Homo sapiens Gene: HAS1
Summary
InnateDB Gene IDBG-66243.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol HAS1
Gene Name hyaluronan synthase 1
Synonyms HAS;
Species Homo sapiens
Ensembl Gene ENSG00000105509
Encoded Proteins
hyaluronan synthase 1
hyaluronan synthase 1
Protein Structure
Useful resources Stemformatics EHFPI ImmGen
Entrez Gene
Summary Hyaluronan or hyaluronic acid (HA) is a high molecular weight unbranched polysaccharide synthesized by a wide variety of organisms from bacteria to mammals, and is a constituent of the extracellular matrix. It consists of alternating glucuronic acid and N-acetylglucosamine residues that are linked by beta-1-3 and beta-1-4 glycosidic bonds. HA is synthesized by membrane-bound synthase at the inner surface of the plasma membrane, and the chains are extruded through pore-like structures into the extracellular space. It serves a variety of functions, including space filling, lubrication of joints, and provision of a matrix through which cells can migrate. HA is actively produced during wound healing and tissue repair to provide a framework for ingrowth of blood vessels and fibroblasts. Changes in the serum concentration of HA are associated with inflammatory and degenerative arthropathies such as rheumatoid arthritis. In addition, the interaction of HA with the leukocyte receptor CD44 is important in tissue-specific homing by leukocytes, and overexpression of HA receptors has been correlated with tumor metastasis. HAS1 is a member of the newly identified vertebrate gene family encoding putative hyaluronan synthases, and its amino acid sequence shows significant homology to the hasA gene product of Streptococcus pyogenes, a glycosaminoglycan synthetase (DG42) from Xenopus laevis, and a recently described murine hyaluronan synthase. [provided by RefSeq, Jul 2008]
Hyaluronan or hyaluronic acid (HA) is a high molecular weight unbranched polysaccharide synthesized by a wide variety of organisms from bacteria to mammals, and is a constituent of the extracellular matrix. It consists of alternating glucuronic acid and N-acetylglucosamine residues that are linked by beta-1-3 and beta-1-4 glycosidic bonds. HA is synthesized by membrane-bound synthase at the inner surface of the plasma membrane, and the chains are extruded through pore-like structures into the extracellular space. It serves a variety of functions, including space filling, lubrication of joints, and provision of a matrix through which cells can migrate. HA is actively produced during wound healing and tissue repair to provide a framework for ingrowth of blood vessels and fibroblasts. Changes in the serum concentration of HA are associated with inflammatory and degenerative arthropathies such as rheumatoid arthritis. In addition, the interaction of HA with the leukocyte receptor CD44 is important in tissue-specific homing by leukocytes, and overexpression of HA receptors has been correlated with tumor metastasis. HAS1 is a member of the newly identified vertebrate gene family encoding putative hyaluronan synthases, and its amino acid sequence shows significant homology to the hasA gene product of Streptococcus pyogenes, a glycosaminoglycan synthetase (DG42) from Xenopus laevis, and a recently described murine hyaluronan synthase. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2014]
Gene Information
Type Protein coding
Genomic Location Chromosome 19:51713112-51723994
Strand Reverse strand
Band q13.41
Transcripts
ENST00000222115 ENSP00000222115
ENST00000540069 ENSP00000445021
ENST00000601667 ENSP00000471953
ENST00000601714 ENSP00000472821
ENST00000594621 ENSP00000469165
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 5 experimentally validated interaction(s) in this database.
Experimentally validated
Total 5 [view]
Protein-Protein 4 [view]
Protein-DNA 1 [view]
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Gene Ontology

Molecular Function
Accession GO Term
GO:0050501 hyaluronan synthase activity
Biological Process
GO:0005975 carbohydrate metabolic process
GO:0006024 glycosaminoglycan biosynthetic process
GO:0007155 cell adhesion
GO:0010764 negative regulation of fibroblast migration
GO:0030203 glycosaminoglycan metabolic process
GO:0030212 hyaluronan metabolic process
GO:0030213 hyaluronan biosynthetic process
GO:0036120 cellular response to platelet-derived growth factor stimulus
GO:0044281 small molecule metabolic process
GO:0045226 extracellular polysaccharide biosynthetic process
GO:0085029 extracellular matrix assembly
Cellular Component
GO:0005886 plasma membrane
GO:0005887 integral component of plasma membrane
GO:0016020 membrane
Orthologs
Species
Mus musculus
Bos taurus
Gene ID
Gene Order
Method
Confidence
Comments
Non-SSD Ortholog
Possible paralog/unusual divergence/ gene prediction error
Not yet available
Non-SSD Ortholog
Possible paralog/unusual divergence/ gene prediction error
Pathways
NETPATH
REACTOME
Mucopolysaccharidoses pathway
Myoclonic epilepsy of Lafora pathway
Defective B4GALT7 causes EDS, progeroid type pathway
Defective CHST6 causes MCDC1 pathway
MPS VI - Maroteaux-Lamy syndrome pathway
Defective PAPSS2 causes SEMD-PA pathway
Metabolism of carbohydrates pathway
MPS IIID - Sanfilippo syndrome D pathway
Defective SLC26A2 causes chondrodysplasias pathway
MPS IX - Natowicz syndrome pathway
Defective EXT1 causes exostoses 1, TRPS2 and CHDS pathway
Defective CHST14 causes EDS, musculocontractural type pathway
MPS IV - Morquio syndrome B pathway
Defective B3GAT3 causes JDSSDHD pathway
Defective CHST3 causes SEDCJD pathway
MPS IV - Morquio syndrome A pathway
Defective EXT2 causes exostoses 2 pathway
Diseases associated with glycosaminoglycan metabolism pathway
MPS II - Hunter syndrome pathway
Hyaluronan biosynthesis and export pathway
Defective B4GALT1 causes B4GALT1-CDG (CDG-2d) pathway
Glycosaminoglycan metabolism pathway
Diseases of glycosylation pathway
MPS VII - Sly syndrome pathway
Defective CHSY1 causes TPBS pathway
Metabolism pathway
MPS I - Hurler syndrome pathway
MPS IIIA - Sanfilippo syndrome A pathway
Hyaluronan metabolism pathway
MPS IIIC - Sanfilippo syndrome C pathway
Disease pathway
Glycogen storage diseases pathway
MPS IIIB - Sanfilippo syndrome B pathway
KEGG
INOH
PID BIOCARTA
PID NCI
Cross-References
SwissProt
TrEMBL
UniProt Splice Variant
Entrez Gene
UniGene Hs.57697
RefSeq NM_001297436 NM_001523 XM_005258834
HUGO
OMIM
CCDS CCDS12838 CCDS74436
HPRD 03271
IMGT
EMBL
GenPept
RNA Seq Atlas