Gene/Proteome Database (LMPD)

LMPD ID
LMP011428
Gene ID
829440
Species
Arabidopsis thaliana (Arabidopsis)
Gene Name
sulfoquinovosyldiacylglycerol 1
Gene Symbol
SQD1
Synonyms
F4I10.6; SQD1; sulfoquinovosyldiacylglycerol 1; UDP-SULFOQUINOVOSE SYNTHASE
Alternate Names
sulfoquinovosyldiacylglycerol 1
Chromosome
4
EC Number
3.13.1.1
Summary
involved in sulfolipid biosynthesis
Orthologs
View orthologs and multiple alignments for SQD1

Proteins

sulfoquinovosyldiacylglycerol 1
Refseq ID NP_195029
Protein GI 15234041
UniProt ID O48917
mRNA ID NM_119457
Length 477
RefSeq Status REVIEWED
MAHLLSASCPSVISLSSSSSKNSVKPFVSGQTFFNAQLLSRSSLKGLLFQEKKPRKSCVFRATAVPITQQAPPETSTNNSSSKPKRVMVIGGDGYCGWATALHLSKKNYEVCIVDNLVRRLFDHQLGLESLTPIASIHDRISRWKALTGKSIELYVGDICDFEFLAESFKSFEPDSVVHFGEQRSAPYSMIDRSRAVYTQHNNVIGTLNVLFAIKEFGEECHLVKLGTMGEYGTPNIDIEEGYITITHNGRTDTLPYPKQASSFYHLSKVHDSHNIAFTCKAWGIRATDLNQGVVYGVKTDETEMHEELRNRLDYDAVFGTALNRFCVQAAVGHPLTVYGKGGQTRGYLDIRDTVQCVEIAIANPAKAGEFRVFNQFTEQFSVNELASLVTKAGSKLGLDVKKMTVPNPRVEAEEHYYNAKHTKLMELGLEPHYLSDSLLDSLLNFAVQFKDRVDTKQIMPSVSWKKIGVKTKSMTT

Gene Information

Entrez Gene ID
829440
Gene Name
sulfoquinovosyldiacylglycerol 1
Gene Symbol
SQD1
Species
Arabidopsis thaliana

Gene Ontology (GO Annotations)

GO ID Source Type Description
GO:0009507 IDA:TAIR C chloroplast
GO:0046507 IEA:UniProtKB-EC F UDPsulfoquinovose synthase activity
GO:0050662 IEA:InterPro F coenzyme binding
GO:0008146 IDA:TAIR F sulfotransferase activity
GO:0008270 IDA:TAIR F zinc ion binding
GO:0016036 IEP:TAIR P cellular response to phosphate starvation
GO:0009247 IDA:TAIR P glycolipid biosynthetic process

KEGG Pathway Links

KEGG Pathway ID Description
ath00520 Amino sugar and nucleotide sugar metabolism
ko00520 Amino sugar and nucleotide sugar metabolism
ath00561 Glycerolipid metabolism
ko00561 Glycerolipid metabolism

Domain Information

InterPro Annotations

Accession Description
IPR016040 NAD(P)-binding domain
IPR001509 NAD-dependent epimerase/dehydratase, N-terminal domain

UniProt Annotations

Entry Information

Gene Name
sulfoquinovosyldiacylglycerol 1
Protein Entry
SQD1_ARATH
UniProt ID
O48917
Species
Arabidopsis

Comments

Comment Type Description
Biophysicochemical Properties Kinetic parameters: KM=150 uM for UDP-glucose; KM=10 uM for sulfite; pH dependence: Optimum pH is 7.5-9.5.;
Catalytic Activity UDP-alpha-D-sulfoquinovose + H(2)O = UDP- alpha-D-glucose + sulfite.
Cofactor Name=NAD(+); Xref=ChEBI:CHEBI:57540;
Enzyme Regulation Concentrations above 100 uM sulfite inhibit the reaction.
Function Involved in the biosynthesis of sulfolipids found in thylakoid membranes. Converts UDP-glucose and sulfite to the sulfolipid head group precursor UDP-sulfoquinovose. {ECO:0000269|PubMed:11073956}.
Induction Induced in response to altered availability of inorganic phosphate. {ECO:0000269|PubMed:12805589, ECO:0000269|PubMed:9465123}.
Similarity Belongs to the NAD(P)-dependent epimerase/dehydratase family. {ECO:0000305}.
Subcellular Location Plastid, chloroplast {ECO:0000269|PubMed:9465123}.
Subunit Homodimer. {ECO:0000269|PubMed:10557279}.

Identical and Related Proteins

Unique RefSeq proteins for LMP011428 (as displayed in Record Overview)

Protein GI Database Accession Length Protein Name
15234041 RefSeq NP_195029 477 sulfoquinovosyldiacylglycerol 1

Identical Sequences to LMP011428 proteins

Reference Database Accession Length Protein Name
GI:15234041 EMBL CAD67524.1 477 unnamed protein product [Arabidopsis thaliana]
GI:15234041 GenBank ABU25812.1 477 Sequence 7 from patent US 7226764
GI:15234041 GenBank ACN01223.1 477 Sequence 7 from patent US 7479387
GI:15234041 GenBank ADT60389.1 477 Sequence 1668 from patent US 7847156
GI:15234041 GenBank AEE86162.1 477 sulfoquinovosyldiacylglycerol 1 [Arabidopsis thaliana]
GI:15234041 SwissProt O48917.1 477 RecName: Full=UDP-sulfoquinovose synthase, chloroplastic; AltName: Full=Sulfite:UDP-glucose sulfotransferase; AltName: Full=Sulfolipid biosynthesis protein; Flags: Precursor [Arabidopsis thaliana]

Related Sequences to LMP011428 proteins

Reference Database Accession Length Protein Name
GI:15234041 GenBank EFH45488.1 475 hypothetical protein ARALYDRAFT_491388 [Arabidopsis lyrata subsp. lyrata]
GI:15234041 GenBank ESQ53852.1 477 hypothetical protein EUTSA_v10025085mg [Eutrema salsugineum]
GI:15234041 RefSeq XP_002869229.1 475 hypothetical protein ARALYDRAFT_491388 [Arabidopsis lyrata subsp. lyrata]
GI:15234041 RefSeq XP_006412399.1 477 hypothetical protein EUTSA_v10025085mg [Eutrema salsugineum]
GI:15234041 RefSeq XP_010432625.1 479 PREDICTED: UDP-sulfoquinovose synthase, chloroplastic [Camelina sativa]
GI:15234041 RefSeq XP_010437816.1 479 PREDICTED: UDP-sulfoquinovose synthase, chloroplastic-like [Camelina sativa]