P44503 (THRC_HAEIN) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Threonine synthase
Short name=TS
EC=4.2.3.1

Gene names

Name:	thrC
Ordered Locus Names:	HI_0087

Organism

Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd)

Taxonomic identifier

71421 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Pasteurellales › Pasteurellaceae › Haemophilus

Protein attributes

Sequence length	425 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Catalyzes the gamma-elimination of phosphate from L-phosphohomoserine and the beta-addition of water to produce L-threonine By similarity.
Catalytic activity	O-phospho-L-homoserine + H2O = L-threonine + phosphate.
Cofactor	Pyridoxal phosphate By similarity.
Pathway	Amino-acid biosynthesis; L-threonine biosynthesis; L-threonine from L-aspartate: step 5/5.
Sequence similarities	Belongs to the threonine synthase family.

Ontologies

Keywords
Biological process	Amino-acid biosynthesis Threonine biosynthesis
Ligand	Pyridoxal phosphate
Molecular function	Lyase
Technical term	Complete proteome Reference proteome
Gene Ontology (GO)
Biological process	threonine biosynthetic process Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	pyridoxal phosphate binding Inferred from electronic annotation. Source: InterPro threonine synthase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 425	425	Threonine synthase		PRO_0000185632
Amino acid modifications
	Modified residue	105	1	N6-(pyridoxal phosphate)lysine By similarity

Sequences

	Sequence		Length	Mass (Da)
	P44503 [UniParc]. Last modified November 1, 1995. Version 1. Checksum: 2CC222DD201F09E0	FASTA	425	46,682
	10 20 30 40 50 60 MNLYNIKHPE EQVTFSQAVR QGLGRDQGLF FPEVIPQLNN INELLELPLV ERSQKILGAL 70 80 90 100 110 120 IDGELPQATL DAMVKNAFTF PAPLEKVEEN IYALELFHGP TLAFKDFGGR FMAQALAAVR 130 140 150 160 170 180 GDGKITILTA TSGDTGAAVA HAFYGLENIN VVILYPKGKI SPLQEKLFCT LGGNIRTVAI 190 200 210 220 230 240 NADFDACQAL VKQAFDDVEL RQAIGLNSAN SINISRLLAQ VCYYFEAVAQ LPKEKRDNVV 250 260 270 280 290 300 VSVPSGNFGN LTAGLIAKTL GLPIKRFVAS TNANDTVPRY LKSGNWDPKT TVATLSNAMD 310 320 330 340 350 360 VSRPNNWPRV EELFKRNGWD LTDLGSGMLS DSETEDTLKA MQSKGYLCEP HGAIAYQVLK 370 380 390 400 410 420 DQLKASETGI FLCTAHPAKF KESVERILGI QLPLPETLDK HNQLPLLSDE MDNDFAQLRA YLLKS

References

[1]

"Whole-genome random sequencing and assembly of Haemophilus influenzae Rd." Fleischmann R.D., Adams M.D., White O., Clayton R.A., Kirkness E.F., Kerlavage A.R., Bult C.J., Tomb J.-F., Dougherty B.A., Merrick J.M., McKenney K., Sutton G.G., FitzHugh W., Fields C.A., Gocayne J.D., Scott J.D., Shirley R., Liu L.-I. , Glodek A., Kelley J.M., Weidman J.F., Phillips C.A., Spriggs T., Hedblom E., Cotton M.D., Utterback T.R., Hanna M.C., Nguyen D.T., Saudek D.M., Brandon R.C., Fine L.D., Fritchman J.L., Fuhrmann J.L., Geoghagen N.S.M., Gnehm C.L., McDonald L.A., Small K.V., Fraser C.M., Smith H.O., Venter J.C. Science 269:496-512(1995) [PubMed: 7542800] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 51907 / DSM 11121 / KW20 / Rd.

+

Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	L42023 Genomic DNA. Translation: AAC21765.1.
PIR	H64047.
RefSeq	NP_438260.1. NC_000907.1.
3D structure databases
ProteinModelPortal	P44503.
SMR	P44503. Positions 1-423.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	950990.
GenomeReviews	Gene locus HI_0087 in contig L42023_GR.
KEGG	hin:HI0087.
NMPDR	fig|71421.1.peg.86.
PATRIC	20188637. VBIHaeInf48452_0088.
TIGR	HI_0087.
Phylogenomic databases
HOGENOM	HBG521025.
OMA	MNLYNIK.
PhylomeDB	P44503.
ProtClustDB	PRK09225.
Enzyme and pathway databases
BioCyc	HINF71421:HI_0087-MONOMER.
Family and domain databases
InterPro	IPR001926. PyrdxlP-dep_enz_bsu. IPR000634. Ser/Thr_deHydtase_PyrdxlP-BS. IPR004450. Thr_synthase. [Graphical view]
KO	K01733.
Pfam	PF00291. PALP. 1 hit. [Graphical view]
SUPFAM	SSF53686. PyrdxlP-dep_enz_bsu. 1 hit.
TIGRFAMs	TIGR00260. ThrC. 1 hit.
PROSITE	PS00165. DEHYDRATASE_SER_THR. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

THRC_HAEIN

Accession

Primary (citable) accession number: P44503

Entry history

Integrated into UniProtKB/Swiss-Prot:	November 1, 1995
Last sequence update:	November 1, 1995
Last modified:	January 25, 2012
This is version 79 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program