Q9CH94 (ALR_LACLA) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Alanine racemase
EC=5.1.1.1

Gene names

Name:	alr
Synonyms:	dal
Ordered Locus Names:	LL0844
ORF Names:	L0103

Organism

Lactococcus lactis subsp. lactis (strain IL1403) (Streptococcus lactis)

Taxonomic identifier

272623 [NCBI]

Taxonomic lineage

Bacteria › Firmicutes › Lactobacillales › Streptococcaceae › Lactococcus

Protein attributes

Sequence length	367 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Provides the D-alanine required for cell wall biosynthesis By similarity. HAMAP MF_01201
Catalytic activity	L-alanine = D-alanine. HAMAP MF_01201
Cofactor	Pyridoxal phosphate By similarity. HAMAP MF_01201
Pathway	Amino-acid biosynthesis; D-alanine biosynthesis; D-alanine from L-alanine: step 1/1. HAMAP MF_01201 Cell wall biogenesis; peptidoglycan biosynthesis. HAMAP MF_01201
Sequence similarities	Belongs to the alanine racemase family.

Ontologies

Keywords
Biological process	Cell shape Cell wall biogenesis/degradation Peptidoglycan synthesis
Ligand	Pyridoxal phosphate
Molecular function	Isomerase
Technical term	Complete proteome Reference proteome
Gene Ontology (GO)
Biological process	alanine metabolic process Inferred from electronic annotation. Source: InterPro cellular cell wall organization Inferred from electronic annotation. Source: UniProtKB-KW peptidoglycan biosynthetic process Inferred from electronic annotation. Source: UniProtKB-KW regulation of cell shape Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	alanine racemase 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 – 367	367	Alanine racemase HAMAP MF_01201		PRO_0000114526
Sites
	Active site	40	1	Proton acceptor; specific for D-alanine By similarity
	Active site	263	1	Proton acceptor; specific for L-alanine By similarity
Amino acid modifications
	Modified residue	40	1	N6-(pyridoxal phosphate)lysine By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q9CH94 [UniParc]. Last modified June 1, 2001. Version 1. Checksum: 83E5F6F558F3627B	FASTA	367	40,689
	10 20 30 40 50 60 MKTSPHRNTS AIVDLKAIRN NIEKFKKHIH PNAEIWPAVK ADAYGHGSVE VSKAVSDLVG 70 80 90 100 110 120 GFCVSNLDEA IELRNHLVTK PILVLSGIVP EDVDIAAALN ISLTAPSLEW LKLVVQEEAE 130 140 150 160 170 180 LSDLKIHIGV DSGMGRIGIR DVEEANQMIE LADKYAINFE GIFTHFATAD MADDTKFKDQ 190 200 210 220 230 240 QARFNKIMAG LSRKPKFVHS TNTAAALWHK EQVQAIERLG ISMYGLNPSG KTLELPFEIE 250 260 270 280 290 300 PALSLVSELT HIKKIAAGET VGYGATYETS EETWIGTVPI GYADGWTRQM QGFKVLVNGE 310 320 330 340 350 360 FCEIVGRVCM DQMMIKLDKS YPLGTKVTLI GRDKTNEITT TDVADWRGTI NYEVLCLLSD RIKRIYK

References

[1]	"The complete genome sequence of the lactic acid bacterium Lactococcus lactis ssp. lactis IL1403." Bolotin A., Wincker P., Mauger S., Jaillon O., Malarme K., Weissenbach J., Ehrlich S.D., Sorokin A. Genome Res. 11:731-753(2001) [PubMed: 11337471] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: IL1403.
+	Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AE005176 Genomic DNA. Translation: AAK04942.1.
PIR	D86730.
RefSeq	NP_267000.1. NC_002662.1.
3D structure databases
ProteinModelPortal	Q9CH94.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	1114472.
GenomeReviews	Gene locus LL0844 in contig AE005176_GR.
KEGG	lla:L0103.
NMPDR	fig|272623.1.peg.864.
PATRIC	22293992. VBILacLac136773_0903.
Phylogenomic databases
HOGENOM	HBG712172.
OMA	TRKEDAN.
ProtClustDB	PRK00053.
Enzyme and pathway databases
BioCyc	LLAC272623:L0103-MONOMER.
Family and domain databases
HAMAP	MF_01201. Ala_racemase. [Tree]
InterPro	IPR000821. Ala_racemase. IPR009006. Ala_racemase/Decarboxylase_C. IPR011079. Ala_racemase_C. IPR001608. Ala_racemase_N. IPR020622. Ala_racemase_pyridoxalP-BS. [Graphical view]
Gene3D	G3DSA:2.40.37.10. Ala_racemase/Decarboxylase_C. 1 hit.
KO	K01775.
Pfam	PF00842. Ala_racemase_C. 1 hit. PF01168. Ala_racemase_N. 1 hit. [Graphical view]
PRINTS	PR00992. ALARACEMASE.
SMART	SM01005. Ala_racemase_C. 1 hit. [Graphical view]
SUPFAM	SSF50621. Racem_decarbox_C. 1 hit.
TIGRFAMs	TIGR00492. Alr. 1 hit.
PROSITE	PS00395. ALANINE_RACEMASE. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

ALR_LACLA

Accession

Primary (citable) accession number: Q9CH94

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 23, 2002
Last sequence update:	June 1, 2001
Last modified:	January 25, 2012
This is version 71 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program