Contacts of the helix formed by residues 97 - 110 (chain A) in PDB entry 3SI5
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 97 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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59A LYS* 4.0 17.0 + - - +
81A TYR* 5.6 2.5 + - - +
93A GLY 4.3 0.2 + - - -
94A LYS 3.5 18.8 + - - -
95A GLU* 3.7 12.3 + - - +
96A SER* 1.3 78.9 + - - +
98A MET* 1.3 63.0 + - - +
99A SER* 3.5 2.5 - - - -
100A THR* 3.3 12.3 + - - -
101A LEU* 2.9 30.5 + - + +
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Residues in contact with MET 98 (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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82A ILE* 3.7 42.8 - - + +
85A THR* 3.5 24.2 - - + +
86A GLU* 3.9 24.2 - - + +
92A GLY* 6.3 0.9 - - - -
96A SER* 3.1 20.2 + - - +
97A ASN* 1.3 75.0 - - - +
99A SER* 1.3 58.6 + - - +
101A LEU* 3.0 7.3 + - - +
102A LEU* 2.8 50.5 + - + +
127A LYS* 4.9 3.6 - - + -
131A LEU* 4.5 7.2 - - + -
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Residues in contact with SER 99 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
97A ASN 5.1 0.9 - - - -
98A MET* 1.3 77.9 - - - +
100A THR* 1.3 63.4 + - - +
102A LEU* 3.5 3.9 + - - +
103A GLU* 3.0 33.4 + - - +
131A LEU* 3.9 24.8 - - - +
213X ILE* 3.8 24.6 - - - +
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Residues in contact with THR 100 (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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97A ASN* 3.3 12.6 + - - -
98A MET 3.2 0.6 - - - -
99A SER* 1.3 81.4 + - - +
101A LEU* 1.3 59.0 + - - +
103A GLU* 3.3 14.1 + - + +
104A ARG* 2.9 44.5 + - + +
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Residues in contact with LEU 101 (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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78A TRP* 4.0 9.5 - - + -
81A TYR* 3.3 47.8 - - + +
82A ILE* 3.7 21.8 - - + -
85A THR* 3.5 33.2 - - + +
96A SER 4.3 4.5 - - - +
97A ASN* 2.9 27.0 + - + +
98A MET* 3.3 8.7 - - - +
100A THR* 1.3 70.9 - - - +
102A LEU* 1.3 59.0 + - - +
104A ARG* 3.3 20.5 + - - +
105A ALA* 2.9 30.3 + - - +
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Residues in contact with LEU 102 (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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82A ILE* 3.8 22.9 - - + -
98A MET* 2.8 34.9 + - + +
99A SER* 3.7 4.5 - - - +
101A LEU* 1.3 70.6 - - - +
103A GLU* 1.3 66.4 + - - +
105A ALA* 3.3 4.6 + - - +
106A VAL* 3.0 27.9 + - - +
124A LEU* 3.8 28.4 - - + +
127A LYS* 3.7 16.6 - - + -
128A LEU* 3.7 35.4 - - + +
131A LEU* 3.7 27.1 - - + -
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Residues in contact with GLU 103 (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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99A SER 3.0 20.2 + - - +
100A THR* 3.3 13.3 + - + +
102A LEU* 1.3 75.9 - - - +
104A ARG* 1.3 59.1 + - + +
106A VAL 3.5 0.2 + - - -
107A GLU* 2.9 31.3 + - - +
128A LEU* 4.1 4.9 - - + -
213X ILE* 3.2 40.8 - - + +
218X PHE* 3.5 35.0 - - + +
221X ARG* 3.1 24.5 + - - +
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Residues in contact with ARG 104 (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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63A GLU* 2.8 43.8 + - - -
66A ILE* 4.0 8.3 - - - +
78A TRP* 3.9 27.7 - - + -
81A TYR* 4.6 0.2 - - - -
100A THR* 2.9 36.7 + - + +
101A LEU* 3.6 18.5 - - - +
103A GLU* 1.3 77.2 - - + +
105A ALA* 1.3 58.0 + - - +
107A GLU* 3.6 14.1 - - - +
108A ALA* 3.0 29.8 + - - +
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Residues in contact with ALA 105 (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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78A TRP* 3.6 30.7 - - + -
82A ILE* 5.2 1.3 - - + -
101A LEU 2.9 17.1 + - - +
102A LEU* 3.7 5.2 - - - +
104A ARG* 1.3 74.9 - - - +
106A VAL* 1.3 66.3 + - - +
108A ALA* 3.3 1.7 + - - -
109A LEU* 3.1 29.3 + - - +
124A LEU* 3.8 32.5 - - + -
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Residues in contact with VAL 106 (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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102A LEU 3.0 19.0 + - - +
103A GLU 3.8 2.7 - - - +
105A ALA* 1.3 75.3 - - - +
107A GLU* 1.3 58.2 + - - +
109A LEU* 4.6 2.0 - - - +
110A GLN* 2.7 35.5 + - + +
121A PHE* 5.8 2.0 - - - -
124A LEU* 4.4 21.1 - - + -
125A TRP* 3.4 51.8 - - + +
128A LEU* 4.0 15.3 - - + -
218X PHE* 3.7 20.6 - - + -
222X LEU* 3.8 7.6 - - + -
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Residues in contact with GLU 107 (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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103A GLU 2.9 17.8 + - - +
104A ARG* 3.6 16.7 - - - +
105A ALA 3.3 0.2 - - - -
106A VAL* 1.3 78.7 - - - +
108A ALA* 1.3 61.4 + - - +
110A GLN* 2.9 27.6 - - - +
221X ARG* 3.6 27.3 + - - +
222X LEU* 3.7 26.8 - - + +
225X GLY 4.3 13.9 - - - +
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Residues in contact with ALA 108 (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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78A TRP* 4.0 25.4 - - + +
104A ARG 3.0 17.6 + - - +
105A ALA 3.8 3.8 - - - +
106A VAL 3.2 0.2 - - - -
107A GLU* 1.3 80.3 - - - +
109A LEU* 1.3 66.0 + - + +
110A GLN* 3.9 1.9 + - - +
112A GLU* 5.0 2.6 - - - +
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Residues in contact with LEU 109 (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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74A PRO* 4.1 31.9 - - + -
75A LEU* 3.7 39.3 - - + -
78A TRP* 4.0 18.4 - - + +
105A ALA 3.1 17.6 + - - +
106A VAL* 3.6 0.9 - - - +
108A ALA* 1.3 83.9 - - + +
110A GLN* 1.3 66.5 + - - +
111A GLY 3.4 0.3 + - - -
112A GLU* 3.1 30.7 + - + +
115A TYR* 4.3 11.7 - - + -
121A PHE* 3.9 22.9 - - + -
124A LEU* 4.2 9.9 - - + -
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Residues in contact with GLN 110 (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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106A VAL* 2.7 23.4 + - + +
107A GLU* 2.9 31.6 - - - +
108A ALA 5.0 1.8 - - - +
109A LEU* 1.3 73.3 - - - +
111A GLY* 1.3 61.1 + - - +
112A GLU* 3.2 3.5 + - - +
121A PHE* 5.1 4.5 - - - -
125A TRP* 5.5 5.2 - - + -
222X LEU* 3.8 44.8 + - + +
223X LYS* 5.6 1.0 - - - +
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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