Contacts of the helix formed by residues 18 - 29 (chain B) in PDB entry 3SJ5
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 18 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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14B ARG* 2.7 26.8 + - - -
15B ASP 4.4 1.0 + - - -
17B TYR* 1.3 76.0 - - - +
19B ASN* 1.3 65.8 + - - -
20B ASP 3.3 2.9 - - - -
21B VAL 3.7 1.2 + - - -
22B VAL* 3.3 26.0 + - - +
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Residues in contact with ASN 19 (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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14B ARG* 2.9 46.9 + - - +
18B GLY* 1.3 71.7 - - - -
20B ASP* 1.3 61.6 + - - +
22B VAL 3.5 0.3 + - - -
23B ASP* 2.8 43.7 + - - +
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Residues in contact with ASP 20 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
18B GLY 3.3 1.2 - - - -
19B ASN* 1.3 79.2 - - - +
21B VAL* 1.3 66.5 + - + +
23B ASP* 3.9 7.3 - - - +
24B GLU* 3.0 44.8 + - - +
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Residues in contact with VAL 21 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
17B TYR* 3.8 26.4 + - + +
18B GLY 3.7 3.4 + - - +
19B ASN 3.4 0.4 - - - -
20B ASP* 1.3 77.2 - - + +
22B VAL* 1.3 59.4 + - + +
24B GLU* 3.8 9.7 - - - +
25B SER* 2.8 41.7 + - - +
55B VAL* 4.1 16.2 - - + -
58B LYS* 4.1 20.0 - - + +
59B THR* 4.0 28.5 - - + -
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Residues in contact with VAL 22 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
10B ILE* 3.5 31.6 - - + -
13B LEU* 3.6 19.5 - - + +
14B ARG* 3.4 44.4 - - + +
17B TYR* 5.2 0.4 - - + -
18B GLY 3.3 18.2 + - - +
20B ASP 3.3 0.4 - - - -
21B VAL* 1.3 78.2 - - + +
23B ASP* 1.3 61.7 + - - +
25B SER* 3.2 6.6 + - - -
26B LEU* 2.8 41.1 + - + +
51B ILE* 6.0 2.2 - - + -
55B VAL* 5.0 3.4 - - + -
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Residues in contact with ASP 23 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
14B ARG* 2.8 26.8 + - - -
19B ASN* 2.8 37.7 + - - +
20B ASP* 3.9 9.2 + - - +
22B VAL* 1.3 72.5 - - - +
24B GLU* 1.3 62.8 + - + +
26B LEU* 3.1 6.7 + - - +
27B LYS* 3.0 45.4 + - - +
33B PRO* 3.2 28.2 - - + +
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Residues in contact with GLU 24 (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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20B ASP* 3.0 37.6 + - + +
21B VAL* 3.8 4.8 - - - +
23B ASP* 1.3 76.6 - - + +
25B SER* 1.3 62.8 + - - +
27B LYS* 3.3 16.6 + - + +
28B SER* 3.3 21.3 + - - -
58B LYS* 3.5 31.4 + - - +
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Residues in contact with SER 25 (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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21B VAL 2.8 23.6 + - - -
22B VAL* 3.5 4.0 - - - -
24B GLU* 1.3 75.1 - - - +
26B LEU* 1.3 64.1 + - - +
28B SER* 2.8 23.2 + - - -
29B VAL* 3.6 12.3 + - - +
51B ILE* 4.2 9.8 - - - +
54B LYS* 3.8 14.4 - - - +
55B VAL* 3.4 36.3 + - - +
58B LYS* 3.7 10.6 - - - +
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Residues in contact with LEU 26 (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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10B ILE* 4.1 17.7 - - + -
14B ARG* 3.5 28.0 - - - +
22B VAL* 2.8 30.9 + - + +
23B ASP 3.1 4.2 + - - +
25B SER* 1.3 72.2 - - - +
27B LYS* 1.3 62.3 + - - +
29B VAL* 3.0 20.0 - - - +
31B TRP* 3.1 51.8 + - + +
32B GLU 4.9 2.0 - - - +
33B PRO* 4.2 19.7 - - + +
51B ILE* 3.9 24.7 - - + -
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Residues in contact with LYS 27 (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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23B ASP* 3.0 33.8 + - - +
24B GLU* 3.6 15.2 - - + +
25B SER 3.2 0.2 - - - -
26B LEU* 1.3 76.4 - - - +
28B SER* 1.3 58.1 + - - +
29B VAL 3.0 0.2 - - - -
30B GLY* 3.0 21.1 + - - -
31B TRP 3.6 8.7 - - - +
32B GLU* 5.4 0.2 - - - -
33B PRO* 3.4 38.9 - - + +
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Residues in contact with SER 28 (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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24B GLU 3.3 7.5 + - - -
25B SER 2.8 19.9 + - - -
27B LYS* 1.3 78.3 - - - +
29B VAL* 1.3 60.8 + - - +
50B ARG* 5.6 2.1 + - - -
54B LYS* 3.2 42.0 + - - +
58B LYS* 5.0 2.0 - - - -
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Residues in contact with VAL 29 (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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25B SER 3.7 12.3 - - - +
26B LEU* 3.0 20.6 - - - +
28B SER* 1.3 85.1 - - - +
30B GLY* 1.3 57.8 + - - +
31B TRP* 3.7 15.9 - - + +
47B GLU* 3.5 25.2 - - + +
50B ARG* 3.8 55.5 + - + +
51B ILE* 3.9 20.6 - - + +
54B LYS* 5.5 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