The PPR motif - a TPR-related motif prevalent in plant organellar proteins.

By Ian Small, N. Peeters. TIBS -Trends in Biochemical Sciences. Regular ed, 2000

859 citations recorded by the source corpus.

Subfields: Biochemistry, Molecular Biology

View Paper: https://www.semanticscholar.org/paper/fb48b450c2b777d5947bfd75feef32807bc1ecdf

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Citations in the corpus

Coordination of gene expression between organellar and nuclear genomes (2008, neutral): “or protein–RNA interactions (pentatricopeptide repeat (PPR) motifs”
Interactions of Mitochondrial and Nuclear Genes That Affect Male Gametophyte Development (2004, methodology): “…consistently at three residues (boxed) compared with those residues (underlined) in the consensus of 1303 PPR motifs analyzed in Arabidopsis by Small and Peeters (2000). and examining the expression of the atp6/orf79 region in callus, they observed that a gene termed PPR8-1 results in…”
Fertility restorer locus Rf1 of sorghum (Sorghum bicolor L.) encodes a pentatricopeptide repeat protein not present in the colinear region of rice chromosome 12 (2005, background): “Small and Peeters (2000) coined the term PPR for the major motif based on its similarity to the better-known tetratricopeptide repeat, or TPR motif.”
Genome-Wide Analysis of Arabidopsis Pentatricopeptide Repeat Proteins Reveals Their Essential Role in Organelle Biogenesis (2004, methodology): “In contrast with PPR motifs that appear to be TPR-related motifs (Small and Peeters, 2000), the three C-terminal motifs do not resemble any previously described polypeptide motif.”
Comprehending crystalline β-carotene accumulation by comparing engineered cell models and the natural carotenoid-rich system of citrus (2011, neutral): “The PPR motif is a degenerate 35 amino acids repeat sequence that is found in animal, fungal, and plant proteins (Small and Peeters, 2000).”
Novel and Stress-Regulated MicroRNAs and Other Small RNAs from Arabidopsis (2004, background): “More than 400 genes encoding PPR proteins have been reported in Arabidopsis, and themajority are predicted to reside in either the chloroplast or mitochondrion (Small and Peeters, 2000).”
TPRpred: a tool for prediction of TPR-, PPR- and SEL1-like repeats from protein sequences (2007, background): “The repeating unit of TPRs, PPRs and SEL1-like repeats are formed of two or more stacked 34, 35 and 36-amino acid αα-hairpin repeat units, respectively [4-6].”
Novel and Mechanical Stress–Responsive MicroRNAs in Populus trichocarpa That Are Absent from Arabidopsisw⃞ (2005, background): “…and ptr-miR476 target seven PPRs (Figures 3 and 4), which belong to one of the largest plant protein families that are believed to be constitutively involved in the posttranscriptional regulation of organelle gene expression and RNA processing (Small and Peeters, 2000; Lurin et al., 2004).”
Functional Analysis of the RING-Type Ubiquitin Ligase Family of Arabidopsis1[w] (2005, background): “The PPR domain is present mainly in plant proteins (Small and Peeters, 2000), while the vWA, KISc, and Znf_ZZ domains are widely dispersed among different species (Ponting et al., 1996; Block, 1998; Whittaker and Hynes, 2002).”