Contacts of the strand formed by residues 577 - 580 (chain B) in PDB entry 1GKU
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 VAL 577 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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17B ALA* 4.2 16.6 - - + -
18B ALA 3.3 9.0 - - - +
19B ALA* 3.9 10.8 - - + -
559B LEU* 3.8 6.6 - - - +
560B ILE* 3.1 44.4 + - + +
563B ARG* 5.1 12.1 - - + -
567B GLY 3.7 8.1 + - - +
568B VAL 5.4 0.7 - - - -
569B LEU* 3.7 36.6 - - + -
575B VAL 3.8 1.1 - - - +
576B PRO* 1.3 81.8 - - - +
578B TYR* 1.3 72.3 + - - +
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Residues in contact with TYR 578 (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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17B ALA* 3.3 9.5 - - - +
18B ALA* 2.7 49.5 + - + +
19B ALA* 5.6 0.4 - - - -
20B ALA* 5.6 4.3 - - + -
557B VAL* 3.6 24.2 - - + -
558B ASP* 3.2 31.2 - - - -
559B LEU* 3.5 29.6 - - + +
560B ILE* 4.7 1.3 - - - -
576B PRO* 4.2 21.8 - - + +
577B VAL* 1.3 77.4 - - - +
579B ALA* 1.3 64.2 - - - +
638B LYS* 3.3 38.1 - - - -
641B TRP* 4.5 13.7 - + - -
642B ASP* 5.0 2.5 - - - -
685B VAL* 3.8 13.5 - - - +
688B ARG* 5.6 5.8 - - + +
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Residues in contact with ALA 579 (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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16B ALA 4.1 14.1 - - - +
17B ALA* 5.3 0.7 - - + -
557B VAL* 3.6 6.7 - - - -
558B ASP* 3.3 22.1 + - - +
560B ILE* 4.5 25.1 - - + -
578B TYR* 1.3 81.1 - - - +
580B SER* 1.3 70.6 + - - +
581B ILE* 3.2 2.6 + - - -
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Residues in contact with SER 580 (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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16B ALA 4.9 2.2 + - - -
556B VAL 3.6 11.2 - - - -
557B VAL* 3.6 6.0 - - - +
579B ALA* 1.3 75.1 - - - +
581B ILE* 1.3 63.3 - - - +
582B LYS 3.8 5.0 + - - +
608B ASN* 2.7 31.2 + - - -
609B SER* 3.8 4.5 - - - -
610B ARG* 3.4 23.4 - - - +
613B ILE* 5.7 0.7 - - - -
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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