ID   GSA1_ALKHC              Reviewed;         437 AA.
AC   Q9KEB0;
DT   01-JUN-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   03-AUG-2022, entry version 129.
DE   RecName: Full=Glutamate-1-semialdehyde 2,1-aminomutase 1 {ECO:0000255|HAMAP-Rule:MF_00375};
DE            Short=GSA 1 {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 1 {ECO:0000255|HAMAP-Rule:MF_00375};
DE            Short=GSA-AT 1 {ECO:0000255|HAMAP-Rule:MF_00375};
GN   Name=hemL1 {ECO:0000255|HAMAP-Rule:MF_00375}; Synonyms=gsaB;
GN   OrderedLocusNames=BH0943;
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; BAB04662.1; -; Genomic_DNA.
DR   PIR; G83767; G83767.
DR   RefSeq; WP_010897115.1; NC_002570.2.
DR   AlphaFoldDB; Q9KEB0; -.
DR   SMR; Q9KEB0; -.
DR   STRING; 272558.10173558; -.
DR   EnsemblBacteria; BAB04662; BAB04662; BAB04662.
DR   KEGG; bha:BH0943; -.
DR   eggNOG; COG0001; Bacteria.
DR   HOGENOM; CLU_016922_1_5_9; -.
DR   OMA; NFGMVEP; -.
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..437
FT                   /note="Glutamate-1-semialdehyde 2,1-aminomutase 1"
FT                   /id="PRO_0000120394"
FT   MOD_RES         268
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00375"
SQ   SEQUENCE   437 AA;  47080 MW;  F2035E49347BE0A7 CRC64;
     MNRSRSESLF QKAQSLIVGG VNSPSRSFKA VGGGAPVFME KAKGAYFWDV DGNQYIDYLA
     AYGPIITGHA HPHITNAIQR AAENGVLYGT PTKLENQFAS MLQQAIPSLE KVRFVNSGTE
     AVMTTIRVAR AYTGRDKIIK FAGCYHGHSD LVLVAAGSGP STLGTPDSAG VTKNIAEEVI
     TVPFNQLDSL KEALDHWGEE VAAVLVEPIV GNFGIVEPHE GFLEGVNELA HNAGALVIYD
     EVITAFRFMY EGAQNYVGVE PDMTALGKII GGGLPIGAYG GRIDIMEKVA PLGPAYQAGT
     MAGNPASMSA GIACLEVLQE EGLYDELDRK GAILEKGIKA HAEAHGITIS INRLKGALTV
     YFTDETVTCY EQAERSDGEK FSLFFKEMLN QGINLAPSKY EAWFLTIAHT DEDIEKTLQA
     VDHAFSVMAA KGYHLKR