Half-lives and Transcriptional Frequencies

Page 55 of 309

Gene

Expression Level
(Copies/Cell)

mRNA Half-life
(min)

Transcriptional
Frequency
(mRNAs/hr)

YPD Title Line™ ©2000 Proteome, Inc. Reprinted with permission. [last updated: 11/23/98]

INO2
0.3
15
0.9
Basic helix-loop-helix (bHLH) transcription factor required for derepression of phospholipid synthetic genes

INO4
0.7
16
1.5
Basic helix-loop-helix (bHLH) transcription factor involved in activation of phospholipid synthetic genes

INP51
0.6
16
1.3
Inositol polyphosphate-5-phosphatase

INP52
0.3
19
0.7
Inositol polyphosphate-5-phosphatase

INP53
0.8
24
1.2
Inositol polyphosphate 5-phosphatase

INP54
0.3
30
0.4
Inositol polyphosphate 5-phosphatase

IPL1
0.1
#N/A-nc
#N/A
Serine/threonine protein kinase of the mitotic spindle, involved in chromosome segregation

IPP1
12.3
36
12.7
Inorganic pyrophosphatase, cytoplasmic

IPT1
2.8
16
6.6
S.cerevisiae chromosome IV reading frame ORF YDR072c.

IQG1
0.8
30
0.9
Protein with similarity to mammalian IQGAP proteins, involved in cytokinesis

IRA1
0.8
#N/A-se
#N/A
GTPase-activating protein for Ras1p and Ras2p

IRA2
0.9
47
0.7
GTPase-activating protein for Ras1p and Ras2p

IRE1
0.3
10
1
Protein kinase and type I membrane protein involved in transmission of the unfolded protein response (UPR) from the ER lumen to nucleus, site-specific endoribonuclease that acts on the HAC1 mRNA transcript to remove an intron

IRR1
0.4
17
0.9
Protein involved in colony morphology and adhesion to solid supports

IRS4
0.1
21
0.2
Protein involved in silencing of ribosomal DNA

ISC10
0.2
13
0.8
Meiosis-specific protein required for spore formation

ISM1
0.2
11
0.8
Isoleucyl-tRNA synthetase of mitochondria

ISR1
0.4
26
0.7
Serine-threonine protein kinase, involved in staurosporine resistance

ISW1
0.6
14
1.4
Protein with strong similarity to Drosophila nucleosome remodeling factor ISWI

ISW2
0.8
17
1.6
Protein with strong similarity to Drosophila nucleosome remodeling factor ISWI

Gene	Expression Level (Copies/Cell)	mRNA Half-life (min)	Transcriptional Frequency (mRNAs/hr)	YPD Title Line™ ©2000 Proteome, Inc. Reprinted with permission. [last updated: 11/23/98]
INO2	0.3	15	0.9	Basic helix-loop-helix (bHLH) transcription factor required for derepression of phospholipid synthetic genes
INO4	0.7	16	1.5	Basic helix-loop-helix (bHLH) transcription factor involved in activation of phospholipid synthetic genes
INP51	0.6	16	1.3	Inositol polyphosphate-5-phosphatase
INP52	0.3	19	0.7	Inositol polyphosphate-5-phosphatase
INP53	0.8	24	1.2	Inositol polyphosphate 5-phosphatase
INP54	0.3	30	0.4	Inositol polyphosphate 5-phosphatase
IPL1	0.1	#N/A-nc	#N/A	Serine/threonine protein kinase of the mitotic spindle, involved in chromosome segregation
IPP1	12.3	36	12.7	Inorganic pyrophosphatase, cytoplasmic
IPT1	2.8	16	6.6	S.cerevisiae chromosome IV reading frame ORF YDR072c.
IQG1	0.8	30	0.9	Protein with similarity to mammalian IQGAP proteins, involved in cytokinesis
IRA1	0.8	#N/A-se	#N/A	GTPase-activating protein for Ras1p and Ras2p
IRA2	0.9	47	0.7	GTPase-activating protein for Ras1p and Ras2p
IRE1	0.3	10	1	Protein kinase and type I membrane protein involved in transmission of the unfolded protein response (UPR) from the ER lumen to nucleus, site-specific endoribonuclease that acts on the HAC1 mRNA transcript to remove an intron
IRR1	0.4	17	0.9	Protein involved in colony morphology and adhesion to solid supports
IRS4	0.1	21	0.2	Protein involved in silencing of ribosomal DNA
ISC10	0.2	13	0.8	Meiosis-specific protein required for spore formation
ISM1	0.2	11	0.8	Isoleucyl-tRNA synthetase of mitochondria
ISR1	0.4	26	0.7	Serine-threonine protein kinase, involved in staurosporine resistance
ISW1	0.6	14	1.4	Protein with strong similarity to Drosophila nucleosome remodeling factor ISWI
ISW2	0.8	17	1.6	Protein with strong similarity to Drosophila nucleosome remodeling factor ISWI

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