US5156956A
Expired / Lapsed
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Transgultaminase
Assignee: Ajinomoto Co Inc
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Filing: 1991-07-01
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Granted: 1992-10-20
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Expires: 2011-07-01
Abstract
Abstract A transglutaminase catalyzing an acyl transfer reaction of a γ-carboxyamide group of a glutamine residue in a peptide or protein chain in the absence of Ca 2+ .
Inventors
- 👤 Masao Motoki
- 👤 Atsushi Okiyama
- 👤 Masahiko Nonaka
- 👤 Haruo Tanaka
- 👤 Ryosuke Uchio
- 👤 Akira Matsuura
- 👤 Hiroyasu Ando
- 👤 Koichi Umeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:54
CPC Classifications
A; A23; A23L; A23L9/00; A23L9/20; A23L9/22; A23C; A23C19/00; A23C19/02; A23C19/032; A23C19/0328; A23C9/00; A23C9/12; A23C9/1203; A23C9/1216; A23L11/00; A23L11/40; A23L11/45; A23L13/00; A23L13/40; A23L13/48; A23L17/00; A23L17/65; A23L29/00; A23L29/06; A23L7/00; A23L7/10; A23L7/104; A23L7/107; C; C12; C12N; C12N9/00; C12N9/10; C12N9/1025; C12N9/104; C12N9/1044; C12Y; C12Y203/00; C12Y203/02; C12Y203/02013
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
27 words
A transglutaminase which catalyzes an acyl transfer reaction of a γ-carboxyamide group of a glutamine residue in a peptide or protein chain independently of Ca 2+ .
Claim 2
Dependent Claim
27 words
A transglutaminase which catalyzes an acyl transfer reaction of a γ-carboxyamide group of a glutamine residue in a peptide or protein chain independently of Ca 2+ .
Claim 3
Dependent Claim
13 words
The transglutaminase of claim 1, obtained from a microorganism of the genus Streptoverticillium.
Claim 4
Dependent Claim
56 words
A process for producing a transglutaminase, which comprises culturing a microorganism of a strain belonging to the genus Streptoverticillium capable of producing a transglutaminase which catalyzes an acyl transfer reaction of a γ-carboxyamide group of a glutamine residue in a peptide or protein chain independently of Ca 2+ , and harvesting said transglutaminase from the culture.
Claim 5
Dependent Claim
56 words
A process for producing a transglutaminase, which comprises culturing a microorganism of a strain belonging to the genus Streptoverticillium capable of producing a transglutaminase which catalyzes an acyl transfer reaction of a γ-carboxyamide group of a glutamine residue in a peptide or protein chain independently of Ca 2+ , and harvesting said transglutaminase from the culture.
Claim 6
Dependent Claim
66 words
A process for producing a protein gelation product, which comprises contacting a protein-containing solution or slurry having a protein concentration of at least 1.0 wt. % with a transglutaminase which catalyzes an acyl transfer reaction of a γ-carboxyamide group of a glutamine residue in a peptide or protein chain independently of Ca 3+ for a time sufficient to result in gelation of said solution or slurry.
Claim 7
Dependent Claim
66 words
A process for producing a protein gelation product, which comprises contacting a protein-containing solution or slurry having a protein concentration of at least 1.0 wt. % with a transglutaminase which catalyzes an acyl transfer reaction of a γ-carboxyamide group of a glutamine residue in a peptide or protein chain independently of Ca 3+ for a time sufficient to result in gelation of said solution or slurry.
Claim 8
Dependent Claim
29 words
A process as claimed in claim 4 wherein 0.01 to 2000 units of said transglutaminase are incorporated per 1.0 g of the protein contained in said solution or slurry.
Claim 9
Dependent Claim
14 words
The process of claim 4, wherein said transglutaminase is obtained from the genus Streptoverticillium.
References Cited (Backward Citations)
No citation records indexed.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1995-10-20 | 1996-04-20 | 1996-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-20 | 2000-04-20 | 2000-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-20 | 2004-04-20 | 2004-10-20 | $7700.00 | Window Closed / Lapsed |