Metabolic network

VK055_4743

cysteine synthase B

Network centrality 0.06377 top 96.3%
Chokepoint Yes

Attractive metabolic target: catalyzes a producing chokepoint reaction in Cysteine and methionine metabolism, more central than 96.3% of genes in this genome.

Pathways

KEGG pathways this gene's reaction(s) belong to.

Network

Two-hop reaction neighborhood around this protein; pathway boxes use one primary KEGG route per reaction when several mappings exist. Click a pathway box to open its full route map.

Reaction catalyzed by this protein Chokepoint reaction Neighbor reaction Pathway grouping (2+ reactions sharing a route) Connected reaction (arrow shows direction, when known) ⇌ Reversible reaction (double arrow) Cross-pathway connection

Selected reaction

Click a node in the network above, or a row in the table below, to inspect it here.

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EC
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Pathway
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Genes
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Role
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Isoenzymes
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Catalyzed reactions

Every reaction this gene catalyzes, with substrates/products and isoenzyme backup.

ACSERLY-RXN

EC 2.5.1.47 · ACSERLY-RXN · not reversible · 2 isoenzymes

O-acetyl-L-serine hydrogen sulfide
L-cysteine acetate H+

SULFOCYS-RXN

EC 2.5.1.144 · SULFOCYS-RXN · reversible · no isoenzyme backup

O-acetyl-L-serine thiosulfate
H+ S-sulfo-L-cysteine acetate

RXN-12726

EC 2.5.1.47 · RXN-12726 · not reversible · 2 isoenzymes

Producing chokepoint
O-acetyl-L-serine hydrogen selenide
L-selenocysteine acetate H+

Imported from KpATCC43816.sbml · 2026-07-09