P50057 (PLAS_PROHO) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Plastocyanin

Gene names

Name:

petE

Organism

Prochlorothrix hollandica

Taxonomic identifier

1223 [NCBI]

Taxonomic lineage

cellular organisms › Bacteria › Cyanobacteria › Prochlorales › Prochlorotrichaceae › Prochlorothrix

Protein attributes

Sequence length	131 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is further processed into a mature form.
Protein existence	Evidence at protein level

General annotation (Comments)

Function	Participates in electron transfer between P700 and the cytochrome b6-f complex in photosystem I. HAMAP-Rule MF_00566
Sequence similarities	Contains 1 plastocyanin-like domain.

Ontologies

Keywords
Biological process	Electron transport Transport
Domain	Signal
Ligand	Copper Metal-binding
Technical term	3D-structure
Gene Ontology (GO)
Biological_process	electron transport chain Inferred from electronic annotation. Source: UniProtKB-KW
Molecular_function	copper ion binding Inferred from electronic annotation. Source: HAMAP electron carrier activity Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

Feature key

Position(s)

Length

Description

Graphical view

Feature identifier

Molecule processing

Signal peptide

1 – 34

34

HAMAP-Rule MF_00566

Chain

35 – 131

97

Plastocyanin HAMAP-Rule MF_00566

PRO_0000002902

Regions

Domain

35 – 131

97

Plastocyanin-like

Sites

Metal binding

73

1

Copper

Metal binding

116

1

Copper

Metal binding

119

1

Copper

Metal binding

124

1

Copper

Experimental info

Sequence conflict

95

1

A → R in AAD09144. Ref.1

Secondary structure

1

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131

Helix Strand Turn

Details...

Beta strand

37 – 43

7

Turn

44 – 46

3

Beta strand

47 – 57

11

Beta strand

62 – 67

6

Beta strand

69 – 71

3

Beta strand

75 – 79

5

Helix

86 – 89

4

Beta strand

91 – 95

5

Beta strand

102 – 105

4

Beta strand

110 – 115

6

Turn

119 – 123

5

Beta strand

125 – 130

6

Sequences

	Sequence		Length	Mass (Da)
	P50057 [UniParc]. Last modified May 30, 2000. Version 2. Checksum: 72872020BB7326D0	FASTA	131	13,613
	10 20 30 40 50 60 MKFFASLSKR FAPVLSLVVL VAGTLLLSAA PASAATVQIK MGTDKYAPLY EPKALSISAG 70 80 90 100 110 120 DTVEFVMNKV GPHNVIFDKV PAGESAPALS NTKLAIAPGS FYSVTLGTPG TYSFYCTPHR 130 GAGMVGTITV E

References

[1]	"Nucleotide sequence of the petE gene encoding plastocyanin from the photosynthetic prokaryote, Prochlorothrix hollandica." Arudchandran A., Seeburg D., Burkhart W., Bullerjahn G.S. Biochim. Biophys. Acta 1188:447-449(1994) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. Strain: ACC 15-2.
[2]	"NMR solution structure of plastocyanin from the photosynthetic prokaryote, Prochlorothrix hollandica." Babu C.R., Volkman B.F., Bullerjahn G.S. Biochemistry 38:4988-4995(1999) [PubMed] [Europe PMC] [Abstract] Cited for: STRUCTURE BY NMR OF 35-131, SEQUENCE REVISION TO 95.
+	Additional computationally mapped references.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ

U13912 Genomic DNA. Translation: AAD09144.1.

PIR

A44637.

3D structure databases

PDBe
RCSB PDB
PDBj

Entry	Method	Resolution (Å)	Chain	Positions	PDBsum
1B3I	NMR	-	A	37-131	[»]
2B3I	NMR	-	A	37-131	[»]
2JXM	NMR	-	A	37-131	[»]

ProteinModelPortal

P50057.

SMR

P50057. Positions 35-131.

ModBase

Search...

Protocols and materials databases

StructuralBiologyKnowledgebase

Search...

Family and domain databases

Gene3D

2.60.40.420. 1 hit.

HAMAP

MF_00566. Cytb6_f_plastocyanin.

InterPro

IPR000923. BlueCu_1.
IPR001235. Copper_blue.
IPR008972. Cupredoxin.
IPR002387. Plastocyanin.
IPR023511. Plastocyanin_cyanobac.
[Graphical view]

Pfam

PF00127. Copper-bind. 1 hit.
[Graphical view]

PRINTS

PR00156. COPPERBLUE.
PR00157. PLASTOCYANIN.

SUPFAM

SSF49503. Cupredoxin. 1 hit.

TIGRFAMs

TIGR02656. cyanin_plasto. 1 hit.

PROSITE

PS00196. COPPER_BLUE. 1 hit.
[Graphical view]

ProtoNet

Search...

Other

EvolutionaryTrace

P50057.

Entry information

Entry name

PLAS_PROHO

Accession

Primary (citable) accession number: P50057

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 1, 1996
Last sequence update:	May 30, 2000
Last modified:	April 3, 2013
This is version 75 of the entry and version 2 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program