Reviewed, UniProtKB/Swiss-Prot P03694 (VDMB_BPT7)

Names and origin

Protein names

Recommended name:
    DNA maturase B
Alternative name(s):
    DNA-packaging protein B
    GP19

Gene names

Name:

19

Organism

Enterobacteria phage T7 (Bacteriophage T7)

Taxonomic identifier

10760 [NCBI]

Taxonomic lineage

Viruses › dsDNA viruses, no RNA stage › Caudovirales › Podoviridae › Autographivirinae › T7-like viruses

Virus host

Escherichia coli [TaxID: 562]

Protein attributes

Sequence length	586 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Predicted.

General annotation (Comments)

Function	During the growth of this phage, DNA is synthesized as concatemers. During DNA packaging mature monomers are cut from the concatemers. Gp19 is a nonspecific endonuclease that cause double stranded breaks. Its activity is suppressible by either ATP or gp18.
Subunit structure	Gp18 and gp19 associate with DNA and prohead.

Ontologies

Keywords
Biological process	DNA packaging
Ligand	ATP-binding Nucleotide-binding
Molecular function	Endonuclease Hydrolase Nuclease
Gene Ontology (GO)
Biological process	DNA packaging Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	ATP binding Inferred from electronic annotation. Source: UniProtKB-KW endonuclease activity Inferred from electronic annotation. Source: UniProtKB-KW
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 586	586	DNA maturase B		PRO_0000106541
Regions
	Nucleotide binding	58 – 65	8	ATP Potential

Sequences

	Sequence		Length	Mass (Da)
	P03694-1 [UniParc]. Last modified July 21, 1986. Version 1. Checksum: 0030B8EE701CB0A9	FASTA	586	66,261
	10 20 30 40 50 60 MSTQSNRNAL VVAQLKGDFV AFLFVLWKAL NLPVPTKCQI DMAKVLANGD NKKFILQAFR 70 80 90 100 110 120 GIGKSFITCA FVVWSLWRDP QLKILIVSAS KERADANSIF IKNIIDLLPF LSELKPRPGQ 130 140 150 160 170 180 RDSVISFDVG PANPDHSPSV KSVGITGQLT GSRADIIIAD DVEIPSNSAT MGAREKLWTL 190 200 210 220 230 240 VQEFAALLKP LPSSRVIYLG TPQTEMTLYK ELEDNRGYTT IIWPALYPRT REENLYYSQR 250 260 270 280 290 300 LAPMLRAEYD ENPEALAGTP TDPVRFDRDD LRERELEYGK AGFTLQFMLN PNLSDAEKYP 310 320 330 340 350 360 LRLRDAIVAA LDLEKAPMHY QWLPNRQNII EDLPNVGLKG DDLHTYHDCS NNSGQYQQKI 370 380 390 400 410 420 LVIDPSGRGK DETGYAVLYT LNGYIYLMEA GGFRDGYSDK TLELLAKKAK QWGVQTVVYE 430 440 450 460 470 480 SNFGDGMFGK VFSPILLKHH NCAMEEIRAR GMKEMRICDT LEPVMQTHRL VIRDEVIRAD 490 500 510 520 530 540 YQSARDVDGK HDVKYSLFYQ MTRITREKGA LAHDDRLDAL ALGIEYLRES MQLDSVKVEG 550 560 570 580 EVLADFLEEH MMRPTVAATH IIEMSVGGVD VYSEDDEGYG TSFIEW

References

[1]	"Complete nucleotide sequence of bacteriophage T7 DNA and the locations of T7 genetic elements." Dunn J.J., Studier F.W. J. Mol. Biol. 166:477-535(1983) [PubMed: 6864790] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	V01146 Genomic DNA. Translation: CAA24440.1.
PIR	JVBPB7. S42338.
RefSeq	NP_042010.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	1261062.
GenomeReviews	Gene locus 19 in contig V01146_GR.
Family and domain databases
ProtoNet	Search...

Entry information

Entry name

VDMB_BPT7

Accession

Primary (citable) accession number: P03694

Entry history

Integrated into UniProtKB/Swiss-Prot:	July 21, 1986
Last sequence update:	July 21, 1986
Last modified:	May 5, 2009
This is version 41 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

Virus (Virus annotation project)