Basic Local Alignment Search Tool - BLAST
Jul 21, 2025 · BLAST finds regions of similarity between biological sequences. The program compares nucleotide or protein sequences to sequence databases and calculates the …
Home - Nucleotide - NCBI
The Nucleotide database is a collection of sequences from several sources, including GenBank, RefSeq, TPA and PDB. Genome, gene and transcript sequence data provide the foundation …
Nucleotide BLAST: Align two or more sequences using BLAST
Align Sequences Nucleotide BLAST BLASTN programs search nucleotide subjects using a nucleotide query. more...
GenBank Overview
Dec 8, 2022 · Search GenBank for sequence identifiers and annotations with Entrez Nucleotide. Search and align GenBank sequences to a query sequence using BLAST (Basic Local …
Download Sequence and Track Data - National Center for …
Mar 22, 2022 · You can download the FASTA formatted sequence of the visible range, all markers created on the sequence, or all selections made of the sequence. You can make a highlighted …
Nucleotide sequence of the iap gene, responsible for alkaline ...
We analyzed the 1,664-nucleotide sequence of a chromosomal DNA segment that contained the iap gene and its flanking regions. The predicted iap product contained 345 amino acids with an …
FASTA Format for Nucleotide Sequences
Jun 18, 2025 · The line after the FASTA definition line begins the nucleotide sequence. Unlike the FASTA definition line, the nucleotide sequence itself can contain returns. It is recommended …
HIV-1 vector pNL4-3, complete sequence - Nucleotide - NCBI
Finds sub-sequence or patterns in the sequence and highlights the matching region. The tool works with standard single letter nucleotide or protein codes including ambiguities and can …
Design PCR primers and check them for specificity
Enter the target sequence in FASTA format or an accession number of an NCBI nucleotide sequence in the PCR Template section of the form. If the NCBI mRNA reference sequence …
Transcription factor–DNA binding: beyond binding site motifs
Recent high-throughput studies have highlighted that there is more to TF–DNA binding than primary nucleotide sequence preferences. Accumulating evidence supports the widespread …