1sf0

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BACKBONE SOLUTION STRUCTURE OF MIXED ALPHA/BETA PROTEIN PF1061BACKBONE SOLUTION STRUCTURE OF MIXED ALPHA/BETA PROTEIN PF1061

Structural highlights

1sf0 is a 1 chain structure with sequence from Pyrococcus furiosus DSM 3638. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:Solution NMR
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT, TOPSAN

Function

SAMP2_PYRFU Functions as a protein modifier covalently attached to lysine residues of substrate proteins, as well as a sulfur carrier in tRNA thiolation. The protein modification process is termed sampylation and involves the formation of an isopeptide bond between the SAMP2 C-terminal glycine carboxylate and the epsilon-amino group of lysine residues on target proteins. Is able to form polymeric chains with itself likely at Lys-55, similar to ubiquitin and other ubiquitin-like proteins. May serve as a proteolytic signal in the cell to target proteins for degradation by proteasomes.[UniProtKB:D4GZE7][1]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

References

  1. Valafar H, Mayer KL, Bougault CM, LeBlond PD, Jenney FE Jr, Brereton PS, Adams MW, Prestegard JH. Backbone solution structures of proteins using residual dipolar couplings: application to a novel structural genomics target. J Struct Funct Genomics. 2004;5(4):241-54. PMID:15704012 doi:10.1007/s10969-005-4899-5
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