Contacts of the strand formed by residues 319 - 323 (chain A) in PDB entry 1PG0
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 ASN 319 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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204A TRP* 5.4 1.1 - - - -
209A ALA* 3.0 36.5 + - - +
210A LEU* 3.5 18.8 - - - +
289A LEU 3.3 2.5 + - - +
290A TYR* 3.5 27.1 - - + -
291A HIS 3.3 20.6 + - - -
317A PRO* 3.2 3.7 - - - +
318A SER* 1.3 85.6 + - - +
320A LEU* 1.3 79.7 + - - +
321A PHE* 3.9 18.5 - - + -
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Residues in contact with LEU 320 (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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204A TRP* 4.5 6.1 - - + -
210A LEU* 3.8 22.9 - - + +
211A GLN* 3.6 15.3 + - - +
214A VAL* 5.4 2.8 - - + +
291A HIS* 3.6 33.0 - - + +
293A ILE* 4.7 6.5 - - + -
298A VAL* 4.9 4.9 - - + +
301A HIS* 3.6 36.1 - - + +
302A SER* 3.7 23.1 - - - -
317A PRO* 4.0 9.9 - - + -
319A ASN* 1.3 91.9 + - - +
321A PHE* 1.3 67.7 + - - +
322A VAL* 3.8 11.6 - - + +
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Residues in contact with PHE 321 (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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30A GLN* 5.1 2.4 - - - +
34A TRP* 4.3 15.9 - + - -
211A GLN* 3.9 3.8 - - + -
290A TYR* 3.4 48.0 - + + -
291A HIS 2.9 9.9 + - - +
292A PHE* 3.3 48.4 - + + +
293A ILE 3.0 23.8 + - - +
319A ASN* 3.9 23.1 - - + -
320A LEU* 1.3 78.5 - - - +
322A VAL* 1.3 62.2 + - - +
323A HIS* 4.0 1.2 + - - -
433A GLU 6.0 0.4 - - - -
435A ARG* 3.4 44.6 - - - +
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Residues in contact with VAL 322 (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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30A GLN* 5.4 3.2 + - - -
211A GLN* 2.8 40.8 + - - +
214A VAL* 3.8 17.5 - - + -
293A ILE* 3.2 19.1 - - + +
294A GLY 3.8 0.4 - - - -
295A LYS* 3.6 36.6 - - + +
298A VAL* 3.8 19.3 - - + -
320A LEU* 4.5 11.2 - - + +
321A PHE* 1.3 74.8 - - - +
323A HIS* 1.3 66.3 + - - +
366A ARG 3.9 3.6 - - - +
367A ILE* 3.7 18.5 - - + +
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Residues in contact with HIS 323 (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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26A LEU* 4.2 15.0 - - + -
27A GLU* 2.8 47.5 + - + +
30A GLN* 3.5 31.2 + - - +
292A PHE 5.0 0.4 - - - -
293A ILE 3.0 27.5 + - - -
294A GLY* 3.5 7.2 - - - -
295A LYS* 3.5 21.7 + - - +
321A PHE 4.8 0.6 + - - -
322A VAL* 1.3 75.8 - - - +
324A GLY* 1.3 85.1 + - - +
325A TYR* 5.4 0.2 - + - -
363A LEU* 5.1 4.9 - - + -
366A ARG 4.5 3.6 - - - +
367A ILE* 4.1 7.9 - - - +
553A MOD 3.4 23.0 + + - -
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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