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Q55141 (ILVH_SYNY3) Reviewed, UniProtKB/Swiss-Prot

Last modified July 9, 2014. Version 92. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (3) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Acetolactate synthase small subunit

EC=2.2.1.6
Alternative name(s):
Acetohydroxy-acid synthase small subunit
Short name=AHAS
Short name=ALS
Gene names
Name:ilvH
Synonyms:ilvN
Ordered Locus Names:sll0065
OrganismSynechocystis sp. (strain PCC 6803 / Kazusa) [Reference proteome] [HAMAP]
Taxonomic identifier1111708 [NCBI]
Taxonomic lineageBacteriaCyanobacteriaOscillatoriophycideaeChroococcalesSynechocystis

Protein attributes

Sequence length172 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Catalytic activity

2 pyruvate = 2-acetolactate + CO2.

Pathway

Amino-acid biosynthesis; L-isoleucine biosynthesis; L-isoleucine from 2-oxobutanoate: step 1/4.

Amino-acid biosynthesis; L-valine biosynthesis; L-valine from pyruvate: step 1/4.

Subunit structure

Dimer of large and small chains By similarity.

Sequence similarities

Belongs to the acetolactate synthase small subunit family.

Contains 1 ACT domain.

Sequence caution

The sequence BAA10276.1 differs from that shown. Reason: Erroneous initiation.

Ontologies

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 172172Acetolactate synthase small subunit
PRO_0000151418

Regions

Domain4 – 7875ACT

Sequences

Sequence LengthMass (Da)Tools
Q55141 [UniParc].

Last modified May 30, 2000. Version 2.
Checksum: CF266998F9BCA806

FASTA17218,871
        10         20         30         40         50         60 
MKHTLSVLVE DEAGVLTRIA GLFARRGFNI ESLAVGSAEQ GDVSRITMVV PGDENTIEQL 

        70         80         90        100        110        120 
TKQLYKLVNV IKVQDITETP CVERELMLVK VSANAPNRAE VIELAQVFRA RIVDISEDTV 

       130        140        150        160        170 
TIEVVGDPGK MVAILQMLAK FGIKEVARTG KIALVRESGV NTEYLKSLES KF 

« Hide

References

[1]"Sequence analysis of the genome of the unicellular cyanobacterium Synechocystis sp. strain PCC6803. I. Sequence features in the 1 Mb region from map positions 64% to 92% of the genome."
Kaneko T., Tanaka A., Sato S., Kotani H., Sazuka T., Miyajima N., Sugiura M., Tabata S.
DNA Res. 2:153-166(1995) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: ATCC 27184 / PCC 6803 / N-1.
[2]"Sequence analysis of the genome of the unicellular cyanobacterium Synechocystis sp. strain PCC6803. II. Sequence determination of the entire genome and assignment of potential protein-coding regions."
Kaneko T., Sato S., Kotani H., Tanaka A., Asamizu E., Nakamura Y., Miyajima N., Hirosawa M., Sugiura M., Sasamoto S., Kimura T., Hosouchi T., Matsuno A., Muraki A., Nakazaki N., Naruo K., Okumura S., Shimpo S. expand/collapse author list , Takeuchi C., Wada T., Watanabe A., Yamada M., Yasuda M., Tabata S.
DNA Res. 3:109-136(1996) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: PCC 6803 / Kazusa.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
BA000022 Genomic DNA. Translation: BAA10276.1. Different initiation.
PIRS74358.
RefSeqNP_442206.1. NC_000911.1.
YP_007452082.1. NC_020286.1.

3D structure databases

ProteinModelPortalQ55141.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

IntActQ55141. 2 interactions.
STRING1148.sll0065.

Proteomic databases

PaxDbQ55141.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaBAA10276; BAA10276; BAA10276.
GeneID952587.
KEGGsyn:sll0065.
syz:MYO_123360.
PATRIC23842034. VBISynSp132158_2559.

Phylogenomic databases

eggNOGCOG0440.
HOGENOMHOG000046747.
KOK01653.
OMATEGPHIE.
OrthoDBEOG6X3W8W.
PhylomeDBQ55141.

Enzyme and pathway databases

UniPathwayUPA00047; UER00055.
UPA00049; UER00059.

Family and domain databases

InterProIPR004789. Acetalactate_synth_ssu.
IPR019455. Acetolactate_synth_ssu_C.
IPR002912. ACT_dom.
[Graphical view]
PfamPF01842. ACT. 1 hit.
PF10369. ALS_ss_C. 1 hit.
[Graphical view]
TIGRFAMsTIGR00119. acolac_sm. 1 hit.
PROSITEPS51671. ACT. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameILVH_SYNY3
AccessionPrimary (citable) accession number: Q55141
Entry history
Integrated into UniProtKB/Swiss-Prot: May 30, 2000
Last sequence update: May 30, 2000
Last modified: July 9, 2014
This is version 92 of the entry and version 2 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

Synechocystis PCC 6803

Synechocystis (strain PCC 6803): entries and gene names

SIMILARITY comments

Index of protein domains and families

PATHWAY comments

Index of metabolic and biosynthesis pathways