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Q3ILQ9

- CYSG_PSEHT

UniProt

Q3ILQ9 - CYSG_PSEHT

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Protein

Siroheme synthase

Gene
cysG, PSHAa0213
Organism
Pseudoalteromonas haloplanktis (strain TAC 125)
Status
Reviewed - Annotation score: 5 out of 5 - Protein inferred from homologyi

Functioni

Multifunctional enzyme that catalyzes the SAM-dependent methylations of uroporphyrinogen III at position C-2 and C-7 to form precorrin-2 via precorrin-1. Then it catalyzes the NAD-dependent ring dehydrogenation of precorrin-2 to yield sirohydrochlorin. Finally, it catalyzes the ferrochelation of sirohydrochlorin to yield siroheme By similarity.UniRule annotation

Catalytic activityi

S-adenosyl-L-methionine + uroporphyrinogen III = S-adenosyl-L-homocysteine + precorrin-1.UniRule annotation
S-adenosyl-L-methionine + precorrin-1 = S-adenosyl-L-homocysteine + precorrin-2.UniRule annotation
Precorrin-2 + NAD+ = sirohydrochlorin + NADH.UniRule annotation
Siroheme + 2 H+ = sirohydrochlorin + Fe2+.UniRule annotation

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei224 – 2241S-adenosyl-L-methionine; via carbonyl oxygen By similarity
Active sitei247 – 2471Proton acceptor By similarity
Active sitei269 – 2691Proton donor By similarity
Binding sitei305 – 3051S-adenosyl-L-methionine; via carbonyl oxygen By similarity
Binding sitei382 – 3821S-adenosyl-L-methionine; via amide nitrogen By similarity
Binding sitei411 – 4111S-adenosyl-L-methionine; via amide nitrogen and carbonyl oxygen By similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi22 – 232NAD By similarity
Nucleotide bindingi43 – 442NAD By similarity

GO - Molecular functioni

  1. NAD binding Source: InterPro
  2. precorrin-2 dehydrogenase activity Source: UniProtKB-HAMAP
  3. sirohydrochlorin ferrochelatase activity Source: UniProtKB-EC
  4. uroporphyrin-III C-methyltransferase activity Source: UniProtKB-HAMAP

GO - Biological processi

  1. cobalamin biosynthetic process Source: UniProtKB-HAMAP
  2. siroheme biosynthetic process Source: UniProtKB-HAMAP
Complete GO annotation...

Keywords - Molecular functioni

Lyase, Methyltransferase, Oxidoreductase, Transferase

Keywords - Biological processi

Cobalamin biosynthesis, Porphyrin biosynthesis

Keywords - Ligandi

NAD, S-adenosyl-L-methionine

Enzyme and pathway databases

BioCyciPHAL326442:GJIU-215-MONOMER.
UniPathwayiUPA00148; UER00211.
UPA00148; UER00222.
UPA00262; UER00211.
UPA00262; UER00222.
UPA00262; UER00376.

Names & Taxonomyi

Protein namesi
Recommended name:
Siroheme synthase
Including the following 3 domains:
Uroporphyrinogen-III C-methyltransferase (EC:2.1.1.107)
Short name:
Urogen III methylase
Alternative name(s):
SUMT
Uroporphyrinogen III methylase
Short name:
UROM
Precorrin-2 dehydrogenase (EC:1.3.1.76)
Sirohydrochlorin ferrochelatase (EC:4.99.1.4)
Gene namesi
Name:cysG
Ordered Locus Names:PSHAa0213
OrganismiPseudoalteromonas haloplanktis (strain TAC 125)
Taxonomic identifieri326442 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaAlteromonadalesPseudoalteromonadaceaePseudoalteromonas
ProteomesiUP000006843: Chromosome I

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 473473Siroheme synthaseUniRule annotationPRO_0000330532Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei128 – 1281Phosphoserine By similarity

Keywords - PTMi

Phosphoprotein

Interactioni

Protein-protein interaction databases

STRINGi326442.PSHAa0213.

Structurei

3D structure databases

ProteinModelPortaliQ3ILQ9.

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni1 – 203203precorrin-2 dehydrogenase / sirohydrochlorin ferrochelatase By similarityAdd
BLAST
Regioni215 – 473259Uroporphyrinogen-III C-methyltransferase By similarityAdd
BLAST
Regioni300 – 3023S-adenosyl-L-methionine binding By similarity
Regioni330 – 3312S-adenosyl-L-methionine binding By similarity

Sequence similaritiesi

In the C-terminal section; belongs to the precorrin methyltransferase family.

Phylogenomic databases

eggNOGiCOG0007.
HOGENOMiHOG000290518.
KOiK02302.
OMAiLHQQLAW.
OrthoDBiEOG6DRPFR.

Family and domain databases

Gene3Di1.10.8.210. 1 hit.
3.30.950.10. 1 hit.
3.40.1010.10. 1 hit.
3.40.50.720. 1 hit.
HAMAPiMF_01646. Siroheme_synth.
InterProiIPR000878. 4pyrrol_Mease.
IPR014777. 4pyrrole_Mease_sub1.
IPR014776. 4pyrrole_Mease_sub2.
IPR006366. CobA/CysG_C.
IPR016040. NAD(P)-bd_dom.
IPR012409. Sirohaem_synth.
IPR019478. Sirohaem_synthase_dimer_dom.
IPR006367. Sirohaem_synthase_N.
IPR003043. Uropor_MeTrfase_CS.
[Graphical view]
PfamiPF10414. CysG_dimeriser. 1 hit.
PF13241. NAD_binding_7. 1 hit.
PF00590. TP_methylase. 1 hit.
[Graphical view]
PIRSFiPIRSF036426. Sirohaem_synth. 1 hit.
SUPFAMiSSF53790. SSF53790. 1 hit.
TIGRFAMsiTIGR01469. cobA_cysG_Cterm. 1 hit.
TIGR01470. cysG_Nterm. 1 hit.
PROSITEiPS00839. SUMT_1. 1 hit.
PS00840. SUMT_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q3ILQ9-1 [UniParc]FASTAAdd to Basket

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MQYLPIFTKL DNKPVLVVGG GDVALRKCSA LLKARASITL VAPKFCQQLI    50
ELASENKVTL IHEYFSEQHL KNMMLVIAAT DLEHVNSQVF ELANAHNIFV 100
NVVDDQPKCT FIFPSIVDRN PITIAISSAG TAPVLARRLR EKLETLIPQH 150
IGPLATLVGG FRSKVKQRFK HFADRRQFWE GVFDSSVVSK VQTGDTQAAE 200
QQLEHMLNAK AEPEGEVYVV GAGPGDPELL TLKALQLMQQ ADVVVYDYLV 250
SDEIMELVRR DADLICVGKR LGDHSVAQQD TNQMLVDLAK QGKKVCRIKG 300
GDPFIYGRGG EEVQVLAANK VNYQIVPGIT AAAGCSAYAG IPLTHRDHAQ 350
AIQFVTGHCK KDGQELDWQS LAKPNQTLAI YMGVIKSPHI QAELLKHGRN 400
ANTPVAIIEN GTRKNQRVIT GKLGELADLI TRNSVVSPAL LIIGEVASLH 450
QELHWFGAKA QTSSFAQPLT DVA 473
Length:473
Mass (Da):51,809
Last modified:November 8, 2005 - v1
Checksum:i64D87C039D7900D3
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CR954246 Genomic DNA. Translation: CAI85316.1.
RefSeqiYP_338759.1. NC_007481.1.

Genome annotation databases

EnsemblBacteriaiCAI85316; CAI85316; PSHAa0213.
GeneIDi3709414.
KEGGipha:PSHAa0213.
PATRICi32293957. VBIPseHal105694_0204.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CR954246 Genomic DNA. Translation: CAI85316.1 .
RefSeqi YP_338759.1. NC_007481.1.

3D structure databases

ProteinModelPortali Q3ILQ9.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 326442.PSHAa0213.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai CAI85316 ; CAI85316 ; PSHAa0213 .
GeneIDi 3709414.
KEGGi pha:PSHAa0213.
PATRICi 32293957. VBIPseHal105694_0204.

Phylogenomic databases

eggNOGi COG0007.
HOGENOMi HOG000290518.
KOi K02302.
OMAi LHQQLAW.
OrthoDBi EOG6DRPFR.

Enzyme and pathway databases

UniPathwayi UPA00148 ; UER00211 .
UPA00148 ; UER00222 .
UPA00262 ; UER00211 .
UPA00262 ; UER00222 .
UPA00262 ; UER00376 .
BioCyci PHAL326442:GJIU-215-MONOMER.

Family and domain databases

Gene3Di 1.10.8.210. 1 hit.
3.30.950.10. 1 hit.
3.40.1010.10. 1 hit.
3.40.50.720. 1 hit.
HAMAPi MF_01646. Siroheme_synth.
InterProi IPR000878. 4pyrrol_Mease.
IPR014777. 4pyrrole_Mease_sub1.
IPR014776. 4pyrrole_Mease_sub2.
IPR006366. CobA/CysG_C.
IPR016040. NAD(P)-bd_dom.
IPR012409. Sirohaem_synth.
IPR019478. Sirohaem_synthase_dimer_dom.
IPR006367. Sirohaem_synthase_N.
IPR003043. Uropor_MeTrfase_CS.
[Graphical view ]
Pfami PF10414. CysG_dimeriser. 1 hit.
PF13241. NAD_binding_7. 1 hit.
PF00590. TP_methylase. 1 hit.
[Graphical view ]
PIRSFi PIRSF036426. Sirohaem_synth. 1 hit.
SUPFAMi SSF53790. SSF53790. 1 hit.
TIGRFAMsi TIGR01469. cobA_cysG_Cterm. 1 hit.
TIGR01470. cysG_Nterm. 1 hit.
PROSITEi PS00839. SUMT_1. 1 hit.
PS00840. SUMT_2. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: TAC 125.

Entry informationi

Entry nameiCYSG_PSEHT
AccessioniPrimary (citable) accession number: Q3ILQ9
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 29, 2008
Last sequence update: November 8, 2005
Last modified: June 11, 2014
This is version 66 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Multifunctional enzyme

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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