Q9Z5X5 · NIFS_FRASE
- ProteinCysteine desulfurase
- GenenifS
- StatusUniProtKB reviewed (Swiss-Prot)
- Organism
- Amino acids419 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
Catalyzes the removal of elemental sulfur atoms from cysteine to produce alanine. Seems to participate in the biosynthesis of the nitrogenase metalloclusters by providing the inorganic sulfur required for the Fe-S core formation.
Catalytic activity
- [sulfur carrier]-H + L-cysteine = [sulfur carrier]-SH + L-alanine
Cofactor
Features
Showing features for binding site, active site.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Binding site | 69-70 | pyridoxal 5'-phosphate (UniProtKB | ChEBI) | ||||
Sequence: AT | ||||||
Binding site | 157 | pyridoxal 5'-phosphate (UniProtKB | ChEBI) | ||||
Sequence: N | ||||||
Binding site | 185 | pyridoxal 5'-phosphate (UniProtKB | ChEBI) | ||||
Sequence: Q | ||||||
Binding site | 205-207 | pyridoxal 5'-phosphate (UniProtKB | ChEBI) | ||||
Sequence: SAH | ||||||
Binding site | 245 | pyridoxal 5'-phosphate (UniProtKB | ChEBI) | ||||
Sequence: T | ||||||
Active site | 333 | Cysteine persulfide intermediate | ||||
Sequence: C | ||||||
Binding site | 333 | [2Fe-2S] cluster (UniProtKB | ChEBI); via persulfide group | ||||
Sequence: C |
GO annotations
all annotations | all molecular function | virus receptor activity | dna binding | rna binding | cytoskeletal motor activity | catalytic activity | gtpase activity | structural molecule activity | transporter activity | cytoskeletal protein binding | lipid binding | cyclase activity | antioxidant activity | oxidoreductase activity | transferase activity | hydrolase activity | lyase activity | isomerase activity | ligase activity | protein tag activity | cargo receptor activity | histone binding | protein folding chaperone | translation regulator activity | nutrient reservoir activity | receptor ligand activity | molecular transducer activity | molecular adaptor activity | toxin activity | cell adhesion mediator activity | molecular function regulator activity | virus coreceptor activity | catalytic activity, acting on a protein | catalytic activity, acting on dna | catalytic activity, acting on rna | molecular carrier activity | transcription regulator activity | general transcription initiation factor activity | molecular sensor activity | molecular sequestering activity | atp-dependent activity | other molecular function | all biological process | mitotic cell cycle | cytokinesis | cytoplasmic translation | immune system process | muscle system process | circulatory system process | renal system process | respiratory system process | carbohydrate metabolic process | generation of precursor metabolites and energy | dna replication | dna repair | dna recombination | chromatin organization | dna-templated transcription | regulation of dna-templated transcription | trna metabolic process | protein folding | protein glycosylation | amino acid metabolic process | modified amino acid metabolic process | lipid metabolic process | vitamin metabolic process | sulfur compound metabolic process | intracellular protein transport | nucleocytoplasmic transport | autophagy | inflammatory response | mitochondrion organization | cytoskeleton organization | microtubule-based movement | peroxisome organization | lysosome organization | chromosome segregation | cell adhesion | establishment or maintenance of cell polarity | programmed cell death | photosynthesis | mrna metabolic process | snrna metabolic process | vesicle-mediated transport | reproductive process | digestive system process | signaling | cell differentiation | protein catabolic process | extracellular matrix organization | regulatory ncrna-mediated gene silencing | telomere organization | cell junction organization | wound healing | ribosome biogenesis | cilium organization | anatomical structure development | cell motility | nervous system process | endocrine process | protein maturation | transmembrane transport | nucleobase-containing small molecule metabolic process | hepaticobiliary system process | membrane organization | protein-containing complex assembly | cell wall organization or biogenesis | nitrogen cycle metabolic process | protein localization to plasma membrane | defense response to other organism | detoxification | meiotic nuclear division | mitotic nuclear division | mitochondrial gene expression | carbohydrate derivative metabolic process | other biological process | all cellular component | nuclear chromosome | extracellular region | extracellular space | cell wall | nucleus | nuclear envelope | nucleoplasm | chromosome | nucleolus | mitochondrion | lysosome | endosome | vacuole | peroxisome | endoplasmic reticulum | golgi apparatus | lipid droplet | microtubule organizing center | cytosol | ribosome | cytoskeleton | plasma membrane | cilium | plastid | thylakoid | external encapsulating structure | extracellular matrix | cytoplasmic vesicle | organelle | other cellular component | |||
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Aspect | Term | |
---|---|---|
Molecular Function | cysteine desulfurase activity | |
Molecular Function | iron-sulfur cluster binding | |
Molecular Function | metal ion binding | |
Biological Process | iron-sulfur cluster assembly | |
Biological Process | nitrogen fixation |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameCysteine desulfurase
- EC number
- Alternative names
Gene names
Organism names
- Organism
- Taxonomic lineageBacteria > Actinomycetota > Actinomycetes > Frankiales > Frankiaceae > Frankia
Accessions
- Primary accessionQ9Z5X5
PTM/Processing
Features
Showing features for chain, modified residue.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Chain | PRO_0000150255 | 1-419 | Cysteine desulfurase | |||
Sequence: MIYLDHNATTPVDPRVVEVMLPLFTERFANPASKHAPGQEATRIVERARREVASLAGARPREIVFTSGATEAANLAIGGVLATAEPGRRRILVGATEHPAVLGAADAAVSAGSAVSADGTTAAERIAVHPDGTVDVDDLRRRLGPDVALVAVMAANNETGAVNDPRPLVEAARSAGRCCCADVTQALGRVPVEFERTGVDLAVSSAHKLYGPKGVGALIASKDAWSRLAPRVHGGGQERGLRAGTLNTAGIAGFGAAARIAAESMADDGTRQRALVALLTELLVKRLGPGAVELNGPVRARLPNTVNLRFVGAGADEVQACAPRVAISAGSACSGGGDEPSHVLRAMGRTATEARESLRFSLGRATTTEEIRTAADLVARAVLRVRSLSQSTPIQDEVRDDNRASSNSLNRGSAASKES | ||||||
Modified residue | 208 | N6-(pyridoxal phosphate)lysine | ||||
Sequence: K |
Interaction
Subunit
Homodimer.
Structure
Family & Domains
Features
Showing features for region, compositional bias.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Region | 392-419 | Disordered | ||||
Sequence: TPIQDEVRDDNRASSNSLNRGSAASKES | ||||||
Compositional bias | 405-419 | Polar residues | ||||
Sequence: SSNSLNRGSAASKES |
Sequence similarities
Family and domain databases
Sequence
- Sequence statusComplete
- Length419
- Mass (Da)43,333
- Last updated1999-05-01 v1
- ChecksumE112EB80EE6D0D2E
Features
Showing features for compositional bias.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Compositional bias | 405-419 | Polar residues | ||||
Sequence: SSNSLNRGSAASKES |