Reviewed, UniProtKB/Swiss-Prot Q43087 (PYRB2_PEA)

Names and origin

Protein names

Recommended name:
    Aspartate carbamoyltransferase 2, chloroplastic
    EC=2.1.3.2
Alternative name(s):
    Aspartate transcarbamylase 2
      Short name=ATCase 2

Gene names

Name:

PYRB2

Organism

Pisum sativum (Garden pea)

Taxonomic identifier

3888 [NCBI]

Taxonomic lineage

Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliophyta › eudicotyledons › core eudicotyledons › rosids › eurosids I › Fabales › Fabaceae › Papilionoideae › Fabeae › Pisum

Protein attributes

Sequence length	385 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is further processed into a mature form.
Protein existence	Evidence at transcript level.

General annotation (Comments)

Catalytic activity	Carbamoyl phosphate + L-aspartate = phosphate + N-carbamoyl-L-aspartate.
Enzyme regulation	Allosterically regulated by UMP.
Pathway	Pyrimidine metabolism; UMP biosynthesis via de novo pathway; UMP from HCO(3)(-): step 2/6.
Subunit structure	Homotrimer Potential.
Subcellular location	Plastid › chloroplast.
Sequence similarities	Belongs to the ATCase/OTCase family.

Ontologies

Keywords
Biological process	Pyrimidine biosynthesis
Cellular component	Chloroplast Plastid
Domain	Transit peptide
Molecular function	Transferase
Technical term	Allosteric enzyme
Gene Ontology (GO)
Biological process	'de novo' pyrimidine base biosynthetic process Inferred from electronic annotation. Source: InterPro amino acid metabolic process Inferred from electronic annotation. Source: InterPro pyrimidine nucleotide biosynthetic process Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	chloroplast Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	amino acid binding Inferred from electronic annotation. Source: InterPro aspartate carbamoyltransferase activity Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Transit peptide	1 – 63	63	Chloroplast Potential
	Chain	64 – 385	322	Aspartate carbamoyltransferase 2, chloroplastic		PRO_0000020350

Sequences

	Sequence		Length	Mass (Da)
	Q43087-1 [UniParc]. Last modified November 1, 1996. Version 1. Checksum: 1EC989FF0845EEB9	FASTA	385	43,745
	10 20 30 40 50 60 MTASSSLFSC SMHMEVLTPK ISKWPKNFVS CHSKISYVET NYLKSTCYPI SRFFCINNLK 70 80 90 100 110 120 KTRQRDGIHC FSEGQKFQLD DVVEAQQFDR DILNAIFEVA RDMEKIERNS PESQILKGYL 130 140 150 160 170 180 MATLFYEPST RTRLSFESAM RRLGGEVLTT ENAREFSSAA KGETLEDTIR TVEGYSDLIV 190 200 210 220 230 240 LRHFESGAAR RAATIAGIPI VNAGDGPGQH PSQALLDVYT IEREIGKLDG IKVGLVGDLA 250 260 270 280 290 300 NGRTVRSLTY LLAKYKDVKI YFVSPEVVKM KDDIKDYLTS KGVDWEESSD LVEVASECDV 310 320 330 340 350 360 VYQTRIQKER FGERLDLYEK ARGKFIVNQN ILNAMQRHAV IMHPLPRLDE ITVDVDADPR 370 380 AAYFRQAKYG LYIRMALLKL LLVGW

References

[1]	"Molecular cloning and characterization of the pyrB1 and pyrB2 genes encoding aspartate transcarbamoylase in pea (Pisum sativum L.)." Williamson C.L., Slocum R.D. Plant Physiol. 105:377-384(1994) [PubMed: 8029359] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. Strain: cv. Wando. Tissue: Leaf.

Cross-references

Sequence databases
EMBLGenBankDDBJ	L15798 mRNA. Translation: AAA62444.1.
PIR	T10181.
3D structure databases
HSSP	HSSP built from PDB template 1GQ3 based on UniProtKB P00479.
ModBase	Search...
Family and domain databases
InterPro	IPR006130. Asp/Orn_carbamoyltranf. IPR006132. Asp/Orn_carbamoyltranf_P_bd. IPR006131. Asp_carbamoyltransf_Asp/Orn_bd. IPR002082. Aspartate_carbamoyltransf_euk. [Graphical view]
Pfam	PF00185. OTCace. 1 hit. PF02729. OTCace_N. 1 hit. [Graphical view]
PRINTS	PR00100. AOTCASE. PR00101. ATCASE.
TIGRFAMs	TIGR00670. asp_carb_tr. 1 hit.
PROSITE	PS00097. CARBAMOYLTRANSFERASE. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

PYRB2_PEA

Accession

Primary (citable) accession number: Q43087

Entry history

Integrated into UniProtKB/Swiss-Prot:	December 15, 1998
Last sequence update:	November 1, 1996
Last modified:	November 25, 2008
This is version 58 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

PPAP (Plant Proteome Annotation Project)