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PMID |
Sentence |
1 |
10198162
|
We subcloned human and mouse full-length cDNAs of a novel subtype of glutamine:fructose-6-phosphate amidotransferase (GFAT), which was designated GFAT2 (the previously reported GFAT was named GFAT1).
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2 |
10198162
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At the amino acid level, homologies between the human GFAT1 and GFAT2, between the mouse GFAT1 and GFAT2, and between the human GFAT2 and the mouse GFAT2 were 75.6, 74.7, and 97. 2%, respectively.
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3 |
10198162
|
Northern blot analysis using probe specific to human GFAT1 or GFAT2 showed that major transcripts were approximately 3.0 kb in both the human GFAT subtypes.
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4 |
10198162
|
The analysis also revealed different tissue distribution between GFAT1 and GFAT2: GFAT1 was more highly expressed in the placenta, pancreas, and testis than GFAT2; GFAT2 was expressed throughout the central nervous system, especially in the spinal cord, but GFAT1 expression was weak.
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5 |
10198162
|
We subcloned human and mouse full-length cDNAs of a novel subtype of glutamine:fructose-6-phosphate amidotransferase (GFAT), which was designated GFAT2 (the previously reported GFAT was named GFAT1).
|
6 |
10198162
|
At the amino acid level, homologies between the human GFAT1 and GFAT2, between the mouse GFAT1 and GFAT2, and between the human GFAT2 and the mouse GFAT2 were 75.6, 74.7, and 97. 2%, respectively.
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7 |
10198162
|
Northern blot analysis using probe specific to human GFAT1 or GFAT2 showed that major transcripts were approximately 3.0 kb in both the human GFAT subtypes.
|
8 |
10198162
|
The analysis also revealed different tissue distribution between GFAT1 and GFAT2: GFAT1 was more highly expressed in the placenta, pancreas, and testis than GFAT2; GFAT2 was expressed throughout the central nervous system, especially in the spinal cord, but GFAT1 expression was weak.
|
9 |
10198162
|
We subcloned human and mouse full-length cDNAs of a novel subtype of glutamine:fructose-6-phosphate amidotransferase (GFAT), which was designated GFAT2 (the previously reported GFAT was named GFAT1).
|
10 |
10198162
|
At the amino acid level, homologies between the human GFAT1 and GFAT2, between the mouse GFAT1 and GFAT2, and between the human GFAT2 and the mouse GFAT2 were 75.6, 74.7, and 97. 2%, respectively.
|
11 |
10198162
|
Northern blot analysis using probe specific to human GFAT1 or GFAT2 showed that major transcripts were approximately 3.0 kb in both the human GFAT subtypes.
|
12 |
10198162
|
The analysis also revealed different tissue distribution between GFAT1 and GFAT2: GFAT1 was more highly expressed in the placenta, pancreas, and testis than GFAT2; GFAT2 was expressed throughout the central nervous system, especially in the spinal cord, but GFAT1 expression was weak.
|
13 |
10198162
|
We subcloned human and mouse full-length cDNAs of a novel subtype of glutamine:fructose-6-phosphate amidotransferase (GFAT), which was designated GFAT2 (the previously reported GFAT was named GFAT1).
|
14 |
10198162
|
At the amino acid level, homologies between the human GFAT1 and GFAT2, between the mouse GFAT1 and GFAT2, and between the human GFAT2 and the mouse GFAT2 were 75.6, 74.7, and 97. 2%, respectively.
|
15 |
10198162
|
Northern blot analysis using probe specific to human GFAT1 or GFAT2 showed that major transcripts were approximately 3.0 kb in both the human GFAT subtypes.
|
16 |
10198162
|
The analysis also revealed different tissue distribution between GFAT1 and GFAT2: GFAT1 was more highly expressed in the placenta, pancreas, and testis than GFAT2; GFAT2 was expressed throughout the central nervous system, especially in the spinal cord, but GFAT1 expression was weak.
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17 |
11167021
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Glutamine:fructose-6-phosphate amidotransferase (GFAT) is the first and rate-limiting enzyme of the hexosamine biosynthesis pathway, which plays an important role in glucose toxicity and cellular insulin resistance.
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18 |
11167021
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Sequence analysis revealed several putative regulatory elements Sp1, a CCAAT box, AP-1 and AP-2, but no TATA box.
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19 |
11167021
|
Reporter assays using deletion and mutant variants suggested that the Sp1 sites at positions -83 to -78 and -22 to -17 both play an important role in the basal promoter activity of the mouse GFAT2 gene.
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20 |
11167021
|
We also compared the promoter activities of mouse GFAT1 and GFAT2 in several cell lines.
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21 |
11167021
|
Glutamine:fructose-6-phosphate amidotransferase (GFAT) is the first and rate-limiting enzyme of the hexosamine biosynthesis pathway, which plays an important role in glucose toxicity and cellular insulin resistance.
|
22 |
11167021
|
Sequence analysis revealed several putative regulatory elements Sp1, a CCAAT box, AP-1 and AP-2, but no TATA box.
|
23 |
11167021
|
Reporter assays using deletion and mutant variants suggested that the Sp1 sites at positions -83 to -78 and -22 to -17 both play an important role in the basal promoter activity of the mouse GFAT2 gene.
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24 |
11167021
|
We also compared the promoter activities of mouse GFAT1 and GFAT2 in several cell lines.
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25 |
11679416
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GFAT1 is ubiquitous, whereas GFAT2 is expressed mainly in the central nervous system.
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26 |
11679416
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Variations in the expression of GFAT isoforms in muscle may contribute to predisposition to insulin resistance.
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27 |
14764791
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Glutamine:fructose-6-phosphate amidotransferase (GFPT), the rate limiting enzyme in hexosamine biosynthesis, is encoded by the unlinked but highly homologous genes GFPT1 and GFPT2.
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28 |
15133036
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Phosphorylation of mouse glutamine-fructose-6-phosphate amidotransferase 2 (GFAT2) by cAMP-dependent protein kinase increases the enzyme activity.
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29 |
15133036
|
A protein encoded by a new gene with approximately 75% homology to glutamine-fructose-6-phosphate amidotransferase (GFAT) was termed GFAT2 on the basis of this similarity.
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30 |
15133036
|
The mouse GFAT2 cDNA was cloned, and the protein was expressed with either an N-terminal glutathione S-transferase or His tag.
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31 |
15133036
|
The protein sequence around the serine 202 of GFAT2 was conserved to the serine 205 of GFAT1, whereas the serine at 235 in GFAT1 was not present in GFAT2.
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32 |
15133036
|
Previously we showed that phosphorylation of serine 205 in GFAT1 by the catalytic subunit of cAMP-dependent protein kinase (PKA) inhibits its activity.
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33 |
15133036
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Like GFAT1, GFAT2 was phosphorylated by PKA, but GFAT2 activity increased approximately 2.2-fold by this modification.
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34 |
15133036
|
GFAT2 was modestly inhibited (15%) by UDP-GlcNAc but not through detectable O-glycosylation.
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35 |
15133036
|
GFAT2 is, therefore, an isoenzyme of GFAT1, but its regulation by cAMP is the opposite, allowing differential regulation of the hexosamine pathway in specialized tissues.
|
36 |
15133036
|
Phosphorylation of mouse glutamine-fructose-6-phosphate amidotransferase 2 (GFAT2) by cAMP-dependent protein kinase increases the enzyme activity.
|
37 |
15133036
|
A protein encoded by a new gene with approximately 75% homology to glutamine-fructose-6-phosphate amidotransferase (GFAT) was termed GFAT2 on the basis of this similarity.
|
38 |
15133036
|
The mouse GFAT2 cDNA was cloned, and the protein was expressed with either an N-terminal glutathione S-transferase or His tag.
|
39 |
15133036
|
The protein sequence around the serine 202 of GFAT2 was conserved to the serine 205 of GFAT1, whereas the serine at 235 in GFAT1 was not present in GFAT2.
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40 |
15133036
|
Previously we showed that phosphorylation of serine 205 in GFAT1 by the catalytic subunit of cAMP-dependent protein kinase (PKA) inhibits its activity.
|
41 |
15133036
|
Like GFAT1, GFAT2 was phosphorylated by PKA, but GFAT2 activity increased approximately 2.2-fold by this modification.
|
42 |
15133036
|
GFAT2 was modestly inhibited (15%) by UDP-GlcNAc but not through detectable O-glycosylation.
|
43 |
15133036
|
GFAT2 is, therefore, an isoenzyme of GFAT1, but its regulation by cAMP is the opposite, allowing differential regulation of the hexosamine pathway in specialized tissues.
|
44 |
15133036
|
Phosphorylation of mouse glutamine-fructose-6-phosphate amidotransferase 2 (GFAT2) by cAMP-dependent protein kinase increases the enzyme activity.
|
45 |
15133036
|
A protein encoded by a new gene with approximately 75% homology to glutamine-fructose-6-phosphate amidotransferase (GFAT) was termed GFAT2 on the basis of this similarity.
|
46 |
15133036
|
The mouse GFAT2 cDNA was cloned, and the protein was expressed with either an N-terminal glutathione S-transferase or His tag.
|
47 |
15133036
|
The protein sequence around the serine 202 of GFAT2 was conserved to the serine 205 of GFAT1, whereas the serine at 235 in GFAT1 was not present in GFAT2.
|
48 |
15133036
|
Previously we showed that phosphorylation of serine 205 in GFAT1 by the catalytic subunit of cAMP-dependent protein kinase (PKA) inhibits its activity.
|
49 |
15133036
|
Like GFAT1, GFAT2 was phosphorylated by PKA, but GFAT2 activity increased approximately 2.2-fold by this modification.
|
50 |
15133036
|
GFAT2 was modestly inhibited (15%) by UDP-GlcNAc but not through detectable O-glycosylation.
|
51 |
15133036
|
GFAT2 is, therefore, an isoenzyme of GFAT1, but its regulation by cAMP is the opposite, allowing differential regulation of the hexosamine pathway in specialized tissues.
|
52 |
15133036
|
Phosphorylation of mouse glutamine-fructose-6-phosphate amidotransferase 2 (GFAT2) by cAMP-dependent protein kinase increases the enzyme activity.
|
53 |
15133036
|
A protein encoded by a new gene with approximately 75% homology to glutamine-fructose-6-phosphate amidotransferase (GFAT) was termed GFAT2 on the basis of this similarity.
|
54 |
15133036
|
The mouse GFAT2 cDNA was cloned, and the protein was expressed with either an N-terminal glutathione S-transferase or His tag.
|
55 |
15133036
|
The protein sequence around the serine 202 of GFAT2 was conserved to the serine 205 of GFAT1, whereas the serine at 235 in GFAT1 was not present in GFAT2.
|
56 |
15133036
|
Previously we showed that phosphorylation of serine 205 in GFAT1 by the catalytic subunit of cAMP-dependent protein kinase (PKA) inhibits its activity.
|
57 |
15133036
|
Like GFAT1, GFAT2 was phosphorylated by PKA, but GFAT2 activity increased approximately 2.2-fold by this modification.
|
58 |
15133036
|
GFAT2 was modestly inhibited (15%) by UDP-GlcNAc but not through detectable O-glycosylation.
|
59 |
15133036
|
GFAT2 is, therefore, an isoenzyme of GFAT1, but its regulation by cAMP is the opposite, allowing differential regulation of the hexosamine pathway in specialized tissues.
|
60 |
15133036
|
Phosphorylation of mouse glutamine-fructose-6-phosphate amidotransferase 2 (GFAT2) by cAMP-dependent protein kinase increases the enzyme activity.
|
61 |
15133036
|
A protein encoded by a new gene with approximately 75% homology to glutamine-fructose-6-phosphate amidotransferase (GFAT) was termed GFAT2 on the basis of this similarity.
|
62 |
15133036
|
The mouse GFAT2 cDNA was cloned, and the protein was expressed with either an N-terminal glutathione S-transferase or His tag.
|
63 |
15133036
|
The protein sequence around the serine 202 of GFAT2 was conserved to the serine 205 of GFAT1, whereas the serine at 235 in GFAT1 was not present in GFAT2.
|
64 |
15133036
|
Previously we showed that phosphorylation of serine 205 in GFAT1 by the catalytic subunit of cAMP-dependent protein kinase (PKA) inhibits its activity.
|
65 |
15133036
|
Like GFAT1, GFAT2 was phosphorylated by PKA, but GFAT2 activity increased approximately 2.2-fold by this modification.
|
66 |
15133036
|
GFAT2 was modestly inhibited (15%) by UDP-GlcNAc but not through detectable O-glycosylation.
|
67 |
15133036
|
GFAT2 is, therefore, an isoenzyme of GFAT1, but its regulation by cAMP is the opposite, allowing differential regulation of the hexosamine pathway in specialized tissues.
|
68 |
15133036
|
Phosphorylation of mouse glutamine-fructose-6-phosphate amidotransferase 2 (GFAT2) by cAMP-dependent protein kinase increases the enzyme activity.
|
69 |
15133036
|
A protein encoded by a new gene with approximately 75% homology to glutamine-fructose-6-phosphate amidotransferase (GFAT) was termed GFAT2 on the basis of this similarity.
|
70 |
15133036
|
The mouse GFAT2 cDNA was cloned, and the protein was expressed with either an N-terminal glutathione S-transferase or His tag.
|
71 |
15133036
|
The protein sequence around the serine 202 of GFAT2 was conserved to the serine 205 of GFAT1, whereas the serine at 235 in GFAT1 was not present in GFAT2.
|
72 |
15133036
|
Previously we showed that phosphorylation of serine 205 in GFAT1 by the catalytic subunit of cAMP-dependent protein kinase (PKA) inhibits its activity.
|
73 |
15133036
|
Like GFAT1, GFAT2 was phosphorylated by PKA, but GFAT2 activity increased approximately 2.2-fold by this modification.
|
74 |
15133036
|
GFAT2 was modestly inhibited (15%) by UDP-GlcNAc but not through detectable O-glycosylation.
|
75 |
15133036
|
GFAT2 is, therefore, an isoenzyme of GFAT1, but its regulation by cAMP is the opposite, allowing differential regulation of the hexosamine pathway in specialized tissues.
|
76 |
15133036
|
Phosphorylation of mouse glutamine-fructose-6-phosphate amidotransferase 2 (GFAT2) by cAMP-dependent protein kinase increases the enzyme activity.
|
77 |
15133036
|
A protein encoded by a new gene with approximately 75% homology to glutamine-fructose-6-phosphate amidotransferase (GFAT) was termed GFAT2 on the basis of this similarity.
|
78 |
15133036
|
The mouse GFAT2 cDNA was cloned, and the protein was expressed with either an N-terminal glutathione S-transferase or His tag.
|
79 |
15133036
|
The protein sequence around the serine 202 of GFAT2 was conserved to the serine 205 of GFAT1, whereas the serine at 235 in GFAT1 was not present in GFAT2.
|
80 |
15133036
|
Previously we showed that phosphorylation of serine 205 in GFAT1 by the catalytic subunit of cAMP-dependent protein kinase (PKA) inhibits its activity.
|
81 |
15133036
|
Like GFAT1, GFAT2 was phosphorylated by PKA, but GFAT2 activity increased approximately 2.2-fold by this modification.
|
82 |
15133036
|
GFAT2 was modestly inhibited (15%) by UDP-GlcNAc but not through detectable O-glycosylation.
|
83 |
15133036
|
GFAT2 is, therefore, an isoenzyme of GFAT1, but its regulation by cAMP is the opposite, allowing differential regulation of the hexosamine pathway in specialized tissues.
|
84 |
22128088
|
Global protein O-GlcNAcylation and the main enzymes regulating O-GlcNAc, O-GlcNAc transferase (OGT), O-GlcNAcase (OGA), and glutamine-fructose-6-phosphate amidotransferase (GFAT) were measured by immunoblot and/or real-time RT-PCR analyses of left ventricular tissue from aortic stenosis (AS) patients and rat models of hypertension, myocardial infarction (MI), and aortic banding (AB), with and without failure.
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85 |
22128088
|
OGT, OGA, and GFAT2 protein and/or mRNA levels were increased by pressure overload, while neither was regulated by myocardial infarction.
|