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pMXs-Puro Retroviral Expression Vector

Catalog Number: RTV-012

Cloning capacity = 4.4 kb Frequently Asked Questions about packaging Retrovirus General FAQs about Viral Gene Delivery

S-Adenosylhomocysteine (SAH) ELISA Kit

Catalog Number: MET-5151

Detection sensitivity limit of 0.2 µM SAH Suitable for use with plasma, serum, lysates, and other biological fluid samples SAH standard included Video: Color Development in an ELISA

S-Adenosylmethionine (SAM) ELISA Kit

Catalog Number: MET-5152

Detection sensitivity limit of 0.625 nM SAM Suitable for use with plasma, serum, lysates, and other biological fluid samples SAM standard included Video: Color Development in an ELISA

S-Adenosylmethionine (SAM) and S-Adenosylhomocysteine (SAH) ELISA Combo Kit

Catalog Number: MET-5151-C

Detection sensitivity limit of 0.2 µM SAH and 0.625 nM SAM Suitable for use with plasma, serum, lysates, and other biological fluid samples SAH and SAM standards included Video: Color Development in an ELISA

Glutamate Assay Kits

Catalog Number: STA-674, MET-5080

Detection sensitivity limit of 6.25 µM (colorimetric format) or 0.3 µM (fluorometric format) Suitable for use with lysates, cell culture supernatants, serum, plasma, and urine Glutamate standard included

Hydroxyproline Assay Kit

Catalog Number: STA-675

Suitable for use with serum, plasma, lysates, and urine samples Detection sensitivity limit of approximately 47.5 µM hydroxyproline Hydroxyproline standard included

L-Amino Acid Assay Kits

Catalog Number: MET-5054, MET-5055

Measure only free L-amino acids (except glycine); does not detect peptides or proteins Detection sensitivity limit of 62.5 µM (colorimetric) or 6.25 µM (fluorometric) Suitable for use with lysates, serum, plasma, urine, and food samples L-Alanine standard included

Branched Chain Amino Acid Assay Kit

Catalog Number: MET-5056

Measures only free branched chain amino acids; does not detect peptides or proteins Detection sensitivity limit of 15.6 µM Suitable for use with lysates, serum, plasma, urine, and food samples L-Leucine standard included

Folic Acid ELISA Kit

Catalog Number: MET-5068, MET-5068-5

Detection sensitivity limit of 24 pg/mL Suitable for use with plasma, serum, and lysates Folic acid standard included Video: Color Development in an ELISA

Glycine Assay Kit

Catalog Number: MET-5070

Detection sensitivity limit of 1.56 µM glycine Suitable for use with lysates, serum, plasma, saliva and urine Glycine standard included Measures only free glycine; will not detect glycine in peptides or proteins

Tyrosine Assay Kit

Catalog Number: MET-5073

Detection sensitivity limit of 15.6 µM free tyrosine Suitable for use with lysates, serum, plasma, saliva and urine Tyrosine standard included

Alanine Assay Kit

Catalog Number: MET-5093

Detection sensitivity limit of 7.8 µM in a standard colorimetric plate reader Suitable for use with lysates, serum, plasma, urine, cell lysates and culture supernatants L-Alanine standard included NOTE: Each sample replicate requires 2 assays for proper data calculation.

Indole Assay Kit

Catalog Number: MET-5122

Detect indole concentration as low as 31 µM Suitable for urine, fecal samples, and bacterial cultures Indole standard included

Alanine Aminotransferase (ALT) Assays

Catalog Number: MET-5123, MET-5124

Measure ALT activity from serum, plasma, cell or tissue lysates Colorimetric and fluorometric plate-based detection formats ALT positive control included

Aspartate Aminotransferase (AST) Assay Kit

Catalog Number: MET-5127

Suitable for use with tissue lysates, cell suspensions, serum and plasma Includes glutamate standard and AST positive control

Lysine Assay Kits

Catalog Number: MET-5130, MET-5129

Detect lysine concentrations as low as 1.56 µM Suitable for serum, plasma, urine, saliva, cell or tissue lysates Lysine standard included for quantitation of unknown samples 96-well colorimetric and fluorometric formats

Alpha-Ketoglutarate Assay Kits

Catalog Number: MET-5131, MET-5132

96-well colorimetric or fluorometric detection formats Detect concentrations as low as 4 µM (colorimetric) or 0.2 µM (fluorometric) Suitable for serum, plasma, cell suspensions, and tissue homogenates Alpha-ketoglutarate standard provided for quantitation of unknown samples

D-Amino Acid Assay Kits

Catalog Number: MET-5136, MET-5137

Measure only free D-amino acids (except D-Glutamate and D-Aspartate); does not detect peptides or proteins Detection sensitivity limit of 1.56 µM Suitable for use with lysates, serum, plasma, urine, and food samples D-Alanine standard included

Methionine Assay Kit

Catalog Number: MET-5158

Detection sensitivity limit of approximately 1.5 µM Methionine Suitable for use with lysates, serum, plasma, urine and culture supernatants Methionine standard included NOTE: Each sample replicate requires 2 assays for proper data calculation.

Glutamine Assay Kits

Catalog Number: MET-5165, MET-5166

Detection sensitivity limit of 3.13 µM (colorimetric format) or 1.56 µM (fluorometric format) Suitable for use with lysates, cell culture supernatants, serum, plasma, and urine L-Glutamine standard included NOTE: Each sample replicate requires 2 assays for proper data calculation.