EC 2.8.5.1: S-sulfo-L-cysteine synthase (3-phospho-L-serine-dependent)

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CatLog read 8 records for EC 2.8.5.1 from 1 paper, for 1 organism. Names in these papers: CysK2.

Read from the paper by an AI model and checked against the paper by a second, separate AI run; code converted the units.

Papers

Papers with records for EC 2.8.5.1
Paper	Organisms	Records
CysK2 from Mycobacterium tuberculosis is an O-phospho-L-serine-dependent S-sulfocysteine synthase	Mycobacterium tuberculosis	8

Records

Records for EC 2.8.5.1 read from the paper
Enzyme	Organism	Substrate	k_cat (s⁻¹)	K_m (mM)	k_cat/K_m (mM⁻¹ s⁻¹)	Conditions	Paper	Open record
CysK2	Mycobacterium tuberculosis	O-phospho-L-serineacid-ninhydrin cysteine assay at 560 nm; Na2S fixed at 1 mM	0.202	0.135	1.48	pH 7, 22 °C	PMID 25022854	Open record: CysK2, O-phospho-L-serine
CysK2	Mycobacterium tuberculosis	O-phospho-L-serineO-phosphoserine S-sulfocysteine synthase reaction	0.913	1.085	0.83	pH 7, 22 °C	PMID 25022854	Open record: CysK2, O-phospho-L-serine
CysK2	Mycobacterium tuberculosis	O-phospho-L-serine300 nM enzyme; OPS 0.05 to 8.0 mM	0.27	0.233	1.17	pH 7, 22 °C	PMID 25022854	Open record: CysK2, O-phospho-L-serine
CysK2	Mycobacterium tuberculosis	sodium sulfide	—	0.374	0.53	pH 7, 22 °C	PMID 25022854	Open record: CysK2, sodium sulfide
CysK2	Mycobacterium tuberculosis	sodium thiosulfate	—	0.0439	20.8	pH 7, 22 °C	PMID 25022854	Open record: CysK2, sodium thiosulfate
CysK2variant R243A	Mycobacterium tuberculosis	O-phospho-L-serineacid-ninhydrin cysteine assay at 560 nm; Na2S fixed at 1 mM	0.0067	1.085	1.02 × 10⁻⁴	pH 7, 22 °C	PMID 25022854	Open record: CysK2 variant R243A, O-phospho-L-serine
CysK2variant R243A	Mycobacterium tuberculosis	O-phospho-L-serineO-phosphoserine S-sulfocysteine synthase reaction	0.457	0.4851	0.93	pH 7, 22 °C	PMID 25022854	Open record: CysK2 variant R243A, O-phospho-L-serine
CysK2variant R243A	Mycobacterium tuberculosis	sodium thiosulfate	—	0.2137	2.13	pH 7, 22 °C	PMID 25022854	Open record: CysK2 variant R243A, sodium thiosulfate

CatLog snapshot Oct 24, 2026 (data ID 660092338b). CatLog's compilation is free to reuse under CC BY 4.0; records from a database keep its license. How to cite.