hem2 (SPAC1805.06c)

Gene Standard Namehem2 Characterisation Statusbiological_role_inferred
Systematic IDSPAC1805.06c Feature Typeprotein coding
Synonyms Name Description
Productporphobilinogen synthase Hem2 (predicted) Product Size329aa, 36.12 kDa
Genomic Location Chromosome I, 2785086-2783547 (1540nt); CDS:2784930-2783941 (990nt)

Ensembl Gene Location
GO Molecular Function
Term IDTerm NameEvidenceWith/FromReferenceCount
GO:0032791lead ion bindingISSUniProtKB:P13716GO_REF:00000241
GO:0004655porphobilinogen synthase activityISSUniProtKB:P13716GO_REF:00000241
GO:0008270zinc ion bindingISSUniProtKB:P13716GO_REF:0000024248
GO Biological Process
Term IDTerm NameEvidenceWith/FromReferenceCount
GO:0006783heme biosynthetic processISSUniProtKB:P13716GO_REF:000002413
GO:0006782protoporphyrinogen IX biosynthetic processIEA UniPathway:UPA00251GO_REF:00000417
GO Cellular Component
Term IDTerm NameEvidenceWith/FromReferenceCount
Fission Yeast Phenotype Ontology

Population Phenotype

Term IDTerm NameEvidenceAlleleExpressionConditionReferenceCount
FYPO:0002060viable vegetative cell populationMicroscopyhem2ΔNullPECO:0000005, PECO:0000137PMID:236978063755

Cell Phenotype

Term IDTerm NameEvidenceAlleleExpressionConditionReferenceCount
FYPO:0002177viable vegetative cell with normal cell morphologyMicroscopyhem2ΔNullPECO:0000005, PECO:0000137PMID:236978063078
penetrance FYPO_EXT:0000001
Ensembl transcript structure with UTRs, exons and introns


Exon Start End


Region Start End Reference
Protein Features

Graphical View

Ensembl protein image with mapped locations of structural domains

Protein Families and Domains

Feature ID Database InterPro Description Start End Count
PF00490 Pfam IPR001731 Porphobilinogen synthase 10 327 1
SM01004 SMART IPR001731 Porphobilinogen synthase 4 327 1
PS00169 Prosite Patterns IPR001731 Porphobilinogen synthase 245 257 1
PTHR11458:SF0 HMMPANTHER 1 329 1
PTHR11458 HMMPANTHER IPR001731 Porphobilinogen synthase 1 329 1
G3DSA: Gene3D IPR013785 5 328 35
SSF51569 SuperFamily 9 328 9
PIRSF001415 PIRSF IPR001731 Porphobilinogen synthase 1 329 1
Low complexity (SEG) seg 283 291
PR00144 PRINTS IPR001731 Porphobilinogen synthase 193 212 1
PR00144 PRINTS IPR001731 Porphobilinogen synthase 154 173 1
PR00144 PRINTS IPR001731 Porphobilinogen synthase 271 286 1
PR00144 PRINTS IPR001731 Porphobilinogen synthase 123 137 1
PR00144 PRINTS IPR001731 Porphobilinogen synthase 245 261 1
PR00144 PRINTS IPR001731 Porphobilinogen synthase 301 320 1

View domain organization at Pfam

Protein Properties

Ave. residue weight 109.79 Da
Charge -1.50
Isoelectric point 6.17
Molecular weight 36.12 kDa
Number of residues 329
Gene Expression

Quantitative Gene Expression

Protein Level

Molecules/Cell (average)DuringConditionScaleEvidenceReference
12654.8during GO:0072690PECO:0000005,
population_wideexperimental evidencePMID:23101633
3561.12during cell quiescence following G1 arrest due to nitrogen limitationPECO:0000005,
population_wideexperimental evidencePMID:23101633

RNA Level

Molecules/Cell (average)DuringConditionScaleEvidenceReference
0.45during cell quiescence following G1 arrest due to nitrogen limitationPECO:0000005,
population_wideexperimental evidencePMID:23101633
3.2during GO:0072690PECO:0000005,
population_wideexperimental evidencePMID:23101633
Disease Association
Species Distribution
predominantly single copy (one to one)3080
conserved in fungi4564
conserved in eukaryotes4482
conserved in bacteria1001
conserved in metazoa3419
conserved in vertebrates3394

Manually curated orthologous groups


Orthologs in Compara

Genetic Interactions

Source: BioGRID

Gene Product Evidence Reference
med7mediator complex subunit Med7 Positive GeneticPMID:22681890
SPCC18.13tRNA (guanine-N7-)-methyltransferase subunit Trm82 (predicted) Positive GeneticPMID:22681890
ssp2serine/threonine protein kinase Ssp2 Positive GeneticPMID:22681890
ypa1protein phosphatase type 2A regulator, PTPA family Ypa1 Positive GeneticPMID:22681890
mkh1MEK kinase (MEKK) Mkh1 Positive GeneticPMID:22681890
ngg1SAGA complex subunit Ngg1 Positive GeneticPMID:22681890
SPAC4C5.01haloacid dehalogenase-like hydrolase Positive GeneticPMID:22681890
External References
Database Identifier Description
NBRP SPAC1805.06c Fission yeast strain database, National BioResource Project (Japan)
YOGY SPAC1805.06c Retrieval of eukaryotic orthologs (Bähler Lab)
BioGrid SPAC1805.06c BioGRID Interaction Datasets
Expression Viewer SPAC1805.06c Cell Cycle Expression Profile (Bähler Lab)
Expression Viewer SPAC1805.06c Meiosis/Sporulation Expression Profies (Bähler Lab)
Expression Viewer SPAC1805.06c Pheromone response/mating expression profiles (Bähler Lab)
Expression Viewer SPAC1805.06c Environmental stress expression profiles (Bähler Lab)
Pomb(A) SPAC1805.06c Polyadenylation Viewer (Gullerova lab)
pombeTV SPAC1805.06c Transcriptome Viewer (Bähler Lab)
Cyclebase SPAC1805.06c Cell Cycle Data
GEO SPAC1805.06c GEO profiles
PInt SPAC1805.06c Protein-Protein Interaction Predictor (Bähler Lab)
IntEnz4.2.1.24Integrated relational Enzyme database
Rhea4.2.1.24Annotated reactions database
WikiGene2542373porphobilinogen synthase Hem2 (predicted)
EntrezGene2542373porphobilinogen synthase Hem2 (predicted)
SPD / RIKEN14/14D03Orfeome Localization Data
UniProtKB/SwissProtP78974Delta-aminolevulinic acid dehydratase
ModBaseP78974Database of comparative protein structure models
StringP78974Network display of known and predicted interactions and functional associations
RefSeq PeptideNP_593917porphobilinogen synthase Hem2 (predicted)
RefSeq mRNANM_001019346972h- porphobilinogen synthase Hem2 (predicted) (hem2), mRNA
European Nucleotide ArchiveAAB41236ENA Protein Mapping
European Nucleotide ArchiveCAB55847ENA Protein Mapping
UniParcUPI000012C45AUniProt Archive

Literature for hem2

Search: Europe PMC or PubMed

Release Version: PomBase:21_41 - 24 Feb 2014