Reviewed, UniProtKB/Swiss-Prot Q3B7M9 (PYGB_BOVIN)

Names and origin

Protein names

Recommended name:
    Glycogen phosphorylase, brain form
    EC=2.4.1.1

Gene names

Name:

PYGB

Organism

Bos taurus (Bovine)

Taxonomic identifier

9913 [NCBI]

Taxonomic lineage

Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Laurasiatheria › Cetartiodactyla › Ruminantia › Pecora › Bovidae › Bovinae › Bos

Protein attributes

Sequence length	843 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)

Function	Phosphorylase is an important allosteric enzyme in carbohydrate metabolism. Enzymes from different sources differ in their regulatory mechanisms and in their natural substrates. However, all known phosphorylases share catalytic and structural properties By similarity.
Catalytic activity	(1,4-alpha-D-glucosyl)(n) + phosphate = (1,4-alpha-D-glucosyl)(n-1) + alpha-D-glucose 1-phosphate.
Cofactor	Pyridoxal phosphate By similarity.
Enzyme regulation	Activity of phosphorylase is controlled both by allosteric means (through the noncovalent binding of metabolites) and by covalent modification. Thus AMP allosterically activates, whereas ATP, ADP, and glucose-6-phosphate allosterically inhibit, phosphorylase B By similarity.
Subunit structure	Homodimer. Dimers associate into a tetramer to form the enzymatically active phosphorylase A By similarity.
Post-translational modification	Phosphorylation of Ser-15 converts phosphorylase B (unphosphorylated) to phosphorylase A By similarity.
Sequence similarities	Belongs to the glycogen phosphorylase family.

Ontologies

Keywords
Biological process	Carbohydrate metabolism Glycogen metabolism
Ligand	Pyridoxal phosphate
Molecular function	Glycosyltransferase Transferase
PTM	Acetylation Phosphoprotein
Technical term	Allosteric enzyme
Gene Ontology (GO)
Biological process	glycogen metabolic process Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	phosphorylase activity Inferred from electronic annotation. Source: EC pyridoxal phosphate binding Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Initiator methionine	1	1	Removed By similarity
	Chain	2 – 843	842	Glycogen phosphorylase, brain form		PRO_0000239657
Sites
	Binding site	76	1	AMP By similarity
	Site	109	1	Involved in the association of subunits By similarity
	Site	143	1	Involved in the association of subunits By similarity
	Site	156	1	May be involved in allosteric control By similarity
Amino acid modifications
	Modified residue	2	1	N-acetylalanine By similarity
	Modified residue	15	1	Phosphoserine; by PHK; in form phosphorylase A By similarity
	Modified residue	76	1	Phosphotyrosine By similarity
	Modified residue	197	1	Phosphotyrosine By similarity
	Modified residue	473	1	Phosphotyrosine By similarity
	Modified residue	681	1	N6-(pyridoxal phosphate)lysine By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q3B7M9-1 [UniParc]. Last modified January 23, 2007. Version 3. Checksum: A10C12C5C052A2CA	FASTA	843	96,340
	10 20 30 40 50 60 MAKPLTDGER RKQISVRGLA GLGDVAEVRK SFNRHLHFTL VKDRNVATRR DYYLALAHTV 70 80 90 100 110 120 RDHLVGRWIR TQQRYYERDP KRIYYLSLEF YMGRTLQNTM VNLGLQNACD EAIYQLGLDL 130 140 150 160 170 180 EELEEIEEDA GLGNGGLGRL AACFLDSMAT LGLAAYGYGI RYEFGIFNQK IVNGWQVEEA 190 200 210 220 230 240 DDWLRYGNPW EKARPEYMLP VHFYGRVEHS PEGVRWLDTQ VVLAMPYDTP VPGYKNDTVN 250 260 270 280 290 300 TMRLWSAKAP NDFKLHDFNV GGYIEAVLDR NLAENISRVL YPNDNFFEGK ELRLKQEYFV 310 320 330 340 350 360 VAATLQDIIR RFKSSKFGCR DPVRTSFETF PDKVAIQLND THPALAIPEL MRILVDVEKV 370 380 390 400 410 420 DWDKAWEITK KTCAYTNHTV LPEALERWPV SMFEKLLPRH LDIIYAINQR HLDHVAALFP 430 440 450 460 470 480 GDVDRLRRMS VIEEGDCKRI NMAHLCVIGS HAVNGVARIH SEIVRQSVFK DFYELEPEKF 490 500 510 520 530 540 QNKTNGITPR RWLLLCNPGL AETIVERIGE GFLTDLSQLK KLLPLVGDEA LIRDVAQVKQ 550 560 570 580 590 600 ENKVKFSAFL EKQYGVKVNP SSMFDVHVKR IHEYKRQLLN CLHVVTLYNR IKKDPTQAFV 610 620 630 640 650 660 PRTVMIGGKA APGYHMAKKI IKLVTSIGNI VNHDPIVGDR LKVIFLENYR VSLAEKVIPA 670 680 690 700 710 720 ADLSQQISTA GTEASGTGNM KFMLNGALTI GTMDGANVEM AEEAGAENLF IFGLRVEDVE 730 740 750 760 770 780 ALDRKGYNAH EYYDRLPELR QAVDQINGGF FSPREPDCFK DVVNMLLNHD RFKVFADYEA 790 800 810 820 830 840 YVACQARVDQ LYRNPKEWTK KVIRNIACSG KFSSDRTITE YAHDIWGAEP PALQTPPPSL PRD

References

[1]	NIH - Mammalian Gene Collection (MGC) project Submitted (OCT-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Strain: Hereford. Tissue: Thymus.

Cross-references

Sequence databases
EMBLGenBankDDBJ	BC107536 mRNA. Translation: AAI07537.1.
IPI	IPI00702305.
RefSeq	NP_001030347.1.
UniGene	Bt.6718
3D structure databases
SMR	Q3B7M9. Positions 13-837.
ModBase	Search...
Protein family/group databases
CAZy	GT35. Glycosyltransferase Family 35.
Proteomic databases
PRIDE	Q3B7M9.
Genome annotation databases
Ensembl	ENSBTAT00000006069; ENSBTAP00000006069; ENSBTAG00000004625; Bos taurus. [Genome view]
GeneID	505560.
KEGG	bta:505560.
Organism-specific databases
CTD	505560.
Phylogenomic databases
HOVERGEN	Q3B7M9.
Enzyme and pathway databases
BRENDA	2.4.1.1. 251.
Family and domain databases
InterPro	IPR011833. Glycg_phsphrylas. IPR000811. Glyco_trans_35. [Graphical view]
PANTHER	PTHR11468. Glyco_trans_35. 1 hit.
Pfam	PF00343. Phosphorylase. 1 hit. [Graphical view]
PIRSF	PIRSF000460. Pprylas_GlgP. 1 hit.
TIGRFAMs	TIGR02093. P_ylase. 1 hit.
PROSITE	PS00102. PHOSPHORYLASE. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

PYGB_BOVIN

Accession

Primary (citable) accession number: Q3B7M9

Entry history

Integrated into UniProtKB/Swiss-Prot:	June 13, 2006
Last sequence update:	January 23, 2007
Last modified:	September 22, 2009
This is version 37 of the entry and version 3 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HPI (Human Proteome Initiative)