		Technical Data
F0019-58X3	FNTB, NT (Protein Farnesyltransferase Subunit beta, FTase-beta, CAAX Farnesyltransferase Subunit beta, RAS Proteins Prenyltransferase Subunit beta)

Description:
Eukaryotic cells contain 3 different types of prenyltransferases that attach either a farnesyl group (15 carbons) or a geranylgeranyl group (20 carbons) in thioether linkage to C-terminal cysteine residues in a variety of proteins. These posttranslational modifications provide a mechanism for membrane localization of proteins that lack a transmembrane domain. CAAX farnesyltransferase (FTase) attaches a farnesyl group from farnesyl pyrophosphate to cysteine residues at the fourth position from the C terminus of proteins that end in the CAAX box, where C is cysteine, A is usually but not always an aliphatic amino acid, and X is typically methionine or serine. This enzyme has the ability to farnesylate peptides as short as 4 residues in length that conform to the CAAX consensus sequence. The gene for the beta subunit of CAAX farnesyltransferase (FNTB) has been pinpointed to 14q23-q24 by Southern blot hybridization and PCR analyses of panels of human/Chinese hamster somatic cell hybrid lines and by fluorescence chromosomal in situ hybridization.

Applications:
Suitable for use in ELISA, Western Blot, and Immunohistochemistry. Other applications not tested.

Recommended Dilution:
ELISA: 1:1,000
Western Blot: 1:100-1:500
Immunohistochemistry: 1:50-1:100
Optimal dilutions to be determined by the researcher.

Storage and Stability:
May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

Type	Isotype	Clone	Grade
Pab	IgG		Affinity Purified

Size		Storage	Shipping	Source	Host
100ug		-20°C	Blue Ice	Human	Rabbit

Concentration:

~0.25mg/ml

Immunogen:

Synthetic peptide selected from the N-terminal region of human FNTB (KLH).

Purity:

Purified by Protein G affinity chromatography.

Form

Supplied as a liquid in PBS, 0.09% sodium azide.

Specificity:

Recognizes human FNTB.

Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.

1. Lobell, R.B., et al., Cancer Res. 61(24):8758-8768 (2001). 2. Wang, T., et al., Science 271(5252):1120-1122 (1996). 3. Andres, D.A., et al., Genomics 18(1):105-112 (1993). 4. Omer, C.A., et al., Biochemistry 32(19):5167-5176 (1993).