Contents
What is RefSeq accession number?
RefSeq records are distinguished from INSDC records by: Accession format: The most distinguishing feature of a RefSeq record is the distinct accession number format that begins with two characters followed by an underscore (e.g., NP_). INSDC accession numbers never include an underscore.
What is RefSeq RNA database?
The Reference Sequence (RefSeq) database is an open access, annotated and curated collection of publicly available nucleotide sequences (DNA, RNA) and their protein products.
What is RefSeq ID?
The RefSeq ID is a unique identifier given to a sequence in the NCBI RefSeq database. The RefSeq database is a curated, non-redundant set including genomic DNA contigs, mRNAs and proteins for known genes, and entire chromosomes.
What is meant by accession number?
An Accession Number (sometimes called a Document ID) is a unique number assigned by a particular database as an additional means of locating a specific article. Note that an Accession Number is distinct and unrelated to a document’s DOI number.
How do accession numbers work?
The first four digits in an accession number typically represent the year in which the object was given to the museums or was purchased. The numbers that follow (preceded by a period) refer to the order in which the object was added to the museums’ collections.
What is a primary accession number?
a) When two or more entries are merged, the accession numbers from all entries are kept. The first accession number is referred to as the ‘Primary (citable) accession number’, while the others are referred to as ‘Secondary accession numbers’.
Where can I find RefSeq non redundant protein Records?
Genomic records: Navigate to the nucleotide database to access, in Summary format, the set of RefSeq genomic sequences that include a CDS feature annotation which encodes the identical non-redundant protein record. Following the “Genomic records” link from WP_003547430.1 to NCBI’s Nucleotide resource returns 47 genomic records (as of March 2015).
What is the purpose of the RefSeq sequence collection?
The Reference Sequence (RefSeq) collection provides a comprehensive, integrated, non-redundant, well-annotated set of sequences, including genomic DNA, transcripts, and proteins. RefSeq sequences form a foundation for medical, functional, and diversity studies.
How are RefSeq transcripts and protein records generated?
RefSeq genomes are copies of selected assembled genomes available in GenBank. RefSeq transcript and protein records are generated by several processes including: Propagation from annotated genomes that are submitted to members of the International Nucleotide Sequence Database Collaboration (INSDC)
What are the accession prefixes for RefSeq Records?
These records use accession prefixes NM_, NR_, and NP_. RefSeq transcript and protein records for a subset of organisms, primarily mammals, are curated by NCBI staff. Curation is an ongoing process and some records have not been reviewed yet; the curation status is indicated on the RefSeq record in the COMMENT block.