Contacts of the helix formed by residues 372 - 377 (chain I) in PDB entry 5G04
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 TRP 372 (chain I).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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368I GLY 3.1 8.6 + - - +
369I MET 3.1 14.0 + - - +
371I SER* 1.3 70.5 - - - +
373I LYS* 1.3 64.9 + - - +
374I GLN* 3.5 28.9 - - + -
375I LYS* 3.3 27.1 + - + +
376I TYR* 3.2 30.4 + + + +
645O HIS* 4.5 18.7 + + - -
648O ILE* 3.3 33.5 - - + +
649O GLU* 4.9 5.8 - - + -
652O LEU* 3.6 17.9 - - + +
664O MET* 3.4 29.6 - - + -
667O VAL* 3.6 22.0 - - + -
671O GLN* 4.0 3.8 - - - -
693O ASN* 3.2 30.7 - - - -
696O GLU* 4.9 0.7 - - - -
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Residues in contact with LYS 373 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
370I ALA 3.8 12.8 - - - +
371I SER 2.7 17.0 + - - +
372I TRP* 1.3 71.0 - - - +
374I GLN* 1.3 58.7 + - - +
377I GLU* 2.8 51.9 + - + +
381I LEU 5.9 3.1 - - - +
383I ALA* 5.1 11.4 - - + +
696O GLU* 3.3 27.6 + - - +
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Residues in contact with GLN 374 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
244I PHE* 5.0 8.9 - - - -
372I TRP* 3.5 31.8 - - + -
373I LYS* 1.3 75.9 - - - +
375I LYS* 1.3 67.9 + - - +
377I GLU* 5.2 1.1 - - - -
378I PRO* 3.3 19.9 - - - +
671O GLN* 3.6 14.6 + - - -
689O ALA* 4.3 24.6 - - + +
692O GLU* 4.2 21.5 - - + +
693O ASN* 3.8 13.0 + - - +
696O GLU* 4.2 2.9 + - - +
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Residues in contact with LYS 375 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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244I PHE* 4.0 25.2 - - + -
247I GLU* 3.5 31.9 + - + +
372I TRP* 3.3 32.9 + - + +
373I LYS 3.2 0.8 - - - -
374I GLN* 1.3 88.9 - - - +
376I TYR* 1.3 77.8 + - + +
378I PRO* 3.6 13.5 - - - +
379I LEU* 4.4 5.5 - - - +
645O HIS* 3.4 44.7 + - + +
671O GLN* 6.2 0.4 - - - +
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Residues in contact with TYR 376 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
247I GLU* 3.7 43.6 - - + +
250I ARG* 4.5 7.6 + - - -
251I MET* 4.8 0.7 - - + -
369I MET* 3.4 68.8 - - + +
370I ALA* 5.1 0.7 - - - -
372I TRP* 3.2 20.7 + + + +
375I LYS* 1.3 86.6 - - + +
377I GLU* 1.3 65.1 + - - +
378I PRO 3.3 0.7 - - - -
379I LEU* 3.2 27.4 + - + +
380I GLY 3.3 0.2 + - - -
381I LEU* 3.2 36.9 + - + +
649O GLU* 4.1 15.0 + - + +
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Residues in contact with GLU 377 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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373I LYS* 2.8 45.0 + - + +
374I GLN* 5.2 0.6 - - - -
376I TYR* 1.3 69.9 - - - +
378I PRO* 1.4 72.6 - - + +
379I LEU 3.1 0.4 - - - -
380I GLY* 2.8 20.9 + - - +
381I LEU 4.6 9.4 + - - +
543I VAL* 4.1 7.4 - - - +
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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