CaBP Data Library General Information

S100A7/Psoriasin

Primary information about S100A7/psoriasin:
Basic chemical and physical information
Basic biological information
Basic genomic information
Metal ion binding constants
Interspecies sequence alignment
Information on function
Summary of structural studies
Information on the conformational change List of available structures Information about mutations
References about S100A7 Other web resources about S100A7

Basic Information

Additional names and abbreviations: No additional names are stored in the database
Isoforms: No information about isoforms is stored in the database
Yeast Protein Database Entries: No links to the YPD are stored in the database


Basic Chemical and Physical Information:
Number of amino acids: 100 (Homo sapiens) - 101 (Bos taurus)
View a list of all sources stored in the database
Molecular weight: 11.326 kD (Homo sapiens) - 11.544 kD (Bos taurus)
View a list of all sources stored in the database
pI: calculated pI (Homo sapiens) = 6.77 (InfoCard)
experimental pI (Homo sapiens) = 6.2 (InfoCard)
Number of functional calcium binding sites: Homo sapiens: 1 (InfoCard)
Macroscopic calcium binding constants: not yet available in the data library
Other metal binding constants: not yet available in the data library
Protein stability: not yet available in the data library
Post-translational modifications: not yet available in the data library


Basic Biological Information:
Source organisms: Bos taurus, Homo sapiens
View an annotated list of all sources stored in the database
Tissues: Homo sapiens: fetaltissues containing stratified epithelium (InfoCard)
Homo sapiens: adult keratinocytes (InfoCard)
Subcellular localization: not yet available in the data library
Regulation: not yet available in the data library


Genomic Information:
GenBank entries: View a list of GenBank entries stored in the database
Gene length: not yet available in the data library
Gene structure: not yet available in the data library
Promoter: not yet available in the data library
Gene copies: not yet available in the data library
Alleles: no alleles are currently stored in the data library
Chromosomal localization: Homo sapiens, expressed (GenBank code AF050167): q21 region of chromosome 1 (part of the cluster of S100 protein genes) (InfoCard)

Interspecies Sequence Alignment

not yet available in the data library


Functional Information:

General information:

Biological roles:

Disease states:

Target molecules:


Structural Information:

Calcium-coordination:
not yet available in the data library


Nature of the conformational changes:
Conformational change between one calcium ion bound and one zinc ion bound and one calcium ion bound states:
Asp 24 (which is part of the N-terminal EF-hand loop and binds zinc) turns away from the zinc-binding site and imposes a conformational change in the otherwise distorted EF-loop that causes it to resemble a calcium-bound loop. Thus, binding/release of zinc from the protein could have an impact on the calcium affinity.
(InfoCard)


Secondary structure:
(as reported in the PDB file and its accompanying reference)
not yet available in the data library


Additional structural information:


Available structures:
(follow the links from the PDB code to the retrieve the
PDB files)
Calcium Loaded Structures:
1PSR: Homo sapiens, homodimer, pH 8
Crystal structure, 1.05 angstrom resolution, R-value = 10.49, R-free = 14.12
1 Ca ion bound
(InfoCard)
Other Metal Bound Structures:
2PSR: Homo sapiens, homodimer, pH 6.7
Crystal structure, 2.05 angstrom resolution, R-value = 21.65, R-free = 26.45
1 Zn ion bound
1 Ca ion bound
(InfoCard)
3PSR: Homo sapiens, homodimer, zinc bound to monomer A only, pH 7.7
Crystal structure, 2.5 angstrom resolution, R-value = 22.3, R-free = 29.53
1 Zn ion bound
1 Ca ion bound
(InfoCard)

Information about mutants: