ID   GSA2_ALKHC              Reviewed;         429 AA.
AC   Q9K8G3;
DT   01-JUN-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   25-MAY-2022, entry version 131.
DE   RecName: Full=Glutamate-1-semialdehyde 2,1-aminomutase 2 {ECO:0000255|HAMAP-Rule:MF_00375};
DE            Short=GSA 2 {ECO:0000255|HAMAP-Rule:MF_00375};
DE            EC=5.4.3.8 {ECO:0000255|HAMAP-Rule:MF_00375};
DE   AltName: Full=Glutamate-1-semialdehyde aminotransferase 2 {ECO:0000255|HAMAP-Rule:MF_00375};
DE            Short=GSA-AT 2 {ECO:0000255|HAMAP-Rule:MF_00375};
GN   Name=hemL2 {ECO:0000255|HAMAP-Rule:MF_00375}; Synonyms=hemL;
GN   OrderedLocusNames=BH3043;
OS   Alkalihalobacillus halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344
OS   / JCM 9153 / C-125) (Bacillus halodurans).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Alkalihalobacillus.
OX   NCBI_TaxID=272558;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125;
RX   PubMed=11058132; DOI=10.1093/nar/28.21.4317;
RA   Takami H., Nakasone K., Takaki Y., Maeno G., Sasaki R., Masui N., Fuji F.,
RA   Hirama C., Nakamura Y., Ogasawara N., Kuhara S., Horikoshi K.;
RT   "Complete genome sequence of the alkaliphilic bacterium Bacillus halodurans
RT   and genomic sequence comparison with Bacillus subtilis.";
RL   Nucleic Acids Res. 28:4317-4331(2000).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(S)-4-amino-5-oxopentanoate = 5-aminolevulinate;
CC         Xref=Rhea:RHEA:14265, ChEBI:CHEBI:57501, ChEBI:CHEBI:356416;
CC         EC=5.4.3.8; Evidence={ECO:0000255|HAMAP-Rule:MF_00375};
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00375};
CC   -!- PATHWAY: Porphyrin-containing compound metabolism; protoporphyrin-IX
CC       biosynthesis; 5-aminolevulinate from L-glutamyl-tRNA(Glu): step 2/2.
CC       {ECO:0000255|HAMAP-Rule:MF_00375}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00375}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00375}.
CC   -!- SIMILARITY: Belongs to the class-III pyridoxal-phosphate-dependent
CC       aminotransferase family. HemL subfamily. {ECO:0000255|HAMAP-
CC       Rule:MF_00375}.
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DR   EMBL; BA000004; BAB06762.1; -; Genomic_DNA.
DR   PIR; C84030; C84030.
DR   RefSeq; WP_010899187.1; NC_002570.2.
DR   AlphaFoldDB; Q9K8G3; -.
DR   SMR; Q9K8G3; -.
DR   STRING; 272558.10175665; -.
DR   EnsemblBacteria; BAB06762; BAB06762; BAB06762.
DR   KEGG; bha:BH3043; -.
DR   eggNOG; COG0001; Bacteria.
DR   HOGENOM; CLU_016922_1_5_9; -.
DR   OMA; WGPLIFG; -.
DR   OrthoDB; 493793at2; -.
DR   UniPathway; UPA00251; UER00317.
DR   Proteomes; UP000001258; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0042286; F:glutamate-1-semialdehyde 2,1-aminomutase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0030170; F:pyridoxal phosphate binding; IEA:InterPro.
DR   GO; GO:0008483; F:transaminase activity; IEA:InterPro.
DR   GO; GO:0006782; P:protoporphyrinogen IX biosynthetic process; IEA:UniProtKB-UniPathway.
DR   CDD; cd00610; OAT_like; 1.
DR   Gene3D; 3.40.640.10; -; 1.
DR   Gene3D; 3.90.1150.10; -; 1.
DR   HAMAP; MF_00375; HemL_aminotrans_3; 1.
DR   InterPro; IPR004639; 4pyrrol_synth_GluAld_NH2Trfase.
DR   InterPro; IPR005814; Aminotrans_3.
DR   InterPro; IPR015424; PyrdxlP-dep_Trfase.
DR   InterPro; IPR015421; PyrdxlP-dep_Trfase_major.
DR   InterPro; IPR015422; PyrdxlP-dep_Trfase_small.
DR   Pfam; PF00202; Aminotran_3; 1.
DR   SUPFAM; SSF53383; SSF53383; 1.
DR   TIGRFAMs; TIGR00713; hemL; 1.
DR   PROSITE; PS00600; AA_TRANSFER_CLASS_3; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Isomerase; Porphyrin biosynthesis; Pyridoxal phosphate;
KW   Reference proteome.
FT   CHAIN           1..429
FT                   /note="Glutamate-1-semialdehyde 2,1-aminomutase 2"
FT                   /id="PRO_0000120392"
FT   MOD_RES         268
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00375"
SQ   SEQUENCE   429 AA;  46614 MW;  58289A482B1BDC74 CRC64;
     MKTFEKSSAA FNRAKPLMPG GVNSPVRAFK SVNMDPVFME RGKGANIYDI DGNEYIDYVL
     SWGPLILGHA DDQVVEKLKE TTEKGTSFGA PSELETKLAE LVIERVPSIE VVRMVNSGTE
     ATMSALRLAR GYTGRNKILK FEGCYHGHGD SLLIKAGSGV ATLGLPDSPG VPETVAQNTL
     TVPYNDLESV RYAFEQFGDD LAGVIVEPVA GNMGVVPPEP GFLEELRRLT EENGTLLIFD
     EVMTGFRVGY HCAQGAFGIT PDLTCLGKVI GGGLPVGAYG GKREIMEQIA PSGPIYQAGT
     LSGNPLAMTA GYETLVQLTE ANYEYFDRLG DRLAEGLSAV AKEYDIPHYT SRAGSMVGFF
     FTDKKVKNFA DASSSDLEFF AKYFKEMLHL GVSLPPSQFE GMFLSTKHTE ADIDFTVDAA
     RQAFKRLKK