Overview
- External ontology
- TOGO:M2964 — SP-4 medium
- Applications
-
- Microbial cultivation
- pH range
- {'min': 7.4, 'max': 7.6}
- Notes
- TOGO M2964 defines SP-4 medium with 560 ml De-ionized water, 5 g Glucose, 10 g Bacto Tryptone, 5.3 g Bacto Peptone, 3.5 g Mycoplasma Broth Base, 170 ml heat-treated Fetal bovine serum, 20 ml 0.1% Phenol red, 100 ml 2% Difco Yeastolate, 10 ml Penicillin G at 100000 units/ml, optional 5 ml Polymyxin B at 100000 units/ml, 35 ml Fresh yeast extract at 25%, 50 ml 1:50 Thallium acetate, and 50 ml CMRL 1066 tissue culture supplement. The TOGO comments direct adjusting to pH 7.5-7.6, sterilizing at 121 C for 15 minutes, and record a final pH of 7.4-7.5.
Composition
flowchart LR
CultureMech_009489["sp_4_medium"]
ing0_De_ionized_water["De-ionized water"]
CultureMech_009489 --> ing0_De_ionized_water
CHEBI_15377["CHEBI:15377"]
ing0_De_ionized_water -.-> CHEBI_15377
ing1_Glucose["Glucose"]
CultureMech_009489 --> ing1_Glucose
CHEBI_17234["CHEBI:17234"]
ing1_Glucose -.-> CHEBI_17234
ing2_Bacto_Tryptone["Bacto Tryptone"]
CultureMech_009489 --> ing2_Bacto_Tryptone
ing3_Bacto_Peptone["Bacto Peptone"]
CultureMech_009489 --> ing3_Bacto_Peptone
ing4_Mycoplasma_Broth_Base["Mycoplasma Broth Base"]
CultureMech_009489 --> ing4_Mycoplasma_Broth_Base
ing5_Fetal_bovine_serum__heated_56_C__I_hour_["Fetal bovine serum (heated 56°C- I hour)"]
CultureMech_009489 --> ing5_Fetal_bovine_serum__heated_56_C__I_hour_
ing6_CMRL_1066_tissue_culture_supplement___10x__with_glutamine_["CMRL 1066 tissue culture supplement- (10x)(with glutamine)"]
CultureMech_009489 --> ing6_CMRL_1066_tissue_culture_supplement___10x__with_glutamine_
Ingredients (7)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 |
De-ionized water
H2O 18.015 g/mol
|
560.0 ML_PER_L |
CHEBI:15377
water
|
TOGO M2964 lists 560.0 ml/L De-ionized water. |
| 2 |
Glucose
C6H12O6 180.156 g/mol
|
5.0 G_PER_L |
CHEBI:17234
glucose
|
TOGO M2964 lists 5.0 g/L Glucose. |
| 3 | Bacto Tryptone | 10.0 G_PER_L | TOGO M2964 lists 10 g/L Bacto Tryptone; this commercial pancreatic casein digest is retained as an opaque complex component. | |
| 4 | Bacto Peptone | 5.3 G_PER_L |
MICRO:0000178 (source link unavailable)
Bacto peptone
|
TOGO M2964 lists 5.3 g/L Bacto Peptone. |
| 5 | Mycoplasma Broth Base | 3.5 G_PER_L | TOGO M2964 lists 3.5 g/L Mycoplasma Broth Base; this commercial broth base is retained as an opaque complex component. | |
| 6 | Fetal bovine serum (heated 56°C- I hour) | 170.0 ML_PER_L |
mediadive.compound:954 (source link unavailable)
Fetal bovine serum
|
TOGO M2964 lists 170 ml/L fetal bovine serum heated at 56 C for 1 hour. |
| 7 | CMRL 1066 tissue culture supplement- (10x)(with glutamine) | 50.0 ML_PER_L |
mediadive.compound:1680 (source link unavailable)
CMRL 1066
|
TOGO M2964 lists 50 ml/L CMRL 1066 tissue culture supplement; this 10x commercial supplement is retained as an opaque complex component. |
Preparation
- Mix De-ionized water, Glucose, Bacto Tryptone, Bacto Peptone, and Mycoplasma Broth Base as the basal medium.
- Adjust the basal medium to pH 7.5-7.6.
- Sterilize the basal medium at 121 C for 15 minutes.
- Add fetal bovine serum, Phenol red, Yeastolate, Penicillin G, optional Polymyxin B, Fresh yeast extract, Thallium acetate, and CMRL 1066 tissue culture supplement.
Solutions
Phenol red (0.1% aqueous)
Dose: 20.0 ML_PER_L
| Ingredient | Concentration | Notes |
|---|---|---|
| Phenol red | 0.1 PERCENT_W_V | TOGO M2964 identifies Phenol red (0.1% aqueous) as 0.1 % w/v Phenol red. |
TOGO M2964 lists 20 ml/L 0.1% aqueous Phenol red.
Yeastolate (2% solution) (Difco)
Dose: 100.0 ML_PER_L
| Ingredient | Concentration | Notes |
|---|---|---|
| Yeastolate | 2.0 PERCENT_W_V | TOGO M2964 identifies Yeastolate (2% solution) (Difco) as 2.0 % w/v Yeastolate. |
TOGO M2964 lists 100 ml/L 2% Yeastolate solution from Difco; the yeastolate is retained as an opaque complex component.
Penicillin G (100,000 units/ml)
Dose: 10.0 ML_PER_L
| Ingredient | Concentration | Notes |
|---|---|---|
| Penicillin G | variable VARIABLE | TOGO M2964 identifies Penicillin G (100,000 units/ml) as an activity-unit Penicillin G stock; the exact mass concentration is variable. |
TOGO M2964 lists 10 ml/L Penicillin G at 100000 units/ml; the stock concentration is retained as variable because the schema has no activity-unit concentration.
Polymyxin B (100,000 units/ml) (optional)
Dose: 5.0 ML_PER_L
| Ingredient | Concentration | Notes |
|---|---|---|
| Polymyxin B | variable VARIABLE | TOGO M2964 identifies Polymyxin B (100,000 units/ml) (optional) as an activity-unit Polymyxin B stock; the exact mass concentration is variable. |
TOGO M2964 lists optional 5 ml/L Polymyxin B at 100000 units/ml; the stock concentration is retained as variable because the schema has no activity-unit concentration.
Fresh yeast extract (25% solution)
Dose: 35.0 ML_PER_L
| Ingredient | Concentration | Notes |
|---|---|---|
| Fresh yeast extract | 25.0 PERCENT_W_V | TOGO M2964 identifies Fresh yeast extract (25% solution) as 25.0 % w/v Fresh yeast extract. |
TOGO M2964 lists 35 ml/L 25% Fresh yeast extract; the fresh yeast extract is retained as an opaque complex component.
Thallium acetate (1:50 solution)
Dose: 50.0 ML_PER_L
| Ingredient | Concentration | Notes |
|---|---|---|
| Thallium acetate | 2.0 PERCENT_W_V | TOGO M2964 identifies Thallium acetate (1:50 solution) as 2.0 % w/v Thallium acetate. |
TOGO M2964 lists 50 ml/L 1:50 Thallium acetate solution.
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-27T06:35:57.429215Z | togo-import | Imported from TOGO Medium | Source: TOGO, ID: M2964 |
| 2026-01-28T19:48:20.676247Z | chebi-enrichment | Added CHEBI ontology terms to ingredients | Enriched using MicrobeMediaParam and MediaDive chemical mappings |
| 2026-03-09T08:04:34.278763+00:00 | solution-migrator-v1.0 | Migrated solutions from ingredients to solutions array | Moved 3 solution(s) from ingredients |
| 2026-03-13T06:20:06.375226Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:009489 |
| 2026-03-14T00:00:00+00:00 | schema-defaulter-v1.0 | Applied schema defaults and normalizations | Added default solution name; Added default solution name; Added default solution name |
| 2026-03-17T06:30:09.000000Z | mediaingredientmech-enrichment-v1.0 | Added MediaIngredientMech links | Linked ingredients to MediaIngredientMech identifiers |
| 2026-03-17T19:46:25.359793+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "SP-4 medium" to "sp_4_medium" for consistent matching |
| 2026-05-16T09:04:31.927617+00:00 | migrate_legacy_fields.py | MIGRATED_LEGACY_FIELDS | curation_history.date->timestamp=1 |
| 2026-06-05T07:41:46.137367+00:00 | mim-legacy-to-chebi-migration-v1.0 | Refreshed legacy MediaIngredientMech links to CHEBI keying | Replaced 1 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme. |
| 2026-09-12T00:00:00-07:00 | repair_togo_m2964_sp4_score15.py | RESOLVED_TOGO_M2964_SP4_SCORE15 | TOGO M2964 defines SP-4 medium with 560 ml De-ionized water, 5 g Glucose, 10 g Bacto Tryptone, 5.3 g Bacto Peptone, 3.5 g Mycoplasma Broth Base, 170 ml heat-treated Fetal bovine serum, 20 ml 0.1% Phenol red, 100 ml 2% Difco Yeastolate, 10 ml Penicillin G at 100000 units/ml, optional 5 ml Polymyxin B at 100000 units/ml, 35 ml Fresh yeast extract at 25%, 50 ml 1:50 Thallium acetate, and 50 ml CMRL 1066 tissue culture supplement. The TOGO comments direct adjusting to pH 7.5-7.6, sterilizing at 121 C for 15 minutes, and record a final pH of 7.4-7.5. Corrected imported ml additions, moved stock solutions into the solutions array with disclosed compositions where available, added the source pH and autoclave instructions, and removed kg_microbe_match mediadive.medium:21 because MediaDive medium 21 is Sarcina Medium. |