The Structure of Jann_2411 (DUF1470) from Jannaschia Sp. at 1.45 Å Resolution Reveals a New Fold (the ABATE Domain) and Suggests Its Possible Role As a Transcription Regulator.
Acta crystallographica Section F, Structural biology and crystallization communications(2009)
Abstract
The crystal structure of Jann_2411 from Jannaschia sp. strain CCS1, a member of the Pfam PF07336 family classified as a domain of unknown function (DUF1470), was solved to a resolution of 1.45 Å by multiple-wavelength anomalous dispersion (MAD). This protein is the first structural representative of the DUF1470 Pfam family. Structural analysis revealed a two-domain organization, with the N-terminal domain presenting a new fold called the ABATE domain that may bind an as yet unknown ligand. The C-terminal domain forms a treble-clef zinc finger that is likely to be involved in DNA binding. Analysis of the Jann_2411 protein and the broader ABATE-domain family suggests a role as stress-induced transcriptional regulators.
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