WELCOME!
to
IMGT/BlastSearch
THE INTERNATIONAL IMMUNOGENETICS INFORMATION SYSTEM®
Today is Wed, 01 Apr 2026
IMGT/BlastSearch Query
Version:
1.2.1
(2022/08/12)
Databases:
details
Search
Database
IMGT/LIGM-DB nucleotide sequences
IMGT/LIGM-DB nucleotide sequences (length >100 kb)
IMGT/GENE-DB nucleotide sequences (F+ORF+inframeP)
IMGT/GENE-DB nucleotide sequences (F+ORF+allP)
IMGT/2Dstructure-DB and IMGT/3Dstructure-DB amino acid chain sequences
IMGT/2Dstructure-DB amino acid chain sequences
IMGT/3Dstructure-DB amino acid chain sequences
IMGT/2Dstructure-DB and IMGT/3Dstructure-DB amino acid domain sequences
IMGT/DomainDisplay amino acid reference sequences
Program
Sequence(s) in
FASTA
Or file
Set subsequence
from
to
Algorithm options
Filter
Low complexity
Lookup table
Mask only
Expect
0.0001
0.01
1
10
100
1000
Matrix
PAM30
PAM70
BLOSUM80
BLOSUM62
BLOSUM45
(not for blastn)
Ungapped alignment
Perform
Frame shift penalty
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
25
30
50
1000
No OOF
(blastx only)
Query Genetic Codes
Standard (1)
Vertebrate Mitochondrial (2)
Yeast Mitochondrial (3)
Mold Mitochondrial; ... (4)
Invertebrate Mitochondrial (5)
Ciliate Nuclear; ... (6)
Echinoderm Mitochondrial (9)
Euplotid Nuclear (10)
Bacterial (11)
Alternative Yeast Nuclear (12)
Ascidian Mitochondrial (13)
Flatworm Mitochondrial (14)
Blepharisma Macronuclear (15)
(blastx only)
Database Genetic Codes
Standard (1)
Vertebrate Mitochondrial (2)
Yeast Mitochondrial (3)
Mold Mitochondrial; ... (4)
Invertebrate Mitochondrial (5)
Ciliate Nuclear; ... (6)
Echinoderm Mitochondrial (9)
Euplotid Nuclear (10)
Bacterial (11)
Alternative Yeast Nuclear (12)
Ascidian Mitochondrial (13)
Flatworm Mitochondrial (14)
Blepharisma Macronuclear (15)
(tblast[nx] only)
Display options
Graphical Overview
Descriptions
0
10
50
100
250
500
Alignments
0
10
50
100
250
500
Alignment view
Pairwise
master-slave with identities
master-slave without identities
flat master-slave with identities
flat master-slave without identities
BLAST XML
Hit Table
Color schema
No color schema
Color schema 1
Color schema 2
Color schema 3
Color schema 4
Color schema 5
Color schema 6
Other options
Advanced options
IMGT/BlastSearch Documentation
IMGT/BlastSearch Query
