Plant plastidial gene
Location of the matK gene in the chloroplast genome of Arabidopsis thaliana . matK is one of the protein-coding genes involved in functions other than photosynthetic reactions (red boxes). matK maps at the 2–3.5 kb coordinates.
Maturase K (matK) is a plant plastidial gene .[ 1] The protein it encodes is an organelle intron maturase, a protein that splices Group II introns . It is essential for in vivo splicing of Group II introns.[ 2] Amongst other maturases, this protein retains only a well conserved domain X and remnants of a reverse transcriptase domain.[ 3]
Universal matK primers can be used for DNA barcoding of angiosperms .[ 4]
^ Zoschke R, Nakamura M, Liere K, Sugiura M, Börner T, Schmitz-Linneweber C (February 2010). "An organellar maturase associates with multiple group II introns" . Proceedings of the National Academy of Sciences of the United States of America . 107 (7): 3245–50. Bibcode :2010PNAS..107.3245Z . doi :10.1073/pnas.0909400107 . PMC 2840290 . PMID 20133623 .
^ Ahlert D, Piepenburg K, Kudla J, Bock R (July 2006). "Evolutionary origin of a plant mitochondrial group II intron from a reverse transcriptase/maturase-encoding ancestor". Journal of Plant Research . 119 (4): 363–71. Bibcode :2006JPlR..119..363A . doi :10.1007/s10265-006-0284-0 . PMID 16763758 . S2CID 8277547 .
^ Mohr G, Perlman PS, Lambowitz AM (November 1993). "Evolutionary relationships among group II intron-encoded proteins and identification of a conserved domain that may be related to maturase function" . Nucleic Acids Research . 21 (22): 4991–7. doi :10.1093/nar/21.22.4991 . PMC 310608 . PMID 8255751 .
^ Jing YU, Jian-Hua XU, Shi-Liang ZH (May 2011). "New universal matK primers for DNA barcoding angiosperms" . Journal of Systematics and Evolution . 49 (3): 176–81. doi :10.1111/j.1759-6831.2011.00134.x . S2CID 86349548 .