1XDJ - JenaLib

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Asym. Unit - sites (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF T. MARITIMA COBALAMIN-INDEPENDENT METHIONINE SYNTHASE COMPLEXED WITH ZN2+ AND HOMOCYSTEINE

Authors :   R. Pejchal, M. L. Ludwig

Date :   06 Sep 04 (Deposition) - 01 Mar 05 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.20

Chains :   Asym. Unit : A,B
Biol. Unit 1: A  (1x)
Biol. Unit 2: B  (1x)

Keywords :   Tim Barrel, Homocysteine, Methyltetrahydrofolate, Zinc, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   R. Pejchal, M. L. Ludwig
Cobalamin-Independent Methionine Synthase (Mete): A Face-To-Face Double Barrel That Evolved By Gene Duplication
Plos Biol. V. 3 E31 2005
PubMed-ID: 15630480 | Reference-DOI: 10.1371/JOURNAL.PBIO.0030031
(for further references see the PDB file header)

Molecule 1 - 5-METHYLTETRAHYDROPTEROYLTRIGLUTAMATE-- HOMOCYSTEINE METHYLTRANSFERASE
	Chains	:	A, B
	EC Number	:	2.1.1.14
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET-151-D-TOPO
	Expression System Strain	:	BL21 STAR(DE3)
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Gene	:	METE
	Organism Scientific	:	THERMOTOGA MARITIMA
	Organism Taxid	:	2336
	Synonym	:	METHIONINE SYNTHASE, VITAMIN-B12 INDEPENDENT ISOZYME, COBALAMIN-INDEPENDENT METHIONINE SYNTHASE

		1	2
Asymmetric Unit	:	A	B
Biological Unit 1 (1x)	:	A
Biological Unit 2 (1x)	:		B

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (5, 42)

No.	Name	Count	Type	Full Name
1	HCS	2	Ligand/Ion	2-AMINO-4-MERCAPTO-BUTYRIC ACID
2	MRY	2	Ligand/Ion	MESO-ERYTHRITOL
3	MSE	34	Mod. Amino Acid	SELENOMETHIONINE
4	SO4	2	Ligand/Ion	SULFATE ION
5	ZN	2	Ligand/Ion	ZINC ION

Biological Unit 1 (4, 21)

No.	Name	Count	Type	Full Name
1	HCS	2	Ligand/Ion	2-AMINO-4-MERCAPTO-BUTYRIC ACID
2	MRY	1	Ligand/Ion	MESO-ERYTHRITOL
3	MSE	17	Mod. Amino Acid	SELENOMETHIONINE
4	SO4	1	Ligand/Ion	SULFATE ION
5	ZN	-1	Ligand/Ion	ZINC ION

Biological Unit 2 (3, 19)

No.	Name	Count	Type	Full Name
1	HCS	-1	Ligand/Ion	2-AMINO-4-MERCAPTO-BUTYRIC ACID
2	MRY	1	Ligand/Ion	MESO-ERYTHRITOL
3	MSE	17	Mod. Amino Acid	SELENOMETHIONINE
4	SO4	1	Ligand/Ion	SULFATE ION
5	ZN	-1	Ligand/Ion	ZINC ION

Asymmetric Unit (8, 8)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ARG B:85 , TYR B:388 , ARG B:391 , GLU B:635 , LYS B:662 , HOH B:990	BINDING SITE FOR RESIDUE SO4 B 1047
2	AC2	SOFTWARE	ARG A:85 , TYR A:388 , ARG A:391 , GLU A:635 , LYS A:662	BINDING SITE FOR RESIDUE SO4 A 1048
3	AC3	SOFTWARE	HIS A:618 , CYS A:620 , GLU A:642 , CYS A:704 , HCS A:1049	BINDING SITE FOR RESIDUE ZN A 1051
4	AC4	SOFTWARE	HCS A:1050 , HIS B:618 , CYS B:620 , GLU B:642 , CYS B:704	BINDING SITE FOR RESIDUE ZN B 1052
5	AC5	SOFTWARE	ILE A:409 , GLY A:410 , SER A:411 , GLU A:462 , MSE A:529 , ASP A:577 , HIS A:618 , CYS A:620 , CYS A:704 , GLY A:705 , ZN A:1051	BINDING SITE FOR RESIDUE HCS A 1049
6	AC6	SOFTWARE	ILE B:409 , GLY B:410 , SER B:411 , GLU B:462 , MSE B:529 , ASP B:577 , HIS B:618 , CYS B:620 , CYS B:704 , GLY B:705 , ZN B:1052	BINDING SITE FOR RESIDUE HCS A 1050
7	AC7	SOFTWARE	PHE A:106 , LEU A:156 , ARG A:165 , CYS A:205 , HOH A:815	BINDING SITE FOR RESIDUE MRY A 1053
8	AC8	SOFTWARE	PHE B:106 , LEU B:156 , ARG B:165 , CYS B:205 , ILE B:587 , HOH B:915	BINDING SITE FOR RESIDUE MRY B 1054

(no "SS Bond" information available for 1XDJ)

(no "Cis Peptide Bond" information available for 1XDJ)

(no "SAP(SNP)/Variant" information available for 1XDJ)

(no "PROSITE Motif" information available for 1XDJ)

(no "Exon" information available for 1XDJ)

Asymmetric Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
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Chain A from PDB  Type:PROTEIN  Length:722
 aligned with METE_THEMA | Q9X112 from UniProtKB/Swiss-Prot  Length:734

    Alignment length:733
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490       500       510       520       530       540       550       560       570       580       590       600       610       620       630       640       650       660       670       680       690       700       710       720       730   
           METE_THEMA     1 MKAYAFGFPKIGEKREFKKALEDFWKGKITEEQFEEEMNKLRMYMVENYRKNVDVIPSNELSYYDFVLDTAVMVGAVPERFGEYRGLSTYFDMARGGKALEMTKFFNTNYHYLVPEIETEEFYLLENKPLEDYLFFKSKGIETAPWVIGPFTFLYLSKRNGEWIRRPNQMEKLLESLVSVYKEVFEKLVENGCKEILVNEPAFVCDLEKAHWDLILNVYRELSEFPLTVFTYYDSVSDYEACVSLPVKRLHFDFVSNEENLKNLEKHGFPEDKKLVAGVINGRQPWKVDLRKVASLVEKLGASAISNSCPLFHLPVTLELENNLPGGLKEKLAFAKEKLEELKMLKDFLEGKTFDLPNVSFEDFAVDLQAVERVRNLPEDSFRREKEYTERDRIQRERLNLPLFPTTTIGSFPQTPEVRKMRSKYRKGEISKEEYEAFIKEQIKKAIELQEEIGLDVLVHGEFERTDMVEFFAEKLNGIATTQNGWVLSYGSRCYRPPIIYGTVTRPEPMTLKEITYAQSLTEKPVKGMLTGPVTIMSWSYYREDIPEREIAYQIALAINEEVKDLEEAGIKIVQIDEPAFREKAPIKKSKWPEYFEWAINAFNLAANARPETQIHAHMCYSDFNEIIEYIHQLEFDVISIEASRSKGEIISAFENFKGWIKQIGVGVWDIHSPAVPSINEMREIVERVLRVLPKELIWINPDCGLKTRNWDEVIPSLRNMVALAKEMREKFE 733
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 1xdjA01 A:1-363,A:483-497  [code=3.20.20.210, no name defined]                                                                                                                                                                                                                                                                                                             1xdjA02 A:364 -482,A:498-733  [code=3.20.20.210, no name defined]                                                      1xdjA01        1xdjA02 A:364-482,A:498-733  [code=3.20.20.210, no name defined]                                                                                                                                                                             CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .ee...........hhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhh.....ee......hhhhhhhhhh...hhhhh...hhhhhhhhhh......eee......eee.............hhhhhhhhhhhhh....eeeeehhhhhhhh.ee..ee..hhhhhhhhhhhhhhhhhhhhhhhhhh....eeee.hhhhh..hhhhhhhhhhhhhh.....eeee.......hhhhhh.....eeeee....hhhhhhhhhhh.....eeeeeee........hhhhhhhhhhhh...eeee..hhhhh.............hhhhh.hhhhhhhhhhhhhhhh.----------......hhhhhhhhhh-hhhhh....hhhhhhhhhhhhhh..............hhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhh..............hhhhhh..eeee......eeee..eee...eeeeeee.....hhhhhhhhhhh......eeeehhhhhhhh.ee....hhhhhhhhhhhhhhhhhhhhhhh...eeeee.hhhhhh...hhhhhhhhhhhhhhhhhhhh......eeeee........hhhhhh.....eeeee.....hhhhhhhhh......eeeee..........hhhhhhhhhhhhh...hhh.eeee........hhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1xdj A   1 TKAYAFGFPKIGEKREFKKALEDFWKGKITEEQFEEEmNKLRmYmVENYRKNVDVIPSNELSYYDFVLDTAVmVGAVPERFGEYRGLSTYFDmARGGKALEmTKFFNTNYHYLVPEIETEEFYLLENKPLEDYLFFKSKGIETAPWVIGPFTFLYLSKRNGEWIRRPNQmEKLLESLVSVYKEVFEKLVENGCKEILVNEPAFVCDLEKAHWDLILNVYRELSEFPLTVFTYYDSVSDYEACVSLPVKRLHFDFVSNEENLKNLEKHGFPEDKKLVAGVINGRQPWKVDLRKVASLVEKLGASAISNSCPLFHLPVTLELENNLPGGLKEKLAFAKEKLEELKmLKDFLE----------FEDFAVDLQAVERVRN-PEDSFRREKEYTERDRIQRERLNLPLFPTTTIGSFPQTPEVRKmRSKYRKGEISKEEYEAFIKEQIKKAIELQEEIGLDVLVHGEFERTDmVEFFAEKLNGIATTQNGWVLSYGSRCYRPPIIYGTVTRPEPmTLKEITYAQSLTEKPVKGmLTGPVTImSWSYYREDIPEREIAYQIALAINEEVKDLEEAGIKIVQIDEPAFREKAPIKKSKWPEYFEWAINAFNLAANARPETQIHAHmCYSDFNEIIEYIHQLEFDVISIEASRSKGEIISAFENFKGWIKQIGVGVWDIHSPAVPSINEmREIVERVLRVLPKELIWINPDCGLKTRNWDEVIPSLRNmVALAKEmREKFE 733
                                    10        20        30       |40  | |   50        60        70  |     80        90  |    100 |     110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340   |   350         -|      370     | 380       390       400       410       420|      430       440       450       460       470       480       490       500       510       520       530      |540       550       560       570       580       590       600       610       620       630       640       650       660       670       680 |     690       700       710       720|      730   
                                                                38-MSE| |                          73-MSE              93-MSE  102-MSE                                                             170-MSE                                                                                                                                                                       344-MSE50        361            376 |                                        421-MSE                                        468-MSE                                   510-MSE            529-MSE 537-MSE                                                                           619-MSE                                                        682-MSE                                721-MSE  |     
                                                                     43-MSE                                                                                                                                                                                                                                                                                                                                        378                                                                                                                                                                                                                                                                                                                                                           728-MSE 
                                                                       45-MSE

Chain B from PDB  Type:PROTEIN  Length:712
 aligned with METE_THEMA | Q9X112 from UniProtKB/Swiss-Prot  Length:734

    Alignment length:731
                             1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
                             |       9        19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559       569       579       589       599       609       619       629       639       649       659       669       679       689       699       709       719       729 
           METE_THEMA     - -MKAYAFGFPKIGEKREFKKALEDFWKGKITEEQFEEEMNKLRMYMVENYRKNVDVIPSNELSYYDFVLDTAVMVGAVPERFGEYRGLSTYFDMARGGKALEMTKFFNTNYHYLVPEIETEEFYLLENKPLEDYLFFKSKGIETAPWVIGPFTFLYLSKRNGEWIRRPNQMEKLLESLVSVYKEVFEKLVENGCKEILVNEPAFVCDLEKAHWDLILNVYRELSEFPLTVFTYYDSVSDYEACVSLPVKRLHFDFVSNEENLKNLEKHGFPEDKKLVAGVINGRQPWKVDLRKVASLVEKLGASAISNSCPLFHLPVTLELENNLPGGLKEKLAFAKEKLEELKMLKDFLEGKTFDLPNVSFEDFAVDLQAVERVRNLPEDSFRREKEYTERDRIQRERLNLPLFPTTTIGSFPQTPEVRKMRSKYRKGEISKEEYEAFIKEQIKKAIELQEEIGLDVLVHGEFERTDMVEFFAEKLNGIATTQNGWVLSYGSRCYRPPIIYGTVTRPEPMTLKEITYAQSLTEKPVKGMLTGPVTIMSWSYYREDIPEREIAYQIALAINEEVKDLEEAGIKIVQIDEPAFREKAPIKKSKWPEYFEWAINAFNLAANARPETQIHAHMCYSDFNEIIEYIHQLEFDVISIEASRSKGEIISAFENFKGWIKQIGVGVWDIHSPAVPSINEMREIVERVLRVLPKELIWINPDCGLKTRNWDEVIPSLRNMVALAKEMRE 730
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 1xdjB01 B:0-353,B:483-497  [code=3.20.20.210, no name defined]                                                                                                                                                                                                                                                                                                              1xdjB02 B:364 -482,B:498-730  [code=3.20.20.210, no name d        efined]                                              1xdjB01        1xdjB02 B:364-482,B:498-730  [code=3.20.20.210, no name defined]                                                                                                                                                                          CATH domains
           Pfam domains (1) --Meth_synt_1-1xdjB01 B:2-305                                                                                                                                                                                                                                                                                     ------------------------------------------------          ------------- --------------------------Meth_synt_2-1xdjB0        3 B:404-727                                                                                                                                                                                                                                                                                               --- Pfam domains (1)
           Pfam domains (2) --Meth_synt_1-1xdjB02 B:2-305                                                                                                                                                                                                                                                                                     ------------------------------------------------          ------------- --------------------------Meth_synt_2-1xdjB0        4 B:404-727                                                                                                                                                                                                                                                                                               --- Pfam domains (2)
         Sec.struct. author ..ee...........hhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhh.....ee......hhhhhhhhhh...hhhhh...hhhhhhhhhh.....eeee......eeee............hhhhhhhhhhhh.....eeeeehhhhhhhhhee..ee..hhhhhhhhhhhhhhhhhhhhhhhhh.....eeee.hhhhh..hhhhhhhhhhhhhhhh...eeee.......hhhhhhh....eeeee....hhhhhhhhhhh.....eeeeeee........hhhhhhhhhhhhh..eeee..hhhhh.............hhhhh.hhhhhhhhhhhhhhhhh...----------...hhhhhhhhhh-hhhhhh...hhhhhhhhhhhhhh..............hhhhhhh--------.hhhhhhhhhhhhhhhhhhhhhhhh..............hhhhhh..eeee......eeee..eee...eeeeeee.....hhhhhhhhhh......eeeeehhhhhhhhhee....hhhhhhhhhhhhhhhhhhhhhh....eeeee.hhhhhh...hhhhhhhhhhhhhhhhhhhh......eeeee........hhhhhh.....eeeee.....hhhhhhhhh......eeeee..........hhhhhhhhhhhhh...hhh.eeee........hhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1xdj B   0 FTKAYAFGFPKIGEKREFKKALEDFWKGKITEEQFEEEmNKLRmYmVENYRKNVDVIPSNELSYYDFVLDTAVmVGAVPERFGEYRGLSTYFDmARGGKALEmTKFFNTNYHYLVPEIETEEFYLLENKPLEDYLFFKSKGIETAPWVIGPFTFLYLSKRNGEWIRRPNQmEKLLESLVSVYKEVFEKLVENGCKEILVNEPAFVCDLEKAHWDLILNVYRELSEFPLTVFTYYDSVSDYEACVSLPVKRLHFDFVSNEENLKNLEKHGFPEDKKLVAGVINGRQPWKVDLRKVASLVEKLGASAISNSCPLFHLPVTLELENNLPGGLKEKLAFAKEKLEELKmLKDFLEGKT----------FAVDLQAVERVRN-PEDSFRREKEYTERDRIQRERLNLPLFPTTTIGSFPQTPEVRKm--------ISKEEYEAFIKEQIKKAIELQEEIGLDVLVHGEFERTDmVEFFAEKLNGIATTQNGWVLSYGSRCYRPPIIYGTVTRPEPmTLKEITYAQSLTEKPVKGmLTGPVTImSWSYYREDIPEREIAYQIALAINEEVKDLEEAGIKIVQIDEPAFREKAPIKKSKWPEYFEWAINAFNLAANARPETQIHAHmCYSDFNEIIEYIHQLEFDVISIEASRSKGEIISAFENFKGWIKQIGVGVWDIHSPAVPSINEmREIVERVLRVLPKELIWINPDCGLKTRNWDEVIPSLRNmVALAKEmRE 730
                                     9        19        29        39   | |  49        59        69   |    79        89   |    99  |    109       119       129       139       149       159       169|      179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339    |  349   |     -    |  369      |379       389       399       409       419 |       -|      439       449       459       469       479       489       499       509|      519       529       539       549       559       569       579       589       599       609       619       629       639       649       659       669       679  |    689       699       709       719 |     729 
                                                                 38-MSE| |                          73-MSE              93-MSE  102-MSE                                                             170-MSE                                                                                                                                                                       344-MSE  353        364         376 |                                        421-MSE  430                                   468-MSE                                   510-MSE            529-MSE 537-MSE                                                                           619-MSE                                                        682-MSE                                721-MSE  |  
                                                                      43-MSE                                                                                                                                                                                                                                                                                                                                        378                                                                                                                                                                                                                                                                                                                                                           728-MSE
                                                                        45-MSE

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

(no "SCOP Domain" information available for 1XDJ)

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: Alpha-Beta Barrel (2994)

Topology: TIM Barrel (2806)

Homologous Superfamily: [code=3.20.20.210, no name defined] (35)

Thermotoga maritima. Organism_taxid: 2336. (6)

1a	1xdjA02	A:364-482,A:498-733
1b	1xdjA01	A:1-363,A:483-497
1c	1xdjB01	B:0-353,B:483-497
1d	1xdjB02	B:364-482,B:498-730

Asymmetric Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: Methionine_synt (18)

Family: Meth_synt_1 (4)

Thermotoga maritima (2)

1a	Meth_synt_1-1xdjB01	B:2-305
1b	Meth_synt_1-1xdjB02	B:2-305

Family: Meth_synt_2 (5)

Thermotoga maritima (2)

2a	Meth_synt_2-1xdjB03	B:404-727
2b	Meth_synt_2-1xdjB04	B:404-727

Asymmetric Unit(hide GO term definitions)

Chain A,B (METE_THEMA | Q9X112)

molecular function
	GO:0003871	5-methyltetrahydropteroyltriglutamate-homocysteine S-methyltransferase activity	Catalysis of the reaction: 5-methyltetrahydropteroyltri-L-glutamate + L-homocysteine = L-methionine + tetrahydropteroyltri-L-glutamate.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0008705	methionine synthase activity	Catalysis of the reaction: (6S)-5-methyl-5,6,7,8-tetrahydrofolate + L-homocysteine = (6S)-5,6,7,8-tetrahydrofolate + L-methionine.
	GO:0008168	methyltransferase activity	Catalysis of the transfer of a methyl group to an acceptor molecule.
	GO:0016740	transferase activity	Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
	GO:0008270	zinc ion binding	Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
	GO:0008652	cellular amino acid biosynthetic process	The chemical reactions and pathways resulting in the formation of amino acids, organic acids containing one or more amino substituents.
	GO:0050667	homocysteine metabolic process	The chemical reactions and pathways involving homocysteine, the amino acid alpha-amino-gamma-mercaptobutanoic acid. Homocysteine is an important intermediate in the metabolic reactions of its S-methyl derivative, methionine.
	GO:0009086	methionine biosynthetic process	The chemical reactions and pathways resulting in the formation of methionine (2-amino-4-(methylthio)butanoic acid), a sulfur-containing, essential amino acid found in peptide linkage in proteins.
	GO:0032259	methylation	The process in which a methyl group is covalently attached to a molecule.
cellular component
	GO:0005829	cytosol	The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
	GO:0005576	extracellular region	The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

Asymmetric Unit
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	Cis Peptide Bonds
(no "Cis Peptide Bonds" information available for 1xdj)

Biological Units
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		Biological Unit 2	[ Jena3D ]

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	1xdj
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	2.1.1.14
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	METE_THEMA \| Q9X112	:	1t7l 1xpg 1xr2 3bq5 3bq6

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (5, 42)

Sites (8, 8)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (0, 0)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (0, 0)

CATH Domains (1, 4)

Pfam Domains (2, 4)

Gene Ontology (12, 12)

Visualization

Interactive Views

Still Images

Databases and Analysis Tools

Databases

Analysis Tools

Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File