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InterPro: IPR008144 Guanylate kinase
Protein matches
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UniProtKB Matches: 2825 proteins |
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Accession
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IPR008144 Guanylate_kin |
Secondary
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IPR000619
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Type
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Domain |
Signatures
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InterPro Relationships
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Parent
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IPR008145 Guanylate kinase/L-type calcium channel
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Children
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IPR017665 Guanylate kinase, sub-group
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Found in
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IPR005417 Zona occludens protein
IPR005418 Zona occludens protein ZO-1
IPR005419 Zona occludens protein ZO-2
IPR005420 Zona occludens protein ZO-3
IPR016313 Membrane-associated guanylate kinase (MAGUK) scaffold protein
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Contains
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IPR019586 Guanylate kinase-associated, C-terminal
IPR020590 Guanylate kinase, conserved site
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InterPro annotation
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Entry Details in BioMart
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Abstract
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Guanylate kinase (EC:2.7.4.8) (GK) [1] catalyzes the ATP-dependent phosphorylation of GMP into GDP. It is essential for recycling GMP and indirectly, cGMP. In prokaryotes (such as Escherichia coli), lower eukaryotes
(such as yeast) and in vertebrates, GK is a highly conserved monomeric protein of about 200 amino acids. GK has been shown [2, 3, 4] to be structurally similar to protein A57R (or SalG2R) from various strains of Vaccinia virus.
Proteins containing one or more copies of the DHR domain, an SH3 domain as well as a C-terminal GK-like domain, are collectively termed MAGUKs (membrane-associated guanylate kinase homologs) [5], and
include Drosophila lethal(1)discs large-1 tumor suppressor protein (gene dlg1); mammalian tight junction protein Zo-1; a family of mammalian synaptic proteins that seem to interact with the cytoplasmic tail of NMDA receptor subunits (SAP90/PSD-95, CHAPSYN-110/PSD-93, SAP97/DLG1 and SAP102); vertebrate 55kDa erythrocyte membrane protein (p55); Caenorhabditis elegans protein lin-2; rat protein CASK; and human proteins DLG2 and DLG3. There is an ATP-binding site (P-loop) in the N-terminal section of GK, which is not conserved in the GK-like domain of the above proteins. However these proteins retain the residues known, in GK, to be involved in the binding of GMP.
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Structural links
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Database links
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Pfam Clan: CL0023.30
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Interactions
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This domain has been experimentally proven to be involved in Protein:Protein interactions. Representative
data is shown with the following
example proteins:
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Additional Reading
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Hible G, Renault L, Schaeffer F, Christova P, Zoe Radulescu A, Evrin C, Gilles AM, Cherfils J.
Calorimetric and crystallographic analysis of the oligomeric structure of Escherichia coli GMP kinase.
J. Mol. Biol. 352 2005 1044-59
[PubMed: 16140325]
http://dx.doi.org/10.1016/j.jmb.2005.07.042
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Hible G, Christova P, Renault L, Seclaman E, Thompson A, Girard E, Munier-Lehmann H, Cherfils J.
Unique GMP-binding site in Mycobacterium tuberculosis guanosine monophosphate kinase.
Proteins 62 2006 489-500
[PubMed: 16288457]
http://dx.doi.org/10.1002/prot.20662
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Brenman JE, Topinka JR, Cooper EC, McGee AW, Rosen J, Milroy T, Ralston HJ, Bredt DS.
Localization of postsynaptic density-93 to dendritic microtubules and interaction with microtubule-associated protein 1A.
J. Neurosci. 18 1998 8805-13
[PubMed: 9786987]
http://www.jneurosci.org/cgi/content/abstract/18/21/8805
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Vedadi M, Lew J, Artz J, Amani M, Zhao Y, Dong A, Wasney GA, Gao M, Hills T, Brokx S, Qiu W, Sharma S, Diassiti A, Alam Z, Melone M, Mulichak A, Wernimont A, Bray J, Loppnau P, Plotnikova O, Newberry K, Sundararajan E, Houston S, Walker J, Tempel W, Bochkarev A, Kozieradzki I, Edwards A, Arrowsmith C, Roos D, Kain K, Hui R.
Genome-scale protein expression and structural biology of Plasmodium falciparum and related Apicomplexan organisms.
Mol. Biochem. Parasitol. 151 2007 100-10
[PubMed: 17125854]
http://dx.doi.org/10.1016/j.molbiopara.2006.10.011
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Hible G, Daalova P, Gilles AM, Cherfils J.
Crystal structures of GMP kinase in complex with ganciclovir monophosphate and Ap5G.
Biochimie 88 2006 1157-64
[PubMed: 16690197]
http://dx.doi.org/10.1016/j.biochi.2006.04.002
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Scrima A, Vetter IR, Armengod ME, Wittinghofer A.
The structure of the TrmE GTP-binding protein and its implications for tRNA modification.
EMBO J. 24 2005 23-33
[PubMed: 15616586]
http://dx.doi.org/10.1038/sj.emboj.7600507
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