Antibiotics

It is originally isolated from Str. sp. DO-15. Kapurimycin A1 can resist gram-positive bacteria and a few gram-negative bacteria.

It is originally isolated from Str. sp. DO-15. Kapurimycin A2 can resist gram-positive bacteria and a few gram-negative bacteria.

It is originally isolated from Str. sp. DO-15. Kapurimycin A3 can resist gram-positive bacteria and a few gram-negative bacteria.

Karalicin is produced by the strain of Pseudomonus fluorescens/putida SS-3. It inhibits herpes simplex virus HSV-1, HSV-2, vaccinia virus, polio virus type I with the IC50 (μg/mL) of 0.004, 0.008, 0.016 and 0.016.

Katanosin A is a peptide antibiotic originally isolated from Cytophaga sp. PBJ-5356. It has anti-gram-positive bacterial effect.

Lysobactin, also known as katanosin B, is a potent antibiotic with in vivo efficacy against Staphylococcus aureus and Streptococcus pneumoniae. It was previously shown to inhibit peptidoglycan (PG) biosynthesis.

Produced by the strain of Str. Violaceolatus, Kerriamycin A has anti-gram-positive bacterial effect and can also prolong the survival time of patients with Ai's ascites cancer.

It is produced by the strain of Str. Violaceolatus. Kerriamycin C has anti-gram-positive bacterial effect and can also prolong the survival time of patients with Ai's ascites cancer.

Kibdelin A is originally isolated from Kibdelosporangium aridum subsp. largum SKF AAD-609. Kibdelin A is resistant to gram-positive bacteria and has similar effects against Staphylococcus aureus (including methicillin-resistant strains) as vancomycin.

Kibdelin B is originally isolated from Kibdelosporangium aridum subsp. largum SKF AAD-609. Kibdelin B is resistant to gram-positive bacteria and has similar effects against Staphylococcus aureus (including methicillin-resistant strains) as vancomycin.

Kibdelin C1 is originally isolated from Kibdelosporangium aridum subsp. largum SKF AAD-609. Kibdelin C1 is resistant to gram-positive bacteria and has similar effects against Staphylococcus aureus (including methicillin-resistant strains) as vancomycin.

Kibdelin C2 is originally isolated from Kibdelosporangium aridum subsp. largum SKF AAD-609. Kibdelin C2 is resistant to gram-positive bacteria and has similar effects against Staphylococcus aureus (including methicillin-resistant strains) as vancomycin.

Kibdelin D is originally isolated from Kibdelosporangium aridum subsp. largum SKF AAD-609. Kibdelin D is resistant to gram-positive bacteria and has similar effects against Staphylococcus aureus (including methicillin-resistant strains) as vancomycin.

Kigamicin A is produced by the strain of Amycolatopsis sp. ML-630-mFl. It showed activity against gram-positive bacteria including methicillin-resistant Staphylococcus aureus (MRSA) with MIC of 0.025-0.78 μg/mL.

Kigamicin B is produced by the strain of Amycolatopsis sp. ML-630-mFl. It showed activity against gram-positive bacteria including methicillin-resistant Staphylococcus aureus (MRSA) with MIC of 0.025-0.78 μg/mL.

Kigamicin D is produced by the strain of Amycolatopsis sp. ML-630-mFl. It showed activity against gram-positive bacteria including methicillin-resistant Staphylococcus aureus (MRSA) with MIC of 0.025-0.78 μg/mL. It also shows effect against L-1210 LB32T and other genera tumor cells with IC50 of 1 μg/mL.

Kinamycin A is produced by the strain of Str. murayamaensis. Kinamycin A has antibacterial and mycobacterial effects, but it has weak activity against gram-negative bacteria.

Kinamycin B is produced by the strain of Str. murayamaensis. Kinamycin B has antibacterial and mycobacterial effects, but it has weak activity against gram-negative bacteria.

Kistamicin A is produced by the strain of Microtetraspora parvasata subsp. kistna. It has antiviral effect, and its ID50 (μg/mL) against influenza virus MDCK cells and herpes simplex virus are respectively 3.6 and 44. It also has anti-gram-positive bacterial effects.

Kistamicin B is produced by the strain of Microtetraspora parvasata subsp. kistna. It has antiviral effect, and its ID50 (μg/mL) against influenza virus MDCK cells and herpes simplex virus are respectively 1.8 and 30.