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EP0180964A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Recombinant DNA, microorganism transformed therewith, and process for producing human Cu-Zn superoxide dismutase using the transformed microorganism

Assignee: Ube Corp
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Filing: 1985-11-05
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Granted: —
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Expires: 2005-11-05
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Abstract

Abstract A recombinant DNA comprising a regulatory gene having a positive regulation site and joined downstream thereof, a human Cu-Zn superoxide dismutase structural gene, and a process for producing human Cu-Zn superoxide dismutase by cultivating a microorganism transformed with the recombinant DNA, and recovering the human Cu-Zn superoxide dismutase accumulated in the culture.

Inventors

  • 👤 Kumahara C/O Ube Research Laboratory Hiromi
  • 👤 Maruyama C/O Ube Research Laboratory Masao
  • 👤 Anpeiji C/O Ube Research Laboratory Shigeharu
  • 👤 Owa C/O Ube Research Laboratory Takuji

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-28 16:59
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/0004; C12N9/0089; C12N15/00; C12N15/09; C12N15/63; C12N15/70; C07; C07K; C07K2319/00

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 23 words
A recombinant DNA comprising a regulatory gene having a positive regulation site and joined downstream thereof, a human Cu-Zn superoxide dismutase structural gene.
Claim 2
Dependent Claim 23 words
A recombinant DNA comprising a regulatory gene having a positive regulation site and joined downstream thereof, a human Cu-Zn superoxide dismutase structural gene.
Claim 3
Dependent Claim 18 words
The recombinant DNA of claim 1 wherein the regulatory gene is the regulatory gene of colicin El gene.
Claim 4
Dependent Claim 34 words
The recombinant DNA of claim 1 or 2 wherein the codon for the N-terminus alanine of the human Cu-Zn superoxide dismutase structural gene exists immediately after the translation initiation codon of the regulatory gene.
Claim 5
Dependent Claim 29 words
The recombinant DNA of claim 1 or 2 wherein the human Cu-Zn superoxide dismutase structural gene is a complementary DNA derived from messenger RNA isolated from normal human tissues.
Claim 6
Dependent Claim 29 words
The recombinant DNA of claim 1 or 2 wherein the human Cu-Zn superoxide dismutase structural gene is a complementary DNA derived from messenger RNA isolated from the human placenta.
Claim 7
Dependent Claim 62 words
The recombinant DNA of claim 1 or 2 wherein the human Cu-Zn superoxide dismutase structural gene is a complementary DNA derived from messenger DNA separated from normal human tissues, and codons for some amino acids are replaced by codons which are frequently used in a host organism so long as the replacement does not alter the amino acid sequence of the DNA.
Claim 8
Dependent Claim 13 words
The recombinant DNA of claim 6 wherein the host organism is Escherichia coli.
Claim 9
Dependent Claim 21 words
The recombinant DNA of claim 1 or 2 wherein the human Cu-Zn superoxide dismutase structural gene has the following base sequence:
Claim 10
Dependent Claim 21 words
The recombinant DNA of claim 1 or 2 wherein the human Cu-Zn superoxide dismutase structural gene has the following base sequence:
Claim 11
Dependent Claim 27 words
A microorganism transformed with a recombinant DNA comprising a regulatory gene having a positive regulation site and joined downstream thereof, a human Cu-Zn superoxide dismutase structural gene.
Claim 12
Dependent Claim 27 words
A microorganism transformed with a recombinant DNA comprising a regulatory gene having a positive regulation site and joined downstream thereof, a human Cu-Zn superoxide dismutase structural gene.
Claim 13
Dependent Claim 12 words
ll. The microorganism of claim 10 wherein the microorganism is Escherichia coli.
Claim 14
Dependent Claim 49 words
A process for producing human Cu-Zn superoxide dismutase, which comprises cultivating a microorganism transformed with a recombinant DNA comprising a regulatory gene having a positive regulation site and joined downstream thereof, a human Cu-Zn superoxide dismutase structural gene; and recovering the human Cu-Zn superoxide dismutase accumulated in the culture.
Claim 15
Dependent Claim 49 words
A process for producing human Cu-Zn superoxide dismutase, which comprises cultivating a microorganism transformed with a recombinant DNA comprising a regulatory gene having a positive regulation site and joined downstream thereof, a human Cu-Zn superoxide dismutase structural gene; and recovering the human Cu-Zn superoxide dismutase accumulated in the culture.
Claim 16
Dependent Claim 21 words
The process of claim 12 wherein the regulatory gene in the recombinant DNA is the regulatory gene of colicin El gene.
Claim 17
Dependent Claim 13 words
The process of claim 12 or 13 wherein the microorganism is Escherichia coli.

References Cited (Backward Citations)

EP0138111B1 Cited

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