Contacts of the strand formed by residues 3 - 8 (chain K) in PDB entry 3SDI
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 3 (chain K).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1K THR* 3.8 9.4 - - + -
2K THR* 1.3 82.1 - - - +
4K LEU* 1.3 62.7 + - - +
15K ALA 3.5 5.6 - - - -
16K VAL* 3.6 23.3 - - + -
33K LYS* 4.8 2.2 - - + -
44K THR* 4.2 6.1 + - - -
45K MET 3.6 28.4 - - - +
46K ALA* 4.7 0.6 - - + +
98K GLY 5.5 0.3 + - - -
100K MET* 3.4 19.2 - - - +
126K CYS* 3.2 5.5 - - - +
127K VAL* 2.9 47.7 + - - +
159K ILE* 4.5 0.2 - - - -
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Residues in contact with LEU 4 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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3K THR* 1.3 75.1 - - - +
5K ALA* 1.3 67.6 + - - +
6K PHE* 3.8 30.7 - - + -
13K ILE* 4.4 2.5 - - + +
14K VAL* 3.5 5.6 - - - +
15K ALA* 2.8 50.8 + - + +
44K THR* 4.9 0.2 - - - +
100K MET* 3.8 5.9 - - - +
125K PHE 3.1 13.2 - - - +
126K CYS* 3.9 16.4 - - - -
134K ALA* 4.9 2.9 - - + -
138K LEU* 4.8 7.2 - - + -
155K GLY* 4.0 9.2 - - - +
158K SER* 4.6 8.1 - - - -
159K ILE* 2.8 48.0 - - + +
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Residues in contact with ALA 5 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4K LEU* 1.3 78.4 - - - +
6K PHE* 1.3 63.2 + - - +
12K ILE* 4.6 0.4 - - + -
13K ILE 3.1 12.1 - - - +
14K VAL* 3.9 5.2 - - + -
100K MET* 3.9 14.3 - - + -
102K CYS* 3.8 28.5 - - - -
110K ILE* 3.7 13.3 - - + +
124K ILE* 3.5 1.4 - - - +
125K PHE 3.0 29.6 + - - +
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Residues in contact with PHE 6 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4K LEU* 3.8 18.4 - - + -
5K ALA* 1.3 75.4 - - - +
7K ARG* 1.3 63.3 + - - +
8K PHE* 4.1 5.3 + + + -
12K ILE* 3.3 4.3 - - - -
13K ILE* 3.0 63.5 + - + -
110K ILE* 3.7 5.6 - - - -
123K ASP 2.9 9.4 - - - +
124K ILE* 4.0 19.5 - - + -
138K LEU* 3.7 29.2 - - + -
142K TYR* 3.8 25.8 - + + -
146K LEU* 4.9 4.5 - - + -
151K ALA* 3.2 36.8 - - + -
154K LEU* 4.5 3.4 - - + -
155K GLY* 4.1 7.4 - - - -
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Residues in contact with ARG 7 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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6K PHE* 1.3 71.9 - - - +
8K PHE* 1.3 57.7 + - - +
11K GLY 3.4 13.7 - - - +
12K ILE* 3.8 11.4 - - + -
108K PRO* 3.1 48.2 + - + +
109K THR* 4.2 7.7 - - - +
110K ILE* 3.6 14.8 - - + +
121K LYS* 6.0 6.4 - - - +
122K GLY 4.4 3.0 + - - -
123K ASP* 2.6 46.5 + - + +
142K TYR* 2.7 32.9 + - - -
144K TRP* 3.9 24.4 - - + -
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Residues in contact with PHE 8 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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6K PHE* 4.4 6.1 - + + -
7K ARG* 1.3 77.4 + - - +
9K GLN* 1.3 70.8 + - - +
10K GLY* 2.9 33.4 + - - -
11K GLY* 3.0 40.6 + - - +
12K ILE 3.9 1.3 - - - -
13K ILE* 3.5 34.8 - - + -
108K PRO* 5.5 1.2 - - - +
142K TYR* 4.6 4.5 - - + -
143K LYS 4.5 6.7 - - - +
144K TRP* 3.4 32.9 - - - +
146K LEU* 3.2 30.3 - - + -
148K VAL* 3.9 17.9 - - + -
151K ALA* 3.6 22.9 - - + -
177K HIS* 4.1 2.0 - - - -
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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