The Central Dogma of Molecular Biology explains how genetic information is stored in DNA, transcribed into RNA, and translated into proteins. Explore DNA replication, transcription, RNA processing, translation, gene regulation, genetic mutations, and modern extensions of the Central Dogma.
RCC1 repeats form a distinctive beta-propeller structure in the RCC1 protein. This domain helps regulate Ran, a small GTP-binding protein involved in nuclear transport, chromosome organization, and cell division.
Metagenomic DNA extraction is a critical step in recovering microbial DNA from complex biological and environmental samples. Learn about extraction methods, cell lysis, purification, DNA quality control, contamination, extraction bias, and sequencing requirements.
Paralogs are homologous genes that arise through gene duplication. Learn how duplicated genes evolve, how paralogs differ from orthologs, and why they are important in comparative genomics and gene-family evolution.
Learn the GenBank submission process, including sequence preparation, metadata, annotation, validation, accession numbers, data release, and common submission mistakes.
Orthologs are homologous genes that diverged following speciation. Learn what orthologs are, how they differ from paralogs, and why they are important in comparative genomics, evolution, and genome annotation.
Homologs, orthologs, and paralogs describe different evolutionary relationships between genes. Learn how common ancestry, speciation, and gene duplication distinguish these important concepts in comparative genomics.
GenBank and RefSeq are important NCBI sequence resources with different purposes. Learn how their records, curation, redundancy, accession numbers, and applications differ.
Explore the history of GenBank through major database releases, from its early sequence records in 1982 to today’s massive collection of nucleotide sequence data.
GenBank, DDBJ, and ENA form the International Nucleotide Sequence Database Collaboration (INSDC). Learn how these databases exchange sequence data and maintain international standards.
GenBank has expanded dramatically with the growth of genome sequencing and high-throughput biology. Explore GenBank statistics, database size, sequence records, nucleotide bases, WGS and TSA data, and historical database growth.
GenBank is a continuously updated nucleotide sequence database. Learn how GenBank data quality, record updates, validation, database releases, and release statistics affect sequence analysis and reproducible research.
GenBank provides nucleotide sequence data that researchers use in comparative genomics to compare genes and genomes, identify conserved sequences, investigate genome evolution, study gene gain and loss, and analyze relationships among organisms.
BLASTN is a nucleotide sequence similarity-searching tool used to compare DNA and RNA-derived sequences with nucleotide databases. Learn how BLASTN works, how to evaluate matches, and how it is used with GenBank.
The Central Dogma of Molecular Biology explains how genetic information is stored in DNA, transcribed into RNA, and translated into proteins. Explore DNA replication, transcription, RNA processing, translation, gene regulation, genetic mutations, and modern extensions of the Central Dogma.
RCC1 repeats form a distinctive beta-propeller structure in the RCC1 protein. This domain helps regulate Ran, a small GTP-binding protein involved in nuclear transport, chromosome organization, and cell division.
Metagenomic DNA extraction is a critical step in recovering microbial DNA from complex biological and environmental samples. Learn about extraction methods, cell lysis, purification, DNA quality control, contamination, extraction bias, and sequencing requirements.
Paralogs are homologous genes that arise through gene duplication. Learn how duplicated genes evolve, how paralogs differ from orthologs, and why they are important in comparative genomics and gene-family evolution.
Learn the GenBank submission process, including sequence preparation, metadata, annotation, validation, accession numbers, data release, and common submission mistakes.
Orthologs are homologous genes that diverged following speciation. Learn what orthologs are, how they differ from paralogs, and why they are important in comparative genomics, evolution, and genome annotation.
Homologs, orthologs, and paralogs describe different evolutionary relationships between genes. Learn how common ancestry, speciation, and gene duplication distinguish these important concepts in comparative genomics.
GenBank and RefSeq are important NCBI sequence resources with different purposes. Learn how their records, curation, redundancy, accession numbers, and applications differ.
Explore the history of GenBank through major database releases, from its early sequence records in 1982 to today’s massive collection of nucleotide sequence data.
GenBank, DDBJ, and ENA form the International Nucleotide Sequence Database Collaboration (INSDC). Learn how these databases exchange sequence data and maintain international standards.
GenBank has expanded dramatically with the growth of genome sequencing and high-throughput biology. Explore GenBank statistics, database size, sequence records, nucleotide bases, WGS and TSA data, and historical database growth.
GenBank is a continuously updated nucleotide sequence database. Learn how GenBank data quality, record updates, validation, database releases, and release statistics affect sequence analysis and reproducible research.
GenBank provides nucleotide sequence data that researchers use in comparative genomics to compare genes and genomes, identify conserved sequences, investigate genome evolution, study gene gain and loss, and analyze relationships among organisms.
BLASTN is a nucleotide sequence similarity-searching tool used to compare DNA and RNA-derived sequences with nucleotide databases. Learn how BLASTN works, how to evaluate matches, and how it is used with GenBank.
