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Q5R4G2 (PA1B2_PONAB) Reviewed, UniProtKB/Swiss-Prot

Last modified May 1, 2013. Version 50. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (1) | Third-party data text xml rdf/xml gff fasta
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Names and origin

Protein namesRecommended name:
Platelet-activating factor acetylhydrolase IB subunit beta
EC=3.1.1.47
Alternative name(s):
PAF acetylhydrolase 30 kDa subunit
Short name=PAF-AH 30 kDa subunit
PAF-AH subunit beta
Short name=PAFAH subunit beta
Gene names
Name:PAFAH1B2
Synonyms:PAFAHB
OrganismPongo abelii (Sumatran orangutan) (Pongo pygmaeus abelii) [Reference proteome]
Taxonomic identifier9601 [NCBI]
Taxonomic lineageEukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Pongo

Protein attributes

Sequence length229 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
Protein existenceEvidence at transcript level

General annotation (Comments)

Function

Inactivates PAF by removing the acetyl group at the sn-2 position. This is a catalytic subunit By similarity.

Catalytic activity

1-alkyl-2-acetyl-sn-glycero-3-phosphocholine + H2O = 1-alkyl-sn-glycero-3-phosphocholine + acetate.

Subunit structure

Cytosolic PAF-AH IB is formed of three subunits of 45 kDa (alpha), 30 kDa (beta) and 29 kDa (gamma). The catalytic activity of the enzyme resides in the beta and gamma subunits, whereas the alpha subunit has regulatory activity. Trimer formation is not essential for the catalytic activity By similarity.

Subcellular location

Cytoplasm By similarity.

Sequence similarities

Belongs to the 'GDSL' lipolytic enzyme family. Platelet-activating factor acetylhydrolase IB beta/gamma subunits subfamily.

Ontologies

Keywords
   Biological processLipid degradation
Lipid metabolism
   Cellular componentCytoplasm
   Molecular functionHydrolase
   PTMAcetylation
Phosphoprotein
   Technical termComplete proteome
Reference proteome
Gene Ontology (GO)
   Biological_processlipid catabolic process

Inferred from electronic annotation. Source: UniProtKB-KW

   Cellular_componentcytoplasm

Inferred from electronic annotation. Source: UniProtKB-SubCell

   Molecular_function1-alkyl-2-acetylglycerophosphocholine esterase activity

Inferred from electronic annotation. Source: EC

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Initiator methionine11Removed By similarity
Chain2 – 229228Platelet-activating factor acetylhydrolase IB subunit beta
PRO_0000252683

Sites

Active site481 By similarity
Active site1931 By similarity
Active site1961 By similarity

Amino acid modifications

Modified residue21N-acetylserine By similarity
Modified residue21Phosphoserine By similarity

Sequences

Sequence LengthMass (Da)Tools
Q5R4G2 [UniParc].

Last modified December 21, 2004. Version 1.
Checksum: 14CF5D48621AA504

FASTA22925,569
        10         20         30         40         50         60 
MSQGDSNPAA IPHAAEDIQG DDRWMSQHNR FVLDCKDKEP DVLFVGDSMV QLMQQYEIWR 

        70         80         90        100        110        120 
ELFSPLHALN FGIGGDTTRH VLWRLKNGEL ENIKPKVIVV WVGTNNHENT AEEVAGGIEA 

       130        140        150        160        170        180 
IVQLINTRQP QAKIIVLGLL PRGEKPNPLR QKNAKVNQLL KVSLPKLANV QLLDTDGGFV 

       190        200        210        220 
HSDGAISCHD MFDFLHLTGG GYAKICKPLH ELIMQLLEET PEEKQTTIA

« Hide

References

[1]The German cDNA consortium
Submitted (NOV-2004) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
Tissue: Brain cortex.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ		CR861287 mRNA. Translation: CAH93354.1.
RefSeqNP_001126974.1. NM_001133502.1.
UniGenePab.18314.

3D structure databases

HSSPHSSP built from PDB template 1VYH based on UniProtKB P68402.
ProteinModelPortalQ5R4G2.
ModBaseSearch...

Proteomic databases

PRIDEQ5R4G2.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblENSPPYT00000004652; ENSPPYP00000004476; ENSPPYG00000003907.
GeneID100173993.
KEGGpon:100173993.

Organism-specific databases

CTD5049.

Phylogenomic databases

GeneTreeENSGT00390000016520.
HOVERGENHBG053477.
InParanoidQ5R4G2.
KOK16795.
OMALQQYEIW.

Family and domain databases

Gene3D3.40.50.1110. 1 hit.
InterProIPR013831. SGNH_hydro-type_esterase_dom.
[Graphical view]
PROSITEPS01098. LIPASE_GDSL_SER. False negative.
[Graphical view]
ProtoNetSearch...

Entry information

Entry namePA1B2_PONAB
AccessionPrimary (citable) accession number: Q5R4G2
Entry history
Integrated into UniProtKB/Swiss-Prot: October 17, 2006
Last sequence update: December 21, 2004
Last modified: May 1, 2013
This is version 50 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

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