Protein
DEAD-box ATP-dependent RNA helicase 3B, chloroplastic
Function
Nuclear genome-encoded factor involved in ribosome biogenesis in chloroplasts. Binds specific group II introns in chloroplasts and facilitates their splicing. Is required for rRNA maturation in plastids and may contribute to the assembly of the large (50S) ribosomal subunit. Required for normal development of chloroplasts.
Similarity
Belongs to the DEAD box helicase family. DDX21/DDX50 subfamily.
Sequence
MASLTLPALALALSNPGAVRLRAAAFRCWALRRRGWAAAGALASPNSVLSEHAFKRLQLGSDDEDGEGPYGSDADEGFEAGEGDNEELAIARLGLPDELVATLEKRGITHLFPIQRAVLIPALEGRDLIARAKTGTGKTLAFGIPMIKQLIEQDDGRITRRGRTPRVLVLAPTRELAKQVEKEIKESAPKLGTVCVYGGVSYNVQQNALSRGVDVVVGTPGRIIDLINGGSLQLGEVQYLVLDEADQMLAVGFEEDVETILQQLPAGRQSMLFSATMPSWVKKLSRRYLNNPLTIDLVGDQDEKLAEGIKLYAIPLTTTSKRTVLSDLITVYAKGGKTIVFTRTKKDADEVSLALTNSIASEALHGDISQHQRERTLNGFRQGKFTVLVATDVAARGLDIPNVDLIIHYELPNDPETFVHRSGRTGRAGKAGTAILMFTSSQKRTVKSLERDVGCNFEFISPPSIEEVLESSAEHVIATLRGVHPESTKYFLGAAEKLTEELGPHALASALAHLSGFSQPPSSRSLISHEQGWVTLQLTREQGFGRGFFSPRSVTGFLSDVCSAAADEVGKIYLTADENVQGAVFDLPEEIAKDLLTMELPPGNTLTKISKLPALQDDGPATDSYGRFSNDRGSRNNRRSRGGGASRGRGGWDTDGEDRFRRGGRSLRSDNDSWSDDDWSGGGRKSNRSSSFGSRSSSYSSRGSPSFGGRSSSFGGRESNRSFSGACFNCGESGHRATDCPNK