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Genomic organization and tissue expression of the murine gene encoding the protein beta-aspartate methyltransferase. 1992

E A Romanik, and C A Ladino, and L C Killoy, and S C D'Ardenne, and C M O'Connor
Worcester Foundation for Experimental Biology, Shrewsbury, MA 01545.

Two overlapping clones containing the entire 684-nucleotide (nt) sequence encoding murine protein beta-aspartate methyltransferase (EC 2.1.1.77) were isolated from a genomic library. Partial nt sequence analysis of the two clones revealed that the protein carboxyl methyltransferase (PCMT)-encoding sequence is distributed among seven exons, ranging from 32 to 339 bp in length, within 25 kb of genomic DNA. Three exons correspond to regions of primary structure which are strongly conserved among a number of eukaryotic and prokaryotic enzymes which utilize S-adenosylmethionine (AdoMet) and S-adenosylhomocysteine (AdoHcy). The 5'-flanking region of the PCMT-encoding gene (PCMT) contains an 800-bp G+C-rich region with potential binding sites for transcription factor ETF, but lacks a TATA box and binding sites for other known transcription factors. Multiple PCMT mRNAs were detected on Northern blots of RNA extracted from murine brain, testis, liver and kidney. The overall abundance of PCMT mRNAs in each tissue paralleled the measured specific activity of the PCMT. Comparison of the genomic sequence information with the 3'-untranslated regions (UTRs) of two cDNA clones from a murine testis library indicated that PCMT mRNA precursors undergo alternative splicing. The structure and widespread expression of PCMT are characteristics of vertebrate housekeeping genes.

UI MeSH Term Description Entries
D008297 Male Males
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D011496 Protein Methyltransferases Enzymes that catalyze the methylation of amino acids after their incorporation into a polypeptide chain. S-Adenosyl-L-methionine acts as the methylating agent. EC 2.1.1. Protein Methylase,Protein Methylases,Protein Methyltransferase,Methylase, Protein,Methylases, Protein,Methyltransferase, Protein,Methyltransferases, Protein
D003001 Cloning, Molecular The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells. Molecular Cloning
D005091 Exons The parts of a transcript of a split GENE remaining after the INTRONS are removed. They are spliced together to become a MESSENGER RNA or other functional RNA. Mini-Exon,Exon,Mini Exon,Mini-Exons
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D012326 RNA Splicing The ultimate exclusion of nonsense sequences or intervening sequences (introns) before the final RNA transcript is sent to the cytoplasm. RNA, Messenger, Splicing,Splicing, RNA,RNA Splicings,Splicings, RNA
D012333 RNA, Messenger RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm. Messenger RNA,Messenger RNA, Polyadenylated,Poly(A) Tail,Poly(A)+ RNA,Poly(A)+ mRNA,RNA, Messenger, Polyadenylated,RNA, Polyadenylated,mRNA,mRNA, Non-Polyadenylated,mRNA, Polyadenylated,Non-Polyadenylated mRNA,Poly(A) RNA,Polyadenylated mRNA,Non Polyadenylated mRNA,Polyadenylated Messenger RNA,Polyadenylated RNA,RNA, Polyadenylated Messenger,mRNA, Non Polyadenylated

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