.7 + - - -
74G ILE* 3.5 4.1 - - - -
75G GLY* 2.7 24.7 + - - -
76G GLY 3.4 3.6 + - - -
299G THR* 3.5 10.1 - - - -
300G PHE* 3.2 24.6 - - - -
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Residues in contact with ILE 30 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
23G ILE* 3.6 32.8 - - + -
24G VAL* 6.0 0.4 - - + -
29G GLY* 1.3 75.5 - - - +
31G LEU* 1.3 64.8 + - - +
74G ILE* 4.9 0.7 - - - -
76G GLY* 3.3 14.1 - - - +
78G ILE* 3.6 33.9 - - + -
145G PHE* 4.4 3.1 - - + -
186G ILE* 3.8 25.6 - - + -
228G LEU* 4.5 1.1 - - + -
269G THR* 3.9 22.4 - - + -
300G PHE* 2.8 25.0 + - - +
301G SER* 3.4 10.7 - - - +
302G TYR 3.3 24.1 + - - +
306G LEU* 3.7 0.7 - - - +
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Residues in contact with LEU 31 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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29G GLY 4.3 0.4 + - - -
30G ILE* 1.3 72.6 - - - +
32G ALA* 1.3 63.5 + - - +
33G ALA* 3.4 6.1 + - + +
63G LEU* 4.2 19.3 - - + -
64G PHE* 4.3 10.5 - - + -
74G ILE* 4.5 13.0 - - + +
76G GLY 2.9 11.8 + - - +
77G VAL* 3.3 26.0 - - + -
78G ILE 2.8 26.5 + - - -
302G TYR 4.2 0.2 - - - +
306G LEU* 3.7 26.5 - - + -
307G GLN* 3.8 22.7 - - + +
328G PHE* 3.7 28.5 - - + -
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Residues in contact with ALA 32 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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30G ILE 3.6 0.8 + - - -
31G LEU* 1.3 72.0 - - - +
33G ALA* 1.3 55.6 + - - +
34G ASP* 3.4 20.6 + - - +
35G GLU* 3.7 5.4 - - - +
78G ILE* 4.1 11.9 - - + -
147G LYS* 5.1 0.7 - - - +
230G LYS* 4.1 20.6 - - - +
301G SER* 4.4 3.4 - - - +
302G TYR 2.9 26.2 + - - +
303G GLY* 3.5 11.0 - - - -
307G GLN* 3.3 16.1 + - - -
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Residues in contact with ALA 33 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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31G LEU* 3.4 16.0 + - + -
32G ALA* 1.3 73.5 - - - +
34G ASP* 1.3 55.0 + - - +
35G GLU* 3.0 15.8 + - - +
60G ARG* 3.1 25.6 + - - +
63G LEU* 4.4 14.4 - - + -
64G PHE* 4.4 22.0 - - + -
77G VAL* 4.8 0.7 - - + -
78G ILE 3.0 17.3 + - - +
79G PHE* 4.3 0.5 - - - -
80G PHE 3.7 8.1 + - - -
83G THR* 4.9 1.7 + - - +
307G GLN* 4.2 2.2 - - - +
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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