Q8K9U7 (PANC_BUCAP) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Pantothenate synthetase
Short name=PS
EC=6.3.2.1

Alternative name(s):
Pantoate--beta-alanine ligase
Pantoate-activating enzyme

Gene names

Name:	panC
Ordered Locus Names:	BUsg_190

Organism

Buchnera aphidicola subsp. Schizaphis graminum (strain Sg) [Complete proteome] [HAMAP]

Taxonomic identifier

198804 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › Buchnera

Protein attributes

Sequence length	285 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Catalyzes the condensation of pantoate with beta-alanine in an ATP-dependent reaction via a pantoyl-adenylate intermediate By similarity. HAMAP MF_00158
Catalytic activity	ATP + (R)-pantoate + beta-alanine = AMP + diphosphate + (R)-pantothenate. HAMAP MF_00158
Pathway	Cofactor biosynthesis; (R)-pantothenate biosynthesis; (R)-pantothenate from (R)-pantoate and beta-alanine: step 1/1. HAMAP MF_00158
Subunit structure	Homodimer By similarity. HAMAP MF_00158
Subcellular location	Cytoplasm Potential HAMAP MF_00158.
Miscellaneous	The reaction proceeds by a bi uni uni bi ping pong mechanism By similarity. HAMAP MF_00158
Sequence similarities	Belongs to the pantothenate synthetase family.

Ontologies

Keywords
Biological process	Pantothenate biosynthesis
Cellular component	Cytoplasm
Ligand	ATP-binding Nucleotide-binding
Molecular function	Ligase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	pantothenate biosynthetic process Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	ATP binding Inferred from electronic annotation. Source: UniProtKB-KW pantoate-beta-alanine ligase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 285	285	Pantothenate synthetase HAMAP MF_00158		PRO_0000128213
Regions
	Nucleotide binding	30 – 37	8	ATP By similarity
	Nucleotide binding	149 – 152	4	ATP By similarity
	Nucleotide binding	186 – 189	4	ATP By similarity
Sites
	Active site	37	1	Proton donor By similarity
	Binding site	61	1	Beta-alanine By similarity
	Binding site	61	1	Pantoate By similarity
	Binding site	155	1	Pantoate By similarity
	Binding site	178	1	ATP; via amide nitrogen and carbonyl oxygen By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q8K9U7 [UniParc]. Last modified October 1, 2002. Version 1. Checksum: 28DEE9F09FE84B53	FASTA	285	32,965
	10 20 30 40 50 60 MNIIKNINLL EKKIKELKKK NKIIGLVPTM GNLHDGHIKL ILLAKKNVDI VIVSIFINPM 70 80 90 100 110 120 QFEDLLDLKK YPKTFEQDCC ILKQEKVEIL FCPDVNEMYP LGLKNHTYID VPKLSKIIEG 130 140 150 160 170 180 KVRPGHFIGV TTIVCKLFNL IQPNFSFFGE KDYQQLLIIK KLVKELNYPI KIISLPIIRL 190 200 210 220 230 240 KNGLAFSSRN KHLSDLAQQK ASYLYQAIKQ TCNFIKNNNG KNIKKNIHTS RKYLIKKGFY 250 260 270 280 IDIFNAYDSK TLDPISKDSK NIIIIASVWL GKIRLIDNKK IILRD

References

[1]	"50 million years of genomic stasis in endosymbiotic bacteria." Tamas I., Klasson L., Canbaeck B., Naeslund A.K., Eriksson A.-S., Wernegreen J.J., Sandstroem J.P., Moran N.A., Andersson S.G.E. Science 296:2376-2379(2002) [PubMed: 12089438] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Sg.
+	Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AE013218 Genomic DNA. Translation: AAM67755.1.
RefSeq	NP_660544.1. NC_004061.1.
3D structure databases
ProteinModelPortal	Q8K9U7.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
EnsemblBacteria	EBBUCT00000000301; EBBUCP00000000301; EBBUCG00000000301.
GeneID	1005387.
GenomeReviews	Gene locus BUsg_190 in contig AE013218_GR.
KEGG	bas:BUsg190.
PATRIC	21247163. VBIBucAph100086_0195.
Organism-specific databases
CMR	Search...
Phylogenomic databases
GeneTree	EBGT00050000007772.
HOGENOM	HBG428839.
OMA	EMDGLAM.
ProtClustDB	PRK00380.
Enzyme and pathway databases
BioCyc	BAPH198804:BUSG190-MONOMER.
Family and domain databases
HAMAP	MF_00158. PanC. [Tree]
InterPro	IPR003721. Pantoate_ligase. IPR014729. Rossmann-like_a/b/a_fold. [Graphical view]
Gene3D	G3DSA:3.40.50.620. Rossmann-like_a/b/a_fold. 1 hit.
KO	K01918.
PANTHER	PTHR21299:SF1. Pantoate_ligase. 1 hit.
Pfam	PF02569. Pantoate_ligase. 1 hit. [Graphical view]
TIGRFAMs	TIGR00018. PanC. 1 hit.
ProtoNet	Search...

Entry information

Entry name

PANC_BUCAP

Accession

Primary (citable) accession number: Q8K9U7

Entry history

Integrated into UniProtKB/Swiss-Prot:	November 15, 2002
Last sequence update:	October 1, 2002
Last modified:	January 25, 2012
This is version 55 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program