Eintrag weiter verarbeiten
Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum
Gespeichert in:
| Zeitschriftentitel: | Biochemical Journal |
|---|---|
| Personen und Körperschaften: | , , , , , , , , |
| In: | Biochemical Journal, 306, 1995, 3, S. 801-809 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Portland Press Ltd.
|
| Schlagwörter: |
| author_facet |
Shakur, Y Wilson, M Pooley, L Lobban, M Griffiths, S L Campbell, A M Beattie, J Daly, C Houslay, M D Shakur, Y Wilson, M Pooley, L Lobban, M Griffiths, S L Campbell, A M Beattie, J Daly, C Houslay, M D |
|---|---|
| author |
Shakur, Y Wilson, M Pooley, L Lobban, M Griffiths, S L Campbell, A M Beattie, J Daly, C Houslay, M D |
| spellingShingle |
Shakur, Y Wilson, M Pooley, L Lobban, M Griffiths, S L Campbell, A M Beattie, J Daly, C Houslay, M D Biochemical Journal Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum Cell Biology Molecular Biology Biochemistry |
| author_sort |
shakur, y |
| spelling |
Shakur, Y Wilson, M Pooley, L Lobban, M Griffiths, S L Campbell, A M Beattie, J Daly, C Houslay, M D 0264-6021 1470-8728 Portland Press Ltd. Cell Biology Molecular Biology Biochemistry http://dx.doi.org/10.1042/bj3060801 <jats:p>An antiserum was generated against a dodecapeptide whose sequence is found at the C-terminus of a cyclic AMP (cAMP)-specific, type-IVA phosphodiesterase encoded by the rat ‘dunc-like’ cyclic AMP phosphodiesterase (RD1) cDNA. This antiserum identified a single approximately 73 kDa protein species upon immunoblotting of cerebellum homogenates. This species co-migrated upon SDS/PAGE with a single immunoreactive species observed in COS cells transfected with the cDNA for RD1. Native RD1 in cerebellum was found to be predominantly (approximately 93%) membrane-associated and could be found in isolated synaptosome populations, in particular those enriched in post-synaptic densities. Fractionation of lysed synaptosomes on sucrose density gradients identified RD1 as co-migrating with the plasma membrane marker 5′-nucleotidase. Laser scanning confocal and digital deconvolution immunofluorescence studies done on intact COS cells transfected with RD1 cDNA showed RD1 to be predominantly localized to plasma membranes but also associated with the Golgi apparatus and intracellular vesicles. RD1-specific antisera immunoprecipitated phosphodiesterase activity from solubilized cerebellum membranes. This activity had the characteristics expected of the type-IV cAMP phosphodiesterase RD1 in that it was cAMP specific, exhibited a low Km cAMP of 2.3 microM, high sensitivity to inhibition by 4-[3-(cyclopentoxyl)-4-methoxyphenyl]-2-pyrrolidone (rolipram) (Ki approximately 0.7 microM) and was unaffected by Ca2+/calmodulin and low concentrations of cyclic GMP. The phosphodiesterase activities of RD1 solubilized from both cerebellum and transfected COS cell membranes showed identical first-order thermal denaturation kinetics at 50 degrees C. Native RD1 from cerebellum was shown to be an integral protein in that it was solubilized using the non-ionic detergent Triton X-100 but not by either re-homogenization or high NaCl concentrations. The observation that hydroxylamine was unable to cause the release of RD1 from either cerebellum or COS membranes and that [3H]palmitate was not incorporated into the RD1 protein immunoprecipitated from COS cells transfected with RD1 cDNA, indicated that RD1 was not anchored by N-terminal acylation. The engineered deletion of the 25 residues forming the unique N-terminal domain of RD1 caused both a profound increase in its activity (approximately 2-fold increase in Vmax) and a profound change in intracellular distribution. Thus, immunofluorescence studies identified the N-terminal truncated species as occurring exclusively ion the cytosol of transfected COS cells. The cDNA for RD1 thus appears to encode a native full-length type-IVA phosphodiesterase that is expressed in cerebellum.(ABSTRACT TRUNCATED AT 400 WORDS)</jats:p> Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum Biochemical Journal |
| doi_str_mv |
10.1042/bj3060801 |
| facet_avail |
Online Free |
| finc_class_facet |
Biologie Chemie und Pharmazie |
| format |
ElectronicArticle |
| fullrecord |
blob:ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA0Mi9iajMwNjA4MDE |
| id |
ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA0Mi9iajMwNjA4MDE |
| institution |
DE-Pl11 DE-Rs1 DE-105 DE-14 DE-Ch1 DE-L229 DE-D275 DE-Bn3 DE-Brt1 DE-D161 DE-Zwi2 DE-Gla1 DE-Zi4 DE-15 |
| imprint |
Portland Press Ltd., 1995 |
| imprint_str_mv |
Portland Press Ltd., 1995 |
| issn |
0264-6021 1470-8728 |
| issn_str_mv |
0264-6021 1470-8728 |
| language |
English |
| mega_collection |
Portland Press Ltd. (CrossRef) |
| match_str |
shakur1995identificationandcharacterizationofthetypeivacyclicampspecificphosphodiesteraserd1asamembraneboundproteinexpressedincerebellum |
| publishDateSort |
1995 |
| publisher |
Portland Press Ltd. |
| recordtype |
ai |
| record_format |
ai |
| series |
Biochemical Journal |
| source_id |
49 |
| title |
Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum |
| title_unstemmed |
Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum |
| title_full |
Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum |
| title_fullStr |
Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum |
| title_full_unstemmed |
Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum |
| title_short |
Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum |
| title_sort |
identification and characterization of the type-iva cyclic amp-specific phosphodiesterase rd1 as a membrane-bound protein expressed in cerebellum |
| topic |
Cell Biology Molecular Biology Biochemistry |
| url |
http://dx.doi.org/10.1042/bj3060801 |
| publishDate |
1995 |
| physical |
801-809 |
| description |
<jats:p>An antiserum was generated against a dodecapeptide whose sequence is found at the C-terminus of a cyclic AMP (cAMP)-specific, type-IVA phosphodiesterase encoded by the rat ‘dunc-like’ cyclic AMP phosphodiesterase (RD1) cDNA. This antiserum identified a single approximately 73 kDa protein species upon immunoblotting of cerebellum homogenates. This species co-migrated upon SDS/PAGE with a single immunoreactive species observed in COS cells transfected with the cDNA for RD1. Native RD1 in cerebellum was found to be predominantly (approximately 93%) membrane-associated and could be found in isolated synaptosome populations, in particular those enriched in post-synaptic densities. Fractionation of lysed synaptosomes on sucrose density gradients identified RD1 as co-migrating with the plasma membrane marker 5′-nucleotidase. Laser scanning confocal and digital deconvolution immunofluorescence studies done on intact COS cells transfected with RD1 cDNA showed RD1 to be predominantly localized to plasma membranes but also associated with the Golgi apparatus and intracellular vesicles. RD1-specific antisera immunoprecipitated phosphodiesterase activity from solubilized cerebellum membranes. This activity had the characteristics expected of the type-IV cAMP phosphodiesterase RD1 in that it was cAMP specific, exhibited a low Km cAMP of 2.3 microM, high sensitivity to inhibition by 4-[3-(cyclopentoxyl)-4-methoxyphenyl]-2-pyrrolidone (rolipram) (Ki approximately 0.7 microM) and was unaffected by Ca2+/calmodulin and low concentrations of cyclic GMP. The phosphodiesterase activities of RD1 solubilized from both cerebellum and transfected COS cell membranes showed identical first-order thermal denaturation kinetics at 50 degrees C. Native RD1 from cerebellum was shown to be an integral protein in that it was solubilized using the non-ionic detergent Triton X-100 but not by either re-homogenization or high NaCl concentrations. The observation that hydroxylamine was unable to cause the release of RD1 from either cerebellum or COS membranes and that [3H]palmitate was not incorporated into the RD1 protein immunoprecipitated from COS cells transfected with RD1 cDNA, indicated that RD1 was not anchored by N-terminal acylation. The engineered deletion of the 25 residues forming the unique N-terminal domain of RD1 caused both a profound increase in its activity (approximately 2-fold increase in Vmax) and a profound change in intracellular distribution. Thus, immunofluorescence studies identified the N-terminal truncated species as occurring exclusively ion the cytosol of transfected COS cells. The cDNA for RD1 thus appears to encode a native full-length type-IVA phosphodiesterase that is expressed in cerebellum.(ABSTRACT TRUNCATED AT 400 WORDS)</jats:p> |
| container_issue |
3 |
| container_start_page |
801 |
| container_title |
Biochemical Journal |
| container_volume |
306 |
| format_de105 |
Article, E-Article |
| format_de14 |
Article, E-Article |
| format_de15 |
Article, E-Article |
| format_de520 |
Article, E-Article |
| format_de540 |
Article, E-Article |
| format_dech1 |
Article, E-Article |
| format_ded117 |
Article, E-Article |
| format_degla1 |
E-Article |
| format_del152 |
Buch |
| format_del189 |
Article, E-Article |
| format_dezi4 |
Article |
| format_dezwi2 |
Article, E-Article |
| format_finc |
Article, E-Article |
| format_nrw |
Article, E-Article |
| _version_ |
1792342288963207173 |
| geogr_code |
not assigned |
| last_indexed |
2024-03-01T16:33:23.303Z |
| geogr_code_person |
not assigned |
| openURL |
url_ver=Z39.88-2004&ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fvufind.svn.sourceforge.net%3Agenerator&rft.title=Identification+and+characterization+of+the+type-IVA+cyclic+AMP-specific+phosphodiesterase+RD1+as+a+membrane-bound+protein+expressed+in+cerebellum&rft.date=1995-03-15&genre=article&issn=1470-8728&volume=306&issue=3&spage=801&epage=809&pages=801-809&jtitle=Biochemical+Journal&atitle=Identification+and+characterization+of+the+type-IVA+cyclic+AMP-specific+phosphodiesterase+RD1+as+a+membrane-bound+protein+expressed+in+cerebellum&aulast=Houslay&aufirst=M+D&rft_id=info%3Adoi%2F10.1042%2Fbj3060801&rft.language%5B0%5D=eng |
| SOLR | |
| _version_ | 1792342288963207173 |
| author | Shakur, Y, Wilson, M, Pooley, L, Lobban, M, Griffiths, S L, Campbell, A M, Beattie, J, Daly, C, Houslay, M D |
| author_facet | Shakur, Y, Wilson, M, Pooley, L, Lobban, M, Griffiths, S L, Campbell, A M, Beattie, J, Daly, C, Houslay, M D, Shakur, Y, Wilson, M, Pooley, L, Lobban, M, Griffiths, S L, Campbell, A M, Beattie, J, Daly, C, Houslay, M D |
| author_sort | shakur, y |
| container_issue | 3 |
| container_start_page | 801 |
| container_title | Biochemical Journal |
| container_volume | 306 |
| description | <jats:p>An antiserum was generated against a dodecapeptide whose sequence is found at the C-terminus of a cyclic AMP (cAMP)-specific, type-IVA phosphodiesterase encoded by the rat ‘dunc-like’ cyclic AMP phosphodiesterase (RD1) cDNA. This antiserum identified a single approximately 73 kDa protein species upon immunoblotting of cerebellum homogenates. This species co-migrated upon SDS/PAGE with a single immunoreactive species observed in COS cells transfected with the cDNA for RD1. Native RD1 in cerebellum was found to be predominantly (approximately 93%) membrane-associated and could be found in isolated synaptosome populations, in particular those enriched in post-synaptic densities. Fractionation of lysed synaptosomes on sucrose density gradients identified RD1 as co-migrating with the plasma membrane marker 5′-nucleotidase. Laser scanning confocal and digital deconvolution immunofluorescence studies done on intact COS cells transfected with RD1 cDNA showed RD1 to be predominantly localized to plasma membranes but also associated with the Golgi apparatus and intracellular vesicles. RD1-specific antisera immunoprecipitated phosphodiesterase activity from solubilized cerebellum membranes. This activity had the characteristics expected of the type-IV cAMP phosphodiesterase RD1 in that it was cAMP specific, exhibited a low Km cAMP of 2.3 microM, high sensitivity to inhibition by 4-[3-(cyclopentoxyl)-4-methoxyphenyl]-2-pyrrolidone (rolipram) (Ki approximately 0.7 microM) and was unaffected by Ca2+/calmodulin and low concentrations of cyclic GMP. The phosphodiesterase activities of RD1 solubilized from both cerebellum and transfected COS cell membranes showed identical first-order thermal denaturation kinetics at 50 degrees C. Native RD1 from cerebellum was shown to be an integral protein in that it was solubilized using the non-ionic detergent Triton X-100 but not by either re-homogenization or high NaCl concentrations. The observation that hydroxylamine was unable to cause the release of RD1 from either cerebellum or COS membranes and that [3H]palmitate was not incorporated into the RD1 protein immunoprecipitated from COS cells transfected with RD1 cDNA, indicated that RD1 was not anchored by N-terminal acylation. The engineered deletion of the 25 residues forming the unique N-terminal domain of RD1 caused both a profound increase in its activity (approximately 2-fold increase in Vmax) and a profound change in intracellular distribution. Thus, immunofluorescence studies identified the N-terminal truncated species as occurring exclusively ion the cytosol of transfected COS cells. The cDNA for RD1 thus appears to encode a native full-length type-IVA phosphodiesterase that is expressed in cerebellum.(ABSTRACT TRUNCATED AT 400 WORDS)</jats:p> |
| doi_str_mv | 10.1042/bj3060801 |
| facet_avail | Online, Free |
| finc_class_facet | Biologie, Chemie und Pharmazie |
| format | ElectronicArticle |
| format_de105 | Article, E-Article |
| format_de14 | Article, E-Article |
| format_de15 | Article, E-Article |
| format_de520 | Article, E-Article |
| format_de540 | Article, E-Article |
| format_dech1 | Article, E-Article |
| format_ded117 | Article, E-Article |
| format_degla1 | E-Article |
| format_del152 | Buch |
| format_del189 | Article, E-Article |
| format_dezi4 | Article |
| format_dezwi2 | Article, E-Article |
| format_finc | Article, E-Article |
| format_nrw | Article, E-Article |
| geogr_code | not assigned |
| geogr_code_person | not assigned |
| id | ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA0Mi9iajMwNjA4MDE |
| imprint | Portland Press Ltd., 1995 |
| imprint_str_mv | Portland Press Ltd., 1995 |
| institution | DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1, DE-D161, DE-Zwi2, DE-Gla1, DE-Zi4, DE-15 |
| issn | 0264-6021, 1470-8728 |
| issn_str_mv | 0264-6021, 1470-8728 |
| language | English |
| last_indexed | 2024-03-01T16:33:23.303Z |
| match_str | shakur1995identificationandcharacterizationofthetypeivacyclicampspecificphosphodiesteraserd1asamembraneboundproteinexpressedincerebellum |
| mega_collection | Portland Press Ltd. (CrossRef) |
| physical | 801-809 |
| publishDate | 1995 |
| publishDateSort | 1995 |
| publisher | Portland Press Ltd. |
| record_format | ai |
| recordtype | ai |
| series | Biochemical Journal |
| source_id | 49 |
| spelling | Shakur, Y Wilson, M Pooley, L Lobban, M Griffiths, S L Campbell, A M Beattie, J Daly, C Houslay, M D 0264-6021 1470-8728 Portland Press Ltd. Cell Biology Molecular Biology Biochemistry http://dx.doi.org/10.1042/bj3060801 <jats:p>An antiserum was generated against a dodecapeptide whose sequence is found at the C-terminus of a cyclic AMP (cAMP)-specific, type-IVA phosphodiesterase encoded by the rat ‘dunc-like’ cyclic AMP phosphodiesterase (RD1) cDNA. This antiserum identified a single approximately 73 kDa protein species upon immunoblotting of cerebellum homogenates. This species co-migrated upon SDS/PAGE with a single immunoreactive species observed in COS cells transfected with the cDNA for RD1. Native RD1 in cerebellum was found to be predominantly (approximately 93%) membrane-associated and could be found in isolated synaptosome populations, in particular those enriched in post-synaptic densities. Fractionation of lysed synaptosomes on sucrose density gradients identified RD1 as co-migrating with the plasma membrane marker 5′-nucleotidase. Laser scanning confocal and digital deconvolution immunofluorescence studies done on intact COS cells transfected with RD1 cDNA showed RD1 to be predominantly localized to plasma membranes but also associated with the Golgi apparatus and intracellular vesicles. RD1-specific antisera immunoprecipitated phosphodiesterase activity from solubilized cerebellum membranes. This activity had the characteristics expected of the type-IV cAMP phosphodiesterase RD1 in that it was cAMP specific, exhibited a low Km cAMP of 2.3 microM, high sensitivity to inhibition by 4-[3-(cyclopentoxyl)-4-methoxyphenyl]-2-pyrrolidone (rolipram) (Ki approximately 0.7 microM) and was unaffected by Ca2+/calmodulin and low concentrations of cyclic GMP. The phosphodiesterase activities of RD1 solubilized from both cerebellum and transfected COS cell membranes showed identical first-order thermal denaturation kinetics at 50 degrees C. Native RD1 from cerebellum was shown to be an integral protein in that it was solubilized using the non-ionic detergent Triton X-100 but not by either re-homogenization or high NaCl concentrations. The observation that hydroxylamine was unable to cause the release of RD1 from either cerebellum or COS membranes and that [3H]palmitate was not incorporated into the RD1 protein immunoprecipitated from COS cells transfected with RD1 cDNA, indicated that RD1 was not anchored by N-terminal acylation. The engineered deletion of the 25 residues forming the unique N-terminal domain of RD1 caused both a profound increase in its activity (approximately 2-fold increase in Vmax) and a profound change in intracellular distribution. Thus, immunofluorescence studies identified the N-terminal truncated species as occurring exclusively ion the cytosol of transfected COS cells. The cDNA for RD1 thus appears to encode a native full-length type-IVA phosphodiesterase that is expressed in cerebellum.(ABSTRACT TRUNCATED AT 400 WORDS)</jats:p> Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum Biochemical Journal |
| spellingShingle | Shakur, Y, Wilson, M, Pooley, L, Lobban, M, Griffiths, S L, Campbell, A M, Beattie, J, Daly, C, Houslay, M D, Biochemical Journal, Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum, Cell Biology, Molecular Biology, Biochemistry |
| title | Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum |
| title_full | Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum |
| title_fullStr | Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum |
| title_full_unstemmed | Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum |
| title_short | Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum |
| title_sort | identification and characterization of the type-iva cyclic amp-specific phosphodiesterase rd1 as a membrane-bound protein expressed in cerebellum |
| title_unstemmed | Identification and characterization of the type-IVA cyclic AMP-specific phosphodiesterase RD1 as a membrane-bound protein expressed in cerebellum |
| topic | Cell Biology, Molecular Biology, Biochemistry |
| url | http://dx.doi.org/10.1042/bj3060801 |