BA42

From Proteopedia

BA42 Protein from Bizionia argentinensis

Antarctic bacterium protein BA42 complex with Ca2+ ions (PDB code 4oa3) Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image Function Unknown Relevance Protein phosphatase from Bizionia argentinensis Structural highlights BA42 belongs to the TPM protein family from Pfam. The TPM domain family is named after the three founding proteins TLP18.3, Psb32 and MOLO-1. TPM domains have a characteristic fold composed of α helices (3+3[1] or 2+3[2]) flanking four central β strands. The TPM fold has not been found in other protein domains to date. TPM was previously referred to as "DUF477" and "Repair_PSII". In plants, the TPM domain-containing proteins TLP18.3 and Psb32 that have been implicated in the photosystem II (PSII) repair cycle. It may be involved in the regulation of synthesis/degradation of the D1 protein of the PSII core and in the assembly of PSII monomers into dimers in the grana stacks.[3] In the model nematode C. elegans, the MOLO-1 protein is an auxiliary subunit that positively modulates the gating of levamisole-sensitive acetylcholine receptors.[4] . Water molecules sre shown as red spheres. in Antarctic bacterium protein BA42 (PDB code 4oa3).[5]

3D structure of BA42

2lt2, 2mpb - BaBA42 - Bizonia argentinesis - NMR
4oa3 - BaBA42

References

1. ↑ Wu HY, Liu MS, Lin TP, Cheng YS. Structural and Functional Assays of AtTLP18.3 Identify Its Novel Acid Phosphatase Activity in Thylakoid Lumen. Plant Physiol. 2011 Sep 9. PMID:21908686 doi:10.1104/pp.111.184739
2. ↑ Eletsky A, Acton TB, Xiao R, Everett JK, Montelione GT, Szyperski T. Solution NMR structures reveal a distinct architecture and provide first structures for protein domain family PF04536. J Struct Funct Genomics. 2012 Mar;13(1):9-14. doi: 10.1007/s10969-011-9122-2., Epub 2011 Dec 24. PMID:22198206 doi:http://dx.doi.org/10.1007/s10969-011-9122-2
3. ↑ Sirpio S, Allahverdiyeva Y, Suorsa M, Paakkarinen V, Vainonen J, Battchikova N, Aro EM. TLP18.3, a novel thylakoid lumen protein regulating photosystem II repair cycle. Biochem J. 2007 Sep 15;406(3):415-25. PMID:17576201 doi:http://dx.doi.org/10.1042/BJ20070460
4. ↑ Boulin T, Rapti G, Briseno-Roa L, Stigloher C, Richmond JE, Paoletti P, Bessereau JL. Positive modulation of a Cys-loop acetylcholine receptor by an auxiliary transmembrane subunit. Nat Neurosci. 2012 Oct;15(10):1374-81. doi: 10.1038/nn.3197. Epub 2012 Aug 26. PMID:22922783 doi:http://dx.doi.org/10.1038/nn.3197
5. ↑ Aran M, Smal C, Pellizza L, Gallo M, Otero LH, Klinke S, Goldbaum FA, Ithurralde ER, Bercovich A, Mac Cormack WP, Turjanski AG, Cicero DO. Solution and crystal structure of BA42, a protein from the Antarctic bacterium Bizionia argentinensis comprised of a stand-alone TPM domain. Proteins. 2014 Aug 13. doi: 10.1002/prot.24667. PMID:25116514 doi:http://dx.doi.org/10.1002/prot.24667