M. J. Roth

Characterization of chimeras between the ecotropic Moloney murine leukemia virus and the amphotropic 4070A envelope proteins.

Peredo, C, O'Reilly, L, Gray, K, Roth, M J

A series of 22 chimeric envelope (env) genes were generated between the ecotropic Moloney murine leukemia virus and the amphotropic 4070A isolate. The chimeric envelopes were expressed within the...

Coordinated disintegration reactions mediated by Moloney murine leukemia virus integrase.

Donzella, G A, Jonsson, C B, Roth, M J

The protein-DNA and protein-protein interactions important for function of the integrase (IN) protein of Moloney murine leukemia virus (M-MuLV) were investigated by using a coordinated-disintegration...

Functional domains of Moloney murine leukemia virus integrase defined by mutation and complementation analysis.

Jonsson, C B, Donzella, G A, Gaucan, E, Smith, C M, Roth, M J

Retroviral integrases perform two catalytic steps, 3' processing and strand transfer, that result in the stable insertion of the retroviral DNA into the host genome. Mutant M-MuLV integrases were...

Contributions of DNA polymerase subdomains to the RNase H activity of human immunodeficiency virus type 1 reverse transcriptase.

Smith, J S, Gritsman, K, Roth, M J

Previous studies showed that an isolated human immunodeficiency virus type 1 (HIV-1) RNase H domain expressed as a fusion protein is highly active in Mn2+, but activity was dependent on a...

Mutational analysis of the envelope gene of Moloney murine leukemia virus.

Gray, K D, Roth, M J

The env gene products of Moloney murine leukemia virus are required for binding and entry of the virus into the target cell. Thirty-three linker insertion mutations were constructed throughout the...

Purification and characterization of an active human immunodeficiency virus type 1 RNase H domain.

Smith, J S, Roth, M J

We have expressed and purified from Escherichia coli a human immunodeficiency virus type 1 (HIV-1) RNase H domain consisting of amino acids 400 to 560 of reverse transcriptase with either an N- or...

Role of the His-Cys finger of Moloney murine leukemia virus integrase protein in integration and disintegration.

Jonsson, C B, Roth, M J

Retroviral integrases mediate site-specific endonuclease and transesterification reactions in the absence of exogenous energy. The basis for the sequence specificity in these integrase-viral DNA...

Influence of substrate structure on disintegration activity of Moloney murine leukemia virus integrase.

Donzella, G A, Jonsson, C B, Roth, M J

The disintegration activity of Moloney murine leukemia virus (M-MuLV) integrase (IN) was investigated through structural and sequence modifications of a Y substrate that resembles an integration...

Mutational analysis of the carboxyl terminus of the Moloney murine leukemia virus integration protein.

Roth, M J

The integration protein (IN) is required for retrovirus DNA integration into the host DNA. The function of the C terminus of the Moloney murine leukemia virus IN protein was examined. The terminal 28...

Mutational analysis of the N-linked glycosylation sites of the SU envelope protein of Moloney murine leukemia virus.

Felkner, R H, Roth, M J

The role of the N-linked glycosylation sites in the major envelope glycoprotein, SU (gp70), of Moloney murine leukemia virus has been examined. By using site-specific oligonucleotide-directed...

Analysis of mutations in the integration function of Moloney murine leukemia virus: effects on DNA binding and cutting.

Roth, M J, Schwartzberg, P, Tanese, N, Goff, S P

The 3' terminus of the pol gene of Moloney murine leukemia virus encodes the integration (IN) protein, required for the establishment of the integrated provirus. A series of six linker insertion...

Analysis of long terminal repeat circle junctions of human immunodeficiency virus type 1.

Smith, J S, Kim, S Y, Roth, M J

Circle junctions of unintegrated human immunodeficiency virus type 1 strain IIIB were analyzed after polymerase chain reaction amplification. Among the 28 colonies sequenced, eight unique circle...

Analysis of retroviral pol gene products with antisera raised against fusion proteins produced in Escherichia coli.

Tanese, N, Roth, M J, Goff, S P

Portions of the pol gene of Moloney murine leukemia virus (MuLV) were expressed as fusion proteins in Escherichia coli, and the purified proteins were used to elicit antibodies in Escherichia coli,...

Characterization of chimeras between the ecotropic Moloney murine leukemia virus and the amphotropic 4070A envelope proteins.

Peredo, C, O'Reilly, L, Gray, K, Roth, M J

A series of 22 chimeric envelope (env) genes were generated between the ecotropic Moloney murine leukemia virus and the amphotropic 4070A isolate. The chimeric envelopes were expressed within the...

Coordinated disintegration reactions mediated by Moloney murine leukemia virus integrase.

Donzella, G A, Jonsson, C B, Roth, M J

The protein-DNA and protein-protein interactions important for function of the integrase (IN) protein of Moloney murine leukemia virus (M-MuLV) were investigated by using a coordinated-disintegration...

Functional domains of Moloney murine leukemia virus integrase defined by mutation and complementation analysis.

Jonsson, C B, Donzella, G A, Gaucan, E, Smith, C M, Roth, M J

Retroviral integrases perform two catalytic steps, 3' processing and strand transfer, that result in the stable insertion of the retroviral DNA into the host genome. Mutant M-MuLV integrases were...

Contributions of DNA polymerase subdomains to the RNase H activity of human immunodeficiency virus type 1 reverse transcriptase.

Smith, J S, Gritsman, K, Roth, M J

Previous studies showed that an isolated human immunodeficiency virus type 1 (HIV-1) RNase H domain expressed as a fusion protein is highly active in Mn2+, but activity was dependent on a...

Mutational analysis of the envelope gene of Moloney murine leukemia virus.

Gray, K D, Roth, M J

The env gene products of Moloney murine leukemia virus are required for binding and entry of the virus into the target cell. Thirty-three linker insertion mutations were constructed throughout the...

Purification and characterization of an active human immunodeficiency virus type 1 RNase H domain.

Smith, J S, Roth, M J

We have expressed and purified from Escherichia coli a human immunodeficiency virus type 1 (HIV-1) RNase H domain consisting of amino acids 400 to 560 of reverse transcriptase with either an N- or...

Role of the His-Cys finger of Moloney murine leukemia virus integrase protein in integration and disintegration.

Jonsson, C B, Roth, M J

Retroviral integrases mediate site-specific endonuclease and transesterification reactions in the absence of exogenous energy. The basis for the sequence specificity in these integrase-viral DNA...

Influence of substrate structure on disintegration activity of Moloney murine leukemia virus integrase.

Donzella, G A, Jonsson, C B, Roth, M J

The disintegration activity of Moloney murine leukemia virus (M-MuLV) integrase (IN) was investigated through structural and sequence modifications of a Y substrate that resembles an integration...

Mutational analysis of the carboxyl terminus of the Moloney murine leukemia virus integration protein.

Roth, M J

The integration protein (IN) is required for retrovirus DNA integration into the host DNA. The function of the C terminus of the Moloney murine leukemia virus IN protein was examined. The terminal 28...

Mutational analysis of the N-linked glycosylation sites of the SU envelope protein of Moloney murine leukemia virus.

Felkner, R H, Roth, M J

The role of the N-linked glycosylation sites in the major envelope glycoprotein, SU (gp70), of Moloney murine leukemia virus has been examined. By using site-specific oligonucleotide-directed...

Analysis of mutations in the integration function of Moloney murine leukemia virus: effects on DNA binding and cutting.

Roth, M J, Schwartzberg, P, Tanese, N, Goff, S P

The 3' terminus of the pol gene of Moloney murine leukemia virus encodes the integration (IN) protein, required for the establishment of the integrated provirus. A series of six linker insertion...

Analysis of long terminal repeat circle junctions of human immunodeficiency virus type 1.

Smith, J S, Kim, S Y, Roth, M J

Circle junctions of unintegrated human immunodeficiency virus type 1 strain IIIB were analyzed after polymerase chain reaction amplification. Among the 28 colonies sequenced, eight unique circle...

Analysis of retroviral pol gene products with antisera raised against fusion proteins produced in Escherichia coli.

Tanese, N, Roth, M J, Goff, S P

Portions of the pol gene of Moloney murine leukemia virus (MuLV) were expressed as fusion proteins in Escherichia coli, and the purified proteins were used to elicit antibodies in Escherichia coli,...

Increased gelatinase A (MMP-2) and cathepsin B activity in invasive tumor regions of human colon cancer samples.

Emmert-Buck, M. R., Roth, M. J., Zhuang, Z., Campo, E., Rozhin, J., Sloane, B. F., ...

Gelatinase A (MMP-2) and cathepsin B are proteinases which have been proposed to participate in human tumor invasion and metastasis. Precise quantitation of the activity of these enzymes in invading...

Histological precursors of oesophageal squamous cell carcinoma: results from a 13 year prospective follow up study in a high risk population

Wang, G-Q, Abnet, C C, Shen, Q, Lewin, K J, Sun, X-D, Roth, M J, ...

Background: Oesophageal squamous cell carcinoma (OSCC) has a very poor prognosis, which is largely due to late diagnosis. Successful early detection strategies will require identification of...

Risk factors for oesophageal squamous dysplasia in adult inhabitants of a high risk region of China

Wei, W-Q, Abnet, C C, Lu, N, Roth, M J, Wang, G-Q, Dye, B A, ...

Background: Oesophageal squamous cell carcinoma (OSCC) is a common cancer worldwide and has a very high mortality rate. Squamous dysplasia is the precursor lesion for OSCC and it can be seen during...