[1]	NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. McClelland M., Sanderson E.K., Porwollik S., Spieth J., Clifton W.S., Fulton B., Wollam A., Shah N., Pepin K., Bhonagiri V., Nash W., Johnson M., Thiruvilangam P., Wilson R.; Submitted (JUL-2007) to the EMBL/GenBank/DDBJ databases.

Comments

FUNCTION: Catalyzes the 6-electron reduction of sulfite to sulfide. This is one of several activities required for the biosynthesis of L-cysteine from sulfate. The flavo-protein component catalyzes the electron flow from NADPH -> FAD -> FMN to the hemoprotein component (By similarity).
CATALYTIC ACTIVITY: H₂S + 3 NADP⁺ + 3 H₂O = sulfite + 3 NADPH.
COFACTOR: Binds 1 FAD per subunit (By similarity).
COFACTOR: Binds 1 FMN per subunit (By similarity).
SUBUNIT: Alpha(8)-beta(8). The alpha component is a flavoprotein, the beta component is a hemoprotein (By similarity).
SIMILARITY: Contains 1 FAD-binding FR-type domain.
SIMILARITY: Contains 1 flavodoxin-like domain.

Copyright

Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.

Cross-references

Sequence databases

EMBL

CP000783; ABU75824.1; -; Genomic_DNA.

[EMBL / GenBank / DDBJ] [CoDingSequence]

RefSeq

YP_001436661.1; -.

3D structure databases

ModBase

A7MJ63.

Ontologies

GO:0004783;	Molecular function: sulfite reductase (NADPH) activity (inferred from electronic annotation from HAMAP).
GO:0000103;	Biological process: sulfate assimilation (inferred from electronic annotation from HAMAP).
QuickGo view.

Family and domain databases

HAMAP

MF_01541; -; 1.
PBIL [Tree]

InterPro

IPR010199; CysJ.
IPR003097; FAD-binding_1.
IPR001094; Flavdoxin_like.
IPR008254; Flavodoxin/NO_synth.
IPR001709; FPN_cyt_redctse.
IPR001433; OxRdtase_FAD/NAD_bd.
Graphical view of domain structure.

Pfam

PF00667; FAD_binding_1; 1.
PF00258; Flavodoxin_1; 1.
PF00175; NAD_binding_1; 1.
Pfam graphical view of domain structure.

PRINTS

PR00369; FLAVODOXIN.
PR00371; FPNCR.

TIGRFAMs

TIGR01931; cysJ; 1.

PROSITE

PS51384; FAD_FR; 1.
PS50902; FLAVODOXIN_LIKE; 1.
PROSITE graphical view of domain structure (profiles).

BLOCKS

A7MJ63.

Genome annotation databases

GeneID

5551773; -.

GenomeReviews

CP000783_GR; ESA_00533.

KEGG

esa:ESA_00533; -.

CMR

A7MJ63; ESA_00533.

Other

ProtoNet

A7MJ63.

UniRef

View cluster of proteins with at least 50% / 90% / 100% identity.

Keywords

Amino-acid biosynthesis; Complete proteome; Cysteine biosynthesis; Electron transport; FAD; Flavoprotein; FMN; NADP; Oxidoreductase; Transport.

Features

Feature table viewer

Feature aligner

`Key`	`From To`	`Length`	`Description`	`FTId`
`CHAIN`	`1 600`	`600`	`Sulfite reductase [NADPH] flavoprotein alpha-component.`	`PRO_1000087636`
`DOMAIN`	`63 201`	`139`	`Flavodoxin-like.`
`DOMAIN`	`235 449`	`215`	`FAD-binding FR-type.`
`NP_BIND`	`69 73`	`5`	`FMN (By similarity).`
`NP_BIND`	`149 180`	`32`	`FMN (By similarity).`
`NP_BIND`	`237 289`	`53`	`FAD (By similarity).`
`NP_BIND`	`473 600`	`128`	`NADP (By similarity).`

Sequence information

Length: 600 AA [This is the length of the unprocessed precursor]

Molecular weight: 66548 Da [This is the MW of the unprocessed precursor]

CRC64: 58E4C1E4C63B438B [This is a checksum on the sequence]

        10         20         30         40         50         60 
MTTQAPPNAL LPLSPEQLAR LQTATHDFTP TQLAWLSGYF WGMVNQQPGA AVMQKPAAPA 

        70         80         90        100        110        120 
SVITLISASQ TGNARRVAEA LRDDLLAAQL NVNLVNAGDY KFKQIAQEKL LIVVASTQGE 

       130        140        150        160        170        180 
GDPPEEAVAL HKFLLSKKAP KLDGTAFAVF GLGDTSYEHF CQAGKDFDTR LAELGAERLL 

       190        200        210        220        230        240 
DRVDADVEYQ AAAQAWRQRV VDVLKARVPK EAPSQAAITA SGAVNLVDST PYTKESPLTA 

       250        260        270        280        290        300 
TLSVNQKITG RHSEKDVRHI EIDLGDAGLR YQPGDALGVW YQNDPALVQE LLELLWLKGD 

       310        320        330        340        350        360 
EPVTVGEKTL PLSEALQWHF ELTVNTAAIV ENYATLTRSE ALLPLVGDKA KLQDYAARTP 

       370        380        390        400        410        420 
IVDMVRFAPA QLEADQLLGL LRPLTPRLYS IASSQAEVEN EVHITVGVVR FDIEGRVRAG 

       430        440        450        460        470        480 
GASSYLADRL EEDSEVRVFI EHNDNFRLPA TPETPVIMIG PGTGIAPFRA FMQQREADGA 

       490        500        510        520        530        540 
TGKNWLFFGN PHFTEDFLYQ VEWQRYVKEG LLTRIDLAWS RDQDHKIYVQ DKIREQGAEL 

       550        560        570        580        590        600 
WRWLQEGAHL YVCGDANRMA KDVEQALLEV IAAYGGMDAE AADEYLSELR VERRYQRDVY

A7MJ63 in FASTA format

View entry in original UniProtKB/Swiss-Prot format
View entry in raw text format (no links)
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	BLAST submission on ExPASy/SIB or at NCBI (USA)		Sequence analysis tools: ProtParam, ProtScale, Compute pI/Mw, PeptideMass, PeptideCutter, Dotlet (Java)
	ScanProsite, MotifScan		Submit a homology modeling request to SWISS-MODEL
	NPSA Sequence analysis tools