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Protein

5-aminolevulinate synthase, erythroid-specific, mitochondrial

Gene

ALAS2

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 + CO2.1 Publication

Cofactori

Pathwayi: protoporphyrin-IX biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes 5-aminolevulinate from glycine.
Proteins known to be involved in this subpathway in this organism are:
  1. 5-aminolevulinate synthase, nonspecific, mitochondrial (ALAS1), 5-aminolevulinate synthase (ALAS1), 5-aminolevulinate synthase, erythroid-specific, mitochondrial (ALAS2)
This subpathway is part of the pathway protoporphyrin-IX biosynthesis, which is itself part of Porphyrin-containing compound metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes 5-aminolevulinate from glycine, the pathway protoporphyrin-IX biosynthesis and in Porphyrin-containing compound metabolism.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei163 – 1631SubstrateBy similarity
Binding sitei280 – 2801SubstrateBy similarity
Binding sitei299 – 2991SubstrateBy similarity
Binding sitei332 – 3321Pyridoxal phosphateBy similarity
Binding sitei360 – 3601Pyridoxal phosphateBy similarity
Binding sitei388 – 3881Pyridoxal phosphateBy similarity
Active sitei391 – 3911By similarity
Binding sitei420 – 4201Pyridoxal phosphate; shared with dimeric partnerBy similarity
Binding sitei421 – 4211Pyridoxal phosphate; shared with dimeric partnerBy similarity
Binding sitei508 – 5081SubstrateBy similarity

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Acyltransferase, Transferase

Keywords - Biological processi

Heme biosynthesis

Keywords - Ligandi

Pyridoxal phosphate

Enzyme and pathway databases

BioCyciMetaCyc:HS08311-MONOMER.
BRENDAi2.3.1.37. 2681.
ReactomeiR-HSA-189451. Heme biosynthesis.
UniPathwayiUPA00251; UER00375.

Names & Taxonomyi

Protein namesi
Recommended name:
5-aminolevulinate synthase, erythroid-specific, mitochondrial (EC:2.3.1.37)
Short name:
ALAS-E
Alternative name(s):
5-aminolevulinic acid synthase 2
Delta-ALA synthase 2
Delta-aminolevulinate synthase 2
Gene namesi
Name:ALAS2
Synonyms:ALASE, ASB
OrganismiHomo sapiens (Human)
Taxonomic identifieri9606 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo
Proteomesi
  • UP000005640 Componenti: Chromosome X

Organism-specific databases

HGNCiHGNC:397. ALAS2.

Subcellular locationi

GO - Cellular componenti

  • mitochondrial inner membrane Source: UniProtKB
  • mitochondrial matrix Source: Reactome
  • mitochondrion Source: UniProtKB
Complete GO annotation...

Keywords - Cellular componenti

Mitochondrion

Pathology & Biotechi

Involvement in diseasei

Anemia, sideroblastic, X-linked (XLSA)10 Publications
The disease is caused by mutations affecting the gene represented in this entry.
Disease descriptionA form of sideroblastic anemia that shows a variable hematologic response to pharmacologic doses of pyridoxine. Sideroblastic anemia is characterized by anemia of varying severity, hypochromic peripheral erythrocytes, systemic iron overload secondary to chronic ineffective erythropoiesis, and the presence of bone marrow ringed sideroblasts. Sideroblasts are characterized by iron-loaded mitochondria clustered around the nucleus.
See also OMIM:300751
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Natural varianti156 – 1561K → E in XLSA; significantly reduced activity. 1 Publication
VAR_066232
Natural varianti159 – 1591D → Y in XLSA. 1 Publication
Corresponds to variant rs137852308 [ dbSNP | Ensembl ].
VAR_018604
Natural varianti165 – 1651F → L in XLSA. 1 Publication
Corresponds to variant rs137852301 [ dbSNP | Ensembl ].
VAR_072328
Natural varianti170 – 1701R → C in XLSA. 1 Publication
VAR_072329
Natural varianti170 – 1701R → H in XLSA; significantly increased thermosensitivity. 1 Publication
VAR_066233
Natural varianti199 – 1991Y → H in XLSA. 1 Publication
Corresponds to variant rs137852310 [ dbSNP | Ensembl ].
VAR_012334
Natural varianti204 – 2041R → Q in XLSA; 15% to 35% activity of wild-type. 1 Publication
VAR_012335
Natural varianti218 – 2181R → H in XLSA; significantly increased thermosensitivity. 1 Publication
Corresponds to variant rs185504937 [ dbSNP | Ensembl ].
VAR_066234
Natural varianti242 – 2421E → K in XLSA; significantly reduced activity. 1 Publication
VAR_066235
Natural varianti263 – 2631D → N in XLSA; significantly reduced activity. 1 Publication
VAR_066236
Natural varianti301 – 3011V → A in XLSA. 1 Publication
VAR_072330
Natural varianti339 – 3391P → L in XLSA; significantly reduced activity. 1 Publication
VAR_066237
Natural varianti375 – 3751R → C in XLSA; significantly reduced activity. 1 Publication
VAR_066238
Natural varianti388 – 3881T → S in XLSA. 1 Publication
Corresponds to variant rs137852300 [ dbSNP | Ensembl ].
VAR_000562
Natural varianti411 – 4111R → C in XLSA; 12% to 25% activity of wild-type. 3 Publications
Corresponds to variant rs137852305 [ dbSNP | Ensembl ].
VAR_000563
Natural varianti411 – 4111R → H in XLSA; significantly reduced activity. 1 Publication
VAR_066239
Natural varianti448 – 4481R → Q in XLSA. 1 Publication
VAR_012336
Natural varianti452 – 4521R → C in XLSA. 2 Publications
Corresponds to variant rs137852311 [ dbSNP | Ensembl ].
VAR_012337
Natural varianti452 – 4521R → G in XLSA; does not affect activity. 2 Publications
VAR_066240
Natural varianti452 – 4521R → H in XLSA. 1 Publication
VAR_066241
Natural varianti476 – 4761I → N in XLSA. 1 Publication
Corresponds to variant rs137852299 [ dbSNP | Ensembl ].
VAR_000564
Natural varianti517 – 5171R → G in XLSA. 1 Publication
VAR_072331
Natural varianti520 – 5201P → L in XLSA. 2 Publications
Corresponds to variant rs201062903 [ dbSNP | Ensembl ].
VAR_066242
Natural varianti560 – 5601R → H in XLSA. 1 Publication
VAR_018605
Natural varianti572 – 5721R → H in XLSA; does not affect activity. 1 Publication
VAR_066243
Erythropoietic protoporphyria, X-linked dominant (XLDPT)1 Publication
The disease is caused by mutations affecting the gene represented in this entry. Gain of function mutations in ALS2 are responsible for XLDPT, but they can also be a possible aggravating factor in congenital erythropoietic porphyria and other erythropoietic disorders caused by mutations in other genes (PubMed:21309041).1 Publication
Disease descriptionA form of porphyria. Porphyrias are inherited defects in the biosynthesis of heme, resulting in the accumulation and increased excretion of porphyrins or porphyrin precursors. They are classified as erythropoietic or hepatic, depending on whether the enzyme deficiency occurs in red blood cells or in the liver. XLDPT is characterized biochemically by a high proportion of zinc-protoporphyrin in erythrocytes, in which a mismatch between protoporphyrin production and the heme requirement of differentiating erythroid cells leads to overproduction of protoporphyrin in amounts sufficient to cause photosensitivity and liver disease.
See also OMIM:300752

Keywords - Diseasei

Disease mutation

Organism-specific databases

MalaCardsiALAS2.
MIMi300751. phenotype.
300752. phenotype.
Orphaneti79278. Erythropoietic protoporphyria.
75563. X-linked sideroblastic anemia.
PharmGKBiPA24689.

Chemistry

DrugBankiDB00145. Glycine.

Polymorphism and mutation databases

BioMutaiALAS2.
DMDMi20141346.

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transit peptidei1 – 4949Mitochondrion1 PublicationAdd
BLAST
Chaini50 – 5875385-aminolevulinate synthase, erythroid-specific, mitochondrialPRO_0000001223Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei391 – 3911N6-(pyridoxal phosphate)lysineBy similarity

Proteomic databases

MaxQBiP22557.
PaxDbiP22557.
PeptideAtlasiP22557.
PRIDEiP22557.

PTM databases

iPTMnetiP22557.
PhosphoSiteiP22557.

Expressioni

Tissue specificityi

Erythroid specific.

Gene expression databases

BgeeiENSG00000158578.
CleanExiHS_ALAS2.
ExpressionAtlasiP22557. baseline and differential.
GenevisibleiP22557. HS.

Organism-specific databases

HPAiHPA001638.

Interactioni

Subunit structurei

Homodimer. Interacts with SUCLA2.1 Publication

Binary interactionsi

WithEntry#Exp.IntActNotes
BANPQ8N9N53EBI-2115743,EBI-744695

Protein-protein interaction databases

BioGridi106714. 3 interactions.
IntActiP22557. 2 interactions.
STRINGi9606.ENSP00000332369.

Structurei

3D structure databases

ProteinModelPortaliP22557.
SMRiP22557. Positions 1-49, 151-540.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transit peptide

Phylogenomic databases

eggNOGiKOG1360. Eukaryota.
COG0156. LUCA.
GeneTreeiENSGT00530000063111.
HOGENOMiHOG000221020.
HOVERGENiHBG005954.
InParanoidiP22557.
KOiK00643.
OMAiNFPFAEH.
OrthoDBiEOG091G043U.
PhylomeDBiP22557.
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. 1 hit.
[Graphical view]
SUPFAMiSSF53383. SSF53383. 1 hit.
TIGRFAMsiTIGR01821. 5aminolev_synth. 1 hit.
PROSITEiPS00599. AA_TRANSFER_CLASS_2. 1 hit.
[Graphical view]

Sequences (4)i

Sequence statusi: Complete.

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

This entry describes 4 isoformsi produced by alternative splicing. AlignAdd to basket

Isoform 1 (identifier: P22557-1) [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
MVTAAMLLQC CPVLARGPTS LLGKVVKTHQ FLFGIGRCPI LATQGPNCSQ
60 70 80 90 100
IHLKATKAGG DSPSWAKGHC PFMLSELQDG KSKIVQKAAP EVQEDVKAFK
110 120 130 140 150
TDLPSSLVSV SLRKPFSGPQ EQEQISGKVT HLIQNNMPGN YVFSYDQFFR
160 170 180 190 200
DKIMEKKQDH TYRVFKTVNR WADAYPFAQH FSEASVASKD VSVWCSNDYL
210 220 230 240 250
GMSRHPQVLQ ATQETLQRHG AGAGGTRNIS GTSKFHVELE QELAELHQKD
260 270 280 290 300
SALLFSSCFV ANDSTLFTLA KILPGCEIYS DAGNHASMIQ GIRNSGAAKF
310 320 330 340 350
VFRHNDPDHL KKLLEKSNPK IPKIVAFETV HSMDGAICPL EELCDVSHQY
360 370 380 390 400
GALTFVDEVH AVGLYGSRGA GIGERDGIMH KIDIISGTLG KAFGCVGGYI
410 420 430 440 450
ASTRDLVDMV RSYAAGFIFT TSLPPMVLSG ALESVRLLKG EEGQALRRAH
460 470 480 490 500
QRNVKHMRQL LMDRGLPVIP CPSHIIPIRV GNAALNSKLC DLLLSKHGIY
510 520 530 540 550
VQAINYPTVP RGEELLRLAP SPHHSPQMME DFVEKLLLAW TAVGLPLQDV
560 570 580
SVAACNFCRR PVHFELMSEW ERSYFGNMGP QYVTTYA
Length:587
Mass (Da):64,633
Last modified:January 23, 2002 - v2
Checksum:iFD821BE245C440B5
GO
Isoform 2 (identifier: P22557-2) [UniParc]FASTAAdd to basket
Also known as: Delta4

The sequence of this isoform differs from the canonical sequence as follows:
     102-138: Missing.

Note: Constitutes 35-45% of erythrocytes ALAS2 mRNAs. Catalytic activity is 70% of isoform 1 activity.
Show »
Length:550
Mass (Da):60,589
Checksum:iBB28A593D343264F
GO
Isoform 3 (identifier: P22557-3) [UniParc]FASTAAdd to basket
Also known as: F143M

The sequence of this isoform differs from the canonical sequence as follows:
     1-142: Missing.
     143-143: F → M

Note: Catalytic activity is 80% of isoform 1 activity.
Show »
Length:445
Mass (Da):49,395
Checksum:i3304747E4DE0CC2E
GO
Isoform 4 (identifier: P22557-4) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     1-1: M → MRGGEVALGWNKKKRLFCEDFRFKM
     102-138: Missing.

Show »
Length:574
Mass (Da):63,487
Checksum:i7F5E13D5F36738CD
GO

Sequence cautioni

The sequence CAA39795 differs from that shown. Reason: Erroneous initiation. Translation N-terminally extended.Curated

Experimental Info

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti182 – 1821S → F in CAA39795 (PubMed:2263504).Curated
Sequence conflicti221 – 2211A → V in AAH30230 (PubMed:15489334).Curated

Natural variant

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Natural varianti156 – 1561K → E in XLSA; significantly reduced activity. 1 Publication
VAR_066232
Natural varianti159 – 1591D → Y in XLSA. 1 Publication
Corresponds to variant rs137852308 [ dbSNP | Ensembl ].
VAR_018604
Natural varianti165 – 1651F → L in XLSA. 1 Publication
Corresponds to variant rs137852301 [ dbSNP | Ensembl ].
VAR_072328
Natural varianti170 – 1701R → C in XLSA. 1 Publication
VAR_072329
Natural varianti170 – 1701R → H in XLSA; significantly increased thermosensitivity. 1 Publication
VAR_066233
Natural varianti199 – 1991Y → H in XLSA. 1 Publication
Corresponds to variant rs137852310 [ dbSNP | Ensembl ].
VAR_012334
Natural varianti204 – 2041R → Q in XLSA; 15% to 35% activity of wild-type. 1 Publication
VAR_012335
Natural varianti218 – 2181R → H in XLSA; significantly increased thermosensitivity. 1 Publication
Corresponds to variant rs185504937 [ dbSNP | Ensembl ].
VAR_066234
Natural varianti242 – 2421E → K in XLSA; significantly reduced activity. 1 Publication
VAR_066235
Natural varianti263 – 2631D → N in XLSA; significantly reduced activity. 1 Publication
VAR_066236
Natural varianti301 – 3011V → A in XLSA. 1 Publication
VAR_072330
Natural varianti339 – 3391P → L in XLSA; significantly reduced activity. 1 Publication
VAR_066237
Natural varianti375 – 3751R → C in XLSA; significantly reduced activity. 1 Publication
VAR_066238
Natural varianti388 – 3881T → S in XLSA. 1 Publication
Corresponds to variant rs137852300 [ dbSNP | Ensembl ].
VAR_000562
Natural varianti411 – 4111R → C in XLSA; 12% to 25% activity of wild-type. 3 Publications
Corresponds to variant rs137852305 [ dbSNP | Ensembl ].
VAR_000563
Natural varianti411 – 4111R → H in XLSA; significantly reduced activity. 1 Publication
VAR_066239
Natural varianti448 – 4481R → Q in XLSA. 1 Publication
VAR_012336
Natural varianti452 – 4521R → C in XLSA. 2 Publications
Corresponds to variant rs137852311 [ dbSNP | Ensembl ].
VAR_012337
Natural varianti452 – 4521R → G in XLSA; does not affect activity. 2 Publications
VAR_066240
Natural varianti452 – 4521R → H in XLSA. 1 Publication
VAR_066241
Natural varianti476 – 4761I → N in XLSA. 1 Publication
Corresponds to variant rs137852299 [ dbSNP | Ensembl ].
VAR_000564
Natural varianti517 – 5171R → G in XLSA. 1 Publication
VAR_072331
Natural varianti520 – 5201P → L in XLSA. 2 Publications
Corresponds to variant rs201062903 [ dbSNP | Ensembl ].
VAR_066242
Natural varianti560 – 5601R → H in XLSA. 1 Publication
VAR_018605
Natural varianti572 – 5721R → H in XLSA; does not affect activity. 1 Publication
VAR_066243
Natural varianti586 – 5861Y → F Rare variant found in a congenital erythropoietic porphyria patient that also carries UROS mutations R-73 and Q-248; increased enzyme activity. 1 Publication
Corresponds to variant rs139596860 [ dbSNP | Ensembl ].
VAR_066244

Alternative sequence

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Alternative sequencei1 – 142142Missing in isoform 3. CuratedVSP_042851Add
BLAST
Alternative sequencei1 – 11M → MRGGEVALGWNKKKRLFCED FRFKM in isoform 4. 1 PublicationVSP_047330
Alternative sequencei102 – 13837Missing in isoform 2 and isoform 4. 2 PublicationsVSP_042852Add
BLAST
Alternative sequencei143 – 1431F → M in isoform 3. CuratedVSP_042853

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X56352 mRNA. Translation: CAA39795.1. Different initiation.
X60364 mRNA. Translation: CAA42916.1.
AF068624 Genomic DNA. Translation: AAC39838.1.
AK290565 mRNA. Translation: BAF83254.1.
AK291589 mRNA. Translation: BAF84278.1.
AK313118 mRNA. Translation: BAG35939.1.
Z83821 Genomic DNA. No translation available.
AL020991 Genomic DNA. Translation: CAA15886.1.
AL020991 Genomic DNA. Translation: CAX15017.1.
CH471154 Genomic DNA. Translation: EAW93211.1.
CH471154 Genomic DNA. Translation: EAW93213.1.
BC030230 mRNA. Translation: AAH30230.2.
CCDSiCCDS14366.1. [P22557-1]
CCDS35303.1. [P22557-2]
CCDS43960.1. [P22557-4]
PIRiS16347. SYHUAE.
RefSeqiNP_000023.2. NM_000032.4. [P22557-1]
NP_001033056.1. NM_001037967.3. [P22557-2]
NP_001033057.1. NM_001037968.3. [P22557-4]
UniGeneiHs.522666.
Hs.555936.

Genome annotation databases

EnsembliENST00000330807; ENSP00000332369; ENSG00000158578. [P22557-1]
ENST00000335854; ENSP00000337131; ENSG00000158578. [P22557-2]
ENST00000396198; ENSP00000379501; ENSG00000158578. [P22557-4]
GeneIDi212.
KEGGihsa:212.
UCSCiuc004dua.4. human. [P22557-1]

Keywords - Coding sequence diversityi

Alternative splicing

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X56352 mRNA. Translation: CAA39795.1. Different initiation.
X60364 mRNA. Translation: CAA42916.1.
AF068624 Genomic DNA. Translation: AAC39838.1.
AK290565 mRNA. Translation: BAF83254.1.
AK291589 mRNA. Translation: BAF84278.1.
AK313118 mRNA. Translation: BAG35939.1.
Z83821 Genomic DNA. No translation available.
AL020991 Genomic DNA. Translation: CAA15886.1.
AL020991 Genomic DNA. Translation: CAX15017.1.
CH471154 Genomic DNA. Translation: EAW93211.1.
CH471154 Genomic DNA. Translation: EAW93213.1.
BC030230 mRNA. Translation: AAH30230.2.
CCDSiCCDS14366.1. [P22557-1]
CCDS35303.1. [P22557-2]
CCDS43960.1. [P22557-4]
PIRiS16347. SYHUAE.
RefSeqiNP_000023.2. NM_000032.4. [P22557-1]
NP_001033056.1. NM_001037967.3. [P22557-2]
NP_001033057.1. NM_001037968.3. [P22557-4]
UniGeneiHs.522666.
Hs.555936.

3D structure databases

ProteinModelPortaliP22557.
SMRiP22557. Positions 1-49, 151-540.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi106714. 3 interactions.
IntActiP22557. 2 interactions.
STRINGi9606.ENSP00000332369.

Chemistry

DrugBankiDB00145. Glycine.

PTM databases

iPTMnetiP22557.
PhosphoSiteiP22557.

Polymorphism and mutation databases

BioMutaiALAS2.
DMDMi20141346.

Proteomic databases

MaxQBiP22557.
PaxDbiP22557.
PeptideAtlasiP22557.
PRIDEiP22557.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENST00000330807; ENSP00000332369; ENSG00000158578. [P22557-1]
ENST00000335854; ENSP00000337131; ENSG00000158578. [P22557-2]
ENST00000396198; ENSP00000379501; ENSG00000158578. [P22557-4]
GeneIDi212.
KEGGihsa:212.
UCSCiuc004dua.4. human. [P22557-1]

Organism-specific databases

CTDi212.
GeneCardsiALAS2.
GeneReviewsiALAS2.
HGNCiHGNC:397. ALAS2.
HPAiHPA001638.
MalaCardsiALAS2.
MIMi300751. phenotype.
300752. phenotype.
301300. gene.
neXtProtiNX_P22557.
Orphaneti79278. Erythropoietic protoporphyria.
75563. X-linked sideroblastic anemia.
PharmGKBiPA24689.
GenAtlasiSearch...

Phylogenomic databases

eggNOGiKOG1360. Eukaryota.
COG0156. LUCA.
GeneTreeiENSGT00530000063111.
HOGENOMiHOG000221020.
HOVERGENiHBG005954.
InParanoidiP22557.
KOiK00643.
OMAiNFPFAEH.
OrthoDBiEOG091G043U.
PhylomeDBiP22557.
TreeFamiTF300724.

Enzyme and pathway databases

UniPathwayiUPA00251; UER00375.
BioCyciMetaCyc:HS08311-MONOMER.
BRENDAi2.3.1.37. 2681.
ReactomeiR-HSA-189451. Heme biosynthesis.

Miscellaneous databases

ChiTaRSiALAS2. human.
GeneWikiiALAS2.
GenomeRNAii212.
PROiP22557.
SOURCEiSearch...

Gene expression databases

BgeeiENSG00000158578.
CleanExiHS_ALAS2.
ExpressionAtlasiP22557. baseline and differential.
GenevisibleiP22557. HS.

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. 1 hit.
[Graphical view]
SUPFAMiSSF53383. SSF53383. 1 hit.
TIGRFAMsiTIGR01821. 5aminolev_synth. 1 hit.
PROSITEiPS00599. AA_TRANSFER_CLASS_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiHEM0_HUMAN
AccessioniPrimary (citable) accession number: P22557
Secondary accession number(s): A8K3F0
, A8K6C4, Q13735, Q5JZF5, Q8N6H3
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 1, 1991
Last sequence update: January 23, 2002
Last modified: September 7, 2016
This is version 178 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 X
    Human chromosome X: entries, gene names and cross-references to MIM
  2. Human entries with polymorphisms or disease mutations
    List of human entries with polymorphisms or disease mutations
  3. Human polymorphisms and disease mutations
    Index of human polymorphisms and disease mutations
  4. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
  5. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  6. SIMILARITY comments
    Index of protein domains and families

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 one 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.