| TNNI1

Troponin I, slow skeletal muscle is a protein that is encoded by the TNNI1 gene.It is a tissue-specific subtype of troponin I, which in turn is a part of the troponin complex.Gene TNNI1, troponin I type 1 (skeletal muscle, slow), also known as TNN1 and SSTNI, is located at 1q31.3 in the human chromosomal genome, encoding the slow twitch skeletal muscle isoform of troponin I (ssTnI), the inhibitory subunit of the troponin complex in striated muscle myofilaments.Human TNNI1 spans 12.5 kilobases in the genomic DNA and contains 9 exons and 8 introns.Exon 2 to exon 8 contain the coding sequences, encoding a protein of 21.7 kDa consisting of 187 amino acids including the first methionine with an isoelectric point (pI) of 9.59.
 

| Typical data

As the OD values of the standard curve may vary according to the conditions of the actual assay performance (e.g. operator, pipetting technique, wash technique or temperature effects), the operator should establish a standard curve for each test. Typical standard curve and data are provided below for reference only.

 

Concentration (pg/mL)	2000	1000	500	250	125	62.5	31.25	0
OD	2.53	1.84	1.13	0.67	0.4	0.3	0.22	0.08
Corrected OD	2.45	1.76	1.05	0.59	0.32	0.22	0.14	-

 

| Repeatability

Intra-assay Precision (Precision within an assay)：CV% < 10%; Inter-assay Precision (Precision between assays)：CV% < 10%
 

| Recovery

The recovery of Rat TNNI1 spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

 

Sample Type	Range(%)	Average Recovery(%)
Serum(n=8)	84-101	96
Plasma(n=8)	92-105	102

 

| Linearity

Samples were spiked with high concentrations of Rat TNNI1 and diluted with Universal Diluent to produce samples with values within the range of the assay.

 

		Serum(n=4)	Plasma(n=4)
1 : 2	Range (%)	84-95	87-96
	Average (%)	91	93
1 : 4	Range (%)	89-103	87-108
	Average (%)	94	98