diff --git a/sci-biology/mouse-brain-atlases/ChangeLog b/sci-biology/mouse-brain-atlases/ChangeLog
new file mode 100644
index 0000000..fe3c819
--- /dev/null
+++ b/sci-biology/mouse-brain-atlases/ChangeLog
@@ -0,0 +1,5 @@
+*mouse-brain-atlases-0.5.3 (28 Dec 2018)
+
+  28 Dec 2018; Horea Christian <h.chr@mail.ru> +metadata.xml,
+  +mouse-brain-atlases-0.5.3.ebuild:
+  sci-biology/mouse-brain-atlases: version bump  ahead of Gentoo Science
diff --git a/sci-biology/mouse-brain-atlases/Manifest b/sci-biology/mouse-brain-atlases/Manifest
new file mode 100644
index 0000000..c984d91
--- /dev/null
+++ b/sci-biology/mouse-brain-atlases/Manifest
@@ -0,0 +1,2 @@
+DIST mouse-brain-atlases-0.5.3.tar.xz 591935168 SHA256 ade5f957555d4ab4a1e679f8db7630911b2d3e6c7827d2e36ecd001f0deee333 SHA512 7d7ca79f99d03e4a9a97ccf6517fc6570770bee0cea80c2b31e7c4fb4500b8eb49ffb7df5579901c12dd982fd3efb6fc93490dcf53da715c167d47939ea44bdb WHIRLPOOL d1d73424b80b5fa9333a8db37362c22977e8aa3c7cf428d9062669f4fbb724e3dba5d11f598f61ed77fcd1328afca3dfea7f91f2cb3bee1fca28f638c393f233
+DIST mouse-brain-atlasesHD-0.5.3.tar.xz 915990788 SHA256 b27ec957db076d20ce7c8f7ecf2748c84a7e2776a99371fc784079ca35ff74bd SHA512 46c74d41d323d4cdd7cdf5e8c8ceec03eecf5e7b5c83bb95b7ad4814e55dc32ada7f781710dc40145ffd751d650d35eb5727c460920b831135ab706f5e136718 WHIRLPOOL 7ec3e92fe6acee455c54587d90d92a330ca20d34df09ab02f5f46be01905e9c7c3e8a91a8ad7c44f8b8431150f52741cbcd57258f618f4a30b0776d19c0d1a06
diff --git a/sci-biology/mouse-brain-atlases/metadata.xml b/sci-biology/mouse-brain-atlases/metadata.xml
new file mode 100644
index 0000000..a8c20f1
--- /dev/null
+++ b/sci-biology/mouse-brain-atlases/metadata.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>horea.christ@gmail.com</email>
+		<name>Horea Christian</name>
+	</maintainer>
+	<maintainer type="project">
+		<email>sci@gentoo.org</email>
+		<name>Gentoo Science Project</name>
+	</maintainer>
+	<longdescription lang="en">
+		Digital mouse brain atlases in NIfTI format for use in magnetic
+		resonance mouse brain imaging.
+	</longdescription>
+	<use>
+		<flag name="hires">Also install high-resolution atlases.</flag>
+	</use>
+</pkgmetadata>
diff --git a/sci-biology/mouse-brain-atlases/mouse-brain-atlases-0.5.3.ebuild b/sci-biology/mouse-brain-atlases/mouse-brain-atlases-0.5.3.ebuild
new file mode 100644
index 0000000..65963d5
--- /dev/null
+++ b/sci-biology/mouse-brain-atlases/mouse-brain-atlases-0.5.3.ebuild
@@ -0,0 +1,44 @@
+# Copyright 1999-2018 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit check-reqs
+
+DESCRIPTION="A collection of mouse brain atlases in NIfTI format"
+HOMEPAGE="https://github.com/IBT-FMI/mouse-brain-atlases"
+SRC_URI="
+	http://chymera.eu/distfiles/${P}.tar.xz
+	hires? ( http://chymera.eu/distfiles/${PN}HD-${PV}.tar.xz )
+	"
+
+LICENSE="fairuse"
+SLOT="0"
+KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
+IUSE="hires"
+
+RDEPEND=""
+DEPEND=""
+
+pkg_pretend() {
+	if use hires; then
+		CHECKREQS_DISK_BUILD="4G"
+		CHECKREQS_DISK_USR="4G"
+		CHECKREQS_DISK_VAR="8G"
+	else
+		CHECKREQS_DISK_BUILD="500M"
+	fi
+	check-reqs_pkg_pretend
+}
+
+# We disable this phase to not check requirements twice.
+pkg_setup() { :; }
+
+src_install() {
+	insinto "/usr/share/${PN}"
+	doins *
+	if use hires; then
+		cd "../${PN}HD-${PV}"
+		doins *
+	fi
+}