Reviewed, UniProtKB/Swiss-Prot Q83A62 (METE_COXBU)

Names and origin

Protein names

Recommended name:
    5-methyltetrahydropteroyltriglutamate--homocysteine methyltransferase
    EC=2.1.1.14
Alternative name(s):
    Methionine synthase, vitamin-B12 independent isozyme
    Cobalamin-independent methionine synthase

Gene names

Name:	metE
Ordered Locus Names:	CBU_2048

Organism

Coxiella burnetii [Complete proteome] [HAMAP]

Taxonomic identifier

777 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Legionellales › Coxiellaceae › Coxiella

Protein attributes

Sequence length	775 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Catalyzes the transfer of a methyl group from 5-methyltetrahydrofolate to homocysteine resulting in methionine formation By similarity.
Catalytic activity	5-methyltetrahydropteroyltri-L-glutamate + L-homocysteine = tetrahydropteroyltri-L-glutamate + L-methionine. HAMAP MF_00172
Cofactor	Binds 1 zinc ion per subunit By similarity.
Pathway	Amino-acid biosynthesis; L-methionine biosynthesis via de novo pathway; L-methionine from L-homocysteine (MetE route): step 1/1. HAMAP MF_00172
Sequence similarities	Belongs to the vitamin-B12 independent methionine synthase family.

Ontologies

Keywords
Biological process	Amino-acid biosynthesis Methionine biosynthesis
Domain	Repeat
Ligand	Metal-binding Zinc
Molecular function	Methyltransferase Transferase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	methionine biosynthetic process Inferred from electronic annotation. Source: HAMAP
Molecular function	5-methyltetrahydropteroyltriglutamate-homocysteine S-methyltransferase activity Inferred from electronic annotation. Source: HAMAP zinc ion binding Inferred from electronic annotation. Source: UniProtKB-KW
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 775	775	5-methyltetrahydropteroyltriglutamate--homocysteine methyltransferase HAMAP MF_00172		PRO_0000098628
Sites
	Metal binding	645	1	Zinc By similarity
	Metal binding	647	1	Zinc By similarity
	Metal binding	730	1	Zinc By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q83A62-1 [UniParc]. Last modified June 1, 2003. Version 1. Checksum: 034FFAA70159359C	FASTA	775	88,421
	10 20 30 40 50 60 MVYAHNLGFP RIGIKREMKK TVEAYWRGEI SQQQLQQQAI ELQLTNWKIQ AEAGVDLIPV 70 80 90 100 110 120 GDFSWYDHVL DMAVRVGAIP SRFKALNSNI TDTMFCMARG QAPNGIETSA CEMTKWFDTN 130 140 150 160 170 180 YHYIVPEFTT NQSFELHHDD LFKSTKLALE NNYRAKPVIL GPLSFLWLGK CKGESFNKLL 190 200 210 220 230 240 LLEKLLPVYA EIFEQLSSLG VEWVQVDEPI LVLDLPPEWQ QAFLTTYQQL NFFNLKCLLA 250 260 270 280 290 300 TYFGSLDDNL SLTCQLPVDG LHIDYCRAPD QLDSVLSQLP AEKILSVGII DGRNIWCNDL 310 320 330 340 350 360 NRSLTLLENI QSSLGDRLWV APSCSLLHVP IDLDQENKLD VELKSWFAFA KQKVAEAAFL 370 380 390 400 410 420 TRGLREGRES IGAELKKNEE VIISRKTSKR IHNPNVEKKA ASVTERLMRR QHEHSIRKNK 430 440 450 460 470 480 QTAQLNLPLF PTTTIGSFPQ TSQIRCLRRD YKQGKIDDAL YEEKIRQEIA EVIGIQVKLG 490 500 510 520 530 540 LDVLVHGEPE RNDMVEYFGE LLDGIAITSN GWVQSYGSRC VKPPIIFGDV SRERPMTLRW 550 560 570 580 590 600 IEYAQSLTTK SVKGMLTGPV TILAWSFVRD DQPRSQTAKQ IALALRDEVQ DLERSGVRVI 610 620 630 640 650 660 QIDEPAFREC LPLRKAAWQD YLEWAVKCFR LASCGVKDET QIHTHMCYSE FNDIIEAIAA 670 680 690 700 710 720 LDADVITIES SRSEMEILKS FEKFAYPNDI GPGIYDIHSP RIPRVAEIEE LAVRALQYIP 730 740 750 760 770 IERLWINPDC GLKTRNWEET KEALSRMVDA AKHLRKAFSS EKTPTIDLEL QPAST

References

[1]

"Complete genome sequence of the Q-fever pathogen, Coxiella burnetii." Seshadri R., Paulsen I.T., Eisen J.A., Read T.D., Nelson K.E., Nelson W.C., Ward N.L., Tettelin H., Davidsen T.M., Beanan M.J., DeBoy R.T., Daugherty S.C., Brinkac L.M., Madupu R., Dodson R.J., Khouri H.M., Lee K.H., Carty H.A. , Scanlan D., Heinzen R.A., Thompson H.A., Samuel J.E., Fraser C.M., Heidelberg J.F. Proc. Natl. Acad. Sci. U.S.A. 100:5455-5460(2003) [PubMed: 12704232] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Nine Mile phase I / RSA 493.

Cross-references

Sequence databases
EMBLGenBankDDBJ	AE016828 Genomic DNA. Translation: AAO91533.1.
RefSeq	NP_821019.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	1209961.
GenomeReviews	Gene locus CBU_2048 in contig AE016828_GR.
KEGG	cbu:CBU_2048.
NMPDR	fig|227377.1.peg.1963.
TIGR	CBU_2048.
Phylogenomic databases
HOGENOM	Q83A62.
OMA	CSLLHTP.
Enzyme and pathway databases
BioCyc	CBUR227377:CBU_2048-MON.
BRENDA	2.1.1.14. 256353.
Family and domain databases
HAMAP	MF_00172. [Tree]
InterPro	IPR013215. Cbl-indep_Met_Synth_N. IPR002629. Methionine_synth. IPR006276. MeTrfase_B12_ind. [Graphical view]
Pfam	PF08267. Meth_synt_1. 1 hit. PF01717. Meth_synt_2. 1 hit. [Graphical view]
PIRSF	PIRSF000382. MeTrfase_B12_ind. 1 hit.
ProDom	PD004692. Methionine_synth. 1 hit. [Graphical view] [Entries sharing at least one domain]
TIGRFAMs	TIGR01371. met_syn_B12ind. 1 hit.
ProtoNet	Search...

Entry information

Entry name

METE_COXBU

Accession

Primary (citable) accession number: Q83A62

Entry history

Integrated into UniProtKB/Swiss-Prot:	August 16, 2004
Last sequence update:	June 1, 2003
Last modified:	November 3, 2009
This is version 39 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)