1RG9 - JenaLib

Asym./Biol. Unit - manually (Jmol Viewer)

Asym./Biol. Unit (Jmol Viewer)

Asym./Biol. Unit - sites (Jmol Viewer)

Title :   S-ADENOSYLMETHIONINE SYNTHETASE COMPLEXED WITH SAM AND PPNP

Authors :   J. Komoto, T. Yamada, Y. Takata, G. D. Markham, F. Takusagawa

Date :   11 Nov 03 (Deposition) - 02 Mar 04 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.50

Chains :   Asym./Biol. Unit : A,B,C,D

Keywords :   S-Adenosylmethionine Synthetase; Methionine Adenosyltransferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   J. Komoto, T. Yamada, Y. Takata, G. D. Markham, F. Takusagawa
Crystal Structure Of The S-Adenosylmethionine Synthetase Ternary Complex: A Novel Catalytic Mechanism Of S-Adenosylmethionine Synthesis From Atp And Met.
Biochemistry V. 43 1821 2004
PubMed-ID: 14967023 | Reference-DOI: 10.1021/BI035611T
(for further references see the PDB file header)

Molecule 1 - S-ADENOSYLMETHIONINE SYNTHETASE
	Chains	:	A, B, C, D
	EC Number	:	2.5.1.6
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Taxid	:	562
	Gene	:	METK, METX, B2942, C3528, Z4287, ECS3818, SF2933, S3137
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	562
	Synonym	:	METHIONINE ADENOSYLTRANSFERASE, ADOMET SYNTHETASE, MAT

		1	2	3	4
Asymmetric/Biological Unit	:	A	B	C	D

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (4, 20)

No.	Name	Count	Type	Full Name
1	K	4	Ligand/Ion	POTASSIUM ION
2	MG	8	Ligand/Ion	MAGNESIUM ION
3	PPK	4	Ligand/Ion	(DIPHOSPHONO)AMINOPHOSPHONIC ACID
4	SAM	4	Ligand/Ion	S-ADENOSYLMETHIONINE

Asymmetric Unit (20, 20)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	ASP A:238 , CYS A:239 , PPK A:384 , GLU B:42	BINDING SITE FOR RESIDUE K A 386
02	AC2	SOFTWARE	GLU A:8 , LYS A:165 , PPK A:384	BINDING SITE FOR RESIDUE MG A 387
03	AC3	SOFTWARE	ASP A:16 , PPK A:384	BINDING SITE FOR RESIDUE MG A 388
04	AC4	SOFTWARE	GLU A:42 , ASP B:238 , CYS B:239 , PPK B:484	BINDING SITE FOR RESIDUE K B 486
05	AC5	SOFTWARE	GLU B:8 , LYS B:165 , PPK B:484	BINDING SITE FOR RESIDUE MG B 487
06	AC6	SOFTWARE	ASP B:16 , PPK B:484	BINDING SITE FOR RESIDUE MG B 488
07	AC7	SOFTWARE	ASP C:238 , CYS C:239 , PPK C:584 , GLU D:42	BINDING SITE FOR RESIDUE K C 586
08	AC8	SOFTWARE	LYS C:165 , PPK C:584 , ASP D:118 , ASP D:271	BINDING SITE FOR RESIDUE MG D 587
09	AC9	SOFTWARE	ASP C:16 , PPK C:584	BINDING SITE FOR RESIDUE MG C 588
10	BC1	SOFTWARE	GLU C:42 , ASP D:238 , CYS D:239 , PPK D:684	BINDING SITE FOR RESIDUE K D 686
11	BC2	SOFTWARE	ASP C:271 , LYS D:165 , PPK D:684	BINDING SITE FOR RESIDUE MG C 687
12	BC3	SOFTWARE	ASP D:16 , PPK D:684	BINDING SITE FOR RESIDUE MG D 688
13	BC4	SOFTWARE	HIS A:14 , PRO A:15 , ASP A:163 , LYS A:165 , SER A:186 , ARG A:229 , PHE A:230 , ASP A:238 , PPK A:384 , HOH A:389 , HOH A:390 , HOH A:391 , HOH A:392 , ALA B:40 , GLU B:55 , GLN B:98 , ASP B:101 , ILE B:102 , GLY B:117 , ASP B:118 , LYS B:269 , ILE B:302	BINDING SITE FOR RESIDUE SAM A 385
14	BC5	SOFTWARE	ALA A:40 , GLU A:55 , GLN A:98 , ASP A:101 , ILE A:102 , GLY A:117 , ASP A:118 , LYS A:269 , ILE A:302 , HOH A:393 , HIS B:14 , PRO B:15 , ASP B:163 , LYS B:165 , SER B:186 , THR B:227 , ARG B:229 , PHE B:230 , ASP B:238 , PPK B:484 , HOH B:500	BINDING SITE FOR RESIDUE SAM B 485
15	BC6	SOFTWARE	HIS C:14 , PRO C:15 , ASP C:163 , LYS C:165 , THR C:227 , ARG C:229 , PHE C:230 , ASP C:238 , PPK C:584 , HOH C:700 , HOH C:702 , HOH C:711 , HOH C:716 , ALA D:40 , GLU D:55 , GLN D:98 , ASP D:101 , ILE D:102 , GLY D:117 , ASP D:118 , LYS D:269 , ILE D:302	BINDING SITE FOR RESIDUE SAM C 585
16	BC7	SOFTWARE	ALA C:40 , GLU C:55 , GLN C:98 , ASP C:101 , ILE C:102 , GLY C:117 , ASP C:118 , LYS C:269 , ILE C:302 , HOH C:900 , HOH C:902 , HIS D:14 , ASP D:163 , LYS D:165 , THR D:227 , ARG D:229 , PHE D:230 , ASP D:238 , PPK D:684 , HOH D:916	BINDING SITE FOR RESIDUE SAM C 685
17	BC8	SOFTWARE	HIS A:14 , ASP A:16 , LYS A:165 , ASP A:238 , ARG A:244 , LYS A:245 , SAM A:385 , K A:386 , MG A:387 , MG A:388 , ASP B:118 , GLY B:259 , GLY B:260 , ALA B:261 , LYS B:265 , ASP B:271	BINDING SITE FOR RESIDUE PPK A 384
18	BC9	SOFTWARE	ASP A:118 , GLY A:259 , GLY A:260 , ALA A:261 , LYS A:265 , ASP A:271 , HIS B:14 , ASP B:16 , LYS B:165 , ASP B:238 , ARG B:244 , LYS B:245 , SAM B:485 , K B:486 , MG B:487 , MG B:488	BINDING SITE FOR RESIDUE PPK B 484
19	CC1	SOFTWARE	HIS C:14 , ASP C:16 , LYS C:165 , ASP C:238 , ARG C:244 , LYS C:245 , SAM C:585 , K C:586 , MG C:588 , ASP D:118 , GLY D:259 , GLY D:260 , ALA D:261 , LYS D:265 , ASP D:271 , MG D:587	BINDING SITE FOR RESIDUE PPK C 584
20	CC2	SOFTWARE	ASP C:118 , GLY C:259 , GLY C:260 , ALA C:261 , LYS C:265 , ASP C:271 , SAM C:685 , MG C:687 , HIS D:14 , ASP D:16 , LYS D:165 , ARG D:244 , LYS D:245 , K D:686 , MG D:688 , HOH D:930	BINDING SITE FOR RESIDUE PPK D 684

(no "SS Bond" information available for 1RG9)

(no "Cis Peptide Bond" information available for 1RG9)

(no "SAP(SNP)/Variant" information available for 1RG9)

Asymmetric/Biological Unit (2, 8)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ADOMET_SYNTHASE_1	PS00376	S-adenosylmethionine synthase signature 1.	METK_ECOLI	116-126	4	A:115-125 B:115-125 C:115-125 D:115-125
2	ADOMET_SYNTHASE_2	PS00377	S-adenosylmethionine synthase signature 2.	METK_ECOLI	259-267	4	A:258-266 B:258-266 C:258-266 D:258-266

(no "Exon" information available for 1RG9)

Asymmetric/Biological 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
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:383
 aligned with METK_ECOLI | P0A817 from UniProtKB/Swiss-Prot  Length:384

    Alignment length:383
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381   
           METK_ECOLI     2 AKHLFTSESVSEGHPDKIADQISDAVLDAILEQDPKARVACETYVKTGMVLVGGEITTSAWVDIEEITRNTVREIGYVHSDMGFDANSCAVLSAIGKQSPDINQGVDRADPLEQGAGDQGLMFGYATNETDVLMPAPITYAHRLVQRQAEVRKNGTLPWLRPDAKSQVTFQYDDGKIVGIDAVVLSTQHSEEIDQKSLQEAVMEEIIKPILPAEWLTSATKFFINPTGRFVIGGPMGDCGLTGRKIIVDTYGGMARHGGGAFSGKDPSKVDRSAAYAARYVAKNIVAAGLADRCEIQVSYAIGVAEPTSIMVETFGTEKVPSEQLTLLVREFFDLRPYGLIQMLDLLHPIYKETAAYGHFGREHFPWEKTDKAQLLRDAAGLK 384
               SCOP domains d1rg9a1 A:1-102 S-adenosylmethionine synthetase                                                       d1rg9a2 A:103-231 S-adenosylmethionine synthetase                                                                                d1rg9a3 A:232-383 S-adenosylmethionine synthetase                                                                                                        SCOP domains
               CATH domains 1rg9A03  1rg9A02 A:10-101,A:233-269  [code=3.30.300.10, no name defined]                             ------1rg9A01 A:108-135,A:270-382 1rg9A03 A:1-9,A:136-232  [code=3.30.300.10, no name defined]                                     1rg9A02 A:10-101,A:233-269           1rg9A01 A:108-135,A:270-382  [code=3.30.300.10, no name defined]                                                 - CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeeee...hhhhhhhhhhhhhhhhhhhhh...eeeeeeeee..eeeeeeeee.....hhhhhhhhhhhhhh.eehhhhee....eeeeeee..hhhhhhhhh............eeeeeeee.......hhhhhhhhhhhhhhhhhhhh.....eeeeeeeeeeeeee..eeeeeeeeeeeeee....hhhhhhhhhhhhh.....hhhhh....eeee........hhhhhh.ee...........................hhhhhhhhhhhhhhhhhhhh....eeeeeeee........eeeee.......hhhhhhhhhhhhh..hhhhhhhhhh.....hhhhhh..............hhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------ADOMET_SYNT------------------------------------------------------------------------------------------------------------------------------------ADOMET_SY--------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1rg9 A   1 AKHLFTSESVSEGHPDKIADQISDAVLDAILEQDPKARVACETYVKTGMVLVGGEITTSAWVDIEEITRNTVREIGYVHSDMGFDANSCAVLSAIGKQSPDINQGVDRADPLEQGAGDQGLMFGYATNETDVLMPAPITYAHRLVQRQAEVRKNGTLPWLRPDAKSQVTFQYDDGKIVGIDAVVLSTQHSEEIDQKSLQEAVMEEIIKPILPAEWLTSATKFFINPTGRFVIGGPMGDCGLTGRKIIVDTYGGMARHGGGAFSGKDPSKVDRSAAYAARYVAKNIVAAGLADRCEIQVSYAIGVAEPTSIMVETFGTEKVPSEQLTLLVREFFDLRPYGLIQMLDLLHPIYKETAAYGHFGREHFPWEKTDKAQLLRDAAGLK 383
                                    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

Chain B from PDB  Type:PROTEIN  Length:383
 aligned with METK_ECOLI | P0A817 from UniProtKB/Swiss-Prot  Length:384

    Alignment length:383
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381   
           METK_ECOLI     2 AKHLFTSESVSEGHPDKIADQISDAVLDAILEQDPKARVACETYVKTGMVLVGGEITTSAWVDIEEITRNTVREIGYVHSDMGFDANSCAVLSAIGKQSPDINQGVDRADPLEQGAGDQGLMFGYATNETDVLMPAPITYAHRLVQRQAEVRKNGTLPWLRPDAKSQVTFQYDDGKIVGIDAVVLSTQHSEEIDQKSLQEAVMEEIIKPILPAEWLTSATKFFINPTGRFVIGGPMGDCGLTGRKIIVDTYGGMARHGGGAFSGKDPSKVDRSAAYAARYVAKNIVAAGLADRCEIQVSYAIGVAEPTSIMVETFGTEKVPSEQLTLLVREFFDLRPYGLIQMLDLLHPIYKETAAYGHFGREHFPWEKTDKAQLLRDAAGLK 384
               SCOP domains d1rg9b1 B:1-102 S-adenosylmethionine synthetase                                                       d1rg9b2 B:103-231 S-adenosylmethionine synthetase                                                                                d1rg9b3 B:232-383 S-adenosylmethionine synthetase                                                                                                        SCOP domains
               CATH domains 1rg9B03  1rg9B02 B:10-101,B:233-269  [code=3.30.300.10, no name defined]                             ------1rg9B01 B:108-135,B:270-382 1rg9B03 B:1-9,B:136-232  [code=3.30.300.10, no name defined]                                     1rg9B02 B:10-101,B:233-269           1rg9B01 B:108-135,B:270-382  [code=3.30.300.10, no name defined]                                                 - CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeeee...hhhhhhhhhhhhhhhhhhhhh...eeeeeeeee..eeeeeeeee.....hhhhhhhhhhhhhh.eehhhhee....eeeeeee..hhhhhhhhh............eeeeeeee.......hhhhhhhhhhhhhhhhhhhh.....eeeeeeeeeeeeee..eeeeeeeeeeeeee....hhhhhhhhhhhhh.....hhhhh....eeee........hhhhhh.ee...hhhhhh..................hhhhhhhhhhhhhhhhhhhh....eeeeeeee........eeeee.......hhhhhhhhhhhhh..hhhhhhhhhh.....hhhhh...............hhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------ADOMET_SYNT------------------------------------------------------------------------------------------------------------------------------------ADOMET_SY--------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1rg9 B   1 AKHLFTSESVSEGHPDKIADQISDAVLDAILEQDPKARVACETYVKTGMVLVGGEITTSAWVDIEEITRNTVREIGYVHSDMGFDANSCAVLSAIGKQSPDINQGVDRADPLEQGAGDQGLMFGYATNETDVLMPAPITYAHRLVQRQAEVRKNGTLPWLRPDAKSQVTFQYDDGKIVGIDAVVLSTQHSEEIDQKSLQEAVMEEIIKPILPAEWLTSATKFFINPTGRFVIGGPMGDCGLTGRKIIVDTYGGMARHGGGAFSGKDPSKVDRSAAYAARYVAKNIVAAGLADRCEIQVSYAIGVAEPTSIMVETFGTEKVPSEQLTLLVREFFDLRPYGLIQMLDLLHPIYKETAAYGHFGREHFPWEKTDKAQLLRDAAGLK 383
                                    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

Chain C from PDB  Type:PROTEIN  Length:383
 aligned with METK_ECOLI | P0A817 from UniProtKB/Swiss-Prot  Length:384

    Alignment length:383
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381   
           METK_ECOLI     2 AKHLFTSESVSEGHPDKIADQISDAVLDAILEQDPKARVACETYVKTGMVLVGGEITTSAWVDIEEITRNTVREIGYVHSDMGFDANSCAVLSAIGKQSPDINQGVDRADPLEQGAGDQGLMFGYATNETDVLMPAPITYAHRLVQRQAEVRKNGTLPWLRPDAKSQVTFQYDDGKIVGIDAVVLSTQHSEEIDQKSLQEAVMEEIIKPILPAEWLTSATKFFINPTGRFVIGGPMGDCGLTGRKIIVDTYGGMARHGGGAFSGKDPSKVDRSAAYAARYVAKNIVAAGLADRCEIQVSYAIGVAEPTSIMVETFGTEKVPSEQLTLLVREFFDLRPYGLIQMLDLLHPIYKETAAYGHFGREHFPWEKTDKAQLLRDAAGLK 384
               SCOP domains d1rg9c1 C:1-102 S-adenosylmethionine synthetase                                                       d1rg9c2 C:103-231 S-adenosylmethionine synthetase                                                                                d1rg9c3 C:232-383 S-adenosylmethionine synthetase                                                                                                        SCOP domains
               CATH domains 1rg9C03  1rg9C02 C:10-101,C:233-269  [code=3.30.300.10, no name defined]                             ------1rg9C01 C:108-135,C:270-382 1rg9C03 C:1-9,C:136-232  [code=3.30.300.10, no name defined]                                     1rg9C02 C:10-101,C:233-269           1rg9C01 C:108-135,C:270-382  [code=3.30.300.10, no name defined]                                                 - CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeeee...hhhhhhhhhhhhhhhhhhhhh...eeeeeeeee..eeeeeeeee.....hhhhhhhhhhhhhh.eehhhhee....eeeeeee..hhhhhhhhh............eeeeeeee.......hhhhhhhhhhhhhhhhhhhh.....eeeeeeeeeeeeee..eeeeeeeeeeeeee....hhhhhhhhhhhhh.....hhhhh....eeee........hhhhhh.ee...........................hhhhhhhhhhhhhhhhhhhh....eeeeeeee........eeeee.......hhhhhhhhhhhhh..hhhhhhhhhh.....hhhhhh..............hhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------ADOMET_SYNT------------------------------------------------------------------------------------------------------------------------------------ADOMET_SY--------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1rg9 C   1 AKHLFTSESVSEGHPDKIADQISDAVLDAILEQDPKARVACETYVKTGMVLVGGEITTSAWVDIEEITRNTVREIGYVHSDMGFDANSCAVLSAIGKQSPDINQGVDRADPLEQGAGDQGLMFGYATNETDVLMPAPITYAHRLVQRQAEVRKNGTLPWLRPDAKSQVTFQYDDGKIVGIDAVVLSTQHSEEIDQKSLQEAVMEEIIKPILPAEWLTSATKFFINPTGRFVIGGPMGDCGLTGRKIIVDTYGGMARHGGGAFSGKDPSKVDRSAAYAARYVAKNIVAAGLADRCEIQVSYAIGVAEPTSIMVETFGTEKVPSEQLTLLVREFFDLRPYGLIQMLDLLHPIYKETAAYGHFGREHFPWEKTDKAQLLRDAAGLK 383
                                    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

Chain D from PDB  Type:PROTEIN  Length:383
 aligned with METK_ECOLI | P0A817 from UniProtKB/Swiss-Prot  Length:384

    Alignment length:383
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381   
           METK_ECOLI     2 AKHLFTSESVSEGHPDKIADQISDAVLDAILEQDPKARVACETYVKTGMVLVGGEITTSAWVDIEEITRNTVREIGYVHSDMGFDANSCAVLSAIGKQSPDINQGVDRADPLEQGAGDQGLMFGYATNETDVLMPAPITYAHRLVQRQAEVRKNGTLPWLRPDAKSQVTFQYDDGKIVGIDAVVLSTQHSEEIDQKSLQEAVMEEIIKPILPAEWLTSATKFFINPTGRFVIGGPMGDCGLTGRKIIVDTYGGMARHGGGAFSGKDPSKVDRSAAYAARYVAKNIVAAGLADRCEIQVSYAIGVAEPTSIMVETFGTEKVPSEQLTLLVREFFDLRPYGLIQMLDLLHPIYKETAAYGHFGREHFPWEKTDKAQLLRDAAGLK 384
               SCOP domains d1rg9d1 D:1-102 S-adenosylmethionine synthetase                                                       d1rg9d2 D:103-231 S-adenosylmethionine synthetase                                                                                d1rg9d3 D:232-383 S-adenosylmethionine synthetase                                                                                                        SCOP domains
               CATH domains 1rg9D03  1rg9D02 D:10-101,D:233-269  [code=3.30.300.10, no name defined]                             ------1rg9D01 D:108-135,D:270-382 1rg9D03 D:1-9,D:136-232  [code=3.30.300.10, no name defined]                                     1rg9D02 D:10-101,D:233-269           1rg9D01 D:108-135,D:270-382  [code=3.30.300.10, no name defined]                                                 - CATH domains
           Pfam domains (1) S-AdoMet_synt_N-1rg9D09 D:1-100                                                                     -----------S-AdoMet_synt_M-1rg9D05 D:112-230                                                                                      -S-AdoMet_synt_C-1rg9D01 D:232-369                                                                                                         -------------- Pfam domains (1)
           Pfam domains (2) S-AdoMet_synt_N-1rg9D10 D:1-100                                                                     -----------S-AdoMet_synt_M-1rg9D06 D:112-230                                                                                      -S-AdoMet_synt_C-1rg9D02 D:232-369                                                                                                         -------------- Pfam domains (2)
           Pfam domains (3) S-AdoMet_synt_N-1rg9D11 D:1-100                                                                     -----------S-AdoMet_synt_M-1rg9D07 D:112-230                                                                                      -S-AdoMet_synt_C-1rg9D03 D:232-369                                                                                                         -------------- Pfam domains (3)
           Pfam domains (4) S-AdoMet_synt_N-1rg9D12 D:1-100                                                                     -----------S-AdoMet_synt_M-1rg9D08 D:112-230                                                                                      -S-AdoMet_synt_C-1rg9D04 D:232-369                                                                                                         -------------- Pfam domains (4)
         Sec.struct. author ..eeeeeeee...hhhhhhhhhhhhhhhhhhhhh...eeeeeeeee..eeeeeeeee.....hhhhhhhhhhhhhh.eehhhhee....eeeeeee..hhhhhhhhh............eeeeeeee.......hhhhhhhhhhhhhhhhhhhh.....eeeeeeeeeeeeee..eeeeeeeeeeeeee....hhhhhhhhhhhhh..............eeee........hhhhhh.ee...hhhhhh..................hhhhhhhhhhhhhhhhhhhh....eeeeeeee........eeeee.......hhhhhhhhhhhhh..hhhhhhhhhh.....hhhhh...............hhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------ADOMET_SYNT------------------------------------------------------------------------------------------------------------------------------------ADOMET_SY--------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1rg9 D   1 AKHLFTSESVSEGHPDKIADQISDAVLDAILEQDPKARVACETYVKTGMVLVGGEITTSAWVDIEEITRNTVREIGYVHSDMGFDANSCAVLSAIGKQSPDINQGVDRADPLEQGAGDQGLMFGYATNETDVLMPAPITYAHRLVQRQAEVRKNGTLPWLRPDAKSQVTFQYDDGKIVGIDAVVLSTQHSEEIDQKSLQEAVMEEIIKPILPAEWLTSATKFFINPTGRFVIGGPMGDCGLTGRKIIVDTYGGMARHGGGAFSGKDPSKVDRSAAYAARYVAKNIVAAGLADRCEIQVSYAIGVAEPTSIMVETFGTEKVPSEQLTLLVREFFDLRPYGLIQMLDLLHPIYKETAAYGHFGREHFPWEKTDKAQLLRDAAGLK 383
                                    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

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 '\|'

Asymmetric/Biological Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: Alpha and beta proteins (a+b) (23004)

Fold: S-adenosylmethionine synthetase (23)

Superfamily: S-adenosylmethionine synthetase (23)

Family: S-adenosylmethionine synthetase (15)

Protein domain: S-adenosylmethionine synthetase (15)

Escherichia coli [TaxId: 562] (9)

1a	d1rg9a1	A:1-102
1b	d1rg9a2	A:103-231
1c	d1rg9a3	A:232-383
1d	d1rg9b1	B:1-102
1e	d1rg9b2	B:103-231
1f	d1rg9b3	B:232-383
1g	d1rg9c1	C:1-102
1h	d1rg9c2	C:103-231
1i	d1rg9c3	C:232-383
1j	d1rg9d1	D:1-102
1k	d1rg9d2	D:103-231
1l	d1rg9d3	D:232-383

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 2-Layer Sandwich (8480)

Topology: GMP Synthetase; Chain A, domain 3 (192)

Homologous Superfamily: [code=3.30.300.10, no name defined] (22)

Escherichia coli. Organism_taxid: 562. (2)

1a	1rg9A03	A:1-9,A:136-232
1b	1rg9A02	A:10-101,A:233-269
1c	1rg9B02	B:10-101,B:233-269
1d	1rg9C02	C:10-101,C:233-269
1e	1rg9D02	D:10-101,D:233-269
1f	1rg9A01	A:108-135,A:270-382
1g	1rg9B01	B:108-135,B:270-382
1h	1rg9C01	C:108-135,C:270-382
1i	1rg9D01	D:108-135,D:270-382
1j	1rg9B03	B:1-9,B:136-232
1k	1rg9C03	C:1-9,C:136-232
1l	1rg9D03	D:1-9,D:136-232

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,B,C,D (METK_ECOLI | P0A817)

molecular function
	GO:0005524	ATP binding	Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
	GO:0042802	identical protein binding	Interacting selectively and non-covalently with an identical protein or proteins.
	GO:0000287	magnesium ion binding	Interacting selectively and non-covalently with magnesium (Mg) ions.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0004478	methionine adenosyltransferase activity	Catalysis of the reaction: ATP + L-methionine + H2O = phosphate + diphosphate + S-adenosyl-L-methionine.
	GO:0000166	nucleotide binding	Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
	GO:0030955	potassium ion binding	Interacting selectively and non-covalently with potassium (K+) ions.
	GO:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
	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.
biological process
	GO:0006556	S-adenosylmethionine biosynthetic process	The chemical reactions and pathways resulting in the formation of S-adenosylmethionine, S-(5'-adenosyl)-L-methionine, an important intermediate in one-carbon metabolism.
	GO:0033353	S-adenosylmethionine cycle	A cyclic series of interconversions involving S-adenosylmethionine, S-adenosyl-L-homocysteine, L-cysteine, and L-methionine. Couples utilization of the methyl group of SAM with recycling of the homocysteinyl group and regeneration of methionine.
	GO:0006730	one-carbon metabolic process	The chemical reactions and pathways involving the transfer of one-carbon units in various oxidation states.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0005829	cytosol	The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

Asymmetric/Biological Unit
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	Cis Peptide Bonds
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	1rg9
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	2.5.1.6
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	METK_ECOLI \| P0A817
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UniProtKB/Swiss-Prot
	METK_ECOLI \| P0A817	:	1fug 1mxa 1mxb 1mxc 1p7l 1xra 1xrb 1xrc

1p7l	1P7L CONTAINS THE COORDINATES OF S-ADENOSYLMETHIONINE COMPLEXED WITH (AMPPNP AND MET) IN AB DIMER AND (SAM AND PPNP) IN CD DIMER. THIS STRUCTURE WAS REFINED WITH THE SAME HKLFO DATA DEPOSITED IN THIS FILE.

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (4, 20)

Sites (20, 20)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

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SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (2, 8)

Exons (0, 0)

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SCOP Domains (1, 12)

CATH Domains (1, 12)

Pfam Domains (3, 12)

Gene Ontology (14, 14)

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