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Welcome to Probe Database

The NCBI Probe Database is a public registry of nucleic acid reagents designed for use in a wide variety of biomedical research applications, together with information on reagent distributors, probe effectiveness, and computed sequence similarities.

Number of ProbeDB entries by experimental application.

Application Probes
Genotyping 7,402,392
Gene Expression 1,466,226
SNP Discovery 735,006
Genome Mapping 321,713
Gene Silencing 305,169

Number of ProbeDB entries by probe type.

Probe Types Probes
Sequence-specific Oligonucleotide (SSO) 4,803,379
Bead Microarray Element 2,472,601
TaqMan Gene Expression (TaqMan) 782,872
DNA Microarray Element (DNA microarray) 749,584
Resequencing Amplicon (RSA) 430,101
Long Range Primers (Long Range Primers) 302,920
Small Hairpin RNA (shRNA) 270,508
Simple Sequence Repeats (SSR) 251,425
Primer Set (primer set) 47,140
Sequence Tagged Site (STS) 39,355
Small Interfering RNA (siRNA) 30,852
Restriction Fragment Length Polymorphism (RFLP) 24,899
SNP Marker (SNP marker) 4,758
Ribonucleic Acid Probe (riboprobe) 3,769
In-situ Hybridization (ISH) 3,516
Overlapping Oligonucleotide (overgo) 3,328
Amplified Fragment Length Polymorphism (AFLP) 2,198
Double Stranded RNA (dsRNA) 2,133
Random Amplified Polymorphic DNA (RAPD) 1,739
Small Interfering RNA Pool (siRNA pool) 963
SYBR Green Primers (SYBR Green Primers) 960
Fluorescence In-situ Hybridization (FISH) 773
Cleaved Amplified Polymorphic Sequence (CAPS) 749
Circularization Probe (circularization probe) 543
Simple Sequence Length Polymorphism (SSLP) 485
Morpholine-linked Oligonucleotide (morpholino) 433
Single-Strand Conformation Polymorphisms (SSCP) 337
Endoribonuclease-prepared Small Interfering RNA (esiRNA) 245
Derived Cleaved Amplified Polymorphic Sequence (dCAPS) 72
Sequence Characterized Amplified Region (SCAR) 64
Antisense Oligodeoxynucleotide (antisense) 35
Multiplex Ligation-dependent Probe Amplification (MPLA probe) 31
EST-UTR (EST-UTR) 1

Total Number of Probes is 10,232,768 (Last updated on: 10/31/2009 00:19:42)