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Streptomyces clavuligerus Higgens and Kastner


This strain of Streptomyces clavuligerus was isolated from soil in South America. This bacterium produces cephalosporins, clavulanic acid, and penicillin G benzylpenicillin.
Product category
Strain designation
[NRRL 3585]
Type strain
Isolation source
Soil, South America
Antibiotic production
Product format
Storage conditions
2°C to 8°C
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Biosafety Icon Biosafety Level 1

ATCC determines the biosafety level of a material based on our risk assessment as guided by the current edition of Biosafety in Microbiological and Biomedical Laboratories (BMBL), U.S. Department of Health and Human Services. It is your responsibility to understand the hazards associated with the material per your organization’s policies and procedures as well as any other applicable regulations as enforced by your local or national agencies.

ATCC highly recommends that appropriate personal protective equipment is always used when handling vials. For cultures that require storage in liquid nitrogen, it is important to note that some vials may leak when submersed in liquid nitrogen and will slowly fill with liquid nitrogen. Upon thawing, the conversion of the liquid nitrogen back to its gas phase may result in the vial exploding or blowing off its cap with dangerous force creating flying debris. Unless necessary, ATCC recommends that these cultures be stored in the vapor phase of liquid nitrogen rather than submersed in liquid nitrogen.

Detailed product information


Specific applications
Produces 5-(2-aminoadipyl)cysteinylvaline synthetase ACV synthetase
Produces cephalosporins
Produces clavulanic acid
Produces penicillin G benzylpenicillin
Produces penicillin N adicillin, cephalosporin N, isopenicillin N, synnematin B
Produces cephalosporin antibiotics 7-(5-amino-5-carboxyvaleramido)-3-carbamoyloxymethyl-3-cephem-4-carboxylic acid, and 7-(5-amino-5-carboxyvaleramido)-3-carbamoyloxymethyl -7-methoxy-3-cephem-4-carboxylic acid


Parent of ATCC 700751
Technical information
ATCC Technical Services does not have technical information on patent deposits that are not produced or characterized by ATCC. Additional information can be found in the corresponding patent available from the patent holder or with the U.S. and/or international patent office.

Handling information

Handling procedure
  1. Open vial according to enclosed instructions or visit for instructions.
  2. Rehydrate the entire pellet with approximately 0.5 mL of #1877 broth. Aseptically transfer the entire contents to a 5-6 mL tube of #1877 broth. Additional test tubes can be inoculated by transferring 0.5 mL of the primary broth tube to these secondary tubes.
  3. Use several drops of the primary broth tube to inoculate a #196 plate slant.
  4. Incubate at 30°C for 3-8 days.
Handling notes
Additional information on this culture is available on the ATCC® web site at


Deposited as
Streptomyces clavuligerus Higgens and Kastner
CE Higgens
Patent depository
This material was deposited with the ATCC Patent Depository to fulfill U.S. or international patent requirements. This material may not have been produced or characterized by ATCC.  As an International Depository Authority (IDA) for patent deposits, ATCC is required to complete viability testing only at time of initial deposit of patent material. Patent deposits are made available on behalf of the Depositor when the pertinent U.S. or international patent is issued, but material may not be used to infringe the patent claims.
Patent number
Type of isolate
Cross references
GenBank A38835 Sequence 2 from Patent WO9412654.
GenBank A39664 Sequence 1 from Patent WO9418326.
GenBank A42941 Sequence 2 from Patent WO9503416.
GenBank AJ000671 Streptomyces clavuligerus car and claR genes.
GenBank AJ001743 Streptomyces clavuligerus pcd, cmcT and pbp2 genes.
GenBank Z81324 S.clavuligerus ccaR and blp genes and open open reading frame.
GenBank AF038457 Streptomyces clavuligerus strain ATCC 27064 plasmid pSCL2 terminus.
GenBank L06213 Streptomyces clavuligerus clavaminate synthase 1 (cs1) gene, complete cds.
GenBank Z49111 Streptomyces clavuligerus arginine biosynthesis cluster (argCJBDRGH genes).
GenBank AJ238211 Streptomyces clavuligerus ORF1, encoding a protein involved in clavulanic acid biosynthesis.

Legal disclaimers

Intended use
This product is intended for laboratory research use only. It is not intended for any animal or human therapeutic use, any human or animal consumption, or any diagnostic use.

The product is provided 'AS IS' and the viability of ATCC® products is warranted for 30 days from the date of shipment, provided that the customer has stored and handled the product according to the information included on the product information sheet, website, and Certificate of Analysis. For living cultures, ATCC lists the media formulation and reagents that have been found to be effective for the product. While other unspecified media and reagents may also produce satisfactory results, a change in the ATCC and/or depositor-recommended protocols may affect the recovery, growth, and/or function of the product. If an alternative medium formulation or reagent is used, the ATCC warranty for viability is no longer valid.  Except as expressly set forth herein, no other warranties of any kind are provided, express or implied, including, but not limited to, any implied warranties of merchantability, fitness for a particular purpose, manufacture according to cGMP standards, typicality, safety, accuracy, and/or noninfringement.


This product is intended for laboratory research use only. It is not intended for any animal or human therapeutic use, any human or animal consumption, or any diagnostic use. Any proposed commercial use is prohibited without a license from ATCC.

While ATCC uses reasonable efforts to include accurate and up-to-date information on this product sheet, ATCC makes no warranties or representations as to its accuracy. Citations from scientific literature and patents are provided for informational purposes only. ATCC does not warrant that such information has been confirmed to be accurate or complete and the customer bears the sole responsibility of confirming the accuracy and completeness of any such information.

This product is sent on the condition that the customer is responsible for and assumes all risk and responsibility in connection with the receipt, handling, storage, disposal, and use of the ATCC product including without limitation taking all appropriate safety and handling precautions to minimize health or environmental risk. As a condition of receiving the material, the customer agrees that any activity undertaken with the ATCC product and any progeny or modifications will be conducted in compliance with all applicable laws, regulations, and guidelines. This product is provided 'AS IS' with no representations or warranties whatsoever except as expressly set forth herein and in no event shall ATCC, its parents, subsidiaries, directors, officers, agents, employees, assigns, successors, and affiliates be liable for indirect, special, incidental, or consequential damages of any kind in connection with or arising out of the customer's use of the product. While reasonable effort is made to ensure authenticity and reliability of materials on deposit, ATCC is not liable for damages arising from the misidentification or misrepresentation of such materials.

Please see the material transfer agreement (MTA) for further details regarding the use of this product. The MTA is available at

This material is cited in a US and/or international patent and may not be used to infringe the claims. Depending on the wishes of the Depositor, ATCC may be required to inform the Depositor of the party to which the material was furnished.

Permits & Restrictions

Import Permit for the State of Hawaii

If shipping to the U.S. state of Hawaii, you must provide either an import permit or documentation stating that an import permit is not required. We cannot ship this item until we receive this documentation. Contact the Hawaii Department of Agriculture (HDOA), Plant Industry Division, Plant Quarantine Branch to determine if an import permit is required.



Curated Citations

Luengo JM, et al. Cyclization of phenylacetyl-L-cysteinyl-D-valine to benzylpenicillin using cell-free extracts of Streptomyces clavuligerus. J. Antibiot. 39: 1144-1147, 1986. PubMed: 3759664

Baldwin JE, et al. Isolation and partial characterization of ACV synthetase from Cephalosporium acremonium and Streptomyces clavuligerus. Evidence for the presence of phosphopantothenate in ACV synthetase. J. Antibiot. 44: 241-248, 1991. PubMed: 2010361

Zhang J, Demain AL. Regulation of ACV synthetase activity in the beta-lactam biosynthetic pathway of carbon sources and their metabolites. Arch. Microbiol. 158: 364-369, 1992.

Howarth TT, et al. Antibiotics. US Patent 4,525,352 dated Jun 25 1985

Perez-Llarena FJ, et al. A regulatory gene (ccaR) required for cephamycin and clavulanic acid production in Strptomyces clavuligerus: amplification results in overproduction of both beta-Lactam compounds. J. Bacteriol. 179: 2053-2059, 1997. PubMed: 9068654

View All Curated Citations for this Product

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