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    KRT33A keratin 33A [ Homo sapiens (human) ]

    Gene ID: 3883, updated on 10-Dec-2024

    Summary

    Official Symbol
    KRT33Aprovided by HGNC
    Official Full Name
    keratin 33Aprovided by HGNC
    Primary source
    HGNC:HGNC:6450
    See related
    Ensembl:ENSG00000006059 MIM:602761; AllianceGenome:HGNC:6450
    Gene type
    protein coding
    RefSeq status
    REVIEWED
    Organism
    Homo sapiens
    Lineage
    Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
    Also known as
    HA3I; K33A; Ha-3I; Krt1-3; hHa3-I; KRTHA3A
    Summary
    This gene encodes a member of the keratin gene family. This gene is one of multiple type I hair keratin genes that are clustered in a region of chromosome 17q12-q21 and have the same direction of transcription. As a type I hair keratin, the encoded protein is an acidic protein which heterodimerizes with type II keratins to form hair and nails. There are two isoforms of this protein, encoded by two separate genes, keratin 33A and keratin 33B. [provided by RefSeq, May 2012]
    Expression
    Low expression observed in reference dataset See more
    Orthologs
    NEW
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    Try the new Transcript table

    Genomic context

    See KRT33A in Genome Data Viewer
    Location:
    17q21.2
    Exon count:
    8
    Annotation release Status Assembly Chr Location
    RS_2024_08 current GRCh38.p14 (GCF_000001405.40) 17 NC_000017.11 (41346092..41350828, complement)
    RS_2024_08 current T2T-CHM13v2.0 (GCF_009914755.1) 17 NC_060941.1 (42201624..42206360, complement)
    RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 17 NC_000017.10 (39502344..39507080, complement)

    Chromosome 17 - NC_000017.11Genomic Context describing neighboring genes Neighboring gene keratin associated protein 17-1 Neighboring gene TBC1 domain family member 3 pseudogene 7 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:39485793-39486362 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:39502712-39503212 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:39503213-39503713 Neighboring gene uncharacterized LOC105371778 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:39520859-39521360 Neighboring gene keratin 33B

    Genomic regions, transcripts, and products

    Expression

    • Project title: Tissue-specific circular RNA induction during human fetal development
    • Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
    • BioProject: PRJNA270632
    • Publication: PMID 26076956
    • Analysis date: Mon Apr 2 22:54:59 2018

    Interactions

    Products Interactant Other Gene Complex Source Pubs Description

    General gene information

    Markers

    Gene Ontology Provided by GOA

    Function Evidence Code Pubs
    enables structural molecule activity IEA
    Inferred from Electronic Annotation
    more info
     
    Process Evidence Code Pubs
    involved_in epithelial cell differentiation IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    involved_in intermediate filament organization IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    Component Evidence Code Pubs
    is_active_in cytoskeleton IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    located_in cytosol TAS
    Traceable Author Statement
    more info
     
    located_in extracellular space HDA PubMed 
    located_in intermediate filament IEA
    Inferred from Electronic Annotation
    more info
     

    General protein information

    Preferred Names
    keratin, type I cuticular Ha3-I
    Names
    hair keratin, type I Ha3-I
    hard keratin, type I,3I
    keratin 33A, type I
    keratin, hair, acidic, 3A

    NCBI Reference Sequences (RefSeq)

    NEW Try the new Transcript table

    RefSeqs maintained independently of Annotated Genomes

    These reference sequences exist independently of genome builds. Explain

    These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

    Genomic

    1. NG_012289.1 RefSeqGene

      Range
      4977..9713
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. NM_004138.4NP_004129.2  keratin, type I cuticular Ha3-I

      See identical proteins and their annotated locations for NP_004129.2

      Status: REVIEWED

      Source sequence(s)
      AC003958, AJ633621
      Consensus CDS
      CCDS11388.1
      UniProtKB/Swiss-Prot
      B2RA87, O76009, Q6NTB9, Q6ZZB9
      Related
      ENSP00000007735.3, ENST00000007735.4
      Conserved Domains (1) summary
      pfam00038
      Location:55366
      Filament; Intermediate filament protein

    RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2024_08

    The following sections contain reference sequences that belong to a specific genome build. Explain

    Reference GRCh38.p14 Primary Assembly

    Genomic

    1. NC_000017.11 Reference GRCh38.p14 Primary Assembly

      Range
      41346092..41350828 complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. XM_011524786.4XP_011523088.1  keratin, type I cuticular Ha3-I isoform X1

      See identical proteins and their annotated locations for XP_011523088.1

      Conserved Domains (1) summary
      pfam00038
      Location:37207
      Filament; Intermediate filament protein

    Reference GRCh38.p14 PATCHES

    Genomic

    1. NW_025791801.1 Reference GRCh38.p14 PATCHES

      Range
      285996..290732 complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. XM_054333197.1XP_054189172.1  keratin, type I cuticular Ha3-I isoform X1

    Reference GRCh38.p14 ALT_REF_LOCI_1

    Genomic

    1. NW_003315953.2 Reference GRCh38.p14 ALT_REF_LOCI_1

      Range
      89433..94169
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. XM_054329581.1XP_054185556.1  keratin, type I cuticular Ha3-I isoform X1

    Alternate T2T-CHM13v2.0

    Genomic

    1. NC_060941.1 Alternate T2T-CHM13v2.0

      Range
      42201624..42206360 complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. XM_054316025.1XP_054172000.1  keratin, type I cuticular Ha3-I isoform X1