DAZ2 deleted in azoospermia 2 [Homo sapiens (human)] - Gene

Summary

Official Symbol: DAZ2provided by HGNC
Official Full Name: deleted in azoospermia 2provided by HGNC
Primary source: HGNC:HGNC:15964
See related: Ensembl:ENSG00000205944 MIM:400026; AllianceGenome:HGNC:15964
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: pDP1678
Summary: This gene is a member of the DAZ gene family and is a candidate for the human Y-chromosomal azoospermia factor (AZF). Its expression is restricted to premeiotic germ cells, particularly in spermatogonia. It encodes an RNA-binding protein that is important for spermatogenesis. Four copies of this gene are found on chromosome Y within palindromic duplications; one pair of genes is part of the P2 palindrome and the second pair is part of the P1 palindrome. Each gene contains a 2.4 kb repeat including a 72-bp exon, called the DAZ repeat; the number of DAZ repeats is variable and there are several variations in the sequence of the DAZ repeat. Each copy of the gene also contains a 10.8 kb region that may be amplified; this region includes five exons that encode an RNA recognition motif (RRM) domain. This gene contains one copy of the 10.8 kb repeat. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]
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Genomic context

Location:: Yq11.223

Exon count:: 28

Annotation release	Status	Assembly	Chr	Location
RS_2024_08	current	GRCh38.p14 (GCF_000001405.40)	Y	NC_000024.10 (23219457..23291356)
RS_2024_08	current	T2T-CHM13v2.0 (GCF_009914755.1)	Y	NC_060948.1 (25661821..25719401)
RS_2024_09	previous assembly	GRCh37.p13 (GCF_000001405.25)	Y	NC_000024.9 (25365604..25437503)

Chromosome Y - NC_000024.10 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Expression

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See details

Project title: HPA RNA-seq normal tissues HPA RNA-seq normal tissues
Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
BioProject: PRJEB4337
Publication: PMID 24309898
Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Direct reprogramming of human Sertoli cells into male germline stem cells with the self-renewal and differentiation potentials via overexpressing DAZL/DAZ2/BOULE genes.
Title: Direct reprogramming of human Sertoli cells into male germline stem cells with the self-renewal and differentiation potentials via overexpressing DAZL/DAZ2/BOULE genes.
study reported a new type of AZFc deletion (gr/gr-DAZ2-DAZ4-CDY1b) and hypothesis that this new deletion is the result of 2 successive events favored by the unstable structure of AZFc region; also demonstrated that this deletion constitutes a relative high-risk factor for male infertility in Tunisian population
Title: gr/gr-DAZ2-DAZ4-CDY1b deletion is a high-risk factor for male infertility in Tunisian population.
Studies indicate that partial RNA-binding proteins DAZ1/2 deletion was associated wih male infertility, but partial RNA-binding proteins DAZ3/4 deletion was not associated with male infertility.
Title: Impact of partial DAZ1/2 deletion and partial DAZ3/4 deletion on male infertility.
There appears to be an asociation of DAZ1/DAZ2 deletion with spermatogenic impairment and male infertility in the South Chinese population.
Title: Association of DAZ1/DAZ2 deletion with spermatogenic impairment and male infertility in the South Chinese population.
Deletion of DAZ2 and DAZ4 gene copies is associated with male infertility.
Title: Combined deletion of DAZ2 and DAZ4 copies of Y chromosome DAZ gene is associated with male infertility in Tunisian men.
All four DAZ genes are expressed in the human testis, and their products are highly polymorphic among men
Title: Polymorphic expression of DAZ proteins in the human testis.
Observational study of genotype prevalence and gene-disease association. (HuGE Navigator)
Title: A frequent partial AZFc deletion does not render an increased risk of spermatogenic impairment in East Asians.
AZFc subdeletions do not seem to cause severe impairment of spermatogenesis in Chilean men.
Title: AZFc partial deletions in Chilean men with severe spermatogenic failure.
Observational study of gene-disease association. (HuGE Navigator)
Title: [Study on DAZ gene copy deletion in severe oligozoospermia sperm donor for ICSI].
Observational study of genotype prevalence. (HuGE Navigator)
Title: DAZ1/DAZ2 cluster deletion mediated by gr/gr recombination per se may not be sufficient for spermatogenesis impairment: a study of Chinese normozoospermic men.

Submit: New GeneRIF Correction See all GeneRIFs (11)

Phenotypes

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Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

Associated conditions

Description	Tests
Spermatogenic failure, Y-linked, 2 MedGen: C1839071 OMIM: 415000 GeneReviews: Y Chromosome Infertility	Compare labs

Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

RH65618 (e-PCR)
- UniSTS:88622

DAZ2_3058 (e-PCR)
- UniSTS:462151

G38350 (e-PCR)
- UniSTS:80968

G65827 (e-PCR)
- UniSTS:166986

NoName (e-PCR)
- UniSTS:482123

G65834 (e-PCR)
- UniSTS:230500

RH38677 (e-PCR)
- UniSTS:88682

DAZ-SNV_II (e-PCR)
- UniSTS:241026

SHGC-35663 (e-PCR)
- UniSTS:60325

NoName (e-PCR)
- UniSTS:480700

G38349 (e-PCR)
- UniSTS:54754

RH47942 (e-PCR)
- UniSTS:92394

Gene Ontology Provided by GOA

Function	Evidence Code	Pubs
enables RNA binding	TAS Traceable Author Statement more info	PubMed
enables mRNA 3'-UTR binding	IBA Inferred from Biological aspect of Ancestor more info
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables translation activator activity	IBA Inferred from Biological aspect of Ancestor more info

Process	Evidence Code	Pubs
involved_in 3'-UTR-mediated mRNA stabilization	IBA Inferred from Biological aspect of Ancestor more info
involved_in cell differentiation	IEA Inferred from Electronic Annotation more info
involved_in positive regulation of translational initiation	IBA Inferred from Biological aspect of Ancestor more info
involved_in single fertilization	TAS Traceable Author Statement more info	PubMed
involved_in spermatogenesis	IEA Inferred from Electronic Annotation more info

Component	Evidence Code	Pubs
is_active_in cytoplasm	IBA Inferred from Biological aspect of Ancestor more info
located_in nucleus	IEA Inferred from Electronic Annotation more info
part_of protein-containing complex	IDA Inferred from Direct Assay more info	PubMed

General protein information

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Preferred Names: deleted in azoospermia protein 2

NCBI Reference Sequences (RefSeq)

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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

NG_028267.1 RefSeqGene

Range

5077..76900

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GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

NM_001005785.2 → NP_001005785.1 deleted in azoospermia protein 2 isoform 2

See identical proteins and their annotated locations for NP_001005785.1

Status: REVIEWED

Description

Transcript Variant: This variant (2) has multiple differences in the coding region but maintains the reading frame, compared to variant 1. Variant 2 encodes isoform 2 which lacks one DAZ repeat, compared to isoform 1.

Source sequence(s)

AF414184, AK302690

UniProtKB/Swiss-Prot

Q13117

UniProtKB/TrEMBL

B4DZ07

Conserved Domains (2) summary

COG0724
Location:39 → 118

RRM; RNA recognition motif (RRM) domain [Translation, ribosomal structure and biogenesis]

cd12672
Location:35 → 116

RRM_DAZL; RNA recognition motif in vertebrate deleted in azoospermia-like (DAZL) proteins
NM_001005786.2 → NP_001005786.2 deleted in azoospermia protein 2 isoform 3

Status: REVIEWED

Description

Transcript Variant: This variant (3) lacks several in-frame exons in the coding region, compared to variant 1. Variant 3 encodes isoform 3 which lacks eight DAZ repeats, compared to isoform 1.

Source sequence(s)

AC053490, AF414184, AK302690, U21663

UniProtKB/TrEMBL

A0A0A0MSR9, E7ETR3, E7EU39

Conserved Domains (2) summary

COG0724
Location:39 → 118

RRM; RNA recognition motif (RRM) domain [Translation, ribosomal structure and biogenesis]

cd12672
Location:35 → 116

RRM_DAZL; RNA recognition motif in vertebrate deleted in azoospermia-like (DAZL) proteins
NM_001388493.1 → NP_001375422.1 deleted in azoospermia protein 2 isoform 4

Status: REVIEWED

Source sequence(s)

AC006983, AC007039, AC053490

Related

ENSP00000371870.4, ENST00000382433.4

Conserved Domains (2) summary

TIGR01628
Location:40 → 247

PABP-1234; polyadenylate binding protein, human types 1, 2, 3, 4 family

cd12672
Location:35 → 116

RRM_DAZL; RNA recognition motif (RRM) found in vertebrate deleted in azoospermia-like (DAZL) proteins
NM_001388494.1 → NP_001375423.1 deleted in azoospermia protein 2 isoform 5

Status: REVIEWED

Source sequence(s)

AC006983, AC007039, AC053490

Conserved Domains (3) summary

TIGR01628
Location:40 → 247

PABP-1234; polyadenylate binding protein, human types 1, 2, 3, 4 family

pfam18872
Location:362 → 382

Daz; Daz repeat

cd12672
Location:35 → 116

RRM_DAZL; RNA recognition motif (RRM) found in vertebrate deleted in azoospermia-like (DAZL) proteins
NM_001388495.1 → NP_001375424.1 deleted in azoospermia protein 2 isoform 6

Status: REVIEWED

Source sequence(s)

AC006983, AC007039, AC053490

Conserved Domains (2) summary

TIGR01628
Location:3 → 198

PABP-1234; polyadenylate binding protein, human types 1, 2, 3, 4 family

cl17169
Location:1 → 67

RRM_SF; RNA recognition motif (RRM) superfamily
NM_001389303.1 → NP_001376232.1 deleted in azoospermia protein 2 isoform 7

Status: REVIEWED

Source sequence(s)

AC006983, AC007039, AC053490

Consensus CDS

CCDS94719.1

UniProtKB/TrEMBL

E9PBY2

Related

ENSP00000371877.1, ENST00000382440.6

Conserved Domains (2) summary

TIGR01628
Location:40 → 247

PABP-1234; polyadenylate binding protein, human types 1, 2, 3, 4 family

cd12672
Location:35 → 116

RRM_DAZL; RNA recognition motif (RRM) found in vertebrate deleted in azoospermia-like (DAZL) proteins
NM_020363.3 → NP_065096.2 deleted in azoospermia protein 2 isoform 1

See identical proteins and their annotated locations for NP_065096.2

Status: REVIEWED

Description

Transcript Variant: This variant (1) represents the longest transcript. Variant 1 encodes isoform 1 which includes 15 DAZ repeats.

Source sequence(s)

AC006983, AF248480, AK302690

UniProtKB/Swiss-Prot

Q13117, Q2KHN6, Q96P41, Q9NR91

Conserved Domains (2) summary

COG0724
Location:39 → 118

RRM; RNA recognition motif (RRM) domain [Translation, ribosomal structure and biogenesis]

cd12672
Location:35 → 116

RRM_DAZL; RNA recognition motif in vertebrate deleted in azoospermia-like (DAZL) proteins