Abstract:
:The PEND protein is a DNA-binding protein in the inner envelope membrane of the developing chloroplast. It consists of a short pre-sequence, an N-terminal DNA-binding domain (cbZIP), a central repeat domain, and a C-terminal transmembrane domain. PEND homologs have been detected in various angiosperms, including Arabidopsis thaliana, Brassica napus, Medicago truncatula, cucumber and cherry. Monocot homologs have also been detected in barley and rice, but sequence conservation was low in monocots. PEND-related sequences have not been detected in non-flowering plants and algae. Green fluorescent protein fusions consisting of the N-terminal as well as full-length PEND homologs in A. thaliana and B. napus were targeted to chloroplasts, and localized to nucleoids and chloroplast periphery, respectively. Immunoblot analysis suggested that crucifer homologs were present in chloroplasts probably as a dimer, as in the case of pea. These results suggest that PEND protein is present in angiosperms, and the homologs in crucifers are functionally analogous to the PEND protein in pea.
journal_name
J Plant Resjournal_title
Journal of plant researchauthors
Terasawa K,Sato Ndoi
10.1007/s10265-005-0200-zsubject
Has Abstractpub_date
2005-04-01 00:00:00pages
111-9issue
2eissn
0918-9440issn
1618-0860journal_volume
118pub_type
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