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Protein

5-methyltetrahydropteroyltriglutamate--homocysteine methyltransferase

Gene

MET6

Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Catalyzes the transfer of a methyl group from 5-methyltetrahydrofolate to homocysteine resulting in methionine formation.

Miscellaneous

Present with 264000 molecules/cell in log phase SD medium.1 Publication

Catalytic activityi

5-methyltetrahydropteroyltri-L-glutamate + L-homocysteine = tetrahydropteroyltri-L-glutamate + L-methionine.

Cofactori

Zn2+By similarity

Pathwayi: L-methionine biosynthesis via de novo pathway

This protein is involved in step 1 of the subpathway that synthesizes L-methionine from L-homocysteine (MetE route).
Proteins known to be involved in this subpathway in this organism are:
  1. 5-methyltetrahydropteroyltriglutamate--homocysteine methyltransferase (MET6)
This subpathway is part of the pathway L-methionine biosynthesis via de novo pathway, which is itself part of Amino-acid biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes L-methionine from L-homocysteine (MetE route), the pathway L-methionine biosynthesis via de novo pathway and in Amino-acid biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi655ZincBy similarity1
Metal bindingi657ZincBy similarity1
Metal bindingi737ZincBy similarity1

GO - Molecular functioni

GO - Biological processi

  • homocysteine metabolic process Source: GO_Central
  • methionine biosynthetic process Source: SGD

Keywordsi

Molecular functionMethyltransferase, Transferase
Biological processAmino-acid biosynthesis, Methionine biosynthesis
LigandMetal-binding, Zinc

Enzyme and pathway databases

BioCyciMetaCyc:YER091C-MONOMER.
YEAST:YER091C-MONOMER.
BRENDAi2.1.1.14. 984.
UniPathwayiUPA00051; UER00082.

Names & Taxonomyi

Protein namesi
Recommended name:
5-methyltetrahydropteroyltriglutamate--homocysteine methyltransferase (EC:2.1.1.14)
Alternative name(s):
Cobalamin-independent methionine synthase
Delta-P8 protein
Methionine synthase, vitamin-B12 independent isozyme
Gene namesi
Name:MET6
Ordered Locus Names:YER091C
OrganismiSaccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
Taxonomic identifieri559292 [NCBI]
Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaSaccharomycotinaSaccharomycetesSaccharomycetalesSaccharomycetaceaeSaccharomyces
Proteomesi
  • UP000002311 Componenti: Chromosome V

Organism-specific databases

EuPathDBiFungiDB:YER091C.
SGDiS000000893. MET6.

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemoved1 Publication
ChainiPRO_00000987042 – 7675-methyltetrahydropteroyltriglutamate--homocysteine methyltransferaseAdd BLAST766

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei89PhosphoserineCombined sources1
Modified residuei242PhosphoserineCombined sources1
Modified residuei566PhosphothreonineCombined sources1
Modified residuei629PhosphoserineCombined sources1
Modified residuei706PhosphoserineCombined sources1

Keywords - PTMi

Phosphoprotein

Proteomic databases

MaxQBiP05694.
PRIDEiP05694.
TopDownProteomicsiP05694.

2D gel databases

SWISS-2DPAGEiP05694.

PTM databases

iPTMnetiP05694.

Interactioni

Binary interactionsi

Show more details

Protein-protein interaction databases

BioGridi36836. 141 interactors.
DIPiDIP-6472N.
IntActiP05694. 23 interactors.
MINTiMINT-677379.
STRINGi4932.YER091C.

Structurei

3D structure databases

ProteinModelPortaliP05694.
SMRiP05694.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Phylogenomic databases

HOGENOMiHOG000246221.
InParanoidiP05694.
KOiK00549.
OMAiGRNIWKN.
OrthoDBiEOG092C0LN1.

Family and domain databases

HAMAPiMF_00172. Meth_synth. 1 hit.
InterProiView protein in InterPro
IPR013215. Cbl-indep_Met_Synth_N.
IPR006276. Cobalamin-indep_Met_synthase.
IPR002629. Met_Synth_C/arc.
PfamiView protein in Pfam
PF08267. Meth_synt_1. 1 hit.
PF01717. Meth_synt_2. 1 hit.
PIRSFiPIRSF000382. MeTrfase_B12_ind. 1 hit.
TIGRFAMsiTIGR01371. met_syn_B12ind. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P05694-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MVQSAVLGFP RIGPNRELKK ATEGYWNGKI TVDELFKVGK DLRTQNWKLQ
60 70 80 90 100
KEAGVDIIPS NDFSFYDQVL DLSLLFNVIP DRYTKYDLSP IDTLFAMGRG
110 120 130 140 150
LQRKATETEK AVDVTALEMV KWFDSNYHYV RPTFSKTTQF KLNGQKPVDE
160 170 180 190 200
FLEAKELGIH TRPVLLGPVS YLFLGKADKD SLDLEPLSLL EQLLPLYTEI
210 220 230 240 250
LSKLASAGAT EVQIDEPVLV LDLPANAQAA IKKAYTYFGE QSNLPKITLA
260 270 280 290 300
TYFGTVVPNL DAIKGLPVAA LHVDFVRAPE QFDEVVAAIG NKQTLSVGIV
310 320 330 340 350
DGRNIWKNDF KKSSAIVNKA IEKLGADRVV VATSSSLLHT PVDLNNETKL
360 370 380 390 400
DAEIKGFFSF ATQKLDEVVV ITKNVSGQDV AAALEANAKS VESRGKSKFI
410 420 430 440 450
HDAAVKARVA SIDEKMSTRA APFEQRLPEQ QKVFNLPLFP TTTIGSFPQT
460 470 480 490 500
KDIRINRNKF NKGTISAEEY EKFINSEIEK VIRFQEEIGL DVLVHGEPER
510 520 530 540 550
NDMVQYFGEQ INGYAFTVNG WVQSYGSRYV RPPIIVGDLS RPKAMSVKES
560 570 580 590 600
VYAQSITSKP VKGMLTGPIT CLRWSFPRDD VDQKTQAMQL ALALRDEVND
610 620 630 640 650
LEAAGIKVIQ VDEPALREGL PLREGTERSA YYTWAAEAFR VATSGVANKT
660 670 680 690 700
QIHSHFCYSD LDPNHIKALD ADVVSIEFSK KDDANYIAEF KNYPNHIGLG
710 720 730 740 750
LFDIHSPRIP SKDEFIAKIS TILKSYPAEK FWVNPDCGLK TRGWEETRLS
760
LTHMVEAAKY FREQYKN
Length:767
Mass (Da):85,860
Last modified:January 23, 2007 - v4
Checksum:iA553C9A98D35541D
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti72 – 80LSLLFNVIP → FVFVVQCHS in CAA30227 (Ref. 6) Curated9
Sequence conflicti407A → R in AAA65711 (Ref. 2) Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U32508 Genomic DNA. Translation: AAB60301.1.
U15099 Genomic DNA. Translation: AAA65711.1.
DQ393811 Genomic DNA. Translation: ABD57965.1.
DQ393812 Genomic DNA. Translation: ABD57966.1.
U18839 Genomic DNA. Translation: AAB64646.1.
X07238 Genomic DNA. Translation: CAA30227.1.
BK006939 Genomic DNA. Translation: DAA07752.1.
PIRiS50594.
RefSeqiNP_011015.3. NM_001178982.3.

Genome annotation databases

EnsemblFungiiYER091C; YER091C; YER091C.
GeneIDi856825.
KEGGisce:YER091C.

Similar proteinsi

Entry informationi

Entry nameiMETE_YEAST
AccessioniPrimary (citable) accession number: P05694
Secondary accession number(s): D3DLZ8
, P38010, Q02488, Q27JJ8
Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 1, 1988
Last sequence update: January 23, 2007
Last modified: September 27, 2017
This is version 171 of the entry and version 4 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families
  3. Yeast
    Yeast (Saccharomyces cerevisiae): entries, gene names and cross-references to SGD
  4. Yeast chromosome V
    Yeast (Saccharomyces cerevisiae) chromosome V: entries and gene names