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Protein

5-aminolevulinate synthase, nonspecific, mitochondrial

Gene

ALAS1

Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Catalytic activityi

Succinyl-CoA + glycine = 5-aminolevulinate + CoA + CO2.

Cofactori

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei217 – 2171SubstrateBy similarity
Binding sitei334 – 3341SubstrateBy similarity
Binding sitei353 – 3531SubstrateBy similarity
Binding sitei386 – 3861Pyridoxal phosphateBy similarity
Binding sitei414 – 4141Pyridoxal phosphateBy similarity
Binding sitei442 – 4421Pyridoxal phosphateBy similarity
Active sitei445 – 4451By similarity
Binding sitei474 – 4741Pyridoxal phosphateBy similarity
Binding sitei475 – 4751Pyridoxal phosphateBy similarity
Binding sitei562 – 5621SubstrateBy similarity

GO - Molecular functioni

  1. 5-aminolevulinate synthase activity Source: UniProtKB-EC
  2. pyridoxal phosphate binding Source: InterPro

GO - Biological processi

  1. cellular lipid metabolic process Source: Reactome
  2. heme biosynthetic process Source: Reactome
  3. mitochondrion organization Source: Reactome
  4. organelle organization Source: Reactome
  5. porphyrin-containing compound metabolic process Source: Reactome
  6. protoporphyrinogen IX biosynthetic process Source: UniProtKB-UniPathway
  7. small molecule metabolic process Source: Reactome
Complete GO annotation...

Keywords - Molecular functioni

Acyltransferase, Transferase

Keywords - Biological processi

Heme biosynthesis

Keywords - Ligandi

Pyridoxal phosphate

Enzyme and pathway databases

BioCyciMetaCyc:HS00424-MONOMER.
BRENDAi2.3.1.37. 2681.
ReactomeiREACT_116145. PPARA activates gene expression.
REACT_264212. Transcriptional activation of mitochondrial biogenesis.
REACT_9465. Heme biosynthesis.
UniPathwayiUPA00251; UER00375.

Names & Taxonomyi

Protein namesi
Recommended name:
5-aminolevulinate synthase, nonspecific, mitochondrial (EC:2.3.1.37)
Short name:
ALAS-H
Alternative name(s):
5-aminolevulinic acid synthase 1
Delta-ALA synthase 1
Delta-aminolevulinate synthase 1
Gene namesi
Name:ALAS1
Synonyms:ALAS3, ALASH
ORF Names:OK/SW-cl.121
OrganismiHomo sapiens (Human)
Taxonomic identifieri9606 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo
ProteomesiUP000005640 Componenti: Chromosome 3

Organism-specific databases

HGNCiHGNC:396. ALAS1.

Subcellular locationi

GO - Cellular componenti

  1. cytoplasm Source: HPA
  2. mitochondrial matrix Source: Reactome
  3. mitochondrion Source: HPA
  4. nucleoplasm Source: HPA
Complete GO annotation...

Keywords - Cellular componenti

Mitochondrion

Pathology & Biotechi

Organism-specific databases

PharmGKBiPA24688.

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transit peptidei1 – 5656MitochondrionAdd
BLAST
Chaini57 – 6405845-aminolevulinate synthase, nonspecific, mitochondrialPRO_0000001230Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei445 – 4451N6-(pyridoxal phosphate)lysineCurated

Proteomic databases

MaxQBiP13196.
PaxDbiP13196.
PRIDEiP13196.

PTM databases

PhosphoSiteiP13196.

Expressioni

Gene expression databases

BgeeiP13196.
CleanExiHS_ALAS1.
ExpressionAtlasiP13196. baseline and differential.
GenevestigatoriP13196.

Organism-specific databases

HPAiCAB017498.
HPA035860.

Interactioni

Subunit structurei

Homodimer.

Protein-protein interaction databases

BioGridi106713. 47 interactions.
IntActiP13196. 12 interactions.
MINTiMINT-4774107.
STRINGi9606.ENSP00000309259.

Structurei

3D structure databases

ProteinModelPortaliP13196.
SMRiP13196. Positions 199-578.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transit peptide

Phylogenomic databases

eggNOGiCOG0156.
HOGENOMiHOG000221020.
HOVERGENiHBG005954.
InParanoidiP13196.
KOiK00643.
OMAiPQMMSYF.
OrthoDBiEOG7TQV0F.
PhylomeDBiP13196.
TreeFamiTF300724.

Family and domain databases

Gene3Di3.40.640.10. 1 hit.
3.90.1150.10. 1 hit.
InterProiIPR010961. 4pyrrol_synth_NH2levulA_synth.
IPR015118. 5aminolev_synth_preseq.
IPR001917. Aminotrans_II_pyridoxalP_BS.
IPR004839. Aminotransferase_I/II.
IPR015424. PyrdxlP-dep_Trfase.
IPR015421. PyrdxlP-dep_Trfase_major_sub1.
IPR015422. PyrdxlP-dep_Trfase_major_sub2.
[Graphical view]
PfamiPF00155. Aminotran_1_2. 1 hit.
PF09029. Preseq_ALAS. 2 hits.
[Graphical view]
SUPFAMiSSF53383. SSF53383. 1 hit.
TIGRFAMsiTIGR01821. 5aminolev_synth. 1 hit.
PROSITEiPS00599. AA_TRANSFER_CLASS_2. 1 hit.
[Graphical view]

Sequences (2)i

Sequence statusi: Complete.

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

This entry describes 2 isoformsi produced by alternative splicing. AlignAdd to basket

Isoform 1 (identifier: P13196-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide

        10         20         30         40         50
MESVVRRCPF LSRVPQAFLQ KAGKSLLFYA QNCPKMMEVG AKPAPRALST
60 70 80 90 100
AAVHYQQIKE TPPASEKDKT AKAKVQQTPD GSQQSPDGTQ LPSGHPLPAT
110 120 130 140 150
SQGTASKCPF LAAQMNQRGS SVFCKASLEL QEDVQEMNAV RKEVAETSAG
160 170 180 190 200
PSVVSVKTDG GDPSGLLKNF QDIMQKQRPE RVSHLLQDNL PKSVSTFQYD
210 220 230 240 250
RFFEKKIDEK KNDHTYRVFK TVNRRAHIFP MADDYSDSLI TKKQVSVWCS
260 270 280 290 300
NDYLGMSRHP RVCGAVMDTL KQHGAGAGGT RNISGTSKFH VDLERELADL
310 320 330 340 350
HGKDAALLFS SCFVANDSTL FTLAKMMPGC EIYSDSGNHA SMIQGIRNSR
360 370 380 390 400
VPKYIFRHND VSHLRELLQR SDPSVPKIVA FETVHSMDGA VCPLEELCDV
410 420 430 440 450
AHEFGAITFV DEVHAVGLYG ARGGGIGDRD GVMPKMDIIS GTLGKAFGCV
460 470 480 490 500
GGYIASTSSL IDTVRSYAAG FIFTTSLPPM LLAGALESVR ILKSAEGRVL
510 520 530 540 550
RRQHQRNVKL MRQMLMDAGL PVVHCPSHII PVRVADAAKN TEVCDELMSR
560 570 580 590 600
HNIYVQAINY PTVPRGEELL RIAPTPHHTP QMMNYFLENL LVTWKQVGLE
610 620 630 640
LKPHSSAECN FCRRPLHFEV MSEREKSYFS GLSKLVSAQA
Length:640
Mass (Da):70,581
Last modified:August 1, 1991 - v2
Checksum:i5E952DCCFFD6873F
GO
Isoform 2 (identifier: P13196-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     95-118: HPLPATSQGTASKCPFLAAQMNQR → FRLDTPCLPQARALQANALSWQHR
     119-640: Missing.

Note: No experimental confirmation available.

Show »
Length:118
Mass (Da):12,961
Checksum:iE4B74A55EDB54F70
GO

Sequence cautioni

The sequence CAA68506.1 differs from that shown. Reason: Frameshift at several positions. Curated

Experimental Info

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti2 – 21E → D in CAA68506 (PubMed:3671094).Curated
Sequence conflicti6 – 61R → G in CAA68506 (PubMed:3671094).Curated
Sequence conflicti43 – 431P → Q in CAA68506 (PubMed:3671094).Curated
Sequence conflicti47 – 471A → G in CAA68506 (PubMed:3671094).Curated
Sequence conflicti56 – 572QQ → HK in CAA68506 (PubMed:3671094).Curated
Sequence conflicti69 – 691K → Q in CAA68506 (PubMed:3671094).Curated

Alternative sequence

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Alternative sequencei95 – 11824HPLPA…QMNQR → FRLDTPCLPQARALQANALS WQHR in isoform 2. 1 PublicationVSP_025925Add
BLAST
Alternative sequencei119 – 640522Missing in isoform 2. 1 PublicationVSP_025924Add
BLAST

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X56351 mRNA. Translation: CAA39794.1.
Y00451 mRNA. Translation: CAA68506.1. Frameshift.
AB063322 mRNA. Translation: BAB93514.1.
BC011798 mRNA. Translation: AAH11798.1.
CCDSiCCDS2847.1. [P13196-1]
PIRiS13682. SYHUAL.
RefSeqiNP_000679.1. NM_000688.5. [P13196-1]
NP_954635.1. NM_199166.2. [P13196-1]
UniGeneiHs.476308.

Genome annotation databases

EnsembliENST00000310271; ENSP00000309259; ENSG00000023330. [P13196-1]
ENST00000394965; ENSP00000378416; ENSG00000023330. [P13196-1]
ENST00000469224; ENSP00000417719; ENSG00000023330. [P13196-1]
ENST00000484952; ENSP00000418779; ENSG00000023330. [P13196-1]
GeneIDi211.
KEGGihsa:211.
UCSCiuc003dcx.2. human. [P13196-2]
uc003dcy.2. human. [P13196-1]

Polymorphism databases

DMDMi122824.

Keywords - Coding sequence diversityi

Alternative splicing

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X56351 mRNA. Translation: CAA39794.1.
Y00451 mRNA. Translation: CAA68506.1. Frameshift.
AB063322 mRNA. Translation: BAB93514.1.
BC011798 mRNA. Translation: AAH11798.1.
CCDSiCCDS2847.1. [P13196-1]
PIRiS13682. SYHUAL.
RefSeqiNP_000679.1. NM_000688.5. [P13196-1]
NP_954635.1. NM_199166.2. [P13196-1]
UniGeneiHs.476308.

3D structure databases

ProteinModelPortaliP13196.
SMRiP13196. Positions 199-578.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi106713. 47 interactions.
IntActiP13196. 12 interactions.
MINTiMINT-4774107.
STRINGi9606.ENSP00000309259.

Chemistry

DrugBankiDB00145. Glycine.

PTM databases

PhosphoSiteiP13196.

Polymorphism databases

DMDMi122824.

Proteomic databases

MaxQBiP13196.
PaxDbiP13196.
PRIDEiP13196.

Protocols and materials databases

DNASUi211.
Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENST00000310271; ENSP00000309259; ENSG00000023330. [P13196-1]
ENST00000394965; ENSP00000378416; ENSG00000023330. [P13196-1]
ENST00000469224; ENSP00000417719; ENSG00000023330. [P13196-1]
ENST00000484952; ENSP00000418779; ENSG00000023330. [P13196-1]
GeneIDi211.
KEGGihsa:211.
UCSCiuc003dcx.2. human. [P13196-2]
uc003dcy.2. human. [P13196-1]

Organism-specific databases

CTDi211.
GeneCardsiGC03P052207.
HGNCiHGNC:396. ALAS1.
HPAiCAB017498.
HPA035860.
MIMi125290. gene.
neXtProtiNX_P13196.
PharmGKBiPA24688.
GenAtlasiSearch...

Phylogenomic databases

eggNOGiCOG0156.
HOGENOMiHOG000221020.
HOVERGENiHBG005954.
InParanoidiP13196.
KOiK00643.
OMAiPQMMSYF.
OrthoDBiEOG7TQV0F.
PhylomeDBiP13196.
TreeFamiTF300724.

Enzyme and pathway databases

UniPathwayiUPA00251; UER00375.
BioCyciMetaCyc:HS00424-MONOMER.
BRENDAi2.3.1.37. 2681.
ReactomeiREACT_116145. PPARA activates gene expression.
REACT_264212. Transcriptional activation of mitochondrial biogenesis.
REACT_9465. Heme biosynthesis.

Miscellaneous databases

ChiTaRSiALAS1. human.
GeneWikiiALAS1.
GenomeRNAii211.
NextBioi846.
PROiP13196.
SOURCEiSearch...

Gene expression databases

BgeeiP13196.
CleanExiHS_ALAS1.
ExpressionAtlasiP13196. baseline and differential.
GenevestigatoriP13196.

Family and domain databases

Gene3Di3.40.640.10. 1 hit.
3.90.1150.10. 1 hit.
InterProiIPR010961. 4pyrrol_synth_NH2levulA_synth.
IPR015118. 5aminolev_synth_preseq.
IPR001917. Aminotrans_II_pyridoxalP_BS.
IPR004839. Aminotransferase_I/II.
IPR015424. PyrdxlP-dep_Trfase.
IPR015421. PyrdxlP-dep_Trfase_major_sub1.
IPR015422. PyrdxlP-dep_Trfase_major_sub2.
[Graphical view]
PfamiPF00155. Aminotran_1_2. 1 hit.
PF09029. Preseq_ALAS. 2 hits.
[Graphical view]
SUPFAMiSSF53383. SSF53383. 1 hit.
TIGRFAMsiTIGR01821. 5aminolev_synth. 1 hit.
PROSITEiPS00599. AA_TRANSFER_CLASS_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

« Hide 'large scale' publications
  1. "Two different genes encode delta-aminolevulinate synthase in humans: nucleotide sequences of cDNAs for the housekeeping and erythroid genes."
    Bishop D.F.
    Nucleic Acids Res. 18:7187-7188(1989) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1).
    Tissue: Liver.
  2. Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2).
    Tissue: Liver.
  3. "Identification of immuno-peptidmics that are recognized by tumor-reactive CTL generated from TIL of colon cancer patients."
    Shichijo S., Itoh K.
    Submitted (MAY-2001) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1).
    Tissue: Colon adenocarcinoma.
  4. "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)."
    The MGC Project Team
    Genome Res. 14:2121-2127(2003) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1).
    Tissue: Muscle.

Entry informationi

Entry nameiHEM1_HUMAN
AccessioniPrimary (citable) accession number: P13196
Entry historyi
Integrated into UniProtKB/Swiss-Prot: January 1, 1990
Last sequence update: August 1, 1991
Last modified: April 1, 2015
This is version 159 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

Miscellaneousi

Miscellaneous

There are two delta-ALA synthases in vertebrates: an erythroid- specific form and one (housekeeping) which is expressed in all tissues.

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Human chromosome 3
    Human chromosome 3: entries, gene names and cross-references to MIM
  2. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
  3. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  4. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.