Cambio - Excellence in Molecular Biology

Chromosome Painting

Chromosome Painting: Human

Our range of human specific chromosome paints includes the Starfish Pan-centromeric probes, available with either a directly labelled FITC fluorochrome, Cy3 or with biotin. The latter allows the addition of any avidin or streptavidin-attached  fluorochrome of choice to be added by the customer.

Star*FISH© Human Whole Chromosome-Specific Probes ~ Biotin Labelled
Concentrated Format

Cambio's Whole chromosome- specific, pan-centromeric, centromic, Pan-telomeric, telomeric, arm and band specific paints

Cambio

Description

Cambio's Star*FISH© system provides an excellent method for the identification of single human chromosomes, and allows the detection of translocations and insertions on metaphase chromosomes. Marker chromosomes can also be identified and complex karyotypes analysed.

 

Probes are available for all chromosomes. To allow users to undertake more ambitious protocols, paints are now supplied in concentrated form with separate hybridisation buffer. This allows up to three paint colours to be used per sample with no loss of signal or specificity. The individual paints come in packs of 10 and 20 tests. Stability is guaranteed for 12 months, and many paints have shown no loss of potency after 5 years if stored at -20°C.

 

All Cambio paint systems for whole human chromosomes are now Cot-1 free. Ground breaking work by our collaborators in the University of Cambridge has resulted in competitor DNA-free painting. Our paints have good, if not better, specificities and signal intensities than Cot-1 containing paints, provided they are used with the optimised Star*FISH© protocols and detection reagents.



ALTechnologies whole chromosome probes labelled with digoxigenin (DIG) are now available from Cambio. Please note that for chromosomes 13, 14, 15, 21 and 22 only the 'q' arm is labelled. The probe DNA is constructed from microdissected normal human metaphase chromosome DNA, then directly amplified by PCR using a degenerate primer.




Paraffin Sections

 

Recently, a paraffin protocol has been devised for use of chromosome paints with paraffin sections.

 

Protocol Listings

If you cannot find the answer to your problem then please contact us or telephone +44 (0)1954 210 200

Protocols

The FISH protocol is divided into two stages. Denaturation and Hybridisation
are performed on day one. Washing and Detection are performed on day two.

The metaphase spreads are normally prepared a day in advance. On day one, the DNA of the chromosomes and paints is denatured and the Hybridisation process (reannealing) takes place overnight.

 

On day two the slides are washed to remove unbound DNA sequences followed by detection, counterstaining and mounting.

 

Day One - Denaturation & Hybridisation


Fluorescence in situ Hybridisation protocol

 

Day Two - Detection

 

Biotin Labelled Paints:

Biotin Labelled Chromosome detected with Cyanine 3 (1043-KB-50)

Biotin Labelled Chromosome detected with Cyanine 5 (1596-KC-50)

Biotin Labelled Chromosome detected with Texas Red (1082-KT-50)

Biotin Labelled Chromosome detected with FITC (1089-KB-50)

 

Dual colour labelling:

Biotin/Texas Red FITC detection: 1090-KD.pdf

Biotin/Cyanine 3 FITC detection 1597-KD.pdf

If you cannot find the answer to your problem then please contact us or telephone +44 (0)1954 210 200

Notes

Detection will be required for Biotin Labelled paints

 

FITC Labelled paints may require amplification depending on user experience and samples.

 

Please note: Probes,detection kits and amplification kits are sold separately

If you cannot find the answer to your problem then please contact us or telephone +44 (0)1954 210 200