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Protein

Allophycocyanin beta chain

Gene

apcB

Organism
Mastigocladus laminosus (Fischerella sp.)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex. Allophycocyanin has a maximum absorption at approximately 650 nanometers.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei81Phycocyanobilin chromophore (covalent; via 1 link)1

GO - Biological processi

Keywordsi

Biological processElectron transport, Photosynthesis, Transport
LigandBile pigment, Chromophore

Names & Taxonomyi

Protein namesi
Recommended name:
Allophycocyanin beta chain
Gene namesi
Name:apcB
OrganismiMastigocladus laminosus (Fischerella sp.)
Taxonomic identifieri83541 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaNostocalesHapalosiphonaceaeMastigocladus

Subcellular locationi

GO - Cellular componenti

Keywords - Cellular componenti

Membrane, Phycobilisome, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001990991 – 161Allophycocyanin beta chainAdd BLAST161

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei71N4-methylasparagine3 Publications1

Post-translational modificationi

Contains one covalently linked phycocyanobilin chromophore.

Keywords - PTMi

Methylation

Interactioni

Subunit structurei

Heterodimer of an alpha and a beta chain.

Structurei

Secondary structure

1161
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi4 – 13Combined sources10
Turni14 – 16Combined sources3
Helixi21 – 46Combined sources26
Helixi48 – 59Combined sources12
Turni60 – 62Combined sources3
Turni64 – 66Combined sources3
Helixi75 – 98Combined sources24
Helixi102 – 107Combined sources6
Helixi112 – 119Combined sources8
Helixi123 – 160Combined sources38

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1B33X-ray2.30B/D/F/I/K/M1-161[»]
ProteinModelPortaliP00318.
SMRiP00318.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP00318.

Family & Domainsi

Sequence similaritiesi

Belongs to the phycobiliprotein family.Curated

Family and domain databases

CDDicd12126. APC_beta. 1 hit.
InterProiView protein in InterPro
IPR006245. ApcB.
IPR009050. Globin-like.
IPR012128. Phycobilisome_asu/bsu.
PANTHERiPTHR34011:SF12. PTHR34011:SF12. 1 hit.
PfamiView protein in Pfam
PF00502. Phycobilisome. 1 hit.
PIRSFiPIRSF000081. Phycocyanin. 1 hit.
SUPFAMiSSF46458. SSF46458. 1 hit.
TIGRFAMsiTIGR01337. apcB. 1 hit.

Sequencei

Sequence statusi: Complete.

P00318-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MQDAITAVIN SSDVQGKYLD TAALEKLKSY FSTGELRVRA ATTIAANAAA
60 70 80 90 100
IVKEAVAKSL LYSDITRPGG NMYTTRRYAA CIRDLDYYLR YATYAMLAGD
110 120 130 140 150
PSILDERVLN GLKETYNSLG VPISATVQAI QAMKEVTASL VGPDAGKEMG
160
VYFDYICSGL S
Length:161
Mass (Da):17,374
Last modified:February 1, 1991 - v2
Checksum:i18E7DD78D7178350
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti59 – 60SL → KT AA sequence (PubMed:6792029).Curated2
Sequence conflicti67R → L AA sequence (PubMed:6792029).Curated1
Sequence conflicti71N → D AA sequence (PubMed:6792029).Curated1

Similar proteinsi

Entry informationi

Entry nameiAPCB_MASLA
AccessioniPrimary (citable) accession number: P00318
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 21, 1986
Last sequence update: February 1, 1991
Last modified: April 12, 2017
This is version 93 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Direct protein sequencing

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families